./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e8d55036 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/soft_float_2a.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 f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 22:45:17,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 22:45:17,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 22:45:17,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 22:45:17,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 22:45:17,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 22:45:17,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 22:45:17,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 22:45:17,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 22:45:17,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 22:45:17,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 22:45:17,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 22:45:17,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 22:45:17,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 22:45:17,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 22:45:17,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 22:45:17,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 22:45:17,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 22:45:17,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 22:45:17,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 22:45:17,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 22:45:17,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 22:45:17,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 22:45:17,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 22:45:17,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 22:45:17,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 22:45:17,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 22:45:17,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 22:45:17,149 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 22:45:17,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 22:45:17,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 22:45:17,153 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 22:45:17,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 22:45:17,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 22:45:17,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 22:45:17,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 22:45:17,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 22:45:17,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 22:45:17,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 22:45:17,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 22:45:17,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 22:45:17,163 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-15 22:45:17,189 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 22:45:17,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 22:45:17,190 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 22:45:17,190 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 22:45:17,191 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 22:45:17,191 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 22:45:17,192 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 22:45:17,192 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 22:45:17,192 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 22:45:17,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 22:45:17,193 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 22:45:17,194 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 22:45:17,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 22:45:17,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 22:45:17,194 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 22:45:17,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 22:45:17,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 22:45:17,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 22:45:17,195 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 22:45:17,195 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 22:45:17,195 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 22:45:17,195 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 22:45:17,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 22:45:17,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 22:45:17,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 22:45:17,196 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 22:45:17,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:45:17,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 22:45:17,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 22:45:17,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 22:45:17,197 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 22:45:17,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 22:45:17,198 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 22:45:17,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 22:45:17,198 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 22:45:17,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 22:45:17,199 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 22:45:17,199 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f330893f1140a32f6e6dacd6cc5115391759545d59ea17334f6f3b644ed5a51c [2023-02-15 22:45:17,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 22:45:17,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 22:45:17,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 22:45:17,457 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 22:45:17,457 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 22:45:17,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2023-02-15 22:45:18,571 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 22:45:18,769 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 22:45:18,777 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_2a.c.cil.c [2023-02-15 22:45:18,783 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33b46b2fd/941bddaf1d384d0cab121a2b75706c00/FLAGe5a3d049e [2023-02-15 22:45:18,802 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33b46b2fd/941bddaf1d384d0cab121a2b75706c00 [2023-02-15 22:45:18,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 22:45:18,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 22:45:18,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 22:45:18,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 22:45:18,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 22:45:18,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:45:18" (1/1) ... [2023-02-15 22:45:18,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c90413a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:18, skipping insertion in model container [2023-02-15 22:45:18,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:45:18" (1/1) ... [2023-02-15 22:45:18,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 22:45:18,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 22:45:18,951 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_2a.c.cil.c[728,741] [2023-02-15 22:45:19,006 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:45:19,015 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 22:45:19,025 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_2a.c.cil.c[728,741] [2023-02-15 22:45:19,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:45:19,061 INFO L208 MainTranslator]: Completed translation [2023-02-15 22:45:19,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:19 WrapperNode [2023-02-15 22:45:19,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 22:45:19,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 22:45:19,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 22:45:19,062 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 22:45:19,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:19" (1/1) ... [2023-02-15 22:45:19,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:19" (1/1) ... [2023-02-15 22:45:19,098 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 178 [2023-02-15 22:45:19,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 22:45:19,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 22:45:19,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 22:45:19,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 22:45:19,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:19" (1/1) ... [2023-02-15 22:45:19,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:19" (1/1) ... [2023-02-15 22:45:19,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:19" (1/1) ... [2023-02-15 22:45:19,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:19" (1/1) ... [2023-02-15 22:45:19,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:19" (1/1) ... [2023-02-15 22:45:19,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:19" (1/1) ... [2023-02-15 22:45:19,142 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:19" (1/1) ... [2023-02-15 22:45:19,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:19" (1/1) ... [2023-02-15 22:45:19,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 22:45:19,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 22:45:19,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 22:45:19,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 22:45:19,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:19" (1/1) ... [2023-02-15 22:45:19,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:45:19,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:19,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 22:45:19,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 22:45:19,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 22:45:19,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 22:45:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-02-15 22:45:19,235 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-02-15 22:45:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 22:45:19,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 22:45:19,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-15 22:45:19,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-15 22:45:19,340 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 22:45:19,344 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 22:45:19,840 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 22:45:19,846 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 22:45:19,846 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 22:45:19,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:45:19 BoogieIcfgContainer [2023-02-15 22:45:19,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 22:45:19,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 22:45:19,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 22:45:19,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 22:45:19,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 10:45:18" (1/3) ... [2023-02-15 22:45:19,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@949fbce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:45:19, skipping insertion in model container [2023-02-15 22:45:19,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:19" (2/3) ... [2023-02-15 22:45:19,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@949fbce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:45:19, skipping insertion in model container [2023-02-15 22:45:19,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:45:19" (3/3) ... [2023-02-15 22:45:19,861 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_2a.c.cil.c [2023-02-15 22:45:19,876 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 22:45:19,876 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-02-15 22:45:19,920 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 22:45:19,925 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;@4814092b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 22:45:19,926 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-02-15 22:45:19,929 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 84 states have (on average 1.6785714285714286) internal successors, (141), 103 states have internal predecessors, (141), 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 22:45:19,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-15 22:45:19,934 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:19,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:19,935 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:19,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:19,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1074403763, now seen corresponding path program 1 times [2023-02-15 22:45:19,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:19,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101080251] [2023-02-15 22:45:19,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:19,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:20,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:45:20,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:20,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101080251] [2023-02-15 22:45:20,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101080251] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:20,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:20,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 22:45:20,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862331274] [2023-02-15 22:45:20,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:20,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:45:20,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:20,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:45:20,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:45:20,205 INFO L87 Difference]: Start difference. First operand has 110 states, 84 states have (on average 1.6785714285714286) internal successors, (141), 103 states have internal predecessors, (141), 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 22:45:20,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:20,362 INFO L93 Difference]: Finished difference Result 265 states and 384 transitions. [2023-02-15 22:45:20,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:45:20,365 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 22:45:20,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:20,373 INFO L225 Difference]: With dead ends: 265 [2023-02-15 22:45:20,373 INFO L226 Difference]: Without dead ends: 139 [2023-02-15 22:45:20,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:45:20,380 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 83 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 382 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 22:45:20,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 382 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:20,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-02-15 22:45:20,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 129. [2023-02-15 22:45:20,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 107 states have (on average 1.5327102803738317) 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 22:45:20,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 172 transitions. [2023-02-15 22:45:20,433 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 172 transitions. Word has length 9 [2023-02-15 22:45:20,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:20,433 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 172 transitions. [2023-02-15 22:45:20,434 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 22:45:20,434 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 172 transitions. [2023-02-15 22:45:20,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 22:45:20,436 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:20,436 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:20,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 22:45:20,436 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:20,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:20,437 INFO L85 PathProgramCache]: Analyzing trace with hash 336718349, now seen corresponding path program 1 times [2023-02-15 22:45:20,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:20,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256572739] [2023-02-15 22:45:20,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:20,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:20,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:45:20,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:20,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256572739] [2023-02-15 22:45:20,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256572739] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:20,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:20,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:45:20,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312675274] [2023-02-15 22:45:20,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:20,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:45:20,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:20,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:45:20,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:45:20,520 INFO L87 Difference]: Start difference. First operand 129 states and 172 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 22:45:20,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:20,610 INFO L93 Difference]: Finished difference Result 283 states and 378 transitions. [2023-02-15 22:45:20,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:45:20,610 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 22:45:20,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:20,612 INFO L225 Difference]: With dead ends: 283 [2023-02-15 22:45:20,612 INFO L226 Difference]: Without dead ends: 157 [2023-02-15 22:45:20,613 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 22:45:20,614 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 146 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:20,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 313 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:20,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-02-15 22:45:20,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 138. [2023-02-15 22:45:20,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 116 states have (on average 1.5172413793103448) internal successors, (176), 131 states have internal predecessors, (176), 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 22:45:20,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 184 transitions. [2023-02-15 22:45:20,631 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 184 transitions. Word has length 14 [2023-02-15 22:45:20,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:20,633 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 184 transitions. [2023-02-15 22:45:20,633 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 22:45:20,633 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 184 transitions. [2023-02-15 22:45:20,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-15 22:45:20,634 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:20,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:20,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 22:45:20,634 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:20,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:20,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1848334339, now seen corresponding path program 1 times [2023-02-15 22:45:20,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:20,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290737562] [2023-02-15 22:45:20,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:20,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:20,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:45:20,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:20,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290737562] [2023-02-15 22:45:20,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290737562] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:20,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:20,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:45:20,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334254426] [2023-02-15 22:45:20,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:20,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:45:20,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:20,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:45:20,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:45:20,774 INFO L87 Difference]: Start difference. First operand 138 states and 184 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 22:45:20,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:20,867 INFO L93 Difference]: Finished difference Result 165 states and 213 transitions. [2023-02-15 22:45:20,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:45:20,868 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 22:45:20,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:20,871 INFO L225 Difference]: With dead ends: 165 [2023-02-15 22:45:20,871 INFO L226 Difference]: Without dead ends: 163 [2023-02-15 22:45:20,875 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 22:45:20,877 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 112 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:20,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 403 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:20,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-02-15 22:45:20,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 138. [2023-02-15 22:45:20,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 116 states have (on average 1.5) internal successors, (174), 131 states have internal predecessors, (174), 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 22:45:20,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 182 transitions. [2023-02-15 22:45:20,895 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 182 transitions. Word has length 15 [2023-02-15 22:45:20,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:20,895 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 182 transitions. [2023-02-15 22:45:20,895 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 22:45:20,895 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 182 transitions. [2023-02-15 22:45:20,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 22:45:20,896 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:20,900 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:20,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 22:45:20,901 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:20,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:20,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1471974372, now seen corresponding path program 1 times [2023-02-15 22:45:20,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:20,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694037530] [2023-02-15 22:45:20,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:20,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:20,972 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 22:45:20,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:20,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694037530] [2023-02-15 22:45:20,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694037530] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:20,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:20,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:45:20,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105363178] [2023-02-15 22:45:20,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:20,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:45:20,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:20,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:45:20,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:45:20,976 INFO L87 Difference]: Start difference. First operand 138 states and 182 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 22:45:21,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:21,001 INFO L93 Difference]: Finished difference Result 146 states and 192 transitions. [2023-02-15 22:45:21,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:45:21,002 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 22:45:21,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:21,003 INFO L225 Difference]: With dead ends: 146 [2023-02-15 22:45:21,003 INFO L226 Difference]: Without dead ends: 145 [2023-02-15 22:45:21,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:45:21,013 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 4 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 212 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 22:45:21,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 212 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:45:21,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-02-15 22:45:21,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 135. [2023-02-15 22:45:21,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 114 states have (on average 1.4912280701754386) internal successors, (170), 128 states have internal predecessors, (170), 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 22:45:21,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 178 transitions. [2023-02-15 22:45:21,027 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 178 transitions. Word has length 16 [2023-02-15 22:45:21,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:21,028 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 178 transitions. [2023-02-15 22:45:21,028 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 22:45:21,028 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 178 transitions. [2023-02-15 22:45:21,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-15 22:45:21,029 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:21,029 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:21,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 22:45:21,029 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:21,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:21,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1615596652, now seen corresponding path program 1 times [2023-02-15 22:45:21,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:21,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253553157] [2023-02-15 22:45:21,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:21,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:21,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:21,134 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 22:45:21,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:21,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253553157] [2023-02-15 22:45:21,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253553157] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:21,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077981026] [2023-02-15 22:45:21,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:21,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:21,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:21,141 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:45:21,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 22:45:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:21,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 22:45:21,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:21,280 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 22:45:21,280 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 22:45:21,280 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077981026] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:21,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 22:45:21,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-02-15 22:45:21,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34854969] [2023-02-15 22:45:21,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:21,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:45:21,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:21,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:45:21,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-15 22:45:21,285 INFO L87 Difference]: Start difference. First operand 135 states and 178 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 22:45:21,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:21,338 INFO L93 Difference]: Finished difference Result 164 states and 219 transitions. [2023-02-15 22:45:21,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:45:21,339 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 22:45:21,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:21,341 INFO L225 Difference]: With dead ends: 164 [2023-02-15 22:45:21,342 INFO L226 Difference]: Without dead ends: 163 [2023-02-15 22:45:21,347 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 22:45:21,348 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 16 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 335 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 22:45:21,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 335 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:45:21,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-02-15 22:45:21,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 137. [2023-02-15 22:45:21,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 116 states have (on average 1.4913793103448276) internal successors, (173), 130 states have internal predecessors, (173), 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 22:45:21,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 181 transitions. [2023-02-15 22:45:21,374 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 181 transitions. Word has length 17 [2023-02-15 22:45:21,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:21,375 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 181 transitions. [2023-02-15 22:45:21,375 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 22:45:21,375 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 181 transitions. [2023-02-15 22:45:21,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-15 22:45:21,376 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:21,376 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:21,381 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 22:45:21,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:21,581 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:21,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:21,582 INFO L85 PathProgramCache]: Analyzing trace with hash 946405765, now seen corresponding path program 1 times [2023-02-15 22:45:21,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:21,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838757737] [2023-02-15 22:45:21,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:21,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:21,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:21,613 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 22:45:21,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:21,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838757737] [2023-02-15 22:45:21,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838757737] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:21,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:21,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 22:45:21,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166971659] [2023-02-15 22:45:21,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:21,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:45:21,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:21,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:45:21,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:45:21,615 INFO L87 Difference]: Start difference. First operand 137 states and 181 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 22:45:21,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:21,653 INFO L93 Difference]: Finished difference Result 170 states and 227 transitions. [2023-02-15 22:45:21,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:45:21,653 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 22:45:21,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:21,655 INFO L225 Difference]: With dead ends: 170 [2023-02-15 22:45:21,655 INFO L226 Difference]: Without dead ends: 168 [2023-02-15 22:45:21,655 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 22:45:21,656 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 18 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:21,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 319 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:45:21,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-02-15 22:45:21,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 139. [2023-02-15 22:45:21,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 119 states have (on average 1.4705882352941178) internal successors, (175), 132 states have internal predecessors, (175), 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 22:45:21,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 183 transitions. [2023-02-15 22:45:21,669 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 183 transitions. Word has length 19 [2023-02-15 22:45:21,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:21,669 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 183 transitions. [2023-02-15 22:45:21,669 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 22:45:21,670 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 183 transitions. [2023-02-15 22:45:21,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-15 22:45:21,673 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:21,673 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 22:45:21,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 22:45:21,674 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:21,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:21,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1019740832, now seen corresponding path program 1 times [2023-02-15 22:45:21,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:21,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428219240] [2023-02-15 22:45:21,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:21,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:21,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:21,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:21,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:21,724 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 22:45:21,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:21,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428219240] [2023-02-15 22:45:21,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428219240] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:21,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:21,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:45:21,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603701339] [2023-02-15 22:45:21,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:21,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:45:21,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:21,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:45:21,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:45:21,727 INFO L87 Difference]: Start difference. First operand 139 states and 183 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 22:45:21,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:21,795 INFO L93 Difference]: Finished difference Result 202 states and 269 transitions. [2023-02-15 22:45:21,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:45:21,796 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 22:45:21,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:21,797 INFO L225 Difference]: With dead ends: 202 [2023-02-15 22:45:21,797 INFO L226 Difference]: Without dead ends: 200 [2023-02-15 22:45:21,798 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 22:45:21,798 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 142 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 313 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 22:45:21,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 313 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:21,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-02-15 22:45:21,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 170. [2023-02-15 22:45:21,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 149 states have (on average 1.476510067114094) internal successors, (220), 162 states have internal predecessors, (220), 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 22:45:21,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 228 transitions. [2023-02-15 22:45:21,807 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 228 transitions. Word has length 24 [2023-02-15 22:45:21,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:21,807 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 228 transitions. [2023-02-15 22:45:21,807 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 22:45:21,807 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 228 transitions. [2023-02-15 22:45:21,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-15 22:45:21,808 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:21,808 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 22:45:21,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-15 22:45:21,808 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:21,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:21,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1048368188, now seen corresponding path program 1 times [2023-02-15 22:45:21,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:21,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873271262] [2023-02-15 22:45:21,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:21,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:21,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:21,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:21,864 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 22:45:21,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:21,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873271262] [2023-02-15 22:45:21,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873271262] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:21,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:21,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:45:21,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576924] [2023-02-15 22:45:21,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:21,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:45:21,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:21,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:45:21,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:45:21,866 INFO L87 Difference]: Start difference. First operand 170 states and 228 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 22:45:21,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:21,946 INFO L93 Difference]: Finished difference Result 194 states and 257 transitions. [2023-02-15 22:45:21,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:45:21,946 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 22:45:21,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:21,947 INFO L225 Difference]: With dead ends: 194 [2023-02-15 22:45:21,947 INFO L226 Difference]: Without dead ends: 192 [2023-02-15 22:45:21,948 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 22:45:21,948 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 143 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:21,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 313 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:21,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-02-15 22:45:21,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 163. [2023-02-15 22:45:21,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 142 states have (on average 1.4647887323943662) internal successors, (208), 155 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 22:45:21,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 216 transitions. [2023-02-15 22:45:21,957 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 216 transitions. Word has length 24 [2023-02-15 22:45:21,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:21,958 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 216 transitions. [2023-02-15 22:45:21,958 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 22:45:21,958 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 216 transitions. [2023-02-15 22:45:21,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-15 22:45:21,959 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:21,959 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 22:45:21,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-15 22:45:21,959 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:21,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:21,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1639510623, now seen corresponding path program 1 times [2023-02-15 22:45:21,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:21,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400284625] [2023-02-15 22:45:21,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:21,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:21,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:21,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:22,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:22,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-15 22:45:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:22,012 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 22:45:22,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:22,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400284625] [2023-02-15 22:45:22,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400284625] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:22,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:22,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:45:22,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594246483] [2023-02-15 22:45:22,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:22,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:45:22,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:22,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:45:22,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:45:22,014 INFO L87 Difference]: Start difference. First operand 163 states and 216 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 22:45:22,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:22,083 INFO L93 Difference]: Finished difference Result 187 states and 248 transitions. [2023-02-15 22:45:22,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:45:22,083 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 22:45:22,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:22,085 INFO L225 Difference]: With dead ends: 187 [2023-02-15 22:45:22,085 INFO L226 Difference]: Without dead ends: 185 [2023-02-15 22:45:22,085 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 22:45:22,088 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 140 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 306 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 22:45:22,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 306 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:45:22,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-02-15 22:45:22,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 157. [2023-02-15 22:45:22,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 138 states have (on average 1.4420289855072463) internal successors, (199), 149 states have internal predecessors, (199), 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 22:45:22,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 207 transitions. [2023-02-15 22:45:22,098 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 207 transitions. Word has length 31 [2023-02-15 22:45:22,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:22,098 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 207 transitions. [2023-02-15 22:45:22,098 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 22:45:22,098 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 207 transitions. [2023-02-15 22:45:22,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-15 22:45:22,100 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:22,100 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 22:45:22,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-15 22:45:22,101 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:22,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:22,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1668137979, now seen corresponding path program 1 times [2023-02-15 22:45:22,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:22,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98191329] [2023-02-15 22:45:22,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:22,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:22,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:22,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:22,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-15 22:45:22,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:22,172 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 22:45:22,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:22,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98191329] [2023-02-15 22:45:22,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98191329] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:22,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:22,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:45:22,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037122955] [2023-02-15 22:45:22,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:22,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:45:22,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:22,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:45:22,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:45:22,174 INFO L87 Difference]: Start difference. First operand 157 states and 207 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 22:45:22,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:22,237 INFO L93 Difference]: Finished difference Result 179 states and 236 transitions. [2023-02-15 22:45:22,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:45:22,238 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 22:45:22,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:22,239 INFO L225 Difference]: With dead ends: 179 [2023-02-15 22:45:22,239 INFO L226 Difference]: Without dead ends: 177 [2023-02-15 22:45:22,239 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 22:45:22,240 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 141 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 304 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 22:45:22,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 304 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:45:22,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-02-15 22:45:22,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 148. [2023-02-15 22:45:22,249 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 22:45:22,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 195 transitions. [2023-02-15 22:45:22,249 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 195 transitions. Word has length 31 [2023-02-15 22:45:22,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:22,250 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 195 transitions. [2023-02-15 22:45:22,250 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 22:45:22,250 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 195 transitions. [2023-02-15 22:45:22,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-15 22:45:22,250 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:22,251 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 22:45:22,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-02-15 22:45:22,251 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:22,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:22,252 INFO L85 PathProgramCache]: Analyzing trace with hash -2013703089, now seen corresponding path program 1 times [2023-02-15 22:45:22,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:22,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856301203] [2023-02-15 22:45:22,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:22,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:22,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:22,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:22,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-15 22:45:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:22,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 22:45:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:22,341 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 22:45:22,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:22,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856301203] [2023-02-15 22:45:22,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856301203] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:22,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557573403] [2023-02-15 22:45:22,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:22,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:22,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:22,345 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:45:22,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 22:45:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:22,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-15 22:45:22,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:22,496 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 22:45:22,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:45:22,645 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 22:45:22,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557573403] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:45:22,645 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:45:22,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 10, 8] total 18 [2023-02-15 22:45:22,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561649713] [2023-02-15 22:45:22,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:45:22,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-15 22:45:22,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:22,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-15 22:45:22,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2023-02-15 22:45:22,648 INFO L87 Difference]: Start difference. First operand 148 states and 195 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 22:45:23,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:23,110 INFO L93 Difference]: Finished difference Result 499 states and 641 transitions. [2023-02-15 22:45:23,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-02-15 22:45:23,111 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 22:45:23,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:23,112 INFO L225 Difference]: With dead ends: 499 [2023-02-15 22:45:23,112 INFO L226 Difference]: Without dead ends: 311 [2023-02-15 22:45:23,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=684, Unknown=0, NotChecked=0, Total=812 [2023-02-15 22:45:23,114 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 215 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 1270 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:23,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 1270 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 22:45:23,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-02-15 22:45:23,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 149. [2023-02-15 22:45:23,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 131 states have (on average 1.381679389312977) internal successors, (181), 140 states have internal predecessors, (181), 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 22:45:23,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 189 transitions. [2023-02-15 22:45:23,126 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 189 transitions. Word has length 37 [2023-02-15 22:45:23,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:23,126 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 189 transitions. [2023-02-15 22:45:23,127 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 22:45:23,127 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 189 transitions. [2023-02-15 22:45:23,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-02-15 22:45:23,127 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:23,127 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 22:45:23,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 22:45:23,333 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 22:45:23,334 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:23,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:23,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1912507181, now seen corresponding path program 1 times [2023-02-15 22:45:23,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:23,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534404926] [2023-02-15 22:45:23,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:23,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:23,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:23,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:23,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-15 22:45:23,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:23,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-15 22:45:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:23,457 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 22:45:23,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:23,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534404926] [2023-02-15 22:45:23,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534404926] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:23,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:23,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-15 22:45:23,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534560693] [2023-02-15 22:45:23,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:23,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 22:45:23,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:23,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 22:45:23,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-02-15 22:45:23,459 INFO L87 Difference]: Start difference. First operand 149 states and 189 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 22:45:23,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:23,553 INFO L93 Difference]: Finished difference Result 308 states and 371 transitions. [2023-02-15 22:45:23,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 22:45:23,554 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 22:45:23,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:23,557 INFO L225 Difference]: With dead ends: 308 [2023-02-15 22:45:23,557 INFO L226 Difference]: Without dead ends: 250 [2023-02-15 22:45:23,557 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 22:45:23,558 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 157 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:23,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 678 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:23,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-02-15 22:45:23,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 149. [2023-02-15 22:45:23,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 131 states have (on average 1.366412213740458) internal successors, (179), 140 states have internal predecessors, (179), 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 22:45:23,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 187 transitions. [2023-02-15 22:45:23,568 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 187 transitions. Word has length 54 [2023-02-15 22:45:23,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:23,569 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 187 transitions. [2023-02-15 22:45:23,569 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 22:45:23,569 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 187 transitions. [2023-02-15 22:45:23,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-02-15 22:45:23,570 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:23,570 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 22:45:23,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-02-15 22:45:23,570 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:23,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:23,571 INFO L85 PathProgramCache]: Analyzing trace with hash 2123327684, now seen corresponding path program 2 times [2023-02-15 22:45:23,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:23,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778567145] [2023-02-15 22:45:23,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:23,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:23,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:23,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:23,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:23,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-15 22:45:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:23,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-15 22:45:23,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:23,709 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 22:45:23,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:23,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778567145] [2023-02-15 22:45:23,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778567145] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:23,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:23,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-15 22:45:23,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633206133] [2023-02-15 22:45:23,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:23,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 22:45:23,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:23,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 22:45:23,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-02-15 22:45:23,712 INFO L87 Difference]: Start difference. First operand 149 states and 187 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 22:45:23,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:23,812 INFO L93 Difference]: Finished difference Result 298 states and 361 transitions. [2023-02-15 22:45:23,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 22:45:23,813 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 22:45:23,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:23,814 INFO L225 Difference]: With dead ends: 298 [2023-02-15 22:45:23,814 INFO L226 Difference]: Without dead ends: 253 [2023-02-15 22:45:23,815 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 22:45:23,815 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 208 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:23,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 839 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:23,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-02-15 22:45:23,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 174. [2023-02-15 22:45:23,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 155 states have (on average 1.3548387096774193) internal successors, (210), 164 states have internal predecessors, (210), 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 22:45:23,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 219 transitions. [2023-02-15 22:45:23,825 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 219 transitions. Word has length 58 [2023-02-15 22:45:23,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:23,825 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 219 transitions. [2023-02-15 22:45:23,826 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 22:45:23,826 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 219 transitions. [2023-02-15 22:45:23,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-02-15 22:45:23,826 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:23,826 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 22:45:23,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-02-15 22:45:23,827 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:23,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:23,827 INFO L85 PathProgramCache]: Analyzing trace with hash 2123329606, now seen corresponding path program 1 times [2023-02-15 22:45:23,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:23,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668795197] [2023-02-15 22:45:23,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:23,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:23,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:23,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:23,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:23,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-15 22:45:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:23,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-15 22:45:23,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:23,942 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 22:45:23,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:23,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668795197] [2023-02-15 22:45:23,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668795197] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:23,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402870181] [2023-02-15 22:45:23,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:23,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:23,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:23,944 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:45:23,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 22:45:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:24,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-15 22:45:24,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:24,124 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 22:45:24,124 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 22:45:24,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402870181] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:24,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 22:45:24,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2023-02-15 22:45:24,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841676577] [2023-02-15 22:45:24,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:24,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 22:45:24,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:24,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 22:45:24,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-02-15 22:45:24,126 INFO L87 Difference]: Start difference. First operand 174 states and 219 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 22:45:24,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:24,250 INFO L93 Difference]: Finished difference Result 349 states and 432 transitions. [2023-02-15 22:45:24,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-15 22:45:24,250 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 22:45:24,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:24,252 INFO L225 Difference]: With dead ends: 349 [2023-02-15 22:45:24,252 INFO L226 Difference]: Without dead ends: 281 [2023-02-15 22:45:24,253 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 22:45:24,253 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 161 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:24,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 735 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:24,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-02-15 22:45:24,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 198. [2023-02-15 22:45:24,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 177 states have (on average 1.3220338983050848) internal successors, (234), 185 states have internal predecessors, (234), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2023-02-15 22:45:24,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 247 transitions. [2023-02-15 22:45:24,264 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 247 transitions. Word has length 58 [2023-02-15 22:45:24,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:24,265 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 247 transitions. [2023-02-15 22:45:24,265 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 22:45:24,265 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 247 transitions. [2023-02-15 22:45:24,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-02-15 22:45:24,266 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:24,266 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 22:45:24,279 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 22:45:24,473 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 22:45:24,473 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:24,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:24,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1746371489, now seen corresponding path program 1 times [2023-02-15 22:45:24,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:24,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39340996] [2023-02-15 22:45:24,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:24,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:24,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:24,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:24,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:24,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-15 22:45:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:24,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-02-15 22:45:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:24,586 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 22:45:24,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:24,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39340996] [2023-02-15 22:45:24,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39340996] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:24,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257785521] [2023-02-15 22:45:24,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:24,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:24,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:24,587 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:45:24,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 22:45:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:24,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-15 22:45:24,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:24,706 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 22:45:24,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:45:24,818 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 22:45:24,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257785521] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:45:24,818 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:45:24,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 6] total 14 [2023-02-15 22:45:24,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938014291] [2023-02-15 22:45:24,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:45:24,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-15 22:45:24,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:24,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-15 22:45:24,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-02-15 22:45:24,820 INFO L87 Difference]: Start difference. First operand 198 states and 247 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 22:45:25,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:25,212 INFO L93 Difference]: Finished difference Result 425 states and 532 transitions. [2023-02-15 22:45:25,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-02-15 22:45:25,213 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 22:45:25,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:25,214 INFO L225 Difference]: With dead ends: 425 [2023-02-15 22:45:25,214 INFO L226 Difference]: Without dead ends: 258 [2023-02-15 22:45:25,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2023-02-15 22:45:25,215 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 221 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:25,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 776 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 22:45:25,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2023-02-15 22:45:25,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 189. [2023-02-15 22:45:25,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 168 states have (on average 1.2976190476190477) internal successors, (218), 177 states have internal predecessors, (218), 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 22:45:25,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 231 transitions. [2023-02-15 22:45:25,228 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 231 transitions. Word has length 63 [2023-02-15 22:45:25,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:25,228 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 231 transitions. [2023-02-15 22:45:25,229 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 22:45:25,229 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 231 transitions. [2023-02-15 22:45:25,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-02-15 22:45:25,229 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:25,229 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 22:45:25,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 22:45:25,439 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,SelfDestructingSolverStorable14 [2023-02-15 22:45:25,439 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:25,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:25,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1713333159, now seen corresponding path program 1 times [2023-02-15 22:45:25,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:25,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732078033] [2023-02-15 22:45:25,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:25,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:25,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:25,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:25,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:25,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:25,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-02-15 22:45:25,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:25,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-02-15 22:45:25,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:25,576 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-02-15 22:45:25,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:25,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732078033] [2023-02-15 22:45:25,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732078033] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:25,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:25,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-02-15 22:45:25,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979553412] [2023-02-15 22:45:25,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:25,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 22:45:25,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:25,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 22:45:25,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-02-15 22:45:25,578 INFO L87 Difference]: Start difference. First operand 189 states and 231 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) 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 22:45:25,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:25,749 INFO L93 Difference]: Finished difference Result 497 states and 589 transitions. [2023-02-15 22:45:25,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 22:45:25,749 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) 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 66 [2023-02-15 22:45:25,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:25,751 INFO L225 Difference]: With dead ends: 497 [2023-02-15 22:45:25,751 INFO L226 Difference]: Without dead ends: 454 [2023-02-15 22:45:25,752 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 22:45:25,752 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 486 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:25,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 727 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:25,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2023-02-15 22:45:25,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 213. [2023-02-15 22:45:25,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 191 states have (on average 1.3036649214659686) internal successors, (249), 200 states have internal predecessors, (249), 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 22:45:25,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 264 transitions. [2023-02-15 22:45:25,767 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 264 transitions. Word has length 66 [2023-02-15 22:45:25,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:25,767 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 264 transitions. [2023-02-15 22:45:25,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) 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 22:45:25,768 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 264 transitions. [2023-02-15 22:45:25,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-02-15 22:45:25,768 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:25,768 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 22:45:25,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-02-15 22:45:25,769 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:25,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:25,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1713331237, now seen corresponding path program 1 times [2023-02-15 22:45:25,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:25,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699548637] [2023-02-15 22:45:25,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:25,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:25,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:25,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:25,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-02-15 22:45:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:25,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-02-15 22:45:25,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:25,865 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 22:45:25,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:25,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699548637] [2023-02-15 22:45:25,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699548637] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:25,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038823682] [2023-02-15 22:45:25,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:25,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:25,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:25,866 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:45:25,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 22:45:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:25,932 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 22:45:25,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:25,986 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 22:45:25,986 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:45:26,091 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 22:45:26,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038823682] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:45:26,091 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:45:26,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2023-02-15 22:45:26,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89363127] [2023-02-15 22:45:26,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:45:26,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-15 22:45:26,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:26,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-15 22:45:26,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2023-02-15 22:45:26,094 INFO L87 Difference]: Start difference. First operand 213 states and 264 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 22:45:26,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:26,325 INFO L93 Difference]: Finished difference Result 726 states and 929 transitions. [2023-02-15 22:45:26,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-15 22:45:26,326 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 22:45:26,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:26,328 INFO L225 Difference]: With dead ends: 726 [2023-02-15 22:45:26,328 INFO L226 Difference]: Without dead ends: 541 [2023-02-15 22:45:26,329 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 22:45:26,329 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 239 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:26,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 526 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:26,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-02-15 22:45:26,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 240. [2023-02-15 22:45:26,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 218 states have (on average 1.298165137614679) internal successors, (283), 227 states have internal predecessors, (283), 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 22:45:26,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 298 transitions. [2023-02-15 22:45:26,359 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 298 transitions. Word has length 66 [2023-02-15 22:45:26,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:26,360 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 298 transitions. [2023-02-15 22:45:26,360 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 22:45:26,360 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 298 transitions. [2023-02-15 22:45:26,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-02-15 22:45:26,361 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:26,361 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 22:45:26,373 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 22:45:26,566 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 22:45:26,567 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:26,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:26,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1090635625, now seen corresponding path program 1 times [2023-02-15 22:45:26,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:26,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087770701] [2023-02-15 22:45:26,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:26,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:26,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:26,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:26,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-02-15 22:45:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:26,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-02-15 22:45:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:26,705 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 22:45:26,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:26,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087770701] [2023-02-15 22:45:26,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087770701] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:26,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205230228] [2023-02-15 22:45:26,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:26,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:26,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:26,707 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:45:26,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 22:45:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:26,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 27 conjunts are in the unsatisfiable core [2023-02-15 22:45:26,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:27,042 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-02-15 22:45:27,043 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 22:45:27,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205230228] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:27,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 22:45:27,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 16 [2023-02-15 22:45:27,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36679405] [2023-02-15 22:45:27,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:27,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 22:45:27,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:27,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 22:45:27,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-02-15 22:45:27,046 INFO L87 Difference]: Start difference. First operand 240 states and 298 transitions. Second operand has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 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 22:45:27,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:27,666 INFO L93 Difference]: Finished difference Result 618 states and 739 transitions. [2023-02-15 22:45:27,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-15 22:45:27,666 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 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 70 [2023-02-15 22:45:27,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:27,669 INFO L225 Difference]: With dead ends: 618 [2023-02-15 22:45:27,669 INFO L226 Difference]: Without dead ends: 575 [2023-02-15 22:45:27,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=645, Unknown=0, NotChecked=0, Total=756 [2023-02-15 22:45:27,670 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 653 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:27,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 1519 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 22:45:27,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-02-15 22:45:27,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 273. [2023-02-15 22:45:27,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 250 states have (on average 1.304) internal successors, (326), 259 states have internal predecessors, (326), 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 22:45:27,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 343 transitions. [2023-02-15 22:45:27,692 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 343 transitions. Word has length 70 [2023-02-15 22:45:27,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:27,692 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 343 transitions. [2023-02-15 22:45:27,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.636363636363637) internal successors, (51), 11 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 22:45:27,693 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 343 transitions. [2023-02-15 22:45:27,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-02-15 22:45:27,694 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:27,694 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 22:45:27,703 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 22:45:27,900 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 22:45:27,900 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:27,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:27,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1147892005, now seen corresponding path program 1 times [2023-02-15 22:45:27,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:27,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241833225] [2023-02-15 22:45:27,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:27,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:27,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:27,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:27,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-02-15 22:45:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:27,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-02-15 22:45:27,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:27,985 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-02-15 22:45:27,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:27,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241833225] [2023-02-15 22:45:27,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241833225] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:27,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822656653] [2023-02-15 22:45:27,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:27,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:27,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:27,987 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:45:27,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 22:45:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:28,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 22:45:28,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:28,084 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-02-15 22:45:28,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:45:28,162 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-02-15 22:45:28,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822656653] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:45:28,163 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:45:28,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2023-02-15 22:45:28,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223798505] [2023-02-15 22:45:28,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:45:28,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 22:45:28,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:28,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 22:45:28,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-02-15 22:45:28,167 INFO L87 Difference]: Start difference. First operand 273 states and 343 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 22:45:28,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:28,282 INFO L93 Difference]: Finished difference Result 478 states and 593 transitions. [2023-02-15 22:45:28,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 22:45:28,283 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 70 [2023-02-15 22:45:28,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:28,285 INFO L225 Difference]: With dead ends: 478 [2023-02-15 22:45:28,285 INFO L226 Difference]: Without dead ends: 413 [2023-02-15 22:45:28,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-02-15 22:45:28,286 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 153 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:28,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1057 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:28,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2023-02-15 22:45:28,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 297. [2023-02-15 22:45:28,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 274 states have (on average 1.2992700729927007) internal successors, (356), 280 states have internal predecessors, (356), 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 22:45:28,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 373 transitions. [2023-02-15 22:45:28,305 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 373 transitions. Word has length 70 [2023-02-15 22:45:28,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:28,305 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 373 transitions. [2023-02-15 22:45:28,306 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 22:45:28,306 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 373 transitions. [2023-02-15 22:45:28,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-02-15 22:45:28,307 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:28,307 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 22:45:28,313 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 22:45:28,512 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 22:45:28,513 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:28,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:28,513 INFO L85 PathProgramCache]: Analyzing trace with hash 1147893927, now seen corresponding path program 1 times [2023-02-15 22:45:28,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:28,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780061513] [2023-02-15 22:45:28,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:28,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:28,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:28,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:28,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-02-15 22:45:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:28,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-02-15 22:45:28,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:28,637 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 22:45:28,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:28,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780061513] [2023-02-15 22:45:28,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780061513] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:28,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144053589] [2023-02-15 22:45:28,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:28,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:28,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:28,639 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:45:28,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 22:45:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:28,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 22:45:28,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:28,757 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 22:45:28,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:45:28,850 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 22:45:28,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144053589] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:45:28,851 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:45:28,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-02-15 22:45:28,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757381268] [2023-02-15 22:45:28,851 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:45:28,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-15 22:45:28,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:28,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-15 22:45:28,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-02-15 22:45:28,853 INFO L87 Difference]: Start difference. First operand 297 states and 373 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 22:45:29,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:29,120 INFO L93 Difference]: Finished difference Result 674 states and 856 transitions. [2023-02-15 22:45:29,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 22:45:29,121 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 22:45:29,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:29,124 INFO L225 Difference]: With dead ends: 674 [2023-02-15 22:45:29,124 INFO L226 Difference]: Without dead ends: 418 [2023-02-15 22:45:29,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 143 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=186, Unknown=0, NotChecked=0, Total=306 [2023-02-15 22:45:29,125 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 123 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:29,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 487 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:29,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2023-02-15 22:45:29,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 290. [2023-02-15 22:45:29,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 267 states have (on average 1.2808988764044944) internal successors, (342), 273 states have internal predecessors, (342), 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 22:45:29,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 359 transitions. [2023-02-15 22:45:29,150 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 359 transitions. Word has length 70 [2023-02-15 22:45:29,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:29,150 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 359 transitions. [2023-02-15 22:45:29,151 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 22:45:29,151 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 359 transitions. [2023-02-15 22:45:29,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-02-15 22:45:29,151 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:29,152 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 22:45:29,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-15 22:45:29,357 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 22:45:29,358 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:29,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:29,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1405609575, now seen corresponding path program 1 times [2023-02-15 22:45:29,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:29,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276447763] [2023-02-15 22:45:29,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:29,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:29,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:29,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:29,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-02-15 22:45:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:29,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-02-15 22:45:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:29,534 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 22:45:29,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:29,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276447763] [2023-02-15 22:45:29,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276447763] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:29,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273885022] [2023-02-15 22:45:29,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:29,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:29,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:29,536 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:45:29,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 22:45:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:29,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 22:45:29,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:29,707 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 22:45:29,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:45:29,968 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 22:45:29,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273885022] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:45:29,968 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:45:29,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2023-02-15 22:45:29,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443652937] [2023-02-15 22:45:29,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:45:29,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-02-15 22:45:29,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:29,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-02-15 22:45:29,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=420, Unknown=0, NotChecked=0, Total=650 [2023-02-15 22:45:29,971 INFO L87 Difference]: Start difference. First operand 290 states and 359 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 22:45:30,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:30,442 INFO L93 Difference]: Finished difference Result 1204 states and 1555 transitions. [2023-02-15 22:45:30,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-02-15 22:45:30,442 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 22:45:30,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:30,446 INFO L225 Difference]: With dead ends: 1204 [2023-02-15 22:45:30,446 INFO L226 Difference]: Without dead ends: 962 [2023-02-15 22:45:30,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=488, Invalid=772, Unknown=0, NotChecked=0, Total=1260 [2023-02-15 22:45:30,447 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 570 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:30,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 721 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 22:45:30,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2023-02-15 22:45:30,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 337. [2023-02-15 22:45:30,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 314 states have (on average 1.2738853503184713) internal successors, (400), 320 states have internal predecessors, (400), 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 22:45:30,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 417 transitions. [2023-02-15 22:45:30,478 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 417 transitions. Word has length 86 [2023-02-15 22:45:30,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:30,478 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 417 transitions. [2023-02-15 22:45:30,478 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 22:45:30,478 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 417 transitions. [2023-02-15 22:45:30,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-02-15 22:45:30,479 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:30,479 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 22:45:30,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-15 22:45:30,685 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 22:45:30,685 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:30,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:30,685 INFO L85 PathProgramCache]: Analyzing trace with hash -438108889, now seen corresponding path program 2 times [2023-02-15 22:45:30,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:30,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421036752] [2023-02-15 22:45:30,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:30,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:30,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:30,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:30,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-02-15 22:45:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:30,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 22:45:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:30,951 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 22:45:30,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:30,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421036752] [2023-02-15 22:45:30,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421036752] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:30,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710005799] [2023-02-15 22:45:30,951 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:45:30,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:30,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:30,953 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:45:30,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 22:45:31,058 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 22:45:31,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:45:31,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-15 22:45:31,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:31,132 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 22:45:31,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:45:31,410 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 22:45:31,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710005799] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:45:31,411 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:45:31,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 7] total 21 [2023-02-15 22:45:31,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007448077] [2023-02-15 22:45:31,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:45:31,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-02-15 22:45:31,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:31,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-02-15 22:45:31,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2023-02-15 22:45:31,413 INFO L87 Difference]: Start difference. First operand 337 states and 417 transitions. Second operand has 21 states, 21 states have (on average 5.285714285714286) internal successors, (111), 19 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 22:45:32,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:32,107 INFO L93 Difference]: Finished difference Result 767 states and 958 transitions. [2023-02-15 22:45:32,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-02-15 22:45:32,109 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 5.285714285714286) internal successors, (111), 19 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 22:45:32,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:32,112 INFO L225 Difference]: With dead ends: 767 [2023-02-15 22:45:32,112 INFO L226 Difference]: Without dead ends: 522 [2023-02-15 22:45:32,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=168, Invalid=702, Unknown=0, NotChecked=0, Total=870 [2023-02-15 22:45:32,113 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 425 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:32,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 1005 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-15 22:45:32,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2023-02-15 22:45:32,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 337. [2023-02-15 22:45:32,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 314 states have (on average 1.2611464968152866) internal successors, (396), 320 states have internal predecessors, (396), 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 22:45:32,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 413 transitions. [2023-02-15 22:45:32,140 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 413 transitions. Word has length 90 [2023-02-15 22:45:32,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:32,140 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 413 transitions. [2023-02-15 22:45:32,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 5.285714285714286) internal successors, (111), 19 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 22:45:32,140 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 413 transitions. [2023-02-15 22:45:32,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-02-15 22:45:32,143 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:32,143 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 22:45:32,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-15 22:45:32,353 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 22:45:32,353 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:32,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:32,353 INFO L85 PathProgramCache]: Analyzing trace with hash 561242905, now seen corresponding path program 2 times [2023-02-15 22:45:32,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:32,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995502506] [2023-02-15 22:45:32,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:32,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:32,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:32,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:32,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-02-15 22:45:32,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:32,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-02-15 22:45:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:32,637 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 22:45:32,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:32,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995502506] [2023-02-15 22:45:32,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995502506] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:32,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441554261] [2023-02-15 22:45:32,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:45:32,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:32,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:32,639 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:45:32,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-15 22:45:32,709 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-15 22:45:32,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:45:32,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-15 22:45:32,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:32,785 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 22:45:32,786 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 22:45:32,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441554261] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:32,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 22:45:32,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2023-02-15 22:45:32,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016788358] [2023-02-15 22:45:32,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:32,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 22:45:32,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:32,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 22:45:32,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-02-15 22:45:32,788 INFO L87 Difference]: Start difference. First operand 337 states and 413 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 22:45:32,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:32,895 INFO L93 Difference]: Finished difference Result 418 states and 502 transitions. [2023-02-15 22:45:32,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 22:45:32,896 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 22:45:32,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:32,897 INFO L225 Difference]: With dead ends: 418 [2023-02-15 22:45:32,897 INFO L226 Difference]: Without dead ends: 416 [2023-02-15 22:45:32,898 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 22:45:32,898 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 199 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:32,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 887 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:32,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2023-02-15 22:45:32,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 328. [2023-02-15 22:45:32,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 305 states have (on average 1.2655737704918033) internal successors, (386), 311 states have internal predecessors, (386), 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 22:45:32,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 403 transitions. [2023-02-15 22:45:32,921 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 403 transitions. Word has length 95 [2023-02-15 22:45:32,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:32,922 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 403 transitions. [2023-02-15 22:45:32,922 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 22:45:32,922 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 403 transitions. [2023-02-15 22:45:32,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-02-15 22:45:32,923 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:32,923 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 22:45:32,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-15 22:45:33,129 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 22:45:33,130 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:33,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:33,130 INFO L85 PathProgramCache]: Analyzing trace with hash 618501207, now seen corresponding path program 3 times [2023-02-15 22:45:33,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:33,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843459162] [2023-02-15 22:45:33,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:33,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:33,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:33,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:33,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:33,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-02-15 22:45:33,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:33,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-02-15 22:45:33,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:33,427 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 22:45:33,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:33,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843459162] [2023-02-15 22:45:33,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843459162] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:33,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069815278] [2023-02-15 22:45:33,428 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 22:45:33,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:33,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:33,429 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:45:33,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-15 22:45:33,487 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-02-15 22:45:33,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:45:33,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-15 22:45:33,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:33,599 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 22:45:33,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 22:45:33,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069815278] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:33,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 22:45:33,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 18 [2023-02-15 22:45:33,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053840370] [2023-02-15 22:45:33,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:33,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 22:45:33,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:33,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 22:45:33,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2023-02-15 22:45:33,601 INFO L87 Difference]: Start difference. First operand 328 states and 403 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 22:45:33,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:33,797 INFO L93 Difference]: Finished difference Result 445 states and 532 transitions. [2023-02-15 22:45:33,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-15 22:45:33,799 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 22:45:33,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:33,800 INFO L225 Difference]: With dead ends: 445 [2023-02-15 22:45:33,800 INFO L226 Difference]: Without dead ends: 405 [2023-02-15 22:45:33,801 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 22:45:33,801 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 239 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:33,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 708 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:33,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2023-02-15 22:45:33,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 323. [2023-02-15 22:45:33,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 300 states have (on average 1.26) internal successors, (378), 306 states have internal predecessors, (378), 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 22:45:33,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 395 transitions. [2023-02-15 22:45:33,825 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 395 transitions. Word has length 95 [2023-02-15 22:45:33,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:33,825 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 395 transitions. [2023-02-15 22:45:33,825 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 22:45:33,825 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 395 transitions. [2023-02-15 22:45:33,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-02-15 22:45:33,827 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:33,827 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 22:45:33,832 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 22:45:34,032 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 22:45:34,032 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:34,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:34,032 INFO L85 PathProgramCache]: Analyzing trace with hash -181994344, now seen corresponding path program 1 times [2023-02-15 22:45:34,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:34,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273507073] [2023-02-15 22:45:34,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:34,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:34,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:34,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:34,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:34,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-02-15 22:45:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:34,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-02-15 22:45:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:34,340 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 22:45:34,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:34,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273507073] [2023-02-15 22:45:34,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273507073] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:34,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951883535] [2023-02-15 22:45:34,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:34,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:34,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:34,343 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:45:34,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-15 22:45:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:34,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-15 22:45:34,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:34,649 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 22:45:34,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:45:35,021 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 22:45:35,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951883535] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:45:35,021 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:45:35,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2023-02-15 22:45:35,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211262422] [2023-02-15 22:45:35,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:45:35,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-02-15 22:45:35,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:35,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-02-15 22:45:35,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=522, Unknown=0, NotChecked=0, Total=756 [2023-02-15 22:45:35,023 INFO L87 Difference]: Start difference. First operand 323 states and 395 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 22:45:41,233 WARN L233 SmtUtils]: Spent 6.00s on a formula simplification. DAG size of input: 53 DAG size of output: 17 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 22:45:56,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:56,374 INFO L93 Difference]: Finished difference Result 834 states and 1052 transitions. [2023-02-15 22:45:56,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-02-15 22:45:56,375 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 22:45:56,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:56,377 INFO L225 Difference]: With dead ends: 834 [2023-02-15 22:45:56,377 INFO L226 Difference]: Without dead ends: 585 [2023-02-15 22:45:56,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 199 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 21.0s TimeCoverageRelationStatistics Valid=637, Invalid=1166, Unknown=3, NotChecked=0, Total=1806 [2023-02-15 22:45:56,379 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 236 mSDsluCounter, 1014 mSDsCounter, 0 mSdLazyCounter, 977 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:56,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 1132 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 977 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-15 22:45:56,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2023-02-15 22:45:56,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 324. [2023-02-15 22:45:56,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 301 states have (on average 1.2292358803986712) internal successors, (370), 307 states have internal predecessors, (370), 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 22:45:56,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 387 transitions. [2023-02-15 22:45:56,414 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 387 transitions. Word has length 100 [2023-02-15 22:45:56,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:56,415 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 387 transitions. [2023-02-15 22:45:56,415 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 22:45:56,416 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 387 transitions. [2023-02-15 22:45:56,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-02-15 22:45:56,417 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:56,417 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 22:45:56,425 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 22:45:56,623 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 22:45:56,623 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:56,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:56,624 INFO L85 PathProgramCache]: Analyzing trace with hash -794068912, now seen corresponding path program 1 times [2023-02-15 22:45:56,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:56,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241965003] [2023-02-15 22:45:56,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:56,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:56,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:56,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:57,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-02-15 22:45:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:57,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 22:45:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:57,079 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 22:45:57,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:57,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241965003] [2023-02-15 22:45:57,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241965003] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:57,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124622866] [2023-02-15 22:45:57,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:57,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:57,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:57,081 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 22:45:57,084 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 22:45:57,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:57,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-15 22:45:57,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:57,413 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 22:45:57,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:45:58,085 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 22:45:58,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124622866] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:45:58,085 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:45:58,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 50 [2023-02-15 22:45:58,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632170175] [2023-02-15 22:45:58,085 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:45:58,086 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-02-15 22:45:58,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:58,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-02-15 22:45:58,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=846, Invalid=1604, Unknown=0, NotChecked=0, Total=2450 [2023-02-15 22:45:58,088 INFO L87 Difference]: Start difference. First operand 324 states and 387 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 22:45:59,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:59,197 INFO L93 Difference]: Finished difference Result 1897 states and 2456 transitions. [2023-02-15 22:45:59,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-02-15 22:45:59,198 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 22:45:59,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:59,203 INFO L225 Difference]: With dead ends: 1897 [2023-02-15 22:45:59,203 INFO L226 Difference]: Without dead ends: 1670 [2023-02-15 22:45:59,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1744, Invalid=2812, Unknown=0, NotChecked=0, Total=4556 [2023-02-15 22:45:59,205 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 1771 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1771 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:59,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1771 Valid, 951 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-15 22:45:59,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2023-02-15 22:45:59,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 403. [2023-02-15 22:45:59,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 380 states have (on average 1.2236842105263157) internal successors, (465), 386 states have internal predecessors, (465), 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 22:45:59,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 482 transitions. [2023-02-15 22:45:59,258 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 482 transitions. Word has length 131 [2023-02-15 22:45:59,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:59,259 INFO L495 AbstractCegarLoop]: Abstraction has 403 states and 482 transitions. [2023-02-15 22:45:59,259 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 22:45:59,259 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 482 transitions. [2023-02-15 22:45:59,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-02-15 22:45:59,260 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:59,260 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 22:45:59,266 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 22:45:59,466 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 22:45:59,468 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:45:59,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:59,468 INFO L85 PathProgramCache]: Analyzing trace with hash 568245058, now seen corresponding path program 2 times [2023-02-15 22:45:59,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:59,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272879110] [2023-02-15 22:45:59,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:59,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:59,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:59,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:59,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:00,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-02-15 22:46:00,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:00,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-02-15 22:46:00,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:00,112 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 22:46:00,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:00,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272879110] [2023-02-15 22:46:00,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272879110] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:00,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736804337] [2023-02-15 22:46:00,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:46:00,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:00,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:00,117 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 22:46:00,125 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 22:46:00,223 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 22:46:00,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:46:00,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-15 22:46:00,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:00,647 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 22:46:00,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:46:01,266 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 22:46:01,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736804337] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:46:01,267 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:46:01,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10, 9] total 37 [2023-02-15 22:46:01,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674242749] [2023-02-15 22:46:01,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:46:01,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-02-15 22:46:01,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:01,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-02-15 22:46:01,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1219, Unknown=0, NotChecked=0, Total=1332 [2023-02-15 22:46:01,269 INFO L87 Difference]: Start difference. First operand 403 states and 482 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 22:46:03,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:03,448 INFO L93 Difference]: Finished difference Result 1229 states and 1497 transitions. [2023-02-15 22:46:03,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-02-15 22:46:03,448 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 22:46:03,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:03,451 INFO L225 Difference]: With dead ends: 1229 [2023-02-15 22:46:03,452 INFO L226 Difference]: Without dead ends: 998 [2023-02-15 22:46:03,453 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 22:46:03,453 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 932 mSDsluCounter, 4598 mSDsCounter, 0 mSdLazyCounter, 2464 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 4824 SdHoareTripleChecker+Invalid, 2545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:03,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 4824 Invalid, 2545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2464 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-02-15 22:46:03,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2023-02-15 22:46:03,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 441. [2023-02-15 22:46:03,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 416 states have (on average 1.2331730769230769) internal successors, (513), 420 states have internal predecessors, (513), 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 22:46:03,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 536 transitions. [2023-02-15 22:46:03,501 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 536 transitions. Word has length 145 [2023-02-15 22:46:03,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:03,501 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 536 transitions. [2023-02-15 22:46:03,501 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 22:46:03,501 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 536 transitions. [2023-02-15 22:46:03,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-02-15 22:46:03,503 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:03,503 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 22:46:03,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-15 22:46:03,708 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 22:46:03,709 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:46:03,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:03,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1570560406, now seen corresponding path program 1 times [2023-02-15 22:46:03,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:03,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209148591] [2023-02-15 22:46:03,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:03,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:03,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:46:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:03,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:46:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:04,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-02-15 22:46:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:04,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-02-15 22:46:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:04,395 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 22:46:04,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:04,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209148591] [2023-02-15 22:46:04,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209148591] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:04,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422848110] [2023-02-15 22:46:04,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:04,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:04,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:04,397 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 22:46:04,420 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 22:46:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:04,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 31 conjunts are in the unsatisfiable core [2023-02-15 22:46:04,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:04,775 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 22:46:04,775 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 22:46:04,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422848110] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:46:04,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 22:46:04,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [21] total 30 [2023-02-15 22:46:04,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688156430] [2023-02-15 22:46:04,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:46:04,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-15 22:46:04,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:04,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-15 22:46:04,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=777, Unknown=0, NotChecked=0, Total=870 [2023-02-15 22:46:04,777 INFO L87 Difference]: Start difference. First operand 441 states and 536 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 22:46:04,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:04,984 INFO L93 Difference]: Finished difference Result 546 states and 655 transitions. [2023-02-15 22:46:04,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-15 22:46:04,984 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 22:46:04,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:04,986 INFO L225 Difference]: With dead ends: 546 [2023-02-15 22:46:04,986 INFO L226 Difference]: Without dead ends: 544 [2023-02-15 22:46:04,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=118, Invalid=1004, Unknown=0, NotChecked=0, Total=1122 [2023-02-15 22:46:04,987 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 202 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:04,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 767 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:46:04,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2023-02-15 22:46:05,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 460. [2023-02-15 22:46:05,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 435 states have (on average 1.2275862068965517) internal successors, (534), 439 states have internal predecessors, (534), 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 22:46:05,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 557 transitions. [2023-02-15 22:46:05,029 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 557 transitions. Word has length 151 [2023-02-15 22:46:05,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:05,030 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 557 transitions. [2023-02-15 22:46:05,030 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 22:46:05,030 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 557 transitions. [2023-02-15 22:46:05,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-02-15 22:46:05,031 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:05,032 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 22:46:05,043 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-02-15 22:46:05,237 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 22:46:05,238 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:46:05,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:05,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1121068974, now seen corresponding path program 1 times [2023-02-15 22:46:05,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:05,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358065942] [2023-02-15 22:46:05,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:05,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:05,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:46:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:05,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:46:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:05,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-02-15 22:46:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:05,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-02-15 22:46:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:05,345 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 22:46:05,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:05,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358065942] [2023-02-15 22:46:05,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358065942] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:46:05,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:46:05,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:46:05,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124574673] [2023-02-15 22:46:05,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:46:05,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:46:05,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:05,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:46:05,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:46:05,348 INFO L87 Difference]: Start difference. First operand 460 states and 557 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 22:46:05,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:05,408 INFO L93 Difference]: Finished difference Result 787 states and 977 transitions. [2023-02-15 22:46:05,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:46:05,409 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 22:46:05,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:05,411 INFO L225 Difference]: With dead ends: 787 [2023-02-15 22:46:05,411 INFO L226 Difference]: Without dead ends: 504 [2023-02-15 22:46:05,412 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 22:46:05,412 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 4 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 301 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 22:46:05,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 301 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:46:05,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2023-02-15 22:46:05,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 480. [2023-02-15 22:46:05,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 455 states have (on average 1.2175824175824175) internal successors, (554), 459 states have internal predecessors, (554), 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 22:46:05,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 577 transitions. [2023-02-15 22:46:05,456 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 577 transitions. Word has length 151 [2023-02-15 22:46:05,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:05,456 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 577 transitions. [2023-02-15 22:46:05,456 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 22:46:05,456 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 577 transitions. [2023-02-15 22:46:05,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-02-15 22:46:05,458 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:05,458 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 22:46:05,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-02-15 22:46:05,458 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:46:05,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:05,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1367893992, now seen corresponding path program 1 times [2023-02-15 22:46:05,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:05,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292517892] [2023-02-15 22:46:05,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:05,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:05,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:46:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:05,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:46:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:05,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-02-15 22:46:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:05,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-02-15 22:46:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:05,774 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 22:46:05,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:05,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292517892] [2023-02-15 22:46:05,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292517892] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:05,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002116462] [2023-02-15 22:46:05,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:05,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:05,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:05,775 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 22:46:05,778 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 22:46:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:05,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 26 conjunts are in the unsatisfiable core [2023-02-15 22:46:05,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:06,008 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 22:46:06,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:46:06,160 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 22:46:06,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002116462] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:46:06,160 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:46:06,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9] total 24 [2023-02-15 22:46:06,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947002175] [2023-02-15 22:46:06,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:46:06,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 22:46:06,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:06,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 22:46:06,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2023-02-15 22:46:06,162 INFO L87 Difference]: Start difference. First operand 480 states and 577 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 22:46:07,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:07,177 INFO L93 Difference]: Finished difference Result 1616 states and 1898 transitions. [2023-02-15 22:46:07,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-02-15 22:46:07,178 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 22:46:07,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:07,184 INFO L225 Difference]: With dead ends: 1616 [2023-02-15 22:46:07,184 INFO L226 Difference]: Without dead ends: 1558 [2023-02-15 22:46:07,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=455, Invalid=2625, Unknown=0, NotChecked=0, Total=3080 [2023-02-15 22:46:07,189 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 1772 mSDsluCounter, 2708 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1772 SdHoareTripleChecker+Valid, 2945 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:07,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1772 Valid, 2945 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 943 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-15 22:46:07,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2023-02-15 22:46:07,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 516. [2023-02-15 22:46:07,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 489 states have (on average 1.2229038854805725) internal successors, (598), 490 states have internal predecessors, (598), 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 22:46:07,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 627 transitions. [2023-02-15 22:46:07,238 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 627 transitions. Word has length 152 [2023-02-15 22:46:07,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:07,238 INFO L495 AbstractCegarLoop]: Abstraction has 516 states and 627 transitions. [2023-02-15 22:46:07,238 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 22:46:07,238 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 627 transitions. [2023-02-15 22:46:07,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-02-15 22:46:07,240 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:07,240 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 22:46:07,254 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-02-15 22:46:07,449 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 22:46:07,449 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:46:07,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:07,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1367895914, now seen corresponding path program 1 times [2023-02-15 22:46:07,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:07,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967450791] [2023-02-15 22:46:07,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:07,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:07,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:46:07,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:07,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:46:07,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:08,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-02-15 22:46:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:08,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-02-15 22:46:08,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:08,113 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 22:46:08,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:08,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967450791] [2023-02-15 22:46:08,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967450791] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:08,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695149627] [2023-02-15 22:46:08,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:08,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:08,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:08,116 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 22:46:08,119 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 22:46:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:08,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 29 conjunts are in the unsatisfiable core [2023-02-15 22:46:08,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:08,802 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 22:46:08,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:46:09,461 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 22:46:09,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695149627] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:46:09,461 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:46:09,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11, 10] total 40 [2023-02-15 22:46:09,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817918551] [2023-02-15 22:46:09,462 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:46:09,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-02-15 22:46:09,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:09,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-02-15 22:46:09,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1438, Unknown=0, NotChecked=0, Total=1560 [2023-02-15 22:46:09,464 INFO L87 Difference]: Start difference. First operand 516 states and 627 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 22:46:12,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:12,361 INFO L93 Difference]: Finished difference Result 1540 states and 1868 transitions. [2023-02-15 22:46:12,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-02-15 22:46:12,362 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 22:46:12,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:12,365 INFO L225 Difference]: With dead ends: 1540 [2023-02-15 22:46:12,365 INFO L226 Difference]: Without dead ends: 1196 [2023-02-15 22:46:12,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=627, Invalid=4485, Unknown=0, NotChecked=0, Total=5112 [2023-02-15 22:46:12,367 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 1176 mSDsluCounter, 7105 mSDsCounter, 0 mSdLazyCounter, 3104 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1186 SdHoareTripleChecker+Valid, 7453 SdHoareTripleChecker+Invalid, 3175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:12,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1186 Valid, 7453 Invalid, 3175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 3104 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-02-15 22:46:12,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2023-02-15 22:46:12,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 530. [2023-02-15 22:46:12,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 503 states have (on average 1.2266401590457257) internal successors, (617), 503 states have internal predecessors, (617), 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 22:46:12,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 646 transitions. [2023-02-15 22:46:12,413 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 646 transitions. Word has length 152 [2023-02-15 22:46:12,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:12,413 INFO L495 AbstractCegarLoop]: Abstraction has 530 states and 646 transitions. [2023-02-15 22:46:12,413 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 22:46:12,413 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 646 transitions. [2023-02-15 22:46:12,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-02-15 22:46:12,415 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:12,415 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 22:46:12,425 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 22:46:12,621 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 22:46:12,621 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-15 22:46:12,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:12,622 INFO L85 PathProgramCache]: Analyzing trace with hash -66034146, now seen corresponding path program 1 times [2023-02-15 22:46:12,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:12,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956809456] [2023-02-15 22:46:12,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:12,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:12,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:46:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:12,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:46:12,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:13,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-02-15 22:46:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:13,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-02-15 22:46:13,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:13,320 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 22:46:13,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:13,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956809456] [2023-02-15 22:46:13,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956809456] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:13,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666279290] [2023-02-15 22:46:13,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:13,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:13,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:13,325 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 22:46:13,348 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 22:46:13,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:13,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 41 conjunts are in the unsatisfiable core [2023-02-15 22:46:13,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:14,116 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 22:46:14,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:46:15,036 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 22:46:15,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666279290] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:46:15,036 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:46:15,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 61 [2023-02-15 22:46:15,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746869455] [2023-02-15 22:46:15,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:46:15,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2023-02-15 22:46:15,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:15,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2023-02-15 22:46:15,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=814, Invalid=2846, Unknown=0, NotChecked=0, Total=3660 [2023-02-15 22:46:15,039 INFO L87 Difference]: Start difference. First operand 530 states and 646 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 22:46:36,905 WARN L233 SmtUtils]: Spent 18.38s 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 22:46:38,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-15 22:46:46,103 WARN L233 SmtUtils]: Spent 6.02s 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 22:46:56,932 WARN L233 SmtUtils]: Spent 7.37s 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 22:47:03,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-15 22:47:05,052 WARN L539 Checker$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 22:47:17,355 WARN L233 SmtUtils]: Spent 9.45s on a formula simplification. DAG size of input: 76 DAG size of output: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 22:47:20,100 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 22:47:29,738 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 82 DAG size of output: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 22:47:46,054 WARN L233 SmtUtils]: Spent 10.61s on a formula simplification. DAG size of input: 88 DAG size of output: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 22:47:58,677 WARN L233 SmtUtils]: Spent 5.76s on a formula simplification. DAG size of input: 82 DAG size of output: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 22:48:24,706 WARN L233 SmtUtils]: Spent 6.46s on a formula simplification. DAG size of input: 70 DAG size of output: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 22:48:42,931 WARN L233 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 64 DAG size of output: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)