./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/rec_counter1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 574ddb4e 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/termination-numeric/rec_counter1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 23:44:03,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 23:44:03,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 23:44:03,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 23:44:03,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 23:44:03,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 23:44:03,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 23:44:03,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 23:44:03,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 23:44:03,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 23:44:03,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 23:44:03,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 23:44:03,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 23:44:03,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 23:44:03,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 23:44:03,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 23:44:03,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 23:44:03,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 23:44:03,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 23:44:03,201 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 23:44:03,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 23:44:03,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 23:44:03,203 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 23:44:03,204 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 23:44:03,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 23:44:03,210 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 23:44:03,210 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 23:44:03,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 23:44:03,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 23:44:03,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 23:44:03,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 23:44:03,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 23:44:03,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 23:44:03,215 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 23:44:03,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 23:44:03,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 23:44:03,215 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 23:44:03,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 23:44:03,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 23:44:03,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 23:44:03,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 23:44:03,218 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-18 23:44:03,239 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 23:44:03,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 23:44:03,239 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 23:44:03,239 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 23:44:03,240 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 23:44:03,240 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 23:44:03,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 23:44:03,241 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 23:44:03,241 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 23:44:03,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 23:44:03,241 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 23:44:03,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 23:44:03,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 23:44:03,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 23:44:03,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 23:44:03,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 23:44:03,242 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 23:44:03,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 23:44:03,242 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 23:44:03,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 23:44:03,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 23:44:03,243 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 23:44:03,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 23:44:03,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:44:03,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 23:44:03,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 23:44:03,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 23:44:03,244 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 23:44:03,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 23:44:03,244 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 23:44:03,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 23:44:03,244 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 23:44:03,244 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 23:44:03,245 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 23:44:03,245 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b [2023-02-18 23:44:03,386 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 23:44:03,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 23:44:03,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 23:44:03,410 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 23:44:03,410 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 23:44:03,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/rec_counter1.c [2023-02-18 23:44:04,398 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 23:44:04,502 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 23:44:04,503 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/rec_counter1.c [2023-02-18 23:44:04,506 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d138408a4/9b3afdb115284cee8c14990f193c8c9a/FLAG8d4b2dddd [2023-02-18 23:44:04,516 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d138408a4/9b3afdb115284cee8c14990f193c8c9a [2023-02-18 23:44:04,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 23:44:04,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 23:44:04,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 23:44:04,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 23:44:04,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 23:44:04,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:44:04" (1/1) ... [2023-02-18 23:44:04,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5297109e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:04, skipping insertion in model container [2023-02-18 23:44:04,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:44:04" (1/1) ... [2023-02-18 23:44:04,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 23:44:04,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 23:44:04,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:44:04,632 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 23:44:04,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:44:04,648 INFO L208 MainTranslator]: Completed translation [2023-02-18 23:44:04,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:04 WrapperNode [2023-02-18 23:44:04,648 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 23:44:04,649 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 23:44:04,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 23:44:04,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 23:44:04,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:04" (1/1) ... [2023-02-18 23:44:04,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:04" (1/1) ... [2023-02-18 23:44:04,664 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12 [2023-02-18 23:44:04,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 23:44:04,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 23:44:04,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 23:44:04,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 23:44:04,670 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:04" (1/1) ... [2023-02-18 23:44:04,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:04" (1/1) ... [2023-02-18 23:44:04,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:04" (1/1) ... [2023-02-18 23:44:04,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:04" (1/1) ... [2023-02-18 23:44:04,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:04" (1/1) ... [2023-02-18 23:44:04,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:04" (1/1) ... [2023-02-18 23:44:04,674 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:04" (1/1) ... [2023-02-18 23:44:04,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:04" (1/1) ... [2023-02-18 23:44:04,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 23:44:04,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 23:44:04,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 23:44:04,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 23:44:04,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:04" (1/1) ... [2023-02-18 23:44:04,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:44:04,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:04,695 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) [2023-02-18 23:44:04,701 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 [2023-02-18 23:44:04,719 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2023-02-18 23:44:04,719 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2023-02-18 23:44:04,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 23:44:04,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 23:44:04,757 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 23:44:04,759 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 23:44:04,898 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 23:44:04,903 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 23:44:04,903 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 23:44:04,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:44:04 BoogieIcfgContainer [2023-02-18 23:44:04,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 23:44:04,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 23:44:04,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 23:44:04,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 23:44:04,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 11:44:04" (1/3) ... [2023-02-18 23:44:04,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60827baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:44:04, skipping insertion in model container [2023-02-18 23:44:04,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:44:04" (2/3) ... [2023-02-18 23:44:04,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60827baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:44:04, skipping insertion in model container [2023-02-18 23:44:04,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:44:04" (3/3) ... [2023-02-18 23:44:04,910 INFO L112 eAbstractionObserver]: Analyzing ICFG rec_counter1.c [2023-02-18 23:44:04,944 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 23:44:04,944 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-18 23:44:04,990 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 23:44:04,994 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;@692a2962, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 23:44:04,994 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-18 23:44:05,013 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 17 states have (on average 1.588235294117647) internal successors, (27), 23 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 23:44:05,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 23:44:05,018 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:05,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:05,019 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:05,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:05,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1088965814, now seen corresponding path program 1 times [2023-02-18 23:44:05,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:05,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072823674] [2023-02-18 23:44:05,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:05,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:05,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:05,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:05,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:05,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072823674] [2023-02-18 23:44:05,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072823674] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:05,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:44:05,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 23:44:05,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45448151] [2023-02-18 23:44:05,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:05,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 23:44:05,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:05,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 23:44:05,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 23:44:05,272 INFO L87 Difference]: Start difference. First operand has 27 states, 17 states have (on average 1.588235294117647) internal successors, (27), 23 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:05,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:05,331 INFO L93 Difference]: Finished difference Result 65 states and 74 transitions. [2023-02-18 23:44:05,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 23:44:05,333 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-18 23:44:05,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:05,337 INFO L225 Difference]: With dead ends: 65 [2023-02-18 23:44:05,337 INFO L226 Difference]: Without dead ends: 39 [2023-02-18 23:44:05,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-18 23:44:05,341 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 35 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:05,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 98 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:05,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-02-18 23:44:05,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2023-02-18 23:44:05,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 29 states have internal predecessors, (37), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 23:44:05,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2023-02-18 23:44:05,364 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 7 [2023-02-18 23:44:05,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:05,364 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2023-02-18 23:44:05,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:05,364 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2023-02-18 23:44:05,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 23:44:05,364 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:05,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:05,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 23:44:05,365 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:05,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:05,365 INFO L85 PathProgramCache]: Analyzing trace with hash -601798096, now seen corresponding path program 1 times [2023-02-18 23:44:05,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:05,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020135835] [2023-02-18 23:44:05,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:05,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:05,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:05,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:05,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:05,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020135835] [2023-02-18 23:44:05,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020135835] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:05,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:44:05,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 23:44:05,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632807229] [2023-02-18 23:44:05,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:05,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 23:44:05,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:05,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 23:44:05,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 23:44:05,394 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:05,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:05,440 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2023-02-18 23:44:05,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 23:44:05,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-18 23:44:05,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:05,442 INFO L225 Difference]: With dead ends: 34 [2023-02-18 23:44:05,442 INFO L226 Difference]: Without dead ends: 33 [2023-02-18 23:44:05,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-18 23:44:05,443 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 33 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:05,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 33 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:05,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-02-18 23:44:05,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2023-02-18 23:44:05,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 28 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 23:44:05,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2023-02-18 23:44:05,448 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 8 [2023-02-18 23:44:05,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:05,448 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2023-02-18 23:44:05,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:05,449 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2023-02-18 23:44:05,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-18 23:44:05,450 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:05,450 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:05,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 23:44:05,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:05,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:05,452 INFO L85 PathProgramCache]: Analyzing trace with hash -114082075, now seen corresponding path program 1 times [2023-02-18 23:44:05,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:05,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993403306] [2023-02-18 23:44:05,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:05,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:05,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:05,502 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:05,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:05,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993403306] [2023-02-18 23:44:05,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993403306] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:05,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792079994] [2023-02-18 23:44:05,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:05,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:05,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:05,507 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) [2023-02-18 23:44:05,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 23:44:05,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:05,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 23:44:05,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:05,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:05,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:05,624 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:44:05,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792079994] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:05,624 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:05,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-18 23:44:05,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604380552] [2023-02-18 23:44:05,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:05,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 23:44:05,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:05,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 23:44:05,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-02-18 23:44:05,626 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:05,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:05,686 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2023-02-18 23:44:05,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 23:44:05,687 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-18 23:44:05,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:05,688 INFO L225 Difference]: With dead ends: 39 [2023-02-18 23:44:05,688 INFO L226 Difference]: Without dead ends: 38 [2023-02-18 23:44:05,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-02-18 23:44:05,690 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 90 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:05,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 75 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:05,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-18 23:44:05,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2023-02-18 23:44:05,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 27 states have internal predecessors, (34), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 23:44:05,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2023-02-18 23:44:05,696 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 12 [2023-02-18 23:44:05,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:05,696 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2023-02-18 23:44:05,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:44:05,696 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2023-02-18 23:44:05,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-18 23:44:05,697 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:05,697 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:05,705 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-18 23:44:05,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:05,902 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting recErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:05,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:05,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1647452250, now seen corresponding path program 1 times [2023-02-18 23:44:05,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:05,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927044108] [2023-02-18 23:44:05,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:05,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:05,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:44:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:05,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 23:44:05,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:05,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927044108] [2023-02-18 23:44:05,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927044108] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:05,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:44:05,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:44:05,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713305554] [2023-02-18 23:44:05,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:05,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:44:05,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:05,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:44:05,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:44:05,943 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 23:44:05,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:05,948 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2023-02-18 23:44:05,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:44:05,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-02-18 23:44:05,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:05,949 INFO L225 Difference]: With dead ends: 34 [2023-02-18 23:44:05,949 INFO L226 Difference]: Without dead ends: 33 [2023-02-18 23:44:05,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:44:05,950 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 9 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:05,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 34 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:05,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-02-18 23:44:05,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2023-02-18 23:44:05,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.3333333333333333) internal successors, (32), 26 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 23:44:05,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2023-02-18 23:44:05,955 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 16 [2023-02-18 23:44:05,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:05,955 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2023-02-18 23:44:05,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 23:44:05,955 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2023-02-18 23:44:05,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-18 23:44:05,955 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:05,955 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:05,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 23:44:05,956 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:05,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:05,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1647452195, now seen corresponding path program 1 times [2023-02-18 23:44:05,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:05,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284636331] [2023-02-18 23:44:05,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:05,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:05,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:44:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:05,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 23:44:05,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:05,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284636331] [2023-02-18 23:44:05,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284636331] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:05,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:44:05,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:44:05,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642318147] [2023-02-18 23:44:05,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:05,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:44:05,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:05,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:44:05,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:44:05,989 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 23:44:05,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:05,994 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2023-02-18 23:44:05,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:44:05,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-02-18 23:44:05,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:05,994 INFO L225 Difference]: With dead ends: 31 [2023-02-18 23:44:05,995 INFO L226 Difference]: Without dead ends: 30 [2023-02-18 23:44:05,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:44:05,996 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:05,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 35 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:05,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-18 23:44:05,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-02-18 23:44:05,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 23:44:05,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2023-02-18 23:44:05,999 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 16 [2023-02-18 23:44:05,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:06,000 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2023-02-18 23:44:06,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 23:44:06,000 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2023-02-18 23:44:06,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 23:44:06,000 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:06,000 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:06,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-18 23:44:06,001 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:06,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:06,001 INFO L85 PathProgramCache]: Analyzing trace with hash 468587862, now seen corresponding path program 1 times [2023-02-18 23:44:06,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:06,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920483903] [2023-02-18 23:44:06,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:06,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:06,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:44:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:06,023 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 23:44:06,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:06,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920483903] [2023-02-18 23:44:06,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920483903] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:06,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:44:06,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 23:44:06,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918291979] [2023-02-18 23:44:06,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:06,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 23:44:06,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:06,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 23:44:06,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 23:44:06,025 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 23:44:06,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:06,046 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2023-02-18 23:44:06,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 23:44:06,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-02-18 23:44:06,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:06,047 INFO L225 Difference]: With dead ends: 44 [2023-02-18 23:44:06,047 INFO L226 Difference]: Without dead ends: 41 [2023-02-18 23:44:06,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 23:44:06,048 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 9 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:06,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 51 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:06,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-02-18 23:44:06,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 34. [2023-02-18 23:44:06,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.25) internal successors, (35), 29 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-18 23:44:06,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2023-02-18 23:44:06,062 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 17 [2023-02-18 23:44:06,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:06,063 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2023-02-18 23:44:06,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 23:44:06,063 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2023-02-18 23:44:06,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 23:44:06,064 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:06,065 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:06,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-18 23:44:06,065 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:06,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:06,066 INFO L85 PathProgramCache]: Analyzing trace with hash 468589560, now seen corresponding path program 1 times [2023-02-18 23:44:06,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:06,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204401001] [2023-02-18 23:44:06,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:06,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:06,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:06,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:44:06,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:06,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-18 23:44:06,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:06,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204401001] [2023-02-18 23:44:06,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204401001] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:06,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:44:06,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 23:44:06,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313966417] [2023-02-18 23:44:06,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:06,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 23:44:06,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:06,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 23:44:06,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 23:44:06,122 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 23:44:06,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:06,138 INFO L93 Difference]: Finished difference Result 60 states and 73 transitions. [2023-02-18 23:44:06,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 23:44:06,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-02-18 23:44:06,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:06,140 INFO L225 Difference]: With dead ends: 60 [2023-02-18 23:44:06,141 INFO L226 Difference]: Without dead ends: 38 [2023-02-18 23:44:06,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 23:44:06,142 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 5 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:06,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 73 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:06,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-18 23:44:06,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-02-18 23:44:06,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 32 states have internal predecessors, (38), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 23:44:06,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2023-02-18 23:44:06,153 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 17 [2023-02-18 23:44:06,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:06,156 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2023-02-18 23:44:06,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-18 23:44:06,157 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2023-02-18 23:44:06,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-18 23:44:06,157 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:06,157 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:06,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-18 23:44:06,158 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting recErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:06,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:06,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1297249887, now seen corresponding path program 1 times [2023-02-18 23:44:06,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:06,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232769481] [2023-02-18 23:44:06,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:06,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:06,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:44:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:06,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:06,287 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-18 23:44:06,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:06,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232769481] [2023-02-18 23:44:06,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232769481] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:06,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695706990] [2023-02-18 23:44:06,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:06,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:06,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:06,288 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) [2023-02-18 23:44:06,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 23:44:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:06,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 23:44:06,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:06,374 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-18 23:44:06,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 23:44:06,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695706990] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:44:06,374 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 23:44:06,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2023-02-18 23:44:06,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446144855] [2023-02-18 23:44:06,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:44:06,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 23:44:06,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:06,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 23:44:06,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-02-18 23:44:06,378 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-18 23:44:06,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:06,403 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2023-02-18 23:44:06,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 23:44:06,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2023-02-18 23:44:06,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:06,404 INFO L225 Difference]: With dead ends: 38 [2023-02-18 23:44:06,404 INFO L226 Difference]: Without dead ends: 37 [2023-02-18 23:44:06,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2023-02-18 23:44:06,405 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 7 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:06,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 73 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:06,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-02-18 23:44:06,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-02-18 23:44:06,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-18 23:44:06,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2023-02-18 23:44:06,414 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 28 [2023-02-18 23:44:06,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:06,414 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2023-02-18 23:44:06,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-18 23:44:06,414 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2023-02-18 23:44:06,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-18 23:44:06,414 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:06,415 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:06,419 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-18 23:44:06,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-02-18 23:44:06,615 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:06,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:06,616 INFO L85 PathProgramCache]: Analyzing trace with hash 255701234, now seen corresponding path program 1 times [2023-02-18 23:44:06,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:06,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050130169] [2023-02-18 23:44:06,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:06,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:06,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:44:06,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:06,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:06,674 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-18 23:44:06,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:06,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050130169] [2023-02-18 23:44:06,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050130169] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:06,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516112050] [2023-02-18 23:44:06,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:06,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:06,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:06,677 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) [2023-02-18 23:44:06,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 23:44:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:06,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 23:44:06,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:06,720 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-18 23:44:06,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:06,771 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-18 23:44:06,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516112050] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:06,772 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:06,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2023-02-18 23:44:06,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196888829] [2023-02-18 23:44:06,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:06,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-18 23:44:06,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:06,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-18 23:44:06,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-02-18 23:44:06,773 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 15 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-18 23:44:06,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:06,842 INFO L93 Difference]: Finished difference Result 82 states and 97 transitions. [2023-02-18 23:44:06,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-18 23:44:06,842 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) Word has length 31 [2023-02-18 23:44:06,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:06,845 INFO L225 Difference]: With dead ends: 82 [2023-02-18 23:44:06,845 INFO L226 Difference]: Without dead ends: 65 [2023-02-18 23:44:06,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2023-02-18 23:44:06,847 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 30 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:06,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 158 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:44:06,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-02-18 23:44:06,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 55. [2023-02-18 23:44:06,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 47 states have (on average 1.1914893617021276) internal successors, (56), 47 states have internal predecessors, (56), 3 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-18 23:44:06,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 64 transitions. [2023-02-18 23:44:06,860 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 64 transitions. Word has length 31 [2023-02-18 23:44:06,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:06,861 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 64 transitions. [2023-02-18 23:44:06,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 12 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-18 23:44:06,861 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2023-02-18 23:44:06,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-02-18 23:44:06,862 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:06,862 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:06,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:07,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:07,063 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:07,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:07,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1077552402, now seen corresponding path program 2 times [2023-02-18 23:44:07,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:07,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899233999] [2023-02-18 23:44:07,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:07,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:07,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:07,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-18 23:44:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:07,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:07,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:07,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:07,324 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 34 proven. 19 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-02-18 23:44:07,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:07,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899233999] [2023-02-18 23:44:07,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899233999] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:07,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534761359] [2023-02-18 23:44:07,328 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:44:07,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:07,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:07,331 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) [2023-02-18 23:44:07,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-18 23:44:07,372 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:44:07,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:44:07,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-18 23:44:07,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:07,405 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 43 proven. 8 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-02-18 23:44:07,405 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:07,451 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 44 proven. 7 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-02-18 23:44:07,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534761359] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:07,451 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:07,452 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9] total 15 [2023-02-18 23:44:07,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828602956] [2023-02-18 23:44:07,452 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:07,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-18 23:44:07,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:07,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-18 23:44:07,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-02-18 23:44:07,453 INFO L87 Difference]: Start difference. First operand 55 states and 64 transitions. Second operand has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-18 23:44:07,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:07,559 INFO L93 Difference]: Finished difference Result 103 states and 123 transitions. [2023-02-18 23:44:07,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-18 23:44:07,559 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 69 [2023-02-18 23:44:07,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:07,561 INFO L225 Difference]: With dead ends: 103 [2023-02-18 23:44:07,561 INFO L226 Difference]: Without dead ends: 66 [2023-02-18 23:44:07,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 135 SyntacticMatches, 12 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2023-02-18 23:44:07,562 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 20 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:07,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 191 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:44:07,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-02-18 23:44:07,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2023-02-18 23:44:07,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 56 states have (on average 1.1071428571428572) internal successors, (62), 56 states have internal predecessors, (62), 3 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-18 23:44:07,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2023-02-18 23:44:07,578 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 69 [2023-02-18 23:44:07,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:07,579 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2023-02-18 23:44:07,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 12 states have internal predecessors, (46), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-18 23:44:07,579 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2023-02-18 23:44:07,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-02-18 23:44:07,582 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:07,582 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:07,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:07,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:07,783 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:07,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:07,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1613309538, now seen corresponding path program 3 times [2023-02-18 23:44:07,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:07,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906193389] [2023-02-18 23:44:07,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:07,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:07,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:07,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-18 23:44:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:07,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:07,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:07,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:07,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:07,974 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2023-02-18 23:44:07,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:07,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906193389] [2023-02-18 23:44:07,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906193389] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:07,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681829891] [2023-02-18 23:44:07,975 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:44:07,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:07,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:07,977 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) [2023-02-18 23:44:07,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-18 23:44:08,010 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-02-18 23:44:08,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:44:08,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 23:44:08,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:08,065 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 36 proven. 5 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-02-18 23:44:08,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:08,141 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 36 proven. 5 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2023-02-18 23:44:08,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681829891] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:08,142 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:08,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 24 [2023-02-18 23:44:08,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249884752] [2023-02-18 23:44:08,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:08,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-02-18 23:44:08,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:08,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-02-18 23:44:08,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=485, Unknown=0, NotChecked=0, Total=600 [2023-02-18 23:44:08,145 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand has 25 states, 24 states have (on average 2.7083333333333335) internal successors, (65), 21 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-18 23:44:08,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:08,314 INFO L93 Difference]: Finished difference Result 121 states and 141 transitions. [2023-02-18 23:44:08,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-02-18 23:44:08,314 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.7083333333333335) internal successors, (65), 21 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 75 [2023-02-18 23:44:08,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:08,316 INFO L225 Difference]: With dead ends: 121 [2023-02-18 23:44:08,316 INFO L226 Difference]: Without dead ends: 103 [2023-02-18 23:44:08,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 145 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 580 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=511, Invalid=1559, Unknown=0, NotChecked=0, Total=2070 [2023-02-18 23:44:08,319 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 60 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:08,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 172 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:44:08,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2023-02-18 23:44:08,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 97. [2023-02-18 23:44:08,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 88 states have (on average 1.125) internal successors, (99), 88 states have internal predecessors, (99), 3 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (6), 6 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-18 23:44:08,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 108 transitions. [2023-02-18 23:44:08,329 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 108 transitions. Word has length 75 [2023-02-18 23:44:08,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:08,329 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 108 transitions. [2023-02-18 23:44:08,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.7083333333333335) internal successors, (65), 21 states have internal predecessors, (65), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-18 23:44:08,330 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 108 transitions. [2023-02-18 23:44:08,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-02-18 23:44:08,332 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:08,332 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 8, 7, 7, 7, 7, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:08,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:08,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-02-18 23:44:08,537 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:08,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:08,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1842269305, now seen corresponding path program 4 times [2023-02-18 23:44:08,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:08,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352060574] [2023-02-18 23:44:08,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:08,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:08,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-18 23:44:08,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:08,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:08,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:08,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:08,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:08,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:08,802 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-02-18 23:44:08,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:08,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352060574] [2023-02-18 23:44:08,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352060574] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:08,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986865202] [2023-02-18 23:44:08,802 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:44:08,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:08,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:08,804 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) [2023-02-18 23:44:08,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-18 23:44:08,852 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:44:08,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:44:08,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 23:44:08,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:08,935 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 132 proven. 68 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-02-18 23:44:08,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:09,091 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 132 proven. 68 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-02-18 23:44:09,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986865202] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:09,091 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:09,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 12] total 34 [2023-02-18 23:44:09,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487218138] [2023-02-18 23:44:09,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:09,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-02-18 23:44:09,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:09,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-02-18 23:44:09,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=987, Unknown=0, NotChecked=0, Total=1190 [2023-02-18 23:44:09,093 INFO L87 Difference]: Start difference. First operand 97 states and 108 transitions. Second operand has 35 states, 34 states have (on average 2.5294117647058822) internal successors, (86), 29 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2023-02-18 23:44:09,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:09,531 INFO L93 Difference]: Finished difference Result 212 states and 246 transitions. [2023-02-18 23:44:09,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-02-18 23:44:09,531 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.5294117647058822) internal successors, (86), 29 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) Word has length 104 [2023-02-18 23:44:09,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:09,533 INFO L225 Difference]: With dead ends: 212 [2023-02-18 23:44:09,533 INFO L226 Difference]: Without dead ends: 165 [2023-02-18 23:44:09,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 197 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2439 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1620, Invalid=5186, Unknown=0, NotChecked=0, Total=6806 [2023-02-18 23:44:09,536 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 132 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:09,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 179 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:44:09,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-02-18 23:44:09,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 154. [2023-02-18 23:44:09,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 143 states have (on average 1.1538461538461537) internal successors, (165), 143 states have internal predecessors, (165), 3 states have call successors, (3), 2 states have call predecessors, (3), 7 states have return successors, (8), 8 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-18 23:44:09,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 176 transitions. [2023-02-18 23:44:09,542 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 176 transitions. Word has length 104 [2023-02-18 23:44:09,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:09,542 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 176 transitions. [2023-02-18 23:44:09,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.5294117647058822) internal successors, (86), 29 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 7 states have return successors, (7), 7 states have call predecessors, (7), 1 states have call successors, (7) [2023-02-18 23:44:09,543 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 176 transitions. [2023-02-18 23:44:09,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-02-18 23:44:09,544 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:09,544 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 10, 9, 9, 9, 9, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:09,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:09,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:09,749 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:09,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:09,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1788602346, now seen corresponding path program 5 times [2023-02-18 23:44:09,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:09,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050367818] [2023-02-18 23:44:09,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:09,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:09,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:09,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-18 23:44:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:10,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:10,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:10,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:10,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:10,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:10,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:10,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:10,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 553 proven. 410 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-02-18 23:44:10,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:10,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050367818] [2023-02-18 23:44:10,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050367818] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:10,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593512975] [2023-02-18 23:44:10,429 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 23:44:10,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:10,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:10,430 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) [2023-02-18 23:44:10,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-18 23:44:10,490 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2023-02-18 23:44:10,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:44:10,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 27 conjunts are in the unsatisfiable core [2023-02-18 23:44:10,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:10,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 806 proven. 105 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-02-18 23:44:10,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:11,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1320 backedges. 806 proven. 105 refuted. 0 times theorem prover too weak. 409 trivial. 0 not checked. [2023-02-18 23:44:11,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593512975] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:11,099 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:11,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 27, 27] total 55 [2023-02-18 23:44:11,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314632263] [2023-02-18 23:44:11,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:11,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-02-18 23:44:11,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:11,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-02-18 23:44:11,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=2639, Unknown=0, NotChecked=0, Total=2970 [2023-02-18 23:44:11,102 INFO L87 Difference]: Start difference. First operand 154 states and 176 transitions. Second operand has 55 states, 55 states have (on average 2.1818181818181817) internal successors, (120), 48 states have internal predecessors, (120), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2023-02-18 23:44:11,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:11,739 INFO L93 Difference]: Finished difference Result 329 states and 381 transitions. [2023-02-18 23:44:11,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-02-18 23:44:11,740 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 2.1818181818181817) internal successors, (120), 48 states have internal predecessors, (120), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) Word has length 165 [2023-02-18 23:44:11,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:11,741 INFO L225 Difference]: With dead ends: 329 [2023-02-18 23:44:11,741 INFO L226 Difference]: Without dead ends: 199 [2023-02-18 23:44:11,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 302 SyntacticMatches, 18 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4349 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=2253, Invalid=10629, Unknown=0, NotChecked=0, Total=12882 [2023-02-18 23:44:11,746 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 476 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:11,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 286 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:44:11,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-02-18 23:44:11,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2023-02-18 23:44:11,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 186 states have (on average 1.1344086021505377) internal successors, (211), 186 states have internal predecessors, (211), 3 states have call successors, (3), 2 states have call predecessors, (3), 9 states have return successors, (10), 10 states have call predecessors, (10), 2 states have call successors, (10) [2023-02-18 23:44:11,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 224 transitions. [2023-02-18 23:44:11,752 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 224 transitions. Word has length 165 [2023-02-18 23:44:11,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:11,752 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 224 transitions. [2023-02-18 23:44:11,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 2.1818181818181817) internal successors, (120), 48 states have internal predecessors, (120), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2023-02-18 23:44:11,753 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 224 transitions. [2023-02-18 23:44:11,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-02-18 23:44:11,754 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:11,754 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:11,759 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-02-18 23:44:11,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:11,961 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:11,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:11,962 INFO L85 PathProgramCache]: Analyzing trace with hash 167579417, now seen corresponding path program 6 times [2023-02-18 23:44:11,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:11,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478878145] [2023-02-18 23:44:11,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:11,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:12,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:44:12,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:12,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:12,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:12,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:12,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:12,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:12,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:12,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:12,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:12,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:12,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:12,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2514 backedges. 0 proven. 2050 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2023-02-18 23:44:12,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:12,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478878145] [2023-02-18 23:44:12,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478878145] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:12,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340446713] [2023-02-18 23:44:12,925 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 23:44:12,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:12,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:12,926 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) [2023-02-18 23:44:12,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-18 23:44:13,012 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2023-02-18 23:44:13,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:44:13,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-18 23:44:13,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:13,246 INFO L134 CoverageAnalysis]: Checked inductivity of 2514 backedges. 696 proven. 70 refuted. 0 times theorem prover too weak. 1748 trivial. 0 not checked. [2023-02-18 23:44:13,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:13,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2514 backedges. 696 proven. 70 refuted. 0 times theorem prover too weak. 1748 trivial. 0 not checked. [2023-02-18 23:44:13,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340446713] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:13,578 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:13,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 17, 17] total 59 [2023-02-18 23:44:13,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006029832] [2023-02-18 23:44:13,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:13,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2023-02-18 23:44:13,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:13,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2023-02-18 23:44:13,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=2945, Unknown=0, NotChecked=0, Total=3540 [2023-02-18 23:44:13,581 INFO L87 Difference]: Start difference. First operand 199 states and 224 transitions. Second operand has 60 states, 59 states have (on average 2.288135593220339) internal successors, (135), 51 states have internal predecessors, (135), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2023-02-18 23:44:14,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:14,778 INFO L93 Difference]: Finished difference Result 316 states and 370 transitions. [2023-02-18 23:44:14,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-02-18 23:44:14,778 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 59 states have (on average 2.288135593220339) internal successors, (135), 51 states have internal predecessors, (135), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) Word has length 210 [2023-02-18 23:44:14,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:14,780 INFO L225 Difference]: With dead ends: 316 [2023-02-18 23:44:14,780 INFO L226 Difference]: Without dead ends: 283 [2023-02-18 23:44:14,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 405 SyntacticMatches, 1 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9780 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=6371, Invalid=19389, Unknown=0, NotChecked=0, Total=25760 [2023-02-18 23:44:14,785 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 417 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:14,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 197 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 23:44:14,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-02-18 23:44:14,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 277. [2023-02-18 23:44:14,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 263 states have (on average 1.1520912547528517) internal successors, (303), 263 states have internal predecessors, (303), 3 states have call successors, (3), 2 states have call predecessors, (3), 10 states have return successors, (11), 11 states have call predecessors, (11), 2 states have call successors, (11) [2023-02-18 23:44:14,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 317 transitions. [2023-02-18 23:44:14,793 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 317 transitions. Word has length 210 [2023-02-18 23:44:14,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:14,794 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 317 transitions. [2023-02-18 23:44:14,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 59 states have (on average 2.288135593220339) internal successors, (135), 51 states have internal predecessors, (135), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2023-02-18 23:44:14,794 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 317 transitions. [2023-02-18 23:44:14,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2023-02-18 23:44:14,796 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:14,796 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:14,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-02-18 23:44:15,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-02-18 23:44:15,001 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:15,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:15,002 INFO L85 PathProgramCache]: Analyzing trace with hash -2102321518, now seen corresponding path program 7 times [2023-02-18 23:44:15,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:15,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721374678] [2023-02-18 23:44:15,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:15,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:15,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:44:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:15,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:15,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:15,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:15,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:15,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:15,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:16,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:16,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:16,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:16,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:16,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:16,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:16,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:16,226 INFO L134 CoverageAnalysis]: Checked inductivity of 4850 backedges. 0 proven. 3987 refuted. 0 times theorem prover too weak. 863 trivial. 0 not checked. [2023-02-18 23:44:16,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:16,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721374678] [2023-02-18 23:44:16,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721374678] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:16,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32838724] [2023-02-18 23:44:16,227 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 23:44:16,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:16,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:16,228 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) [2023-02-18 23:44:16,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-18 23:44:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:16,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 30 conjunts are in the unsatisfiable core [2023-02-18 23:44:16,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:16,422 INFO L134 CoverageAnalysis]: Checked inductivity of 4850 backedges. 27 proven. 3960 refuted. 0 times theorem prover too weak. 863 trivial. 0 not checked. [2023-02-18 23:44:16,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:17,011 INFO L134 CoverageAnalysis]: Checked inductivity of 4850 backedges. 27 proven. 3960 refuted. 0 times theorem prover too weak. 863 trivial. 0 not checked. [2023-02-18 23:44:17,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32838724] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:17,012 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:17,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30, 30] total 62 [2023-02-18 23:44:17,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883803500] [2023-02-18 23:44:17,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:17,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2023-02-18 23:44:17,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:17,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2023-02-18 23:44:17,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=688, Invalid=3218, Unknown=0, NotChecked=0, Total=3906 [2023-02-18 23:44:17,018 INFO L87 Difference]: Start difference. First operand 277 states and 317 transitions. Second operand has 63 states, 62 states have (on average 2.693548387096774) internal successors, (167), 44 states have internal predecessors, (167), 1 states have call successors, (2), 1 states have call predecessors, (2), 20 states have return successors, (20), 20 states have call predecessors, (20), 1 states have call successors, (20) [2023-02-18 23:44:17,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:17,446 INFO L93 Difference]: Finished difference Result 3082 states and 3580 transitions. [2023-02-18 23:44:17,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2023-02-18 23:44:17,446 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 2.693548387096774) internal successors, (167), 44 states have internal predecessors, (167), 1 states have call successors, (2), 1 states have call predecessors, (2), 20 states have return successors, (20), 20 states have call predecessors, (20), 1 states have call successors, (20) Word has length 269 [2023-02-18 23:44:17,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:17,454 INFO L225 Difference]: With dead ends: 3082 [2023-02-18 23:44:17,454 INFO L226 Difference]: Without dead ends: 2591 [2023-02-18 23:44:17,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 535 SyntacticMatches, 9 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5294 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=2167, Invalid=9605, Unknown=0, NotChecked=0, Total=11772 [2023-02-18 23:44:17,458 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 158 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:17,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 231 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:44:17,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2023-02-18 23:44:17,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 1297. [2023-02-18 23:44:17,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1297 states, 1233 states have (on average 1.154095701540957) internal successors, (1423), 1233 states have internal predecessors, (1423), 3 states have call successors, (3), 2 states have call predecessors, (3), 60 states have return successors, (61), 61 states have call predecessors, (61), 2 states have call successors, (61) [2023-02-18 23:44:17,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1297 states to 1297 states and 1487 transitions. [2023-02-18 23:44:17,507 INFO L78 Accepts]: Start accepts. Automaton has 1297 states and 1487 transitions. Word has length 269 [2023-02-18 23:44:17,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:17,507 INFO L495 AbstractCegarLoop]: Abstraction has 1297 states and 1487 transitions. [2023-02-18 23:44:17,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 2.693548387096774) internal successors, (167), 44 states have internal predecessors, (167), 1 states have call successors, (2), 1 states have call predecessors, (2), 20 states have return successors, (20), 20 states have call predecessors, (20), 1 states have call successors, (20) [2023-02-18 23:44:17,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1297 states and 1487 transitions. [2023-02-18 23:44:17,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2023-02-18 23:44:17,514 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:17,514 INFO L195 NwaCegarLoop]: trace histogram [71, 71, 71, 23, 22, 22, 22, 22, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:17,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:17,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-18 23:44:17,719 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:17,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:17,720 INFO L85 PathProgramCache]: Analyzing trace with hash -57524158, now seen corresponding path program 8 times [2023-02-18 23:44:17,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:17,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20776264] [2023-02-18 23:44:17,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:17,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:17,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-18 23:44:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:18,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:18,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:18,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:18,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:18,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:18,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:18,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:18,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:18,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:18,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:19,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:19,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:19,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:19,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:19,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:19,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:19,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:19,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:19,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:19,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:19,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:19,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:19,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:19,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:19,154 INFO L134 CoverageAnalysis]: Checked inductivity of 11214 backedges. 5044 proven. 26 refuted. 0 times theorem prover too weak. 6144 trivial. 0 not checked. [2023-02-18 23:44:19,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:19,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20776264] [2023-02-18 23:44:19,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20776264] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:19,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469109916] [2023-02-18 23:44:19,155 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:44:19,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:19,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:19,156 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) [2023-02-18 23:44:19,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-18 23:44:19,346 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:44:19,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:44:19,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 989 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-18 23:44:19,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:19,437 INFO L134 CoverageAnalysis]: Checked inductivity of 11214 backedges. 1728 proven. 36 refuted. 0 times theorem prover too weak. 9450 trivial. 0 not checked. [2023-02-18 23:44:19,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:19,898 INFO L134 CoverageAnalysis]: Checked inductivity of 11214 backedges. 1732 proven. 32 refuted. 0 times theorem prover too weak. 9450 trivial. 0 not checked. [2023-02-18 23:44:19,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469109916] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:19,898 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:19,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14, 14] total 17 [2023-02-18 23:44:19,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739904261] [2023-02-18 23:44:19,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:19,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-18 23:44:19,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:19,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-18 23:44:19,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-02-18 23:44:19,901 INFO L87 Difference]: Start difference. First operand 1297 states and 1487 transitions. Second operand has 17 states, 17 states have (on average 3.235294117647059) internal successors, (55), 15 states have internal predecessors, (55), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-18 23:44:20,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:20,066 INFO L93 Difference]: Finished difference Result 2303 states and 2657 transitions. [2023-02-18 23:44:20,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-18 23:44:20,066 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.235294117647059) internal successors, (55), 15 states have internal predecessors, (55), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) Word has length 449 [2023-02-18 23:44:20,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:20,070 INFO L225 Difference]: With dead ends: 2303 [2023-02-18 23:44:20,070 INFO L226 Difference]: Without dead ends: 1147 [2023-02-18 23:44:20,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 970 GetRequests, 923 SyntacticMatches, 19 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=185, Invalid=685, Unknown=0, NotChecked=0, Total=870 [2023-02-18 23:44:20,073 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 25 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:20,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 202 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:44:20,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2023-02-18 23:44:20,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1147. [2023-02-18 23:44:20,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 1093 states have (on average 1.121683440073193) internal successors, (1226), 1093 states have internal predecessors, (1226), 3 states have call successors, (3), 2 states have call predecessors, (3), 50 states have return successors, (51), 51 states have call predecessors, (51), 2 states have call successors, (51) [2023-02-18 23:44:20,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1280 transitions. [2023-02-18 23:44:20,106 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1280 transitions. Word has length 449 [2023-02-18 23:44:20,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:20,107 INFO L495 AbstractCegarLoop]: Abstraction has 1147 states and 1280 transitions. [2023-02-18 23:44:20,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.235294117647059) internal successors, (55), 15 states have internal predecessors, (55), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-18 23:44:20,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1280 transitions. [2023-02-18 23:44:20,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2023-02-18 23:44:20,114 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:20,114 INFO L195 NwaCegarLoop]: trace histogram [81, 81, 81, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:20,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:20,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-18 23:44:20,320 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:20,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:20,321 INFO L85 PathProgramCache]: Analyzing trace with hash 582393234, now seen corresponding path program 9 times [2023-02-18 23:44:20,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:20,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222558230] [2023-02-18 23:44:20,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:20,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:20,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:44:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:20,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:21,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:21,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:21,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:21,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:21,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:21,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:21,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:21,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:22,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:22,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:22,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:22,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:22,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:22,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:22,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:22,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:22,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:22,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:22,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:22,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:22,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:22,123 INFO L134 CoverageAnalysis]: Checked inductivity of 13470 backedges. 6988 proven. 53 refuted. 0 times theorem prover too weak. 6429 trivial. 0 not checked. [2023-02-18 23:44:22,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:22,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222558230] [2023-02-18 23:44:22,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222558230] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:22,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571286215] [2023-02-18 23:44:22,124 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:44:22,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:22,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:22,125 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) [2023-02-18 23:44:22,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-18 23:44:22,469 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2023-02-18 23:44:22,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:44:22,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-18 23:44:22,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:22,721 INFO L134 CoverageAnalysis]: Checked inductivity of 13470 backedges. 4697 proven. 478 refuted. 0 times theorem prover too weak. 8295 trivial. 0 not checked. [2023-02-18 23:44:22,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:23,211 INFO L134 CoverageAnalysis]: Checked inductivity of 13470 backedges. 4697 proven. 478 refuted. 0 times theorem prover too weak. 8295 trivial. 0 not checked. [2023-02-18 23:44:23,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571286215] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:23,212 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:23,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 22, 22] total 59 [2023-02-18 23:44:23,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297661044] [2023-02-18 23:44:23,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:23,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-02-18 23:44:23,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:23,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-02-18 23:44:23,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=476, Invalid=2946, Unknown=0, NotChecked=0, Total=3422 [2023-02-18 23:44:23,215 INFO L87 Difference]: Start difference. First operand 1147 states and 1280 transitions. Second operand has 59 states, 59 states have (on average 2.0677966101694913) internal successors, (122), 56 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-18 23:44:25,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:25,584 INFO L93 Difference]: Finished difference Result 3649 states and 4284 transitions. [2023-02-18 23:44:25,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2023-02-18 23:44:25,585 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 2.0677966101694913) internal successors, (122), 56 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 469 [2023-02-18 23:44:25,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:25,609 INFO L225 Difference]: With dead ends: 3649 [2023-02-18 23:44:25,609 INFO L226 Difference]: Without dead ends: 2537 [2023-02-18 23:44:25,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1120 GetRequests, 943 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9681 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=5995, Invalid=25867, Unknown=0, NotChecked=0, Total=31862 [2023-02-18 23:44:25,615 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 584 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:25,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 465 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 23:44:25,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2537 states. [2023-02-18 23:44:25,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2537 to 1012. [2023-02-18 23:44:25,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 968 states have (on average 1.103305785123967) internal successors, (1068), 968 states have internal predecessors, (1068), 3 states have call successors, (3), 2 states have call predecessors, (3), 40 states have return successors, (41), 41 states have call predecessors, (41), 2 states have call successors, (41) [2023-02-18 23:44:25,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1112 transitions. [2023-02-18 23:44:25,669 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1112 transitions. Word has length 469 [2023-02-18 23:44:25,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:25,669 INFO L495 AbstractCegarLoop]: Abstraction has 1012 states and 1112 transitions. [2023-02-18 23:44:25,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 2.0677966101694913) internal successors, (122), 56 states have internal predecessors, (122), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-18 23:44:25,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1112 transitions. [2023-02-18 23:44:25,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2023-02-18 23:44:25,677 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:25,677 INFO L195 NwaCegarLoop]: trace histogram [104, 104, 104, 23, 22, 22, 22, 22, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:25,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:25,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-02-18 23:44:25,882 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:25,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:25,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1114671363, now seen corresponding path program 10 times [2023-02-18 23:44:25,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:25,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216513864] [2023-02-18 23:44:25,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:25,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:26,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-18 23:44:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:26,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:26,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:27,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:27,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:27,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:27,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:27,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:27,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:27,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:27,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:27,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:27,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:27,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:27,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:27,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:27,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:27,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:27,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:27,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:27,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:27,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:27,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:27,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:27,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:27,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:27,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:27,830 INFO L134 CoverageAnalysis]: Checked inductivity of 20487 backedges. 10930 proven. 89 refuted. 0 times theorem prover too weak. 9468 trivial. 0 not checked. [2023-02-18 23:44:27,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:27,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216513864] [2023-02-18 23:44:27,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216513864] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:27,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362361901] [2023-02-18 23:44:27,830 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:44:27,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:27,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:27,831 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) [2023-02-18 23:44:27,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-18 23:44:28,213 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:44:28,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:44:28,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 21 conjunts are in the unsatisfiable core [2023-02-18 23:44:28,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:28,305 INFO L134 CoverageAnalysis]: Checked inductivity of 20487 backedges. 10147 proven. 89 refuted. 0 times theorem prover too weak. 10251 trivial. 0 not checked. [2023-02-18 23:44:28,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:28,697 INFO L134 CoverageAnalysis]: Checked inductivity of 20487 backedges. 10157 proven. 79 refuted. 0 times theorem prover too weak. 10251 trivial. 0 not checked. [2023-02-18 23:44:28,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362361901] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:28,697 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:28,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 28 [2023-02-18 23:44:28,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579147733] [2023-02-18 23:44:28,698 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:28,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-02-18 23:44:28,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:28,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-02-18 23:44:28,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=646, Unknown=0, NotChecked=0, Total=756 [2023-02-18 23:44:28,699 INFO L87 Difference]: Start difference. First operand 1012 states and 1112 transitions. Second operand has 28 states, 28 states have (on average 2.392857142857143) internal successors, (67), 27 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 23:44:28,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:28,945 INFO L93 Difference]: Finished difference Result 1673 states and 1856 transitions. [2023-02-18 23:44:28,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-02-18 23:44:28,945 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.392857142857143) internal successors, (67), 27 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 548 [2023-02-18 23:44:28,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:28,948 INFO L225 Difference]: With dead ends: 1673 [2023-02-18 23:44:28,948 INFO L226 Difference]: Without dead ends: 802 [2023-02-18 23:44:28,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1179 GetRequests, 1108 SyntacticMatches, 27 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 494 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=440, Invalid=1630, Unknown=0, NotChecked=0, Total=2070 [2023-02-18 23:44:28,950 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 52 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:28,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 230 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:44:28,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2023-02-18 23:44:28,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 802. [2023-02-18 23:44:28,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 802 states, 768 states have (on average 1.0846354166666667) internal successors, (833), 768 states have internal predecessors, (833), 3 states have call successors, (3), 2 states have call predecessors, (3), 30 states have return successors, (31), 31 states have call predecessors, (31), 2 states have call successors, (31) [2023-02-18 23:44:28,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 802 states to 802 states and 867 transitions. [2023-02-18 23:44:28,980 INFO L78 Accepts]: Start accepts. Automaton has 802 states and 867 transitions. Word has length 548 [2023-02-18 23:44:28,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:28,981 INFO L495 AbstractCegarLoop]: Abstraction has 802 states and 867 transitions. [2023-02-18 23:44:28,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.392857142857143) internal successors, (67), 27 states have internal predecessors, (67), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 23:44:28,981 INFO L276 IsEmpty]: Start isEmpty. Operand 802 states and 867 transitions. [2023-02-18 23:44:28,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2023-02-18 23:44:28,984 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:28,985 INFO L195 NwaCegarLoop]: trace histogram [114, 114, 114, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:28,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:29,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-18 23:44:29,193 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:29,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:29,193 INFO L85 PathProgramCache]: Analyzing trace with hash -399128115, now seen corresponding path program 11 times [2023-02-18 23:44:29,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:29,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902342853] [2023-02-18 23:44:29,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:29,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:29,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:44:29,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:30,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:30,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:30,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:30,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:30,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:31,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:31,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:31,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:31,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:31,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:31,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:31,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:31,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:31,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:31,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:31,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:31,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:31,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:31,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:31,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:31,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:31,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:31,285 INFO L134 CoverageAnalysis]: Checked inductivity of 23733 backedges. 13028 proven. 134 refuted. 0 times theorem prover too weak. 10571 trivial. 0 not checked. [2023-02-18 23:44:31,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:31,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902342853] [2023-02-18 23:44:31,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902342853] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:31,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894464113] [2023-02-18 23:44:31,286 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 23:44:31,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:31,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:31,287 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) [2023-02-18 23:44:31,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-18 23:44:31,694 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2023-02-18 23:44:31,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:44:31,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-18 23:44:31,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:31,812 INFO L134 CoverageAnalysis]: Checked inductivity of 23733 backedges. 7520 proven. 134 refuted. 0 times theorem prover too weak. 16079 trivial. 0 not checked. [2023-02-18 23:44:31,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:32,617 INFO L134 CoverageAnalysis]: Checked inductivity of 23733 backedges. 7533 proven. 121 refuted. 0 times theorem prover too weak. 16079 trivial. 0 not checked. [2023-02-18 23:44:32,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894464113] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:32,617 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:32,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 34 [2023-02-18 23:44:32,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038599339] [2023-02-18 23:44:32,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:32,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-02-18 23:44:32,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:32,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-02-18 23:44:32,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=966, Unknown=0, NotChecked=0, Total=1122 [2023-02-18 23:44:32,619 INFO L87 Difference]: Start difference. First operand 802 states and 867 transitions. Second operand has 34 states, 34 states have (on average 2.235294117647059) internal successors, (76), 33 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 23:44:32,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:32,950 INFO L93 Difference]: Finished difference Result 1223 states and 1339 transitions. [2023-02-18 23:44:32,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-02-18 23:44:32,950 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.235294117647059) internal successors, (76), 33 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 568 [2023-02-18 23:44:32,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:32,952 INFO L225 Difference]: With dead ends: 1223 [2023-02-18 23:44:32,952 INFO L226 Difference]: Without dead ends: 562 [2023-02-18 23:44:32,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1226 GetRequests, 1140 SyntacticMatches, 32 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 798 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=632, Invalid=2448, Unknown=0, NotChecked=0, Total=3080 [2023-02-18 23:44:32,954 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 66 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:32,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 328 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 555 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 23:44:32,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2023-02-18 23:44:32,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2023-02-18 23:44:32,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 538 states have (on average 1.0762081784386617) internal successors, (579), 538 states have internal predecessors, (579), 3 states have call successors, (3), 2 states have call predecessors, (3), 20 states have return successors, (21), 21 states have call predecessors, (21), 2 states have call successors, (21) [2023-02-18 23:44:32,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 603 transitions. [2023-02-18 23:44:32,977 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 603 transitions. Word has length 568 [2023-02-18 23:44:32,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:32,978 INFO L495 AbstractCegarLoop]: Abstraction has 562 states and 603 transitions. [2023-02-18 23:44:32,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.235294117647059) internal successors, (76), 33 states have internal predecessors, (76), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 23:44:32,978 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 603 transitions. [2023-02-18 23:44:32,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2023-02-18 23:44:32,981 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:32,981 INFO L195 NwaCegarLoop]: trace histogram [124, 124, 124, 23, 22, 22, 22, 22, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:32,988 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-02-18 23:44:33,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:33,188 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:33,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:33,189 INFO L85 PathProgramCache]: Analyzing trace with hash 880619485, now seen corresponding path program 12 times [2023-02-18 23:44:33,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:33,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852799292] [2023-02-18 23:44:33,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:33,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:33,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-18 23:44:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:34,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:34,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:34,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:34,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:35,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:35,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:35,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:35,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:35,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:35,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:35,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:35,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:35,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:35,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:35,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:35,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:35,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:35,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:35,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:35,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:35,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:35,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:35,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:35,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:35,423 INFO L134 CoverageAnalysis]: Checked inductivity of 27697 backedges. 14700 proven. 188 refuted. 0 times theorem prover too weak. 12809 trivial. 0 not checked. [2023-02-18 23:44:35,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:35,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852799292] [2023-02-18 23:44:35,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852799292] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:35,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112851465] [2023-02-18 23:44:35,423 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 23:44:35,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:35,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:35,425 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) [2023-02-18 23:44:35,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-18 23:44:36,059 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2023-02-18 23:44:36,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:44:36,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-18 23:44:36,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:36,401 INFO L134 CoverageAnalysis]: Checked inductivity of 27697 backedges. 12454 proven. 2784 refuted. 0 times theorem prover too weak. 12459 trivial. 0 not checked. [2023-02-18 23:44:36,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:36,993 INFO L134 CoverageAnalysis]: Checked inductivity of 27697 backedges. 12454 proven. 2784 refuted. 0 times theorem prover too weak. 12459 trivial. 0 not checked. [2023-02-18 23:44:36,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112851465] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:36,993 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:36,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 24, 24] total 75 [2023-02-18 23:44:36,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222778269] [2023-02-18 23:44:36,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:36,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2023-02-18 23:44:36,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:36,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2023-02-18 23:44:36,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=537, Invalid=5013, Unknown=0, NotChecked=0, Total=5550 [2023-02-18 23:44:36,997 INFO L87 Difference]: Start difference. First operand 562 states and 603 transitions. Second operand has 75 states, 75 states have (on average 2.1333333333333333) internal successors, (160), 68 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2023-02-18 23:44:41,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:41,094 INFO L93 Difference]: Finished difference Result 2376 states and 2722 transitions. [2023-02-18 23:44:41,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 201 states. [2023-02-18 23:44:41,095 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 75 states have (on average 2.1333333333333333) internal successors, (160), 68 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) Word has length 608 [2023-02-18 23:44:41,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:41,100 INFO L225 Difference]: With dead ends: 2376 [2023-02-18 23:44:41,100 INFO L226 Difference]: Without dead ends: 1845 [2023-02-18 23:44:41,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1483 GetRequests, 1214 SyntacticMatches, 0 SemanticMatches, 269 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24172 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=8949, Invalid=64221, Unknown=0, NotChecked=0, Total=73170 [2023-02-18 23:44:41,112 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 1321 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 1463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:41,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 557 Invalid, 1463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1416 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-18 23:44:41,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2023-02-18 23:44:41,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 622. [2023-02-18 23:44:41,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 598 states have (on average 1.080267558528428) internal successors, (646), 598 states have internal predecessors, (646), 3 states have call successors, (3), 2 states have call predecessors, (3), 20 states have return successors, (21), 21 states have call predecessors, (21), 2 states have call successors, (21) [2023-02-18 23:44:41,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 670 transitions. [2023-02-18 23:44:41,157 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 670 transitions. Word has length 608 [2023-02-18 23:44:41,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:41,158 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 670 transitions. [2023-02-18 23:44:41,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 2.1333333333333333) internal successors, (160), 68 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2023-02-18 23:44:41,158 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 670 transitions. [2023-02-18 23:44:41,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2023-02-18 23:44:41,162 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:41,162 INFO L195 NwaCegarLoop]: trace histogram [144, 144, 144, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:41,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:41,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:41,371 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:41,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:41,371 INFO L85 PathProgramCache]: Analyzing trace with hash -516638227, now seen corresponding path program 13 times [2023-02-18 23:44:41,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:41,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197654519] [2023-02-18 23:44:41,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:41,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:42,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:44:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:42,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:43,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:43,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:43,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:44,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:44,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:44,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:44,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:44,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:44,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:44,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:44,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:44,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:44,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:44,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:44,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:44,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:44,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:44,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:44,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:44,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:44,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:44,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:44,498 INFO L134 CoverageAnalysis]: Checked inductivity of 35898 backedges. 20250 proven. 251 refuted. 0 times theorem prover too weak. 15397 trivial. 0 not checked. [2023-02-18 23:44:44,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:44,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197654519] [2023-02-18 23:44:44,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197654519] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:44,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381258562] [2023-02-18 23:44:44,499 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 23:44:44,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:44,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:44,500 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) [2023-02-18 23:44:44,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-18 23:44:45,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:45,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 1482 conjuncts, 39 conjunts are in the unsatisfiable core [2023-02-18 23:44:45,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:45,550 INFO L134 CoverageAnalysis]: Checked inductivity of 35898 backedges. 14725 proven. 776 refuted. 0 times theorem prover too weak. 20397 trivial. 0 not checked. [2023-02-18 23:44:45,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:47,354 INFO L134 CoverageAnalysis]: Checked inductivity of 35898 backedges. 14759 proven. 742 refuted. 0 times theorem prover too weak. 20397 trivial. 0 not checked. [2023-02-18 23:44:47,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381258562] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:47,355 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:47,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 39, 39] total 52 [2023-02-18 23:44:47,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995328412] [2023-02-18 23:44:47,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:47,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-02-18 23:44:47,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:47,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-02-18 23:44:47,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=2389, Unknown=0, NotChecked=0, Total=2652 [2023-02-18 23:44:47,357 INFO L87 Difference]: Start difference. First operand 622 states and 670 transitions. Second operand has 52 states, 52 states have (on average 2.4038461538461537) internal successors, (125), 45 states have internal predecessors, (125), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2023-02-18 23:44:48,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:48,992 INFO L93 Difference]: Finished difference Result 1097 states and 1198 transitions. [2023-02-18 23:44:48,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2023-02-18 23:44:48,992 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.4038461538461537) internal successors, (125), 45 states have internal predecessors, (125), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) Word has length 658 [2023-02-18 23:44:48,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:48,995 INFO L225 Difference]: With dead ends: 1097 [2023-02-18 23:44:48,995 INFO L226 Difference]: Without dead ends: 646 [2023-02-18 23:44:48,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1475 GetRequests, 1288 SyntacticMatches, 54 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6191 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2750, Invalid=15340, Unknown=0, NotChecked=0, Total=18090 [2023-02-18 23:44:48,999 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 80 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 2443 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 2450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:48,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 516 Invalid, 2450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2443 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-18 23:44:49,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2023-02-18 23:44:49,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 646. [2023-02-18 23:44:49,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 622 states have (on average 1.0707395498392283) internal successors, (666), 622 states have internal predecessors, (666), 3 states have call successors, (3), 2 states have call predecessors, (3), 20 states have return successors, (21), 21 states have call predecessors, (21), 2 states have call successors, (21) [2023-02-18 23:44:49,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 690 transitions. [2023-02-18 23:44:49,043 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 690 transitions. Word has length 658 [2023-02-18 23:44:49,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:49,043 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 690 transitions. [2023-02-18 23:44:49,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.4038461538461537) internal successors, (125), 45 states have internal predecessors, (125), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2023-02-18 23:44:49,043 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 690 transitions. [2023-02-18 23:44:49,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2023-02-18 23:44:49,047 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:49,047 INFO L195 NwaCegarLoop]: trace histogram [152, 152, 152, 23, 22, 22, 22, 22, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:49,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-02-18 23:44:49,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:49,258 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:49,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:49,258 INFO L85 PathProgramCache]: Analyzing trace with hash 988892365, now seen corresponding path program 14 times [2023-02-18 23:44:49,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:49,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036603389] [2023-02-18 23:44:49,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:49,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:49,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:50,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-18 23:44:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:50,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:51,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:51,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:51,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:52,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:52,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:52,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:52,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:52,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:52,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:52,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:52,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:52,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:52,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:52,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:52,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:52,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:52,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:52,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:52,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:52,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:52,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:52,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:52,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:52,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:52,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:44:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:52,769 INFO L134 CoverageAnalysis]: Checked inductivity of 39807 backedges. 22489 proven. 323 refuted. 0 times theorem prover too weak. 16995 trivial. 0 not checked. [2023-02-18 23:44:52,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:44:52,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036603389] [2023-02-18 23:44:52,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036603389] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:44:52,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114140394] [2023-02-18 23:44:52,769 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:44:52,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:44:52,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:44:52,771 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) [2023-02-18 23:44:52,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-18 23:44:53,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:44:53,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:44:53,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 1556 conjuncts, 44 conjunts are in the unsatisfiable core [2023-02-18 23:44:53,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:44:54,286 INFO L134 CoverageAnalysis]: Checked inductivity of 39807 backedges. 18507 proven. 1107 refuted. 0 times theorem prover too weak. 20193 trivial. 0 not checked. [2023-02-18 23:44:54,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:44:56,488 INFO L134 CoverageAnalysis]: Checked inductivity of 39807 backedges. 18550 proven. 1064 refuted. 0 times theorem prover too weak. 20193 trivial. 0 not checked. [2023-02-18 23:44:56,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114140394] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:44:56,489 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:44:56,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 44, 44] total 59 [2023-02-18 23:44:56,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970892384] [2023-02-18 23:44:56,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:44:56,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2023-02-18 23:44:56,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:44:56,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2023-02-18 23:44:56,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=3094, Unknown=0, NotChecked=0, Total=3422 [2023-02-18 23:44:56,491 INFO L87 Difference]: Start difference. First operand 646 states and 690 transitions. Second operand has 59 states, 59 states have (on average 2.3559322033898304) internal successors, (139), 51 states have internal predecessors, (139), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2023-02-18 23:44:58,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:44:58,585 INFO L93 Difference]: Finished difference Result 1172 states and 1266 transitions. [2023-02-18 23:44:58,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2023-02-18 23:44:58,587 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 59 states have (on average 2.3559322033898304) internal successors, (139), 51 states have internal predecessors, (139), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) Word has length 692 [2023-02-18 23:44:58,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:44:58,589 INFO L225 Difference]: With dead ends: 1172 [2023-02-18 23:44:58,589 INFO L226 Difference]: Without dead ends: 700 [2023-02-18 23:44:58,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1567 GetRequests, 1346 SyntacticMatches, 61 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9029 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=3881, Invalid=22201, Unknown=0, NotChecked=0, Total=26082 [2023-02-18 23:44:58,594 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 92 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 2593 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 2602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-18 23:44:58,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 516 Invalid, 2602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2593 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-18 23:44:58,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2023-02-18 23:44:58,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 678. [2023-02-18 23:44:58,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 653 states have (on average 1.0627871362940275) internal successors, (694), 653 states have internal predecessors, (694), 3 states have call successors, (3), 2 states have call predecessors, (3), 21 states have return successors, (22), 22 states have call predecessors, (22), 2 states have call successors, (22) [2023-02-18 23:44:58,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 719 transitions. [2023-02-18 23:44:58,642 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 719 transitions. Word has length 692 [2023-02-18 23:44:58,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:44:58,642 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 719 transitions. [2023-02-18 23:44:58,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 59 states have (on average 2.3559322033898304) internal successors, (139), 51 states have internal predecessors, (139), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2023-02-18 23:44:58,642 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 719 transitions. [2023-02-18 23:44:58,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 714 [2023-02-18 23:44:58,646 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:44:58,647 INFO L195 NwaCegarLoop]: trace histogram [159, 159, 159, 23, 22, 22, 22, 22, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-18 23:44:58,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-18 23:44:58,859 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,SelfDestructingSolverStorable21 [2023-02-18 23:44:58,859 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:44:58,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:44:58,860 INFO L85 PathProgramCache]: Analyzing trace with hash -875973678, now seen corresponding path program 15 times [2023-02-18 23:44:58,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:44:58,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383464378] [2023-02-18 23:44:58,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:44:58,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:44:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:44:59,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-18 23:44:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:00,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:00,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:01,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:01,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:02,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:02,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:02,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:02,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:02,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:02,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:02,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:02,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:02,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:02,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:02,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:02,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:02,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:02,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:02,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:02,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:02,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:02,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:02,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:02,896 INFO L134 CoverageAnalysis]: Checked inductivity of 43202 backedges. 24563 proven. 404 refuted. 0 times theorem prover too weak. 18235 trivial. 0 not checked. [2023-02-18 23:45:02,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:45:02,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383464378] [2023-02-18 23:45:02,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383464378] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:45:02,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777606326] [2023-02-18 23:45:02,896 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:45:02,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:02,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:45:02,897 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) [2023-02-18 23:45:02,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-18 23:45:04,294 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-02-18 23:45:04,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:45:04,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 33 conjunts are in the unsatisfiable core [2023-02-18 23:45:04,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:45:04,999 INFO L134 CoverageAnalysis]: Checked inductivity of 43202 backedges. 20532 proven. 6087 refuted. 0 times theorem prover too weak. 16583 trivial. 0 not checked. [2023-02-18 23:45:04,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:45:06,137 INFO L134 CoverageAnalysis]: Checked inductivity of 43202 backedges. 20532 proven. 6087 refuted. 0 times theorem prover too weak. 16583 trivial. 0 not checked. [2023-02-18 23:45:06,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777606326] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:45:06,137 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:45:06,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 33, 33] total 105 [2023-02-18 23:45:06,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878270349] [2023-02-18 23:45:06,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:45:06,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2023-02-18 23:45:06,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:45:06,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2023-02-18 23:45:06,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1010, Invalid=9910, Unknown=0, NotChecked=0, Total=10920 [2023-02-18 23:45:06,141 INFO L87 Difference]: Start difference. First operand 678 states and 719 transitions. Second operand has 105 states, 105 states have (on average 2.019047619047619) internal successors, (212), 96 states have internal predecessors, (212), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2023-02-18 23:45:15,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:45:15,564 INFO L93 Difference]: Finished difference Result 3851 states and 4336 transitions. [2023-02-18 23:45:15,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 344 states. [2023-02-18 23:45:15,565 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 105 states have (on average 2.019047619047619) internal successors, (212), 96 states have internal predecessors, (212), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) Word has length 713 [2023-02-18 23:45:15,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:45:15,572 INFO L225 Difference]: With dead ends: 3851 [2023-02-18 23:45:15,572 INFO L226 Difference]: Without dead ends: 3112 [2023-02-18 23:45:15,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1849 GetRequests, 1407 SyntacticMatches, 0 SemanticMatches, 442 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69937 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=21284, Invalid=175408, Unknown=0, NotChecked=0, Total=196692 [2023-02-18 23:45:15,591 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 2210 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 2758 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2210 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 2835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-02-18 23:45:15,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2210 Valid, 779 Invalid, 2835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2758 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-02-18 23:45:15,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3112 states. [2023-02-18 23:45:15,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3112 to 821. [2023-02-18 23:45:15,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 821 states, 794 states have (on average 1.0806045340050379) internal successors, (858), 794 states have internal predecessors, (858), 3 states have call successors, (3), 2 states have call predecessors, (3), 23 states have return successors, (24), 24 states have call predecessors, (24), 2 states have call successors, (24) [2023-02-18 23:45:15,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 885 transitions. [2023-02-18 23:45:15,694 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 885 transitions. Word has length 713 [2023-02-18 23:45:15,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:45:15,694 INFO L495 AbstractCegarLoop]: Abstraction has 821 states and 885 transitions. [2023-02-18 23:45:15,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 2.019047619047619) internal successors, (212), 96 states have internal predecessors, (212), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2023-02-18 23:45:15,695 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 885 transitions. [2023-02-18 23:45:15,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 797 [2023-02-18 23:45:15,700 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:45:15,700 INFO L195 NwaCegarLoop]: trace histogram [190, 190, 190, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-18 23:45:15,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-02-18 23:45:15,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:15,917 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:45:15,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:45:15,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1240873645, now seen corresponding path program 16 times [2023-02-18 23:45:15,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:45:15,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460623352] [2023-02-18 23:45:15,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:45:15,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:45:16,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:17,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:45:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:18,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:19,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:19,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:20,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:20,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:21,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:21,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:21,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:21,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:21,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:21,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:21,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:21,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:21,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:21,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:21,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:21,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:21,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:21,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:21,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:21,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:21,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:21,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:21,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:21,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:21,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:21,496 INFO L134 CoverageAnalysis]: Checked inductivity of 59795 backedges. 34564 proven. 494 refuted. 0 times theorem prover too weak. 24737 trivial. 0 not checked. [2023-02-18 23:45:21,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:45:21,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460623352] [2023-02-18 23:45:21,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460623352] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:45:21,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606505904] [2023-02-18 23:45:21,497 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:45:21,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:21,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:45:21,498 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) [2023-02-18 23:45:21,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-18 23:45:23,006 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:45:23,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:45:23,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 1804 conjuncts, 81 conjunts are in the unsatisfiable core [2023-02-18 23:45:23,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:45:24,070 INFO L134 CoverageAnalysis]: Checked inductivity of 59795 backedges. 32986 proven. 1709 refuted. 0 times theorem prover too weak. 25100 trivial. 0 not checked. [2023-02-18 23:45:24,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:45:27,096 INFO L134 CoverageAnalysis]: Checked inductivity of 59795 backedges. 33041 proven. 1654 refuted. 0 times theorem prover too weak. 25100 trivial. 0 not checked. [2023-02-18 23:45:27,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606505904] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:45:27,096 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:45:27,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 81, 81] total 121 [2023-02-18 23:45:27,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914287969] [2023-02-18 23:45:27,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:45:27,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 121 states [2023-02-18 23:45:27,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:45:27,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2023-02-18 23:45:27,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1649, Invalid=12871, Unknown=0, NotChecked=0, Total=14520 [2023-02-18 23:45:27,099 INFO L87 Difference]: Start difference. First operand 821 states and 885 transitions. Second operand has 121 states, 121 states have (on average 1.7355371900826446) internal successors, (210), 119 states have internal predecessors, (210), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-18 23:45:30,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:45:30,412 INFO L93 Difference]: Finished difference Result 2558 states and 2843 transitions. [2023-02-18 23:45:30,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2023-02-18 23:45:30,413 INFO L78 Accepts]: Start accepts. Automaton has has 121 states, 121 states have (on average 1.7355371900826446) internal successors, (210), 119 states have internal predecessors, (210), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) Word has length 796 [2023-02-18 23:45:30,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:45:30,418 INFO L225 Difference]: With dead ends: 2558 [2023-02-18 23:45:30,418 INFO L226 Difference]: Without dead ends: 1963 [2023-02-18 23:45:30,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1798 GetRequests, 1490 SyntacticMatches, 72 SemanticMatches, 236 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19975 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=9061, Invalid=47345, Unknown=0, NotChecked=0, Total=56406 [2023-02-18 23:45:30,427 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 288 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 2837 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 2852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-02-18 23:45:30,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 754 Invalid, 2852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2837 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-02-18 23:45:30,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1963 states. [2023-02-18 23:45:30,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1963 to 1723. [2023-02-18 23:45:30,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1685 states have (on average 1.058160237388724) internal successors, (1783), 1685 states have internal predecessors, (1783), 3 states have call successors, (3), 2 states have call predecessors, (3), 34 states have return successors, (35), 35 states have call predecessors, (35), 2 states have call successors, (35) [2023-02-18 23:45:30,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 1821 transitions. [2023-02-18 23:45:30,705 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 1821 transitions. Word has length 796 [2023-02-18 23:45:30,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:45:30,706 INFO L495 AbstractCegarLoop]: Abstraction has 1723 states and 1821 transitions. [2023-02-18 23:45:30,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 121 states, 121 states have (on average 1.7355371900826446) internal successors, (210), 119 states have internal predecessors, (210), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-18 23:45:30,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 1821 transitions. [2023-02-18 23:45:30,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2023-02-18 23:45:30,714 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:45:30,714 INFO L195 NwaCegarLoop]: trace histogram [198, 198, 198, 23, 22, 22, 22, 22, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-18 23:45:30,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-02-18 23:45:30,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:30,930 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:45:30,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:45:30,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1723462029, now seen corresponding path program 17 times [2023-02-18 23:45:30,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:45:30,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683994086] [2023-02-18 23:45:30,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:45:30,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:45:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:32,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-18 23:45:32,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:33,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:34,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:34,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:35,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:36,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:36,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:36,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:36,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:36,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:36,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:36,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:36,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:36,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:36,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:36,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:36,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:36,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:36,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:36,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:36,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:36,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:36,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:36,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:36,865 INFO L134 CoverageAnalysis]: Checked inductivity of 64808 backedges. 37612 proven. 593 refuted. 0 times theorem prover too weak. 26603 trivial. 0 not checked. [2023-02-18 23:45:36,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:45:36,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683994086] [2023-02-18 23:45:36,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683994086] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:45:36,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931459211] [2023-02-18 23:45:36,866 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 23:45:36,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:36,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:45:36,867 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) [2023-02-18 23:45:36,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-02-18 23:45:38,453 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2023-02-18 23:45:38,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:45:38,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 1516 conjuncts, 50 conjunts are in the unsatisfiable core [2023-02-18 23:45:38,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:45:38,822 INFO L134 CoverageAnalysis]: Checked inductivity of 64808 backedges. 35686 proven. 1260 refuted. 0 times theorem prover too weak. 27862 trivial. 0 not checked. [2023-02-18 23:45:38,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:45:40,811 INFO L134 CoverageAnalysis]: Checked inductivity of 64808 backedges. 36032 proven. 914 refuted. 0 times theorem prover too weak. 27862 trivial. 0 not checked. [2023-02-18 23:45:40,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931459211] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:45:40,811 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:45:40,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 50, 50] total 71 [2023-02-18 23:45:40,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063714246] [2023-02-18 23:45:40,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:45:40,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2023-02-18 23:45:40,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:45:40,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2023-02-18 23:45:40,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=601, Invalid=4369, Unknown=0, NotChecked=0, Total=4970 [2023-02-18 23:45:40,813 INFO L87 Difference]: Start difference. First operand 1723 states and 1821 transitions. Second operand has 71 states, 71 states have (on average 1.9154929577464788) internal successors, (136), 69 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-18 23:45:42,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:45:42,369 INFO L93 Difference]: Finished difference Result 3029 states and 3200 transitions. [2023-02-18 23:45:42,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2023-02-18 23:45:42,369 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 1.9154929577464788) internal successors, (136), 69 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) Word has length 830 [2023-02-18 23:45:42,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:45:42,374 INFO L225 Difference]: With dead ends: 3029 [2023-02-18 23:45:42,374 INFO L226 Difference]: Without dead ends: 1879 [2023-02-18 23:45:42,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1820 GetRequests, 1620 SyntacticMatches, 64 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5506 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=3578, Invalid=15328, Unknown=0, NotChecked=0, Total=18906 [2023-02-18 23:45:42,380 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 143 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1842 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 1849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-18 23:45:42,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 553 Invalid, 1849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1842 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-18 23:45:42,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2023-02-18 23:45:42,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1879. [2023-02-18 23:45:42,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1879 states, 1837 states have (on average 1.0511703864997277) internal successors, (1931), 1837 states have internal predecessors, (1931), 3 states have call successors, (3), 2 states have call predecessors, (3), 38 states have return successors, (39), 39 states have call predecessors, (39), 2 states have call successors, (39) [2023-02-18 23:45:42,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1879 states to 1879 states and 1973 transitions. [2023-02-18 23:45:42,639 INFO L78 Accepts]: Start accepts. Automaton has 1879 states and 1973 transitions. Word has length 830 [2023-02-18 23:45:42,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:45:42,639 INFO L495 AbstractCegarLoop]: Abstraction has 1879 states and 1973 transitions. [2023-02-18 23:45:42,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 1.9154929577464788) internal successors, (136), 69 states have internal predecessors, (136), 1 states have call successors, (2), 1 states have call predecessors, (2), 4 states have return successors, (4), 4 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-18 23:45:42,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1879 states and 1973 transitions. [2023-02-18 23:45:42,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2023-02-18 23:45:42,647 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:45:42,648 INFO L195 NwaCegarLoop]: trace histogram [201, 201, 201, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 19, 1, 1, 1, 1, 1, 1] [2023-02-18 23:45:42,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-02-18 23:45:42,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:42,866 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:45:42,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:45:42,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1152397758, now seen corresponding path program 18 times [2023-02-18 23:45:42,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:45:42,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897105823] [2023-02-18 23:45:42,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:45:42,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:45:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:44,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:45:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:45,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:45,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:46,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:47,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:48,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:48,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:48,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:48,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:49,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:49,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:49,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:49,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:49,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:49,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:49,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:49,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:49,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:49,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:49,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:49,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:49,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:49,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:49,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:49,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:49,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:45:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:45:49,468 INFO L134 CoverageAnalysis]: Checked inductivity of 66450 backedges. 39111 proven. 701 refuted. 0 times theorem prover too weak. 26638 trivial. 0 not checked. [2023-02-18 23:45:49,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:45:49,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897105823] [2023-02-18 23:45:49,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897105823] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:45:49,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155015748] [2023-02-18 23:45:49,468 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 23:45:49,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:45:49,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:45:49,470 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:45:49,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-02-18 23:45:51,210 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 32 check-sat command(s) [2023-02-18 23:45:51,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:45:51,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 1881 conjuncts, 50 conjunts are in the unsatisfiable core [2023-02-18 23:45:51,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:45:52,495 INFO L134 CoverageAnalysis]: Checked inductivity of 66450 backedges. 23667 proven. 34375 refuted. 0 times theorem prover too weak. 8408 trivial. 0 not checked. [2023-02-18 23:45:52,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:45:55,387 INFO L134 CoverageAnalysis]: Checked inductivity of 66450 backedges. 23667 proven. 34375 refuted. 0 times theorem prover too weak. 8408 trivial. 0 not checked. [2023-02-18 23:45:55,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155015748] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:45:55,387 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:45:55,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 50, 50] total 151 [2023-02-18 23:45:55,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827061107] [2023-02-18 23:45:55,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:45:55,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 151 states [2023-02-18 23:45:55,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:45:55,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 151 interpolants. [2023-02-18 23:45:55,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1875, Invalid=20775, Unknown=0, NotChecked=0, Total=22650 [2023-02-18 23:45:55,392 INFO L87 Difference]: Start difference. First operand 1879 states and 1973 transitions. Second operand has 151 states, 151 states have (on average 2.0927152317880795) internal successors, (316), 132 states have internal predecessors, (316), 1 states have call successors, (2), 1 states have call predecessors, (2), 21 states have return successors, (21), 21 states have call predecessors, (21), 1 states have call successors, (21) [2023-02-18 23:46:23,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:46:23,717 INFO L93 Difference]: Finished difference Result 8155 states and 8591 transitions. [2023-02-18 23:46:23,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 731 states. [2023-02-18 23:46:23,717 INFO L78 Accepts]: Start accepts. Automaton has has 151 states, 151 states have (on average 2.0927152317880795) internal successors, (316), 132 states have internal predecessors, (316), 1 states have call successors, (2), 1 states have call predecessors, (2), 21 states have return successors, (21), 21 states have call predecessors, (21), 1 states have call successors, (21) Word has length 829 [2023-02-18 23:46:23,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:46:23,740 INFO L225 Difference]: With dead ends: 8155 [2023-02-18 23:46:23,740 INFO L226 Difference]: Without dead ends: 6123 [2023-02-18 23:46:23,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2480 GetRequests, 1606 SyntacticMatches, 0 SemanticMatches, 874 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303266 ImplicationChecksByTransitivity, 28.9s TimeCoverageRelationStatistics Valid=59624, Invalid=706876, Unknown=0, NotChecked=0, Total=766500 [2023-02-18 23:46:23,780 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 5129 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 3319 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5129 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 3460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 3319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:46:23,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5129 Valid, 840 Invalid, 3460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 3319 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-02-18 23:46:23,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6123 states. [2023-02-18 23:46:24,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6123 to 2050. [2023-02-18 23:46:24,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2050 states, 2008 states have (on average 1.0453187250996017) internal successors, (2099), 2008 states have internal predecessors, (2099), 3 states have call successors, (3), 2 states have call predecessors, (3), 38 states have return successors, (39), 39 states have call predecessors, (39), 2 states have call successors, (39) [2023-02-18 23:46:24,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 2141 transitions. [2023-02-18 23:46:24,527 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 2141 transitions. Word has length 829 [2023-02-18 23:46:24,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:46:24,528 INFO L495 AbstractCegarLoop]: Abstraction has 2050 states and 2141 transitions. [2023-02-18 23:46:24,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 151 states, 151 states have (on average 2.0927152317880795) internal successors, (316), 132 states have internal predecessors, (316), 1 states have call successors, (2), 1 states have call predecessors, (2), 21 states have return successors, (21), 21 states have call predecessors, (21), 1 states have call successors, (21) [2023-02-18 23:46:24,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 2141 transitions. [2023-02-18 23:46:24,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1328 [2023-02-18 23:46:24,541 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:46:24,541 INFO L195 NwaCegarLoop]: trace histogram [345, 345, 345, 27, 26, 26, 26, 26, 26, 26, 26, 26, 26, 25, 1, 1, 1, 1, 1, 1] [2023-02-18 23:46:24,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-02-18 23:46:24,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-02-18 23:46:24,757 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:46:24,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:46:24,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1936591374, now seen corresponding path program 19 times [2023-02-18 23:46:24,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:46:24,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947978016] [2023-02-18 23:46:24,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:46:24,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:46:25,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:27,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:46:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:30,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:32,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:34,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:34,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:36,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:37,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:39,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:40,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:41,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:42,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:42,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:43,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:43,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:44,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:44,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:45,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:45,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:45,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:45,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:45,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:46,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:46,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:46,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:46,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:46,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:46,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:46,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:46,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:46,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:46,735 INFO L134 CoverageAnalysis]: Checked inductivity of 190617 backedges. 30580 proven. 1316 refuted. 0 times theorem prover too weak. 158721 trivial. 0 not checked. [2023-02-18 23:46:46,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:46:46,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947978016] [2023-02-18 23:46:46,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947978016] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:46:46,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241285209] [2023-02-18 23:46:46,736 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 23:46:46,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:46:46,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:46:46,737 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:46:46,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-02-18 23:46:48,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:48,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 3027 conjuncts, 39 conjunts are in the unsatisfiable core [2023-02-18 23:46:48,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:46:48,957 INFO L134 CoverageAnalysis]: Checked inductivity of 190617 backedges. 30601 proven. 1295 refuted. 0 times theorem prover too weak. 158721 trivial. 0 not checked. [2023-02-18 23:46:48,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:46:51,999 INFO L134 CoverageAnalysis]: Checked inductivity of 190617 backedges. 30601 proven. 1295 refuted. 0 times theorem prover too weak. 158721 trivial. 0 not checked. [2023-02-18 23:46:52,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241285209] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:46:52,000 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:46:52,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 39, 39] total 43 [2023-02-18 23:46:52,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287236397] [2023-02-18 23:46:52,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:46:52,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-02-18 23:46:52,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:46:52,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-02-18 23:46:52,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=1587, Unknown=0, NotChecked=0, Total=1806 [2023-02-18 23:46:52,002 INFO L87 Difference]: Start difference. First operand 2050 states and 2141 transitions. Second operand has 43 states, 43 states have (on average 2.372093023255814) internal successors, (102), 35 states have internal predecessors, (102), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2023-02-18 23:46:53,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:46:53,124 INFO L93 Difference]: Finished difference Result 3929 states and 4109 transitions. [2023-02-18 23:46:53,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2023-02-18 23:46:53,125 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.372093023255814) internal successors, (102), 35 states have internal predecessors, (102), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) Word has length 1327 [2023-02-18 23:46:53,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:46:53,129 INFO L225 Difference]: With dead ends: 3929 [2023-02-18 23:46:53,129 INFO L226 Difference]: Without dead ends: 2050 [2023-02-18 23:46:53,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2833 GetRequests, 2678 SyntacticMatches, 50 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5473 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1923, Invalid=9419, Unknown=0, NotChecked=0, Total=11342 [2023-02-18 23:46:53,134 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 269 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:46:53,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 203 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:46:53,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2023-02-18 23:46:53,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 2050. [2023-02-18 23:46:53,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2050 states, 2008 states have (on average 1.044820717131474) internal successors, (2098), 2008 states have internal predecessors, (2098), 3 states have call successors, (3), 2 states have call predecessors, (3), 38 states have return successors, (39), 39 states have call predecessors, (39), 2 states have call successors, (39) [2023-02-18 23:46:53,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 2140 transitions. [2023-02-18 23:46:53,914 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 2140 transitions. Word has length 1327 [2023-02-18 23:46:53,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:46:53,914 INFO L495 AbstractCegarLoop]: Abstraction has 2050 states and 2140 transitions. [2023-02-18 23:46:53,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.372093023255814) internal successors, (102), 35 states have internal predecessors, (102), 1 states have call successors, (2), 1 states have call predecessors, (2), 10 states have return successors, (10), 10 states have call predecessors, (10), 1 states have call successors, (10) [2023-02-18 23:46:53,914 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 2140 transitions. [2023-02-18 23:46:53,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1360 [2023-02-18 23:46:53,927 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:46:53,927 INFO L195 NwaCegarLoop]: trace histogram [352, 352, 352, 28, 27, 27, 27, 27, 27, 27, 27, 27, 27, 26, 1, 1, 1, 1, 1, 1] [2023-02-18 23:46:53,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-02-18 23:46:54,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-02-18 23:46:54,128 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:46:54,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:46:54,128 INFO L85 PathProgramCache]: Analyzing trace with hash 676401222, now seen corresponding path program 20 times [2023-02-18 23:46:54,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:46:54,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850462363] [2023-02-18 23:46:54,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:46:54,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:46:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:56,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:46:57,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:46:59,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:46:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:02,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:04,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:06,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:08,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:10,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:11,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:12,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:13,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:13,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:14,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:14,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:15,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:15,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:15,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:16,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:16,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:17,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:17,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:17,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:18,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:18,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:18,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:18,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:18,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:18,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:18,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:18,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:18,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:18,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:18,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:18,680 INFO L134 CoverageAnalysis]: Checked inductivity of 198747 backedges. 38664 proven. 2126 refuted. 0 times theorem prover too weak. 157957 trivial. 0 not checked. [2023-02-18 23:47:18,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:47:18,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850462363] [2023-02-18 23:47:18,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850462363] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:47:18,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51894494] [2023-02-18 23:47:18,680 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:47:18,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:47:18,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:47:18,681 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:47:18,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-02-18 23:47:21,487 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:47:21,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:47:21,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 3099 conjuncts, 44 conjunts are in the unsatisfiable core [2023-02-18 23:47:21,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:47:21,694 INFO L134 CoverageAnalysis]: Checked inductivity of 198747 backedges. 38688 proven. 2102 refuted. 0 times theorem prover too weak. 157957 trivial. 0 not checked. [2023-02-18 23:47:21,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:47:25,400 INFO L134 CoverageAnalysis]: Checked inductivity of 198747 backedges. 38688 proven. 2102 refuted. 0 times theorem prover too weak. 157957 trivial. 0 not checked. [2023-02-18 23:47:25,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51894494] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:47:25,400 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:47:25,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 44, 44] total 48 [2023-02-18 23:47:25,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906492972] [2023-02-18 23:47:25,401 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:47:25,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-18 23:47:25,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:47:25,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-18 23:47:25,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=268, Invalid=1988, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 23:47:25,403 INFO L87 Difference]: Start difference. First operand 2050 states and 2140 transitions. Second operand has 48 states, 48 states have (on average 2.3541666666666665) internal successors, (113), 39 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2023-02-18 23:47:26,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:47:26,656 INFO L93 Difference]: Finished difference Result 3896 states and 4074 transitions. [2023-02-18 23:47:26,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2023-02-18 23:47:26,657 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 2.3541666666666665) internal successors, (113), 39 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) Word has length 1359 [2023-02-18 23:47:26,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:47:26,661 INFO L225 Difference]: With dead ends: 3896 [2023-02-18 23:47:26,661 INFO L226 Difference]: Without dead ends: 2050 [2023-02-18 23:47:26,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2922 GetRequests, 2738 SyntacticMatches, 57 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8136 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=2834, Invalid=13678, Unknown=0, NotChecked=0, Total=16512 [2023-02-18 23:47:26,667 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 244 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:47:26,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 223 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:47:26,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2023-02-18 23:47:27,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 2050. [2023-02-18 23:47:27,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2050 states, 2008 states have (on average 1.0443227091633467) internal successors, (2097), 2008 states have internal predecessors, (2097), 3 states have call successors, (3), 2 states have call predecessors, (3), 38 states have return successors, (39), 39 states have call predecessors, (39), 2 states have call successors, (39) [2023-02-18 23:47:27,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2050 states to 2050 states and 2139 transitions. [2023-02-18 23:47:27,428 INFO L78 Accepts]: Start accepts. Automaton has 2050 states and 2139 transitions. Word has length 1359 [2023-02-18 23:47:27,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:47:27,428 INFO L495 AbstractCegarLoop]: Abstraction has 2050 states and 2139 transitions. [2023-02-18 23:47:27,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.3541666666666665) internal successors, (113), 39 states have internal predecessors, (113), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2023-02-18 23:47:27,429 INFO L276 IsEmpty]: Start isEmpty. Operand 2050 states and 2139 transitions. [2023-02-18 23:47:27,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1405 [2023-02-18 23:47:27,441 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:47:27,442 INFO L195 NwaCegarLoop]: trace histogram [360, 360, 360, 31, 30, 30, 30, 30, 28, 28, 28, 28, 28, 27, 1, 1, 1, 1, 1, 1] [2023-02-18 23:47:27,466 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-02-18 23:47:27,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-02-18 23:47:27,642 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:47:27,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:47:27,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1645557619, now seen corresponding path program 21 times [2023-02-18 23:47:27,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:47:27,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891848788] [2023-02-18 23:47:27,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:47:27,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:47:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:30,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-18 23:47:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:33,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:36,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:38,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:38,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:40,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:42,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:42,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:44,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:46,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:47,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:48,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:49,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:50,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:50,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:51,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:51,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:52,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:52,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:52,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:53,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:53,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:53,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:54,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:54,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:54,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:54,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:54,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:54,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:54,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:54,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:54,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:55,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:55,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:55,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:55,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:47:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:47:55,217 INFO L134 CoverageAnalysis]: Checked inductivity of 208443 backedges. 47664 proven. 3267 refuted. 0 times theorem prover too weak. 157512 trivial. 0 not checked. [2023-02-18 23:47:55,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:47:55,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891848788] [2023-02-18 23:47:55,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891848788] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:47:55,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695770964] [2023-02-18 23:47:55,218 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:47:55,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:47:55,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:47:55,219 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:47:55,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-02-18 23:47:58,851 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2023-02-18 23:47:58,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:47:58,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 1638 conjuncts, 45 conjunts are in the unsatisfiable core [2023-02-18 23:47:58,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:47:59,989 INFO L134 CoverageAnalysis]: Checked inductivity of 208443 backedges. 22344 proven. 651 refuted. 0 times theorem prover too weak. 185448 trivial. 0 not checked. [2023-02-18 23:47:59,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:48:01,797 INFO L134 CoverageAnalysis]: Checked inductivity of 208443 backedges. 22344 proven. 651 refuted. 0 times theorem prover too weak. 185448 trivial. 0 not checked. [2023-02-18 23:48:01,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695770964] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:48:01,797 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:48:01,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 45, 45] total 138 [2023-02-18 23:48:01,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875964239] [2023-02-18 23:48:01,798 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:48:01,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 138 states [2023-02-18 23:48:01,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:48:01,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2023-02-18 23:48:01,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2779, Invalid=16127, Unknown=0, NotChecked=0, Total=18906 [2023-02-18 23:48:01,803 INFO L87 Difference]: Start difference. First operand 2050 states and 2139 transitions. Second operand has 138 states, 138 states have (on average 1.8768115942028984) internal successors, (259), 128 states have internal predecessors, (259), 1 states have call successors, (2), 1 states have call predecessors, (2), 12 states have return successors, (12), 12 states have call predecessors, (12), 1 states have call successors, (12) [2023-02-18 23:48:06,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:48:06,581 INFO L93 Difference]: Finished difference Result 5500 states and 6113 transitions. [2023-02-18 23:48:06,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 221 states. [2023-02-18 23:48:06,582 INFO L78 Accepts]: Start accepts. Automaton has has 138 states, 138 states have (on average 1.8768115942028984) internal successors, (259), 128 states have internal predecessors, (259), 1 states have call successors, (2), 1 states have call predecessors, (2), 12 states have return successors, (12), 12 states have call predecessors, (12), 1 states have call successors, (12) Word has length 1404 [2023-02-18 23:48:06,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:48:06,589 INFO L225 Difference]: With dead ends: 5500 [2023-02-18 23:48:06,589 INFO L226 Difference]: Without dead ends: 3686 [2023-02-18 23:48:06,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3094 GetRequests, 2794 SyntacticMatches, 0 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29852 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=21648, Invalid=69254, Unknown=0, NotChecked=0, Total=90902 [2023-02-18 23:48:06,601 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 1139 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 23:48:06,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 355 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 23:48:06,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2023-02-18 23:48:07,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 2182. [2023-02-18 23:48:07,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2182 states, 2140 states have (on average 1.0514018691588785) internal successors, (2250), 2140 states have internal predecessors, (2250), 3 states have call successors, (3), 2 states have call predecessors, (3), 38 states have return successors, (39), 39 states have call predecessors, (39), 2 states have call successors, (39) [2023-02-18 23:48:07,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2182 states to 2182 states and 2292 transitions. [2023-02-18 23:48:07,397 INFO L78 Accepts]: Start accepts. Automaton has 2182 states and 2292 transitions. Word has length 1404 [2023-02-18 23:48:07,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:48:07,398 INFO L495 AbstractCegarLoop]: Abstraction has 2182 states and 2292 transitions. [2023-02-18 23:48:07,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 138 states, 138 states have (on average 1.8768115942028984) internal successors, (259), 128 states have internal predecessors, (259), 1 states have call successors, (2), 1 states have call predecessors, (2), 12 states have return successors, (12), 12 states have call predecessors, (12), 1 states have call successors, (12) [2023-02-18 23:48:07,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2182 states and 2292 transitions. [2023-02-18 23:48:07,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1509 [2023-02-18 23:48:07,412 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:48:07,412 INFO L195 NwaCegarLoop]: trace histogram [391, 391, 391, 32, 31, 31, 31, 31, 29, 29, 29, 29, 29, 28, 1, 1, 1, 1, 1, 1] [2023-02-18 23:48:07,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-02-18 23:48:07,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:48:07,613 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:48:07,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:48:07,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1428129289, now seen corresponding path program 22 times [2023-02-18 23:48:07,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:48:07,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089361468] [2023-02-18 23:48:07,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:48:07,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:48:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:11,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-18 23:48:11,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:14,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:17,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:20,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:22,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:24,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:25,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:27,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:27,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:28,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:30,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:31,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:31,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:32,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:33,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:34,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:34,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:35,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:35,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:36,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:36,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:37,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:37,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:38,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:38,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:38,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:38,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:39,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:39,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:39,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:39,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:39,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:39,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:39,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:39,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:39,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:39,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:48:39,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:48:39,700 INFO L134 CoverageAnalysis]: Checked inductivity of 244897 backedges. 61443 proven. 4820 refuted. 0 times theorem prover too weak. 178634 trivial. 0 not checked. [2023-02-18 23:48:39,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:48:39,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089361468] [2023-02-18 23:48:39,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089361468] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:48:39,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568221466] [2023-02-18 23:48:39,701 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:48:39,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:48:39,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:48:39,702 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:48:39,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-02-18 23:48:43,510 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:48:43,510 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:48:43,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 3436 conjuncts, 89 conjunts are in the unsatisfiable core [2023-02-18 23:48:43,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:48:46,351 INFO L134 CoverageAnalysis]: Checked inductivity of 244897 backedges. 127884 proven. 2078 refuted. 0 times theorem prover too weak. 114935 trivial. 0 not checked. [2023-02-18 23:48:46,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:48:53,797 INFO L134 CoverageAnalysis]: Checked inductivity of 244897 backedges. 127945 proven. 2017 refuted. 0 times theorem prover too weak. 114935 trivial. 0 not checked. [2023-02-18 23:48:53,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568221466] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:48:53,797 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:48:53,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 89, 89] total 183 [2023-02-18 23:48:53,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629838013] [2023-02-18 23:48:53,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:48:53,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 183 states [2023-02-18 23:48:53,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:48:53,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 183 interpolants. [2023-02-18 23:48:53,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2672, Invalid=30634, Unknown=0, NotChecked=0, Total=33306 [2023-02-18 23:48:53,803 INFO L87 Difference]: Start difference. First operand 2182 states and 2292 transitions. Second operand has 183 states, 183 states have (on average 1.8087431693989071) internal successors, (331), 171 states have internal predecessors, (331), 1 states have call successors, (2), 1 states have call predecessors, (2), 14 states have return successors, (14), 14 states have call predecessors, (14), 1 states have call successors, (14) [2023-02-18 23:49:02,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:49:02,381 INFO L93 Difference]: Finished difference Result 4905 states and 5163 transitions. [2023-02-18 23:49:02,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 244 states. [2023-02-18 23:49:02,382 INFO L78 Accepts]: Start accepts. Automaton has has 183 states, 183 states have (on average 1.8087431693989071) internal successors, (331), 171 states have internal predecessors, (331), 1 states have call successors, (2), 1 states have call predecessors, (2), 14 states have return successors, (14), 14 states have call predecessors, (14), 1 states have call successors, (14) Word has length 1508 [2023-02-18 23:49:02,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:49:02,388 INFO L225 Difference]: With dead ends: 4905 [2023-02-18 23:49:02,388 INFO L226 Difference]: Without dead ends: 3002 [2023-02-18 23:49:02,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3354 GetRequests, 2919 SyntacticMatches, 46 SemanticMatches, 389 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55260 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=17421, Invalid=135069, Unknown=0, NotChecked=0, Total=152490 [2023-02-18 23:49:02,399 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 975 mSDsluCounter, 1541 mSDsCounter, 0 mSdLazyCounter, 6469 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 6529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 6469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-02-18 23:49:02,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 1597 Invalid, 6529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 6469 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-02-18 23:49:02,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3002 states. [2023-02-18 23:49:03,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3002 to 2806. [2023-02-18 23:49:03,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 2756 states have (on average 1.0417271407837445) internal successors, (2871), 2756 states have internal predecessors, (2871), 3 states have call successors, (3), 2 states have call predecessors, (3), 46 states have return successors, (47), 47 states have call predecessors, (47), 2 states have call successors, (47) [2023-02-18 23:49:03,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 2921 transitions. [2023-02-18 23:49:03,594 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 2921 transitions. Word has length 1508 [2023-02-18 23:49:03,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:49:03,594 INFO L495 AbstractCegarLoop]: Abstraction has 2806 states and 2921 transitions. [2023-02-18 23:49:03,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 183 states, 183 states have (on average 1.8087431693989071) internal successors, (331), 171 states have internal predecessors, (331), 1 states have call successors, (2), 1 states have call predecessors, (2), 14 states have return successors, (14), 14 states have call predecessors, (14), 1 states have call successors, (14) [2023-02-18 23:49:03,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 2921 transitions. [2023-02-18 23:49:03,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1574 [2023-02-18 23:49:03,610 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:49:03,610 INFO L195 NwaCegarLoop]: trace histogram [409, 409, 409, 33, 32, 32, 32, 32, 30, 30, 30, 30, 30, 29, 1, 1, 1, 1, 1, 1] [2023-02-18 23:49:03,641 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-02-18 23:49:03,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:49:03,811 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:49:03,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:49:03,811 INFO L85 PathProgramCache]: Analyzing trace with hash 859194834, now seen corresponding path program 23 times [2023-02-18 23:49:03,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:49:03,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282112081] [2023-02-18 23:49:03,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:49:03,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:49:04,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:07,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-18 23:49:08,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:11,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:11,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:14,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:16,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:19,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:19,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:21,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:23,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:25,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:26,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:28,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:28,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:29,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:30,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:30,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:30,755 INFO L134 CoverageAnalysis]: Checked inductivity of 267732 backedges. 141635 proven. 818 refuted. 0 times theorem prover too weak. 125279 trivial. 0 not checked. [2023-02-18 23:49:30,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:49:30,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282112081] [2023-02-18 23:49:30,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282112081] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:49:30,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545366441] [2023-02-18 23:49:30,756 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 23:49:30,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:49:30,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:49:30,757 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:49:30,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-02-18 23:49:34,523 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 34 check-sat command(s) [2023-02-18 23:49:34,523 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:49:34,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 1428 conjuncts, 57 conjunts are in the unsatisfiable core [2023-02-18 23:49:34,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:49:34,974 INFO L134 CoverageAnalysis]: Checked inductivity of 267732 backedges. 109525 proven. 818 refuted. 0 times theorem prover too weak. 157389 trivial. 0 not checked. [2023-02-18 23:49:34,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:49:40,293 INFO L134 CoverageAnalysis]: Checked inductivity of 267732 backedges. 109562 proven. 781 refuted. 0 times theorem prover too weak. 157389 trivial. 0 not checked. [2023-02-18 23:49:40,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545366441] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:49:40,293 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:49:40,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57, 57] total 82 [2023-02-18 23:49:40,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837478433] [2023-02-18 23:49:40,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:49:40,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2023-02-18 23:49:40,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:49:40,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2023-02-18 23:49:40,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=812, Invalid=5830, Unknown=0, NotChecked=0, Total=6642 [2023-02-18 23:49:40,296 INFO L87 Difference]: Start difference. First operand 2806 states and 2921 transitions. Second operand has 82 states, 82 states have (on average 1.8048780487804879) internal successors, (148), 81 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 23:49:42,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:49:42,823 INFO L93 Difference]: Finished difference Result 4973 states and 5184 transitions. [2023-02-18 23:49:42,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2023-02-18 23:49:42,824 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 82 states have (on average 1.8048780487804879) internal successors, (148), 81 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 1573 [2023-02-18 23:49:42,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:49:42,828 INFO L225 Difference]: With dead ends: 4973 [2023-02-18 23:49:42,828 INFO L226 Difference]: Without dead ends: 2851 [2023-02-18 23:49:42,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3326 GetRequests, 3120 SyntacticMatches, 72 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5822 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=3392, Invalid=14968, Unknown=0, NotChecked=0, Total=18360 [2023-02-18 23:49:42,832 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 195 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 1981 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 1993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-18 23:49:42,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 820 Invalid, 1993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1981 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-18 23:49:42,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2851 states. [2023-02-18 23:49:44,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2851 to 2851. [2023-02-18 23:49:44,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2851 states, 2800 states have (on average 1.0385714285714285) internal successors, (2908), 2800 states have internal predecessors, (2908), 3 states have call successors, (3), 2 states have call predecessors, (3), 47 states have return successors, (48), 48 states have call predecessors, (48), 2 states have call successors, (48) [2023-02-18 23:49:44,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2851 states to 2851 states and 2959 transitions. [2023-02-18 23:49:44,050 INFO L78 Accepts]: Start accepts. Automaton has 2851 states and 2959 transitions. Word has length 1573 [2023-02-18 23:49:44,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:49:44,050 INFO L495 AbstractCegarLoop]: Abstraction has 2851 states and 2959 transitions. [2023-02-18 23:49:44,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 1.8048780487804879) internal successors, (148), 81 states have internal predecessors, (148), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-18 23:49:44,050 INFO L276 IsEmpty]: Start isEmpty. Operand 2851 states and 2959 transitions. [2023-02-18 23:49:44,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1582 [2023-02-18 23:49:44,067 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:49:44,067 INFO L195 NwaCegarLoop]: trace histogram [415, 415, 415, 31, 30, 30, 30, 30, 30, 30, 30, 30, 30, 29, 1, 1, 1, 1, 1, 1] [2023-02-18 23:49:44,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-02-18 23:49:44,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-02-18 23:49:44,274 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:49:44,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:49:44,275 INFO L85 PathProgramCache]: Analyzing trace with hash -665090974, now seen corresponding path program 24 times [2023-02-18 23:49:44,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:49:44,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630822620] [2023-02-18 23:49:44,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:49:44,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:49:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:48,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:49:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:51,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:52,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:54,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:49:57,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:49:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:00,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:02,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:05,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:06,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:07,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:08,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:08,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:10,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:11,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:12,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:12,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:12,981 INFO L134 CoverageAnalysis]: Checked inductivity of 275010 backedges. 147290 proven. 944 refuted. 0 times theorem prover too weak. 126776 trivial. 0 not checked. [2023-02-18 23:50:12,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:50:12,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630822620] [2023-02-18 23:50:12,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630822620] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:50:12,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89543348] [2023-02-18 23:50:12,981 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 23:50:12,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:50:12,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:50:12,982 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:50:12,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-02-18 23:50:17,613 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 47 check-sat command(s) [2023-02-18 23:50:17,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:50:17,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 2503 conjuncts, 50 conjunts are in the unsatisfiable core [2023-02-18 23:50:17,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:50:19,105 INFO L134 CoverageAnalysis]: Checked inductivity of 275010 backedges. 71025 proven. 3621 refuted. 0 times theorem prover too weak. 200364 trivial. 0 not checked. [2023-02-18 23:50:19,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:50:21,700 INFO L134 CoverageAnalysis]: Checked inductivity of 275010 backedges. 71025 proven. 3621 refuted. 0 times theorem prover too weak. 200364 trivial. 0 not checked. [2023-02-18 23:50:21,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89543348] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:50:21,700 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:50:21,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 50, 50] total 159 [2023-02-18 23:50:21,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578740887] [2023-02-18 23:50:21,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:50:21,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 159 states [2023-02-18 23:50:21,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:50:21,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 159 interpolants. [2023-02-18 23:50:21,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3029, Invalid=22093, Unknown=0, NotChecked=0, Total=25122 [2023-02-18 23:50:21,707 INFO L87 Difference]: Start difference. First operand 2851 states and 2959 transitions. Second operand has 159 states, 159 states have (on average 1.7106918238993711) internal successors, (272), 156 states have internal predecessors, (272), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-18 23:50:36,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:50:36,857 INFO L93 Difference]: Finished difference Result 10356 states and 11384 transitions. [2023-02-18 23:50:36,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 315 states. [2023-02-18 23:50:36,858 INFO L78 Accepts]: Start accepts. Automaton has has 159 states, 159 states have (on average 1.7106918238993711) internal successors, (272), 156 states have internal predecessors, (272), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 1581 [2023-02-18 23:50:36,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:50:36,871 INFO L225 Difference]: With dead ends: 10356 [2023-02-18 23:50:36,871 INFO L226 Difference]: Without dead ends: 7960 [2023-02-18 23:50:36,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3602 GetRequests, 3135 SyntacticMatches, 0 SemanticMatches, 467 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67608 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=32855, Invalid=186637, Unknown=0, NotChecked=0, Total=219492 [2023-02-18 23:50:36,883 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 2406 mSDsluCounter, 1033 mSDsCounter, 0 mSdLazyCounter, 3219 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 1075 SdHoareTripleChecker+Invalid, 3312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 3219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-02-18 23:50:36,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2406 Valid, 1075 Invalid, 3312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 3219 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-02-18 23:50:36,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7960 states. [2023-02-18 23:50:38,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7960 to 3031. [2023-02-18 23:50:38,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3031 states, 2978 states have (on average 1.042981867024849) internal successors, (3106), 2978 states have internal predecessors, (3106), 3 states have call successors, (3), 2 states have call predecessors, (3), 49 states have return successors, (50), 50 states have call predecessors, (50), 2 states have call successors, (50) [2023-02-18 23:50:38,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3031 states to 3031 states and 3159 transitions. [2023-02-18 23:50:38,176 INFO L78 Accepts]: Start accepts. Automaton has 3031 states and 3159 transitions. Word has length 1581 [2023-02-18 23:50:38,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:50:38,177 INFO L495 AbstractCegarLoop]: Abstraction has 3031 states and 3159 transitions. [2023-02-18 23:50:38,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 159 states, 159 states have (on average 1.7106918238993711) internal successors, (272), 156 states have internal predecessors, (272), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-18 23:50:38,177 INFO L276 IsEmpty]: Start isEmpty. Operand 3031 states and 3159 transitions. [2023-02-18 23:50:38,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1685 [2023-02-18 23:50:38,197 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:50:38,197 INFO L195 NwaCegarLoop]: trace histogram [446, 446, 446, 33, 32, 32, 32, 32, 30, 30, 30, 30, 30, 29, 1, 1, 1, 1, 1, 1] [2023-02-18 23:50:38,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-02-18 23:50:38,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-02-18 23:50:38,413 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:50:38,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:50:38,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1184728829, now seen corresponding path program 25 times [2023-02-18 23:50:38,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:50:38,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124662263] [2023-02-18 23:50:38,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:50:38,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:50:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:42,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-18 23:50:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:46,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:50,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:50,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:53,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:56,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:50:58,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:50:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:01,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:03,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:04,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:06,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:08,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:08,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:09,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:09,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:09,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:09,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:09,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:09,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:09,609 INFO L134 CoverageAnalysis]: Checked inductivity of 316239 backedges. 166734 proven. 1079 refuted. 0 times theorem prover too weak. 148426 trivial. 0 not checked. [2023-02-18 23:51:09,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:51:09,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124662263] [2023-02-18 23:51:09,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124662263] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:51:09,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951367496] [2023-02-18 23:51:09,609 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 23:51:09,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:51:09,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:51:09,610 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:51:09,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-02-18 23:51:14,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:14,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 3844 conjuncts, 79 conjunts are in the unsatisfiable core [2023-02-18 23:51:14,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:51:15,566 INFO L134 CoverageAnalysis]: Checked inductivity of 316239 backedges. 156517 proven. 6224 refuted. 0 times theorem prover too weak. 153498 trivial. 0 not checked. [2023-02-18 23:51:15,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:51:26,822 INFO L134 CoverageAnalysis]: Checked inductivity of 316239 backedges. 156651 proven. 6090 refuted. 0 times theorem prover too weak. 153498 trivial. 0 not checked. [2023-02-18 23:51:26,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951367496] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:51:26,823 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:51:26,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 79, 79] total 108 [2023-02-18 23:51:26,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116714940] [2023-02-18 23:51:26,823 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:51:26,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 108 states [2023-02-18 23:51:26,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:51:26,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2023-02-18 23:51:26,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=979, Invalid=10577, Unknown=0, NotChecked=0, Total=11556 [2023-02-18 23:51:26,826 INFO L87 Difference]: Start difference. First operand 3031 states and 3159 transitions. Second operand has 108 states, 108 states have (on average 2.1944444444444446) internal successors, (237), 93 states have internal predecessors, (237), 1 states have call successors, (2), 1 states have call predecessors, (2), 17 states have return successors, (17), 17 states have call predecessors, (17), 1 states have call successors, (17) [2023-02-18 23:51:39,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:51:39,231 INFO L93 Difference]: Finished difference Result 5390 states and 5628 transitions. [2023-02-18 23:51:39,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 317 states. [2023-02-18 23:51:39,231 INFO L78 Accepts]: Start accepts. Automaton has has 108 states, 108 states have (on average 2.1944444444444446) internal successors, (237), 93 states have internal predecessors, (237), 1 states have call successors, (2), 1 states have call predecessors, (2), 17 states have return successors, (17), 17 states have call predecessors, (17), 1 states have call successors, (17) Word has length 1684 [2023-02-18 23:51:39,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:51:39,237 INFO L225 Difference]: With dead ends: 5390 [2023-02-18 23:51:39,237 INFO L226 Difference]: Without dead ends: 3184 [2023-02-18 23:51:39,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3801 GetRequests, 3286 SyntacticMatches, 110 SemanticMatches, 405 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58193 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=22844, Invalid=142398, Unknown=0, NotChecked=0, Total=165242 [2023-02-18 23:51:39,246 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 163 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 10020 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 869 SdHoareTripleChecker+Invalid, 10037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 10020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-02-18 23:51:39,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 869 Invalid, 10037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 10020 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-02-18 23:51:39,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3184 states. [2023-02-18 23:51:40,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3184 to 3184. [2023-02-18 23:51:40,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3184 states, 3128 states have (on average 1.0393222506393862) internal successors, (3251), 3128 states have internal predecessors, (3251), 3 states have call successors, (3), 2 states have call predecessors, (3), 52 states have return successors, (53), 53 states have call predecessors, (53), 2 states have call successors, (53) [2023-02-18 23:51:40,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 3307 transitions. [2023-02-18 23:51:40,625 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 3307 transitions. Word has length 1684 [2023-02-18 23:51:40,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:51:40,626 INFO L495 AbstractCegarLoop]: Abstraction has 3184 states and 3307 transitions. [2023-02-18 23:51:40,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 108 states, 108 states have (on average 2.1944444444444446) internal successors, (237), 93 states have internal predecessors, (237), 1 states have call successors, (2), 1 states have call predecessors, (2), 17 states have return successors, (17), 17 states have call predecessors, (17), 1 states have call successors, (17) [2023-02-18 23:51:40,626 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 3307 transitions. [2023-02-18 23:51:40,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1697 [2023-02-18 23:51:40,645 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:51:40,645 INFO L195 NwaCegarLoop]: trace histogram [450, 450, 450, 33, 32, 32, 32, 32, 30, 30, 30, 30, 30, 29, 1, 1, 1, 1, 1, 1] [2023-02-18 23:51:40,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-02-18 23:51:40,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:51:40,873 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:51:40,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:51:40,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1822516963, now seen corresponding path program 26 times [2023-02-18 23:51:40,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:51:40,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230651245] [2023-02-18 23:51:40,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:51:40,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:51:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:45,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-18 23:51:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:49,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:53,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:53,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:56,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:51:59,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:51:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:01,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:02,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:04,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:04,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:06,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:06,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:08,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:10,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:11,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:12,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:13,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:13,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:13,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:13,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:13,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:13,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:13,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:13,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:13,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:13,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:13,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:13,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:13,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:13,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:13,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:13,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:13,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:13,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:13,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:13,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:13,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:13,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:13,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:52:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:13,423 INFO L134 CoverageAnalysis]: Checked inductivity of 321729 backedges. 171141 proven. 1223 refuted. 0 times theorem prover too weak. 149365 trivial. 0 not checked. [2023-02-18 23:52:13,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:52:13,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230651245] [2023-02-18 23:52:13,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230651245] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:52:13,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72722681] [2023-02-18 23:52:13,423 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:52:13,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:52:13,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:52:13,424 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:52:13,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-02-18 23:52:19,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:52:19,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:52:19,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 3872 conjuncts, 84 conjunts are in the unsatisfiable core [2023-02-18 23:52:19,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:52:21,000 INFO L134 CoverageAnalysis]: Checked inductivity of 321729 backedges. 172789 proven. 7463 refuted. 0 times theorem prover too weak. 141477 trivial. 0 not checked. [2023-02-18 23:52:21,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:52:33,421 INFO L134 CoverageAnalysis]: Checked inductivity of 321729 backedges. 172940 proven. 7312 refuted. 0 times theorem prover too weak. 141477 trivial. 0 not checked. [2023-02-18 23:52:33,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72722681] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:52:33,421 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:52:33,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 84, 84] total 115 [2023-02-18 23:52:33,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697442333] [2023-02-18 23:52:33,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:52:33,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 115 states [2023-02-18 23:52:33,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:52:33,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2023-02-18 23:52:33,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1100, Invalid=12010, Unknown=0, NotChecked=0, Total=13110 [2023-02-18 23:52:33,426 INFO L87 Difference]: Start difference. First operand 3184 states and 3307 transitions. Second operand has 115 states, 115 states have (on average 2.1826086956521737) internal successors, (251), 99 states have internal predecessors, (251), 1 states have call successors, (2), 1 states have call predecessors, (2), 18 states have return successors, (18), 18 states have call predecessors, (18), 1 states have call successors, (18) [2023-02-18 23:52:48,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:52:48,543 INFO L93 Difference]: Finished difference Result 5606 states and 5833 transitions. [2023-02-18 23:52:48,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 354 states. [2023-02-18 23:52:48,543 INFO L78 Accepts]: Start accepts. Automaton has has 115 states, 115 states have (on average 2.1826086956521737) internal successors, (251), 99 states have internal predecessors, (251), 1 states have call successors, (2), 1 states have call predecessors, (2), 18 states have return successors, (18), 18 states have call predecessors, (18), 1 states have call successors, (18) Word has length 1696 [2023-02-18 23:52:48,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:52:48,549 INFO L225 Difference]: With dead ends: 5606 [2023-02-18 23:52:48,549 INFO L226 Difference]: Without dead ends: 3400 [2023-02-18 23:52:48,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3865 GetRequests, 3300 SyntacticMatches, 117 SemanticMatches, 448 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71177 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=27779, Invalid=174271, Unknown=0, NotChecked=0, Total=202050 [2023-02-18 23:52:48,559 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 168 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 11899 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 11918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 11899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:52:48,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 998 Invalid, 11918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 11899 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-02-18 23:52:48,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3400 states. [2023-02-18 23:52:50,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3400 to 3400. [2023-02-18 23:52:50,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3400 states, 3340 states have (on average 1.0356287425149702) internal successors, (3459), 3340 states have internal predecessors, (3459), 3 states have call successors, (3), 2 states have call predecessors, (3), 56 states have return successors, (57), 57 states have call predecessors, (57), 2 states have call successors, (57) [2023-02-18 23:52:50,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3400 states to 3400 states and 3519 transitions. [2023-02-18 23:52:50,151 INFO L78 Accepts]: Start accepts. Automaton has 3400 states and 3519 transitions. Word has length 1696 [2023-02-18 23:52:50,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:52:50,151 INFO L495 AbstractCegarLoop]: Abstraction has 3400 states and 3519 transitions. [2023-02-18 23:52:50,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 115 states, 115 states have (on average 2.1826086956521737) internal successors, (251), 99 states have internal predecessors, (251), 1 states have call successors, (2), 1 states have call predecessors, (2), 18 states have return successors, (18), 18 states have call predecessors, (18), 1 states have call successors, (18) [2023-02-18 23:52:50,152 INFO L276 IsEmpty]: Start isEmpty. Operand 3400 states and 3519 transitions. [2023-02-18 23:52:50,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1706 [2023-02-18 23:52:50,169 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:52:50,169 INFO L195 NwaCegarLoop]: trace histogram [453, 453, 453, 33, 32, 32, 32, 32, 30, 30, 30, 30, 30, 29, 1, 1, 1, 1, 1, 1] [2023-02-18 23:52:50,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2023-02-18 23:52:50,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:52:50,370 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:52:50,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:52:50,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1174085570, now seen corresponding path program 27 times [2023-02-18 23:52:50,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:52:50,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447203650] [2023-02-18 23:52:50,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:52:50,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:52:51,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:55,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-02-18 23:52:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:52:59,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:03,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:03,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:06,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:09,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:12,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:15,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:17,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:19,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:21,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:21,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:23,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:24,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:24,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:24,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:24,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:24,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:24,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:53:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:53:24,967 INFO L134 CoverageAnalysis]: Checked inductivity of 325878 backedges. 174663 proven. 1376 refuted. 0 times theorem prover too weak. 149839 trivial. 0 not checked. [2023-02-18 23:53:24,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:53:24,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447203650] [2023-02-18 23:53:24,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447203650] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:53:24,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264262310] [2023-02-18 23:53:24,967 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:53:24,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:53:24,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:53:24,968 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:53:24,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-02-18 23:53:32,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 26 check-sat command(s) [2023-02-18 23:53:32,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:53:32,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 2080 conjuncts, 56 conjunts are in the unsatisfiable core [2023-02-18 23:53:32,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:53:34,322 INFO L134 CoverageAnalysis]: Checked inductivity of 325878 backedges. 134127 proven. 20890 refuted. 0 times theorem prover too weak. 170861 trivial. 0 not checked. [2023-02-18 23:53:34,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:53:37,988 INFO L134 CoverageAnalysis]: Checked inductivity of 325878 backedges. 134127 proven. 20890 refuted. 0 times theorem prover too weak. 170861 trivial. 0 not checked. [2023-02-18 23:53:37,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264262310] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:53:37,989 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:53:37,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 56, 56] total 183 [2023-02-18 23:53:37,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636788005] [2023-02-18 23:53:37,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:53:37,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 183 states [2023-02-18 23:53:37,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:53:37,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 183 interpolants. [2023-02-18 23:53:37,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3496, Invalid=29810, Unknown=0, NotChecked=0, Total=33306 [2023-02-18 23:53:37,993 INFO L87 Difference]: Start difference. First operand 3400 states and 3519 transitions. Second operand has 183 states, 183 states have (on average 1.7595628415300546) internal successors, (322), 176 states have internal predecessors, (322), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2023-02-18 23:54:12,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:54:12,434 INFO L93 Difference]: Finished difference Result 16681 states and 18312 transitions. [2023-02-18 23:54:12,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 607 states. [2023-02-18 23:54:12,435 INFO L78 Accepts]: Start accepts. Automaton has has 183 states, 183 states have (on average 1.7595628415300546) internal successors, (322), 176 states have internal predecessors, (322), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) Word has length 1705 [2023-02-18 23:54:12,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:54:12,457 INFO L225 Difference]: With dead ends: 16681 [2023-02-18 23:54:12,458 INFO L226 Difference]: Without dead ends: 13919 [2023-02-18 23:54:12,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4154 GetRequests, 3371 SyntacticMatches, 0 SemanticMatches, 783 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221466 ImplicationChecksByTransitivity, 31.0s TimeCoverageRelationStatistics Valid=73624, Invalid=541816, Unknown=0, NotChecked=0, Total=615440 [2023-02-18 23:54:12,488 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 4843 mSDsluCounter, 1198 mSDsCounter, 0 mSdLazyCounter, 5127 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4843 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 5290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 5127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-02-18 23:54:12,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4843 Valid, 1246 Invalid, 5290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 5127 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-02-18 23:54:12,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13919 states. [2023-02-18 23:54:14,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13919 to 3829. [2023-02-18 23:54:14,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3829 states, 3764 states have (on average 1.0435706695005313) internal successors, (3928), 3764 states have internal predecessors, (3928), 3 states have call successors, (3), 2 states have call predecessors, (3), 61 states have return successors, (62), 62 states have call predecessors, (62), 2 states have call successors, (62) [2023-02-18 23:54:14,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3829 states to 3829 states and 3993 transitions. [2023-02-18 23:54:14,520 INFO L78 Accepts]: Start accepts. Automaton has 3829 states and 3993 transitions. Word has length 1705 [2023-02-18 23:54:14,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:54:14,521 INFO L495 AbstractCegarLoop]: Abstraction has 3829 states and 3993 transitions. [2023-02-18 23:54:14,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 183 states, 183 states have (on average 1.7595628415300546) internal successors, (322), 176 states have internal predecessors, (322), 1 states have call successors, (2), 1 states have call predecessors, (2), 9 states have return successors, (9), 9 states have call predecessors, (9), 1 states have call successors, (9) [2023-02-18 23:54:14,521 INFO L276 IsEmpty]: Start isEmpty. Operand 3829 states and 3993 transitions. [2023-02-18 23:54:14,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1846 [2023-02-18 23:54:14,541 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:54:14,541 INFO L195 NwaCegarLoop]: trace histogram [503, 503, 503, 31, 30, 30, 30, 30, 30, 30, 30, 30, 30, 29, 1, 1, 1, 1, 1, 1] [2023-02-18 23:54:14,602 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2023-02-18 23:54:14,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:54:14,742 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:54:14,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:54:14,742 INFO L85 PathProgramCache]: Analyzing trace with hash 476218130, now seen corresponding path program 28 times [2023-02-18 23:54:14,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:54:14,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724171326] [2023-02-18 23:54:14,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:54:14,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:54:15,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:54:21,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:54:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:54:27,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:54:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:54:33,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:54:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:54:38,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:54:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:54:42,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:54:42,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:54:46,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:54:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:54:49,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:54:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:54:52,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:54:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:54:55,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:54:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:54:58,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:54:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:00,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:01,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:02,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:03,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:03,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:04,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:05,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:05,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:05,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:06,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:06,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:06,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:07,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:07,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:07,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:07,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:07,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:07,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:08,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:08,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:08,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:08,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:08,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:55:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:55:08,526 INFO L134 CoverageAnalysis]: Checked inductivity of 398694 backedges. 232003 proven. 10525 refuted. 0 times theorem prover too weak. 156166 trivial. 0 not checked. [2023-02-18 23:55:08,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:55:08,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724171326] [2023-02-18 23:55:08,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724171326] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:55:08,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936749400] [2023-02-18 23:55:08,526 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:55:08,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:55:08,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:55:08,527 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:55:08,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-02-18 23:55:16,029 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:55:16,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:55:16,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 4225 conjuncts, 97 conjunts are in the unsatisfiable core [2023-02-18 23:55:16,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:55:18,735 INFO L134 CoverageAnalysis]: Checked inductivity of 398694 backedges. 227560 proven. 2483 refuted. 0 times theorem prover too weak. 168651 trivial. 0 not checked. [2023-02-18 23:55:18,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:55:27,769 INFO L134 CoverageAnalysis]: Checked inductivity of 398694 backedges. 227627 proven. 2416 refuted. 0 times theorem prover too weak. 168651 trivial. 0 not checked. [2023-02-18 23:55:27,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936749400] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:55:27,769 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:55:27,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 97, 97] total 201 [2023-02-18 23:55:27,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786889847] [2023-02-18 23:55:27,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:55:27,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 201 states [2023-02-18 23:55:27,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:55:27,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 201 interpolants. [2023-02-18 23:55:27,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3021, Invalid=37179, Unknown=0, NotChecked=0, Total=40200 [2023-02-18 23:55:27,775 INFO L87 Difference]: Start difference. First operand 3829 states and 3993 transitions. Second operand has 201 states, 201 states have (on average 1.9402985074626866) internal successors, (390), 180 states have internal predecessors, (390), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) [2023-02-18 23:56:09,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:56:09,701 INFO L93 Difference]: Finished difference Result 7504 states and 7850 transitions. [2023-02-18 23:56:09,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 524 states. [2023-02-18 23:56:09,701 INFO L78 Accepts]: Start accepts. Automaton has has 201 states, 201 states have (on average 1.9402985074626866) internal successors, (390), 180 states have internal predecessors, (390), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) Word has length 1845 [2023-02-18 23:56:09,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:56:09,709 INFO L225 Difference]: With dead ends: 7504 [2023-02-18 23:56:09,709 INFO L226 Difference]: Without dead ends: 5085 [2023-02-18 23:56:09,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4357 GetRequests, 3571 SyntacticMatches, 87 SemanticMatches, 699 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137517 ImplicationChecksByTransitivity, 38.6s TimeCoverageRelationStatistics Valid=62682, Invalid=428018, Unknown=0, NotChecked=0, Total=490700 [2023-02-18 23:56:09,729 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 310 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 22500 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 22541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 22500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-02-18 23:56:09,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 1536 Invalid, 22541 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 22500 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-02-18 23:56:09,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5085 states. [2023-02-18 23:56:12,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5085 to 5017. [2023-02-18 23:56:12,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5017 states, 4936 states have (on average 1.034643435980551) internal successors, (5107), 4936 states have internal predecessors, (5107), 3 states have call successors, (3), 2 states have call predecessors, (3), 77 states have return successors, (78), 78 states have call predecessors, (78), 2 states have call successors, (78) [2023-02-18 23:56:12,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5017 states to 5017 states and 5188 transitions. [2023-02-18 23:56:12,640 INFO L78 Accepts]: Start accepts. Automaton has 5017 states and 5188 transitions. Word has length 1845 [2023-02-18 23:56:12,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:56:12,641 INFO L495 AbstractCegarLoop]: Abstraction has 5017 states and 5188 transitions. [2023-02-18 23:56:12,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 201 states, 201 states have (on average 1.9402985074626866) internal successors, (390), 180 states have internal predecessors, (390), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) [2023-02-18 23:56:12,641 INFO L276 IsEmpty]: Start isEmpty. Operand 5017 states and 5188 transitions. [2023-02-18 23:56:12,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1855 [2023-02-18 23:56:12,663 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:56:12,663 INFO L195 NwaCegarLoop]: trace histogram [506, 506, 506, 31, 30, 30, 30, 30, 30, 30, 30, 30, 30, 29, 1, 1, 1, 1, 1, 1] [2023-02-18 23:56:12,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-02-18 23:56:12,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-02-18 23:56:12,864 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting recErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [recErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, recErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 23:56:12,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:56:12,864 INFO L85 PathProgramCache]: Analyzing trace with hash 989777965, now seen corresponding path program 29 times [2023-02-18 23:56:12,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:56:12,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325174101] [2023-02-18 23:56:12,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:56:12,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:56:13,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:56:20,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-18 23:56:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:56:27,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:56:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:56:33,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:56:34,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:56:39,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:56:39,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:56:43,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:56:44,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:56:47,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:56:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:56:51,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:56:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:56:54,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:56:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:56:57,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:56:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:00,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:57:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:02,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:57:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:03,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:57:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:04,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:57:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:57:05,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-18 23:57:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat