./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-restricted-15/java_AG313.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 26d01a9c 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-restricted-15/java_AG313.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 1aba30eccff08319e90124805f6572c72af18ec70c6e7d3c36f1ebe7fe7db059 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 08:39:42,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 08:39:42,575 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 08:39:42,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 08:39:42,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 08:39:42,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 08:39:42,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 08:39:42,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 08:39:42,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 08:39:42,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 08:39:42,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 08:39:42,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 08:39:42,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 08:39:42,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 08:39:42,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 08:39:42,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 08:39:42,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 08:39:42,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 08:39:42,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 08:39:42,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 08:39:42,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 08:39:42,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 08:39:42,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 08:39:42,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 08:39:42,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 08:39:42,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 08:39:42,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 08:39:42,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 08:39:42,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 08:39:42,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 08:39:42,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 08:39:42,639 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 08:39:42,640 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 08:39:42,641 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 08:39:42,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 08:39:42,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 08:39:42,642 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 08:39:42,642 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 08:39:42,643 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 08:39:42,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 08:39:42,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 08:39:42,645 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-18 08:39:42,663 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 08:39:42,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 08:39:42,665 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 08:39:42,666 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 08:39:42,666 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 08:39:42,666 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 08:39:42,667 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 08:39:42,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 08:39:42,667 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 08:39:42,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 08:39:42,668 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 08:39:42,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 08:39:42,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 08:39:42,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 08:39:42,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 08:39:42,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 08:39:42,669 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 08:39:42,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 08:39:42,669 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 08:39:42,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 08:39:42,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 08:39:42,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 08:39:42,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 08:39:42,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 08:39:42,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 08:39:42,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 08:39:42,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 08:39:42,670 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 08:39:42,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 08:39:42,671 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 08:39:42,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 08:39:42,671 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 08:39:42,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 08:39:42,672 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 08:39:42,672 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1aba30eccff08319e90124805f6572c72af18ec70c6e7d3c36f1ebe7fe7db059 [2023-02-18 08:39:42,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 08:39:42,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 08:39:42,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 08:39:42,861 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 08:39:42,861 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 08:39:42,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/java_AG313.c [2023-02-18 08:39:43,858 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 08:39:43,987 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 08:39:43,988 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/java_AG313.c [2023-02-18 08:39:43,991 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b44f3ed4/8cf191672d2d4d19bd3a2fa2391cce46/FLAGbc090580e [2023-02-18 08:39:44,000 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b44f3ed4/8cf191672d2d4d19bd3a2fa2391cce46 [2023-02-18 08:39:44,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 08:39:44,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 08:39:44,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 08:39:44,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 08:39:44,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 08:39:44,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:39:44" (1/1) ... [2023-02-18 08:39:44,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@204127e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:39:44, skipping insertion in model container [2023-02-18 08:39:44,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:39:44" (1/1) ... [2023-02-18 08:39:44,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 08:39:44,027 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 08:39:44,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:39:44,118 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 08:39:44,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:39:44,133 INFO L208 MainTranslator]: Completed translation [2023-02-18 08:39:44,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:39:44 WrapperNode [2023-02-18 08:39:44,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 08:39:44,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 08:39:44,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 08:39:44,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 08:39:44,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:39:44" (1/1) ... [2023-02-18 08:39:44,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:39:44" (1/1) ... [2023-02-18 08:39:44,150 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 29 [2023-02-18 08:39:44,150 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 08:39:44,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 08:39:44,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 08:39:44,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 08:39:44,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:39:44" (1/1) ... [2023-02-18 08:39:44,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:39:44" (1/1) ... [2023-02-18 08:39:44,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:39:44" (1/1) ... [2023-02-18 08:39:44,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:39:44" (1/1) ... [2023-02-18 08:39:44,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:39:44" (1/1) ... [2023-02-18 08:39:44,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:39:44" (1/1) ... [2023-02-18 08:39:44,162 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:39:44" (1/1) ... [2023-02-18 08:39:44,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:39:44" (1/1) ... [2023-02-18 08:39:44,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 08:39:44,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 08:39:44,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 08:39:44,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 08:39:44,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:39:44" (1/1) ... [2023-02-18 08:39:44,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 08:39:44,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:39:44,190 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 08:39:44,195 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 08:39:44,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 08:39:44,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 08:39:44,264 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 08:39:44,265 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 08:39:44,329 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 08:39:44,334 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 08:39:44,334 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 08:39:44,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:39:44 BoogieIcfgContainer [2023-02-18 08:39:44,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 08:39:44,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 08:39:44,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 08:39:44,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 08:39:44,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 08:39:44" (1/3) ... [2023-02-18 08:39:44,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c56993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:39:44, skipping insertion in model container [2023-02-18 08:39:44,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:39:44" (2/3) ... [2023-02-18 08:39:44,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28c56993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 08:39:44, skipping insertion in model container [2023-02-18 08:39:44,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:39:44" (3/3) ... [2023-02-18 08:39:44,350 INFO L112 eAbstractionObserver]: Analyzing ICFG java_AG313.c [2023-02-18 08:39:44,362 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 08:39:44,362 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-02-18 08:39:44,390 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 08:39:44,395 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;@633f8c82, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 08:39:44,395 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-02-18 08:39:44,398 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:44,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 08:39:44,401 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:39:44,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 08:39:44,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:39:44,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:39:44,406 INFO L85 PathProgramCache]: Analyzing trace with hash 28693987, now seen corresponding path program 1 times [2023-02-18 08:39:44,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:39:44,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769231650] [2023-02-18 08:39:44,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:39:44,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:39:44,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:39:44,551 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 08:39:44,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:39:44,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769231650] [2023-02-18 08:39:44,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769231650] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:39:44,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:39:44,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 08:39:44,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122370984] [2023-02-18 08:39:44,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:39:44,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 08:39:44,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:39:44,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 08:39:44,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:39:44,588 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:44,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:39:44,604 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2023-02-18 08:39:44,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 08:39:44,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-18 08:39:44,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:39:44,613 INFO L225 Difference]: With dead ends: 28 [2023-02-18 08:39:44,613 INFO L226 Difference]: Without dead ends: 19 [2023-02-18 08:39:44,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:39:44,619 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 19 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:39:44,620 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 22 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:39:44,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-02-18 08:39:44,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-02-18 08:39:44,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:44,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2023-02-18 08:39:44,642 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 5 [2023-02-18 08:39:44,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:39:44,643 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2023-02-18 08:39:44,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:44,643 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2023-02-18 08:39:44,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 08:39:44,644 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:39:44,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 08:39:44,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 08:39:44,645 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:39:44,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:39:44,647 INFO L85 PathProgramCache]: Analyzing trace with hash 889513645, now seen corresponding path program 1 times [2023-02-18 08:39:44,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:39:44,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157005729] [2023-02-18 08:39:44,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:39:44,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:39:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:39:44,684 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 08:39:44,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:39:44,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157005729] [2023-02-18 08:39:44,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157005729] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:39:44,685 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:39:44,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 08:39:44,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161205672] [2023-02-18 08:39:44,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:39:44,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 08:39:44,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:39:44,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 08:39:44,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:39:44,688 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:44,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:39:44,701 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2023-02-18 08:39:44,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 08:39:44,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-18 08:39:44,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:39:44,702 INFO L225 Difference]: With dead ends: 23 [2023-02-18 08:39:44,702 INFO L226 Difference]: Without dead ends: 22 [2023-02-18 08:39:44,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:39:44,704 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:39:44,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:39:44,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-18 08:39:44,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-18 08:39:44,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 21 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:44,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2023-02-18 08:39:44,723 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 6 [2023-02-18 08:39:44,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:39:44,723 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2023-02-18 08:39:44,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:44,723 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2023-02-18 08:39:44,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 08:39:44,724 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:39:44,724 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:39:44,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 08:39:44,724 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:39:44,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:39:44,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1805119269, now seen corresponding path program 1 times [2023-02-18 08:39:44,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:39:44,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653218868] [2023-02-18 08:39:44,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:39:44,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:39:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:39:44,754 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 08:39:44,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:39:44,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653218868] [2023-02-18 08:39:44,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653218868] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:39:44,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:39:44,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 08:39:44,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735594616] [2023-02-18 08:39:44,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:39:44,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 08:39:44,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:39:44,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 08:39:44,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:39:44,764 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:44,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:39:44,791 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2023-02-18 08:39:44,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 08:39:44,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-18 08:39:44,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:39:44,792 INFO L225 Difference]: With dead ends: 22 [2023-02-18 08:39:44,793 INFO L226 Difference]: Without dead ends: 21 [2023-02-18 08:39:44,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:39:44,794 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 11 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:39:44,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:39:44,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-02-18 08:39:44,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-02-18 08:39:44,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.4) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:44,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2023-02-18 08:39:44,802 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 7 [2023-02-18 08:39:44,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:39:44,802 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2023-02-18 08:39:44,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:44,803 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2023-02-18 08:39:44,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 08:39:44,803 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:39:44,803 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:39:44,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 08:39:44,804 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:39:44,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:39:44,808 INFO L85 PathProgramCache]: Analyzing trace with hash 124122543, now seen corresponding path program 1 times [2023-02-18 08:39:44,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:39:44,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115545969] [2023-02-18 08:39:44,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:39:44,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:39:44,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:39:44,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:39:44,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:39:44,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115545969] [2023-02-18 08:39:44,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115545969] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:39:44,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:39:44,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 08:39:44,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001381208] [2023-02-18 08:39:44,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:39:44,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 08:39:44,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:39:44,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 08:39:44,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:39:44,842 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:44,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:39:44,858 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2023-02-18 08:39:44,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 08:39:44,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-18 08:39:44,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:39:44,859 INFO L225 Difference]: With dead ends: 21 [2023-02-18 08:39:44,860 INFO L226 Difference]: Without dead ends: 20 [2023-02-18 08:39:44,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:39:44,861 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:39:44,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 10 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:39:44,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-02-18 08:39:44,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-02-18 08:39:44,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 19 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:44,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2023-02-18 08:39:44,869 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 8 [2023-02-18 08:39:44,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:39:44,869 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2023-02-18 08:39:44,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:44,869 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2023-02-18 08:39:44,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-18 08:39:44,870 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:39:44,870 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:39:44,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 08:39:44,871 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:39:44,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:39:44,875 INFO L85 PathProgramCache]: Analyzing trace with hash -447168409, now seen corresponding path program 1 times [2023-02-18 08:39:44,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:39:44,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151869858] [2023-02-18 08:39:44,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:39:44,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:39:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:39:44,901 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 08:39:44,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:39:44,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151869858] [2023-02-18 08:39:44,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151869858] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:39:44,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:39:44,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 08:39:44,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697987690] [2023-02-18 08:39:44,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:39:44,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 08:39:44,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:39:44,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 08:39:44,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:39:44,903 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:44,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:39:44,919 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2023-02-18 08:39:44,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 08:39:44,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-18 08:39:44,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:39:44,922 INFO L225 Difference]: With dead ends: 20 [2023-02-18 08:39:44,922 INFO L226 Difference]: Without dead ends: 19 [2023-02-18 08:39:44,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:39:44,926 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:39:44,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:39:44,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-02-18 08:39:44,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-02-18 08:39:44,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:44,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2023-02-18 08:39:44,929 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 9 [2023-02-18 08:39:44,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:39:44,929 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2023-02-18 08:39:44,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:44,929 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2023-02-18 08:39:44,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 08:39:44,929 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:39:44,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:39:44,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-18 08:39:44,930 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:39:44,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:39:44,930 INFO L85 PathProgramCache]: Analyzing trace with hash -977318735, now seen corresponding path program 1 times [2023-02-18 08:39:44,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:39:44,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863505817] [2023-02-18 08:39:44,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:39:44,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:39:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:39:44,961 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 08:39:44,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:39:44,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863505817] [2023-02-18 08:39:44,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863505817] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:39:44,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:39:44,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 08:39:44,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782727289] [2023-02-18 08:39:44,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:39:44,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 08:39:44,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:39:44,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 08:39:44,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:39:44,963 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:44,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:39:44,970 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2023-02-18 08:39:44,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 08:39:44,971 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-18 08:39:44,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:39:44,971 INFO L225 Difference]: With dead ends: 19 [2023-02-18 08:39:44,971 INFO L226 Difference]: Without dead ends: 18 [2023-02-18 08:39:44,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 08:39:44,972 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:39:44,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:39:44,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-18 08:39:44,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-02-18 08:39:44,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.2) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:44,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-02-18 08:39:44,974 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 10 [2023-02-18 08:39:44,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:39:44,974 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2023-02-18 08:39:44,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:44,975 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-02-18 08:39:44,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 08:39:44,975 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:39:44,975 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:39:44,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-18 08:39:44,975 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:39:44,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:39:44,976 INFO L85 PathProgramCache]: Analyzing trace with hash -232109655, now seen corresponding path program 1 times [2023-02-18 08:39:44,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:39:44,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369184105] [2023-02-18 08:39:44,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:39:44,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:39:44,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:39:45,012 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 08:39:45,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:39:45,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369184105] [2023-02-18 08:39:45,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369184105] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:39:45,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:39:45,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 08:39:45,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226251715] [2023-02-18 08:39:45,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:39:45,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 08:39:45,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:39:45,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 08:39:45,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 08:39:45,016 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:45,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:39:45,040 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2023-02-18 08:39:45,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 08:39:45,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-18 08:39:45,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:39:45,041 INFO L225 Difference]: With dead ends: 18 [2023-02-18 08:39:45,041 INFO L226 Difference]: Without dead ends: 17 [2023-02-18 08:39:45,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 08:39:45,042 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 14 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:39:45,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 8 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:39:45,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-02-18 08:39:45,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-02-18 08:39:45,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:45,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-02-18 08:39:45,045 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 11 [2023-02-18 08:39:45,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:39:45,045 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-02-18 08:39:45,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:45,046 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-02-18 08:39:45,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-18 08:39:45,046 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:39:45,046 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:39:45,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-18 08:39:45,046 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:39:45,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:39:45,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1394535347, now seen corresponding path program 1 times [2023-02-18 08:39:45,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:39:45,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451456783] [2023-02-18 08:39:45,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:39:45,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:39:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:39:45,068 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 08:39:45,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:39:45,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451456783] [2023-02-18 08:39:45,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451456783] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 08:39:45,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 08:39:45,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 08:39:45,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704108302] [2023-02-18 08:39:45,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 08:39:45,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 08:39:45,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:39:45,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 08:39:45,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 08:39:45,071 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:45,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:39:45,082 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-02-18 08:39:45,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 08:39:45,082 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-18 08:39:45,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:39:45,082 INFO L225 Difference]: With dead ends: 17 [2023-02-18 08:39:45,082 INFO L226 Difference]: Without dead ends: 16 [2023-02-18 08:39:45,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 08:39:45,083 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 10 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 7 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 08:39:45,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 7 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:39:45,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-02-18 08:39:45,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-02-18 08:39:45,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:45,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-02-18 08:39:45,085 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 12 [2023-02-18 08:39:45,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:39:45,085 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-02-18 08:39:45,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:45,085 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-02-18 08:39:45,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-18 08:39:45,086 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:39:45,086 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 08:39:45,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-18 08:39:45,086 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:39:45,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:39:45,086 INFO L85 PathProgramCache]: Analyzing trace with hash -616087973, now seen corresponding path program 1 times [2023-02-18 08:39:45,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:39:45,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487976033] [2023-02-18 08:39:45,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:39:45,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:39:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:39:45,135 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 08:39:45,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:39:45,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487976033] [2023-02-18 08:39:45,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487976033] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:39:45,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389015436] [2023-02-18 08:39:45,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:39:45,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:39:45,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:39:45,140 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 08:39:45,142 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 08:39:45,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:39:45,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-18 08:39:45,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:39:45,196 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 08:39:45,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:39:45,208 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 08:39:45,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389015436] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:39:45,208 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:39:45,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-18 08:39:45,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800926678] [2023-02-18 08:39:45,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:39:45,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 08:39:45,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:39:45,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 08:39:45,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-18 08:39:45,210 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:45,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:39:45,224 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2023-02-18 08:39:45,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 08:39:45,225 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-02-18 08:39:45,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:39:45,225 INFO L225 Difference]: With dead ends: 44 [2023-02-18 08:39:45,225 INFO L226 Difference]: Without dead ends: 43 [2023-02-18 08:39:45,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-18 08:39:45,227 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:39:45,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 41 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:39:45,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-02-18 08:39:45,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-02-18 08:39:45,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.0238095238095237) internal successors, (43), 42 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:45,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2023-02-18 08:39:45,239 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 15 [2023-02-18 08:39:45,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:39:45,240 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2023-02-18 08:39:45,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:45,240 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2023-02-18 08:39:45,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-02-18 08:39:45,241 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:39:45,241 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-02-18 08:39:45,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 08:39:45,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:39:45,446 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:39:45,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:39:45,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1635581485, now seen corresponding path program 2 times [2023-02-18 08:39:45,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:39:45,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218108615] [2023-02-18 08:39:45,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:39:45,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:39:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:39:45,522 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:39:45,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:39:45,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218108615] [2023-02-18 08:39:45,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218108615] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:39:45,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379464337] [2023-02-18 08:39:45,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 08:39:45,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:39:45,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:39:45,523 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 08:39:45,544 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 08:39:45,556 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 08:39:45,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:39:45,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-18 08:39:45,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:39:45,580 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:39:45,580 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:39:45,617 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:39:45,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379464337] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:39:45,617 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:39:45,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-18 08:39:45,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482542017] [2023-02-18 08:39:45,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:39:45,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 08:39:45,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:39:45,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 08:39:45,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-18 08:39:45,619 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:45,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:39:45,644 INFO L93 Difference]: Finished difference Result 98 states and 103 transitions. [2023-02-18 08:39:45,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-18 08:39:45,644 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2023-02-18 08:39:45,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:39:45,645 INFO L225 Difference]: With dead ends: 98 [2023-02-18 08:39:45,645 INFO L226 Difference]: Without dead ends: 97 [2023-02-18 08:39:45,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 74 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-18 08:39:45,645 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:39:45,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 83 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:39:45,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-02-18 08:39:45,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-02-18 08:39:45,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.0104166666666667) internal successors, (97), 96 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:45,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 97 transitions. [2023-02-18 08:39:45,650 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 97 transitions. Word has length 42 [2023-02-18 08:39:45,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:39:45,650 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 97 transitions. [2023-02-18 08:39:45,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.545454545454546) internal successors, (83), 12 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:45,650 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 97 transitions. [2023-02-18 08:39:45,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-02-18 08:39:45,652 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:39:45,652 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2023-02-18 08:39:45,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-18 08:39:45,866 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,SelfDestructingSolverStorable9 [2023-02-18 08:39:45,866 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:39:45,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:39:45,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1587652243, now seen corresponding path program 3 times [2023-02-18 08:39:45,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:39:45,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724109936] [2023-02-18 08:39:45,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:39:45,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:39:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:39:46,049 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:39:46,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:39:46,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724109936] [2023-02-18 08:39:46,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724109936] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:39:46,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523351311] [2023-02-18 08:39:46,050 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 08:39:46,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:39:46,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:39:46,055 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 08:39:46,057 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 08:39:46,106 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-18 08:39:46,106 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:39:46,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 08:39:46,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:39:46,191 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:39:46,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:39:46,325 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:39:46,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523351311] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:39:46,325 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:39:46,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-18 08:39:46,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451168538] [2023-02-18 08:39:46,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:39:46,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 08:39:46,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:39:46,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 08:39:46,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-18 08:39:46,328 INFO L87 Difference]: Start difference. First operand 97 states and 97 transitions. Second operand has 24 states, 23 states have (on average 8.304347826086957) internal successors, (191), 24 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:46,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:39:46,380 INFO L93 Difference]: Finished difference Result 206 states and 217 transitions. [2023-02-18 08:39:46,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-18 08:39:46,381 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 8.304347826086957) internal successors, (191), 24 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2023-02-18 08:39:46,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:39:46,384 INFO L225 Difference]: With dead ends: 206 [2023-02-18 08:39:46,384 INFO L226 Difference]: Without dead ends: 205 [2023-02-18 08:39:46,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 170 SyntacticMatches, 10 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-18 08:39:46,385 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 08:39:46,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 167 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 08:39:46,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-02-18 08:39:46,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2023-02-18 08:39:46,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.0049019607843137) internal successors, (205), 204 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:46,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 205 transitions. [2023-02-18 08:39:46,397 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 205 transitions. Word has length 96 [2023-02-18 08:39:46,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:39:46,398 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 205 transitions. [2023-02-18 08:39:46,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 8.304347826086957) internal successors, (191), 24 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:46,398 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 205 transitions. [2023-02-18 08:39:46,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-02-18 08:39:46,400 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:39:46,400 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2023-02-18 08:39:46,410 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 08:39:46,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:39:46,605 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:39:46,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:39:46,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1541521427, now seen corresponding path program 4 times [2023-02-18 08:39:46,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:39:46,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454311945] [2023-02-18 08:39:46,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:39:46,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:39:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:39:47,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:39:47,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:39:47,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454311945] [2023-02-18 08:39:47,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454311945] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:39:47,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138829961] [2023-02-18 08:39:47,132 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 08:39:47,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:39:47,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:39:47,133 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 08:39:47,135 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 08:39:47,189 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 08:39:47,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:39:47,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-18 08:39:47,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:39:47,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:39:47,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:39:48,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 2145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:39:48,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138829961] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:39:48,016 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:39:48,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-18 08:39:48,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544486553] [2023-02-18 08:39:48,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:39:48,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-18 08:39:48,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:39:48,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-18 08:39:48,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 08:39:48,018 INFO L87 Difference]: Start difference. First operand 205 states and 205 transitions. Second operand has 48 states, 47 states have (on average 8.659574468085106) internal successors, (407), 48 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:48,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:39:48,143 INFO L93 Difference]: Finished difference Result 422 states and 445 transitions. [2023-02-18 08:39:48,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-18 08:39:48,144 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 8.659574468085106) internal successors, (407), 48 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 204 [2023-02-18 08:39:48,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:39:48,145 INFO L225 Difference]: With dead ends: 422 [2023-02-18 08:39:48,145 INFO L226 Difference]: Without dead ends: 421 [2023-02-18 08:39:48,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 362 SyntacticMatches, 22 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 08:39:48,147 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 08:39:48,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 339 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 08:39:48,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2023-02-18 08:39:48,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2023-02-18 08:39:48,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.0023809523809524) internal successors, (421), 420 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:48,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 421 transitions. [2023-02-18 08:39:48,162 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 421 transitions. Word has length 204 [2023-02-18 08:39:48,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:39:48,162 INFO L495 AbstractCegarLoop]: Abstraction has 421 states and 421 transitions. [2023-02-18 08:39:48,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 8.659574468085106) internal successors, (407), 48 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:48,163 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 421 transitions. [2023-02-18 08:39:48,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2023-02-18 08:39:48,166 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:39:48,166 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1] [2023-02-18 08:39:48,187 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 08:39:48,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:39:48,371 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:39:48,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:39:48,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1052953837, now seen corresponding path program 5 times [2023-02-18 08:39:48,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:39:48,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278485050] [2023-02-18 08:39:48,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:39:48,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:39:48,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:39:50,134 INFO L134 CoverageAnalysis]: Checked inductivity of 9453 backedges. 0 proven. 9453 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:39:50,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:39:50,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278485050] [2023-02-18 08:39:50,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278485050] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:39:50,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404503428] [2023-02-18 08:39:50,135 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 08:39:50,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:39:50,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:39:50,137 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 08:39:50,152 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 08:39:50,257 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-18 08:39:50,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:39:50,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-18 08:39:50,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:39:50,970 INFO L134 CoverageAnalysis]: Checked inductivity of 9453 backedges. 0 proven. 9453 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:39:50,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:39:53,075 INFO L134 CoverageAnalysis]: Checked inductivity of 9453 backedges. 0 proven. 9453 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:39:53,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404503428] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:39:53,076 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:39:53,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-18 08:39:53,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403675925] [2023-02-18 08:39:53,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:39:53,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-18 08:39:53,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:39:53,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-18 08:39:53,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-18 08:39:53,082 INFO L87 Difference]: Start difference. First operand 421 states and 421 transitions. Second operand has 96 states, 95 states have (on average 8.83157894736842) internal successors, (839), 96 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:53,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:39:53,370 INFO L93 Difference]: Finished difference Result 854 states and 901 transitions. [2023-02-18 08:39:53,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-18 08:39:53,370 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 8.83157894736842) internal successors, (839), 96 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 420 [2023-02-18 08:39:53,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:39:53,374 INFO L225 Difference]: With dead ends: 854 [2023-02-18 08:39:53,374 INFO L226 Difference]: Without dead ends: 853 [2023-02-18 08:39:53,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 886 GetRequests, 746 SyntacticMatches, 46 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-18 08:39:53,377 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 676 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 08:39:53,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 676 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 08:39:53,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2023-02-18 08:39:53,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 853. [2023-02-18 08:39:53,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 852 states have (on average 1.0011737089201878) internal successors, (853), 852 states have internal predecessors, (853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:53,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 853 transitions. [2023-02-18 08:39:53,387 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 853 transitions. Word has length 420 [2023-02-18 08:39:53,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:39:53,388 INFO L495 AbstractCegarLoop]: Abstraction has 853 states and 853 transitions. [2023-02-18 08:39:53,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 8.83157894736842) internal successors, (839), 96 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:39:53,388 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 853 transitions. [2023-02-18 08:39:53,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 853 [2023-02-18 08:39:53,398 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:39:53,399 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 94, 94, 1, 1, 1, 1] [2023-02-18 08:39:53,406 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 08:39:53,608 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,SelfDestructingSolverStorable12 [2023-02-18 08:39:53,608 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:39:53,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:39:53,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1709250835, now seen corresponding path program 6 times [2023-02-18 08:39:53,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:39:53,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176880863] [2023-02-18 08:39:53,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:39:53,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:39:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:39:59,587 INFO L134 CoverageAnalysis]: Checked inductivity of 39621 backedges. 0 proven. 39621 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:39:59,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:39:59,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176880863] [2023-02-18 08:39:59,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176880863] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:39:59,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121947306] [2023-02-18 08:39:59,588 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 08:39:59,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:39:59,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:39:59,589 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 08:39:59,590 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 08:39:59,841 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-18 08:39:59,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:39:59,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-18 08:39:59,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:40:02,489 INFO L134 CoverageAnalysis]: Checked inductivity of 39621 backedges. 0 proven. 39621 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:40:02,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:40:10,179 INFO L134 CoverageAnalysis]: Checked inductivity of 39621 backedges. 0 proven. 39621 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:40:10,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121947306] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:40:10,179 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:40:10,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-18 08:40:10,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689181069] [2023-02-18 08:40:10,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:40:10,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-18 08:40:10,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:40:10,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-18 08:40:10,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-18 08:40:10,197 INFO L87 Difference]: Start difference. First operand 853 states and 853 transitions. Second operand has 192 states, 191 states have (on average 8.916230366492147) internal successors, (1703), 192 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:40:11,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:40:11,830 INFO L93 Difference]: Finished difference Result 1718 states and 1813 transitions. [2023-02-18 08:40:11,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-18 08:40:11,831 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 8.916230366492147) internal successors, (1703), 192 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 852 [2023-02-18 08:40:11,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:40:11,835 INFO L225 Difference]: With dead ends: 1718 [2023-02-18 08:40:11,835 INFO L226 Difference]: Without dead ends: 1717 [2023-02-18 08:40:11,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1798 GetRequests, 1514 SyntacticMatches, 94 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4371 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-18 08:40:11,839 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1348 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 08:40:11,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1348 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 08:40:11,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2023-02-18 08:40:11,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1717. [2023-02-18 08:40:11,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1717 states, 1716 states have (on average 1.0005827505827505) internal successors, (1717), 1716 states have internal predecessors, (1717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:40:11,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1717 states to 1717 states and 1717 transitions. [2023-02-18 08:40:11,858 INFO L78 Accepts]: Start accepts. Automaton has 1717 states and 1717 transitions. Word has length 852 [2023-02-18 08:40:11,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:40:11,859 INFO L495 AbstractCegarLoop]: Abstraction has 1717 states and 1717 transitions. [2023-02-18 08:40:11,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 8.916230366492147) internal successors, (1703), 192 states have internal predecessors, (1703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:40:11,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1717 states and 1717 transitions. [2023-02-18 08:40:11,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1717 [2023-02-18 08:40:11,899 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:40:11,899 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 190, 190, 190, 190, 1, 1, 1, 1] [2023-02-18 08:40:11,905 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 08:40:12,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:40:12,105 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:40:12,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:40:12,109 INFO L85 PathProgramCache]: Analyzing trace with hash -182248723, now seen corresponding path program 7 times [2023-02-18 08:40:12,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:40:12,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109438092] [2023-02-18 08:40:12,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:40:12,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:40:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:40:40,032 INFO L134 CoverageAnalysis]: Checked inductivity of 162165 backedges. 0 proven. 162165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:40:40,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:40:40,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109438092] [2023-02-18 08:40:40,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109438092] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:40:40,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641881479] [2023-02-18 08:40:40,032 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 08:40:40,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:40:40,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:40:40,033 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 08:40:40,034 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 08:40:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:40:40,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 2674 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-18 08:40:40,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:40:50,439 INFO L134 CoverageAnalysis]: Checked inductivity of 162165 backedges. 0 proven. 162165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:40:50,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:41:20,724 INFO L134 CoverageAnalysis]: Checked inductivity of 162165 backedges. 0 proven. 162165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:41:20,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641881479] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:41:20,725 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:41:20,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-02-18 08:41:20,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314500840] [2023-02-18 08:41:20,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:41:20,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-02-18 08:41:20,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:41:20,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-02-18 08:41:20,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-18 08:41:20,750 INFO L87 Difference]: Start difference. First operand 1717 states and 1717 transitions. Second operand has 384 states, 383 states have (on average 8.95822454308094) internal successors, (3431), 384 states have internal predecessors, (3431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:41:28,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:41:28,329 INFO L93 Difference]: Finished difference Result 3446 states and 3637 transitions. [2023-02-18 08:41:28,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-02-18 08:41:28,331 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 8.95822454308094) internal successors, (3431), 384 states have internal predecessors, (3431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1716 [2023-02-18 08:41:28,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:41:28,339 INFO L225 Difference]: With dead ends: 3446 [2023-02-18 08:41:28,339 INFO L226 Difference]: Without dead ends: 3445 [2023-02-18 08:41:28,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3622 GetRequests, 3050 SyntacticMatches, 190 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17955 ImplicationChecksByTransitivity, 49.7s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-18 08:41:28,345 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-18 08:41:28,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2689 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-18 08:41:28,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3445 states. [2023-02-18 08:41:28,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3445 to 3445. [2023-02-18 08:41:28,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3445 states, 3444 states have (on average 1.0002903600464577) internal successors, (3445), 3444 states have internal predecessors, (3445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:41:28,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3445 states to 3445 states and 3445 transitions. [2023-02-18 08:41:28,381 INFO L78 Accepts]: Start accepts. Automaton has 3445 states and 3445 transitions. Word has length 1716 [2023-02-18 08:41:28,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:41:28,382 INFO L495 AbstractCegarLoop]: Abstraction has 3445 states and 3445 transitions. [2023-02-18 08:41:28,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 8.95822454308094) internal successors, (3431), 384 states have internal predecessors, (3431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:41:28,384 INFO L276 IsEmpty]: Start isEmpty. Operand 3445 states and 3445 transitions. [2023-02-18 08:41:28,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3445 [2023-02-18 08:41:28,441 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:41:28,442 INFO L195 NwaCegarLoop]: trace histogram [383, 383, 382, 382, 382, 382, 382, 382, 382, 1, 1, 1, 1] [2023-02-18 08:41:28,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-18 08:41:28,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:41:28,645 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:41:28,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:41:28,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1671724307, now seen corresponding path program 8 times [2023-02-18 08:41:28,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:41:28,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268846854] [2023-02-18 08:41:28,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:41:28,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:41:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:44:20,604 INFO L134 CoverageAnalysis]: Checked inductivity of 656085 backedges. 0 proven. 656085 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:44:20,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 08:44:20,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268846854] [2023-02-18 08:44:20,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268846854] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 08:44:20,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939352723] [2023-02-18 08:44:20,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 08:44:20,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 08:44:20,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:44:20,607 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 08:44:20,607 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 08:44:21,313 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 08:44:21,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 08:44:21,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 5362 conjuncts, 384 conjunts are in the unsatisfiable core [2023-02-18 08:44:21,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:45:01,166 INFO L134 CoverageAnalysis]: Checked inductivity of 656085 backedges. 0 proven. 656085 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:45:01,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 08:47:01,868 INFO L134 CoverageAnalysis]: Checked inductivity of 656085 backedges. 0 proven. 656085 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:47:01,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939352723] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 08:47:01,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 08:47:01,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [384, 384, 384] total 767 [2023-02-18 08:47:01,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971641165] [2023-02-18 08:47:01,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 08:47:01,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 768 states [2023-02-18 08:47:01,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 08:47:01,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 768 interpolants. [2023-02-18 08:47:01,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294528, Invalid=294528, Unknown=0, NotChecked=0, Total=589056 [2023-02-18 08:47:01,929 INFO L87 Difference]: Start difference. First operand 3445 states and 3445 transitions. Second operand has 768 states, 767 states have (on average 8.979139504563234) internal successors, (6887), 768 states have internal predecessors, (6887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:48:14,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 08:48:14,414 INFO L93 Difference]: Finished difference Result 6902 states and 7285 transitions. [2023-02-18 08:48:14,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 768 states. [2023-02-18 08:48:14,417 INFO L78 Accepts]: Start accepts. Automaton has has 768 states, 767 states have (on average 8.979139504563234) internal successors, (6887), 768 states have internal predecessors, (6887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3444 [2023-02-18 08:48:14,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 08:48:14,431 INFO L225 Difference]: With dead ends: 6902 [2023-02-18 08:48:14,431 INFO L226 Difference]: Without dead ends: 6901 [2023-02-18 08:48:14,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7270 GetRequests, 6122 SyntacticMatches, 382 SemanticMatches, 766 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72771 ImplicationChecksByTransitivity, 198.4s TimeCoverageRelationStatistics Valid=294528, Invalid=294528, Unknown=0, NotChecked=0, Total=589056 [2023-02-18 08:48:14,455 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 5370 mSDsCounter, 0 mSdLazyCounter, 1542 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5381 SdHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-02-18 08:48:14,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5381 Invalid, 1543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1542 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-02-18 08:48:14,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6901 states. [2023-02-18 08:48:14,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6901 to 6901. [2023-02-18 08:48:14,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6901 states, 6900 states have (on average 1.000144927536232) internal successors, (6901), 6900 states have internal predecessors, (6901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:48:14,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6901 states to 6901 states and 6901 transitions. [2023-02-18 08:48:14,521 INFO L78 Accepts]: Start accepts. Automaton has 6901 states and 6901 transitions. Word has length 3444 [2023-02-18 08:48:14,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 08:48:14,523 INFO L495 AbstractCegarLoop]: Abstraction has 6901 states and 6901 transitions. [2023-02-18 08:48:14,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 768 states, 767 states have (on average 8.979139504563234) internal successors, (6887), 768 states have internal predecessors, (6887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:48:14,525 INFO L276 IsEmpty]: Start isEmpty. Operand 6901 states and 6901 transitions. [2023-02-18 08:48:14,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6901 [2023-02-18 08:48:14,780 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 08:48:14,781 INFO L195 NwaCegarLoop]: trace histogram [767, 767, 766, 766, 766, 766, 766, 766, 766, 1, 1, 1, 1] [2023-02-18 08:48:14,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-18 08:48:14,981 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,SelfDestructingSolverStorable15 [2023-02-18 08:48:14,982 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-18 08:48:14,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:48:14,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1349758227, now seen corresponding path program 9 times [2023-02-18 08:48:14,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:48:14,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291670743] [2023-02-18 08:48:14,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:48:14,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:48:17,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat