./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3dbbec33 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-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.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 d7a26ac99d24cf78f342a00198534968a8c9a8e19670213e333d305f9460bd44 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3dbbec3 [2023-02-14 14:23:19,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 14:23:19,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 14:23:19,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 14:23:19,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 14:23:19,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 14:23:19,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 14:23:19,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 14:23:19,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 14:23:19,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 14:23:19,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 14:23:19,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 14:23:19,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 14:23:19,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 14:23:19,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 14:23:19,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 14:23:19,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 14:23:19,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 14:23:19,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 14:23:19,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 14:23:19,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 14:23:19,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 14:23:19,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 14:23:19,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 14:23:19,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 14:23:19,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 14:23:19,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 14:23:19,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 14:23:19,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 14:23:19,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 14:23:19,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 14:23:19,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 14:23:19,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 14:23:19,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 14:23:19,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 14:23:19,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 14:23:19,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 14:23:19,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 14:23:19,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 14:23:19,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 14:23:19,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 14:23:19,299 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-14 14:23:19,325 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 14:23:19,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 14:23:19,325 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 14:23:19,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 14:23:19,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 14:23:19,326 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 14:23:19,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 14:23:19,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 14:23:19,327 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 14:23:19,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 14:23:19,328 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 14:23:19,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 14:23:19,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 14:23:19,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 14:23:19,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 14:23:19,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 14:23:19,329 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-14 14:23:19,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 14:23:19,329 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 14:23:19,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 14:23:19,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 14:23:19,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 14:23:19,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 14:23:19,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 14:23:19,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 14:23:19,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 14:23:19,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 14:23:19,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 14:23:19,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-14 14:23:19,331 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 14:23:19,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 14:23:19,331 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 14:23:19,332 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 14:23:19,332 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 14:23:19,332 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7a26ac99d24cf78f342a00198534968a8c9a8e19670213e333d305f9460bd44 [2023-02-14 14:23:19,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 14:23:19,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 14:23:19,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 14:23:19,698 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 14:23:19,699 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 14:23:19,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c [2023-02-14 14:23:20,877 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 14:23:21,022 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 14:23:21,023 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy2-1.c [2023-02-14 14:23:21,027 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9732c16f/e5c62e1f24404229bf705cf3c6ce91f6/FLAG34f053d9c [2023-02-14 14:23:21,042 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9732c16f/e5c62e1f24404229bf705cf3c6ce91f6 [2023-02-14 14:23:21,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 14:23:21,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 14:23:21,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 14:23:21,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 14:23:21,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 14:23:21,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:23:21" (1/1) ... [2023-02-14 14:23:21,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56224b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:23:21, skipping insertion in model container [2023-02-14 14:23:21,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:23:21" (1/1) ... [2023-02-14 14:23:21,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 14:23:21,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 14:23:21,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:23:21,191 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 14:23:21,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:23:21,205 INFO L208 MainTranslator]: Completed translation [2023-02-14 14:23:21,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:23:21 WrapperNode [2023-02-14 14:23:21,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 14:23:21,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 14:23:21,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 14:23:21,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 14:23:21,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:23:21" (1/1) ... [2023-02-14 14:23:21,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:23:21" (1/1) ... [2023-02-14 14:23:21,235 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2023-02-14 14:23:21,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 14:23:21,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 14:23:21,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 14:23:21,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 14:23:21,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:23:21" (1/1) ... [2023-02-14 14:23:21,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:23:21" (1/1) ... [2023-02-14 14:23:21,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:23:21" (1/1) ... [2023-02-14 14:23:21,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:23:21" (1/1) ... [2023-02-14 14:23:21,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:23:21" (1/1) ... [2023-02-14 14:23:21,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:23:21" (1/1) ... [2023-02-14 14:23:21,257 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:23:21" (1/1) ... [2023-02-14 14:23:21,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:23:21" (1/1) ... [2023-02-14 14:23:21,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 14:23:21,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 14:23:21,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 14:23:21,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 14:23:21,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:23:21" (1/1) ... [2023-02-14 14:23:21,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 14:23:21,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:23:21,313 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) [2023-02-14 14:23:21,316 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 [2023-02-14 14:23:21,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 14:23:21,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 14:23:21,392 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 14:23:21,393 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 14:23:21,479 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 14:23:21,488 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 14:23:21,488 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-14 14:23:21,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:23:21 BoogieIcfgContainer [2023-02-14 14:23:21,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 14:23:21,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 14:23:21,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 14:23:21,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 14:23:21,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 02:23:21" (1/3) ... [2023-02-14 14:23:21,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f9e3fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:23:21, skipping insertion in model container [2023-02-14 14:23:21,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:23:21" (2/3) ... [2023-02-14 14:23:21,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f9e3fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:23:21, skipping insertion in model container [2023-02-14 14:23:21,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:23:21" (3/3) ... [2023-02-14 14:23:21,495 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-easy2-1.c [2023-02-14 14:23:21,512 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 14:23:21,512 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-14 14:23:21,598 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 14:23:21,604 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;@2d88d355, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 14:23:21,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-14 14:23:21,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 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) [2023-02-14 14:23:21,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-02-14 14:23:21,631 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:23:21,631 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-02-14 14:23:21,632 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:23:21,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:23:21,637 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2023-02-14 14:23:21,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:23:21,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911513954] [2023-02-14 14:23:21,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:21,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:23:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:21,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:21,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:23:21,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911513954] [2023-02-14 14:23:21,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911513954] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:23:21,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:23:21,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:23:21,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540686243] [2023-02-14 14:23:21,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:23:21,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:23:21,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:23:21,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:23:21,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:23:21,900 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 18 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) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-02-14 14:23:21,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:23:21,929 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2023-02-14 14:23:21,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:23:21,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-02-14 14:23:21,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:23:21,936 INFO L225 Difference]: With dead ends: 23 [2023-02-14 14:23:21,937 INFO L226 Difference]: Without dead ends: 14 [2023-02-14 14:23:21,940 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 [2023-02-14 14:23:21,943 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 16 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 [2023-02-14 14:23:21,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 16 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:23:21,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-02-14 14:23:21,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-02-14 14:23:21,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:23:21,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-02-14 14:23:21,967 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 4 [2023-02-14 14:23:21,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:23:21,967 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-02-14 14:23:21,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-02-14 14:23:21,968 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-02-14 14:23:21,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-14 14:23:21,968 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:23:21,968 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-14 14:23:21,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-14 14:23:21,970 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:23:21,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:23:21,971 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2023-02-14 14:23:21,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:23:21,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948134592] [2023-02-14 14:23:21,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:21,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:23:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:22,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:22,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:23:22,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948134592] [2023-02-14 14:23:22,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948134592] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:23:22,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:23:22,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:23:22,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256104877] [2023-02-14 14:23:22,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:23:22,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:23:22,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:23:22,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:23:22,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:23:22,034 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. 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) [2023-02-14 14:23:22,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:23:22,041 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2023-02-14 14:23:22,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:23:22,041 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 [2023-02-14 14:23:22,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:23:22,042 INFO L225 Difference]: With dead ends: 18 [2023-02-14 14:23:22,042 INFO L226 Difference]: Without dead ends: 17 [2023-02-14 14:23:22,042 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 [2023-02-14 14:23:22,043 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 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 [2023-02-14 14:23:22,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:23:22,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-02-14 14:23:22,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-02-14 14:23:22,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.4166666666666667) 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) [2023-02-14 14:23:22,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-02-14 14:23:22,051 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 5 [2023-02-14 14:23:22,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:23:22,052 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-02-14 14:23:22,052 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) [2023-02-14 14:23:22,052 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-02-14 14:23:22,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-14 14:23:22,052 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:23:22,053 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-14 14:23:22,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-14 14:23:22,053 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:23:22,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:23:22,054 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2023-02-14 14:23:22,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:23:22,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558798334] [2023-02-14 14:23:22,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:22,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:23:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:22,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:22,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:23:22,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558798334] [2023-02-14 14:23:22,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558798334] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:23:22,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:23:22,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:23:22,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114547913] [2023-02-14 14:23:22,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:23:22,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:23:22,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:23:22,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:23:22,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:23:22,081 INFO L87 Difference]: Start difference. First operand 17 states and 17 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) [2023-02-14 14:23:22,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:23:22,101 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2023-02-14 14:23:22,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:23:22,102 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 [2023-02-14 14:23:22,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:23:22,102 INFO L225 Difference]: With dead ends: 20 [2023-02-14 14:23:22,102 INFO L226 Difference]: Without dead ends: 19 [2023-02-14 14:23:22,103 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 [2023-02-14 14:23:22,103 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:23:22,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 20 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:23:22,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-02-14 14:23:22,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2023-02-14 14:23:22,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3846153846153846) 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) [2023-02-14 14:23:22,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-02-14 14:23:22,108 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 6 [2023-02-14 14:23:22,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:23:22,109 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2023-02-14 14:23:22,109 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) [2023-02-14 14:23:22,110 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-02-14 14:23:22,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-14 14:23:22,110 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:23:22,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:23:22,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-14 14:23:22,111 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:23:22,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:23:22,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times [2023-02-14 14:23:22,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:23:22,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140624015] [2023-02-14 14:23:22,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:22,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:23:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:22,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:22,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:23:22,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140624015] [2023-02-14 14:23:22,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140624015] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:23:22,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:23:22,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:23:22,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787897759] [2023-02-14 14:23:22,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:23:22,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:23:22,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:23:22,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:23:22,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:23:22,159 INFO L87 Difference]: Start difference. First operand 18 states and 18 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) [2023-02-14 14:23:22,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:23:22,172 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2023-02-14 14:23:22,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:23:22,172 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 [2023-02-14 14:23:22,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:23:22,173 INFO L225 Difference]: With dead ends: 18 [2023-02-14 14:23:22,173 INFO L226 Difference]: Without dead ends: 17 [2023-02-14 14:23:22,173 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 [2023-02-14 14:23:22,174 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 11 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 [2023-02-14 14:23:22,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:23:22,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-02-14 14:23:22,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-02-14 14:23:22,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) 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) [2023-02-14 14:23:22,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-02-14 14:23:22,181 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2023-02-14 14:23:22,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:23:22,182 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-02-14 14:23:22,182 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) [2023-02-14 14:23:22,182 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-02-14 14:23:22,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-14 14:23:22,183 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:23:22,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:23:22,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-14 14:23:22,183 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:23:22,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:23:22,184 INFO L85 PathProgramCache]: Analyzing trace with hash 294943144, now seen corresponding path program 1 times [2023-02-14 14:23:22,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:23:22,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732837949] [2023-02-14 14:23:22,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:22,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:23:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:22,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:22,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:23:22,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732837949] [2023-02-14 14:23:22,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732837949] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:23:22,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:23:22,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:23:22,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780290991] [2023-02-14 14:23:22,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:23:22,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:23:22,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:23:22,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:23:22,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:23:22,228 INFO L87 Difference]: Start difference. First operand 17 states and 17 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) [2023-02-14 14:23:22,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:23:22,252 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-02-14 14:23:22,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:23:22,253 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 [2023-02-14 14:23:22,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:23:22,254 INFO L225 Difference]: With dead ends: 17 [2023-02-14 14:23:22,254 INFO L226 Difference]: Without dead ends: 16 [2023-02-14 14:23:22,255 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 [2023-02-14 14:23:22,256 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 10 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 [2023-02-14 14:23:22,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 10 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:23:22,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-02-14 14:23:22,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-02-14 14:23:22,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) 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) [2023-02-14 14:23:22,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-02-14 14:23:22,276 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 8 [2023-02-14 14:23:22,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:23:22,276 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-02-14 14:23:22,276 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) [2023-02-14 14:23:22,276 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-02-14 14:23:22,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-14 14:23:22,277 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:23:22,277 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:23:22,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-14 14:23:22,277 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:23:22,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:23:22,279 INFO L85 PathProgramCache]: Analyzing trace with hash 553302925, now seen corresponding path program 1 times [2023-02-14 14:23:22,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:23:22,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547424553] [2023-02-14 14:23:22,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:22,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:23:22,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:22,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:22,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:23:22,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547424553] [2023-02-14 14:23:22,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547424553] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:23:22,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:23:22,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 14:23:22,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929801801] [2023-02-14 14:23:22,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:23:22,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 14:23:22,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:23:22,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 14:23:22,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 14:23:22,331 INFO L87 Difference]: Start difference. First operand 16 states and 16 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) [2023-02-14 14:23:22,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:23:22,343 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2023-02-14 14:23:22,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 14:23:22,344 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 [2023-02-14 14:23:22,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:23:22,345 INFO L225 Difference]: With dead ends: 16 [2023-02-14 14:23:22,345 INFO L226 Difference]: Without dead ends: 15 [2023-02-14 14:23:22,345 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 [2023-02-14 14:23:22,346 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 9 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 [2023-02-14 14:23:22,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 9 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:23:22,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-14 14:23:22,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-02-14 14:23:22,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:23:22,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-02-14 14:23:22,354 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 9 [2023-02-14 14:23:22,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:23:22,354 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-02-14 14:23:22,354 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) [2023-02-14 14:23:22,354 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-02-14 14:23:22,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-14 14:23:22,355 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:23:22,355 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:23:22,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-14 14:23:22,355 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:23:22,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:23:22,356 INFO L85 PathProgramCache]: Analyzing trace with hash -637002594, now seen corresponding path program 1 times [2023-02-14 14:23:22,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:23:22,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801337952] [2023-02-14 14:23:22,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:22,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:23:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:22,417 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:22,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:23:22,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801337952] [2023-02-14 14:23:22,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801337952] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:23:22,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718009257] [2023-02-14 14:23:22,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:22,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:23:22,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:23:22,423 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) [2023-02-14 14:23:22,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-14 14:23:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:22,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 14:23:22,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:23:22,532 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:22,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:23:22,606 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:22,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718009257] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:23:22,606 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:23:22,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-14 14:23:22,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818069376] [2023-02-14 14:23:22,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:23:22,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-14 14:23:22,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:23:22,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-14 14:23:22,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-14 14:23:22,608 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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) [2023-02-14 14:23:22,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:23:22,628 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2023-02-14 14:23:22,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 14:23:22,629 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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 [2023-02-14 14:23:22,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:23:22,629 INFO L225 Difference]: With dead ends: 38 [2023-02-14 14:23:22,629 INFO L226 Difference]: Without dead ends: 37 [2023-02-14 14:23:22,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-14 14:23:22,636 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 6 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:23:22,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 35 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:23:22,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-02-14 14:23:22,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2023-02-14 14:23:22,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.121212121212121) internal successors, (37), 34 states have internal predecessors, (37), 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) [2023-02-14 14:23:22,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2023-02-14 14:23:22,642 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 12 [2023-02-14 14:23:22,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:23:22,642 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2023-02-14 14:23:22,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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) [2023-02-14 14:23:22,642 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2023-02-14 14:23:22,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-14 14:23:22,643 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:23:22,643 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:23:22,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-14 14:23:22,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:23:22,854 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:23:22,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:23:22,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1727756113, now seen corresponding path program 1 times [2023-02-14 14:23:22,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:23:22,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073849087] [2023-02-14 14:23:22,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:22,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:23:22,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:22,938 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:22,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:23:22,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073849087] [2023-02-14 14:23:22,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073849087] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:23:22,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071085987] [2023-02-14 14:23:22,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:22,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:23:22,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:23:22,942 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) [2023-02-14 14:23:22,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-14 14:23:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:22,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 14:23:22,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:23:22,979 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:22,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:23:23,004 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:23,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071085987] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:23:23,004 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:23:23,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-14 14:23:23,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316922252] [2023-02-14 14:23:23,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:23:23,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-14 14:23:23,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:23:23,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-14 14:23:23,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-14 14:23:23,006 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2023-02-14 14:23:23,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:23:23,020 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2023-02-14 14:23:23,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 14:23:23,021 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-02-14 14:23:23,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:23:23,021 INFO L225 Difference]: With dead ends: 37 [2023-02-14 14:23:23,021 INFO L226 Difference]: Without dead ends: 36 [2023-02-14 14:23:23,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-14 14:23:23,022 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:23:23,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 33 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:23:23,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-14 14:23:23,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-02-14 14:23:23,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 35 states have internal predecessors, (36), 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) [2023-02-14 14:23:23,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2023-02-14 14:23:23,026 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 13 [2023-02-14 14:23:23,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:23:23,027 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2023-02-14 14:23:23,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 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) [2023-02-14 14:23:23,027 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2023-02-14 14:23:23,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-02-14 14:23:23,028 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:23:23,028 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1] [2023-02-14 14:23:23,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-14 14:23:23,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-02-14 14:23:23,233 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:23:23,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:23:23,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1634791159, now seen corresponding path program 2 times [2023-02-14 14:23:23,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:23:23,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49782777] [2023-02-14 14:23:23,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:23,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:23:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:23,311 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:23,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:23:23,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49782777] [2023-02-14 14:23:23,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49782777] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:23:23,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541747074] [2023-02-14 14:23:23,312 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-14 14:23:23,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:23:23,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:23:23,313 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) [2023-02-14 14:23:23,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-14 14:23:23,354 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-14 14:23:23,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:23:23,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-14 14:23:23,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:23:23,422 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:23,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:23:23,510 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:23,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541747074] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:23:23,510 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:23:23,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-14 14:23:23,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665603063] [2023-02-14 14:23:23,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:23:23,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-14 14:23:23,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:23:23,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-14 14:23:23,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-14 14:23:23,515 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 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) [2023-02-14 14:23:23,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:23:23,556 INFO L93 Difference]: Finished difference Result 83 states and 88 transitions. [2023-02-14 14:23:23,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-14 14:23:23,557 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 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 33 [2023-02-14 14:23:23,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:23:23,558 INFO L225 Difference]: With dead ends: 83 [2023-02-14 14:23:23,558 INFO L226 Difference]: Without dead ends: 82 [2023-02-14 14:23:23,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-14 14:23:23,559 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 69 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 [2023-02-14 14:23:23,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 69 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:23:23,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-02-14 14:23:23,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 77. [2023-02-14 14:23:23,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 75 states have (on average 1.0933333333333333) internal successors, (82), 76 states have internal predecessors, (82), 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) [2023-02-14 14:23:23,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2023-02-14 14:23:23,566 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 33 [2023-02-14 14:23:23,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:23:23,566 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2023-02-14 14:23:23,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 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) [2023-02-14 14:23:23,567 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2023-02-14 14:23:23,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-14 14:23:23,567 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:23:23,567 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1, 1] [2023-02-14 14:23:23,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-14 14:23:23,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:23:23,772 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:23:23,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:23:23,773 INFO L85 PathProgramCache]: Analyzing trace with hash 861081670, now seen corresponding path program 2 times [2023-02-14 14:23:23,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:23:23,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953989561] [2023-02-14 14:23:23,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:23,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:23:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:23,859 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:23,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:23:23,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953989561] [2023-02-14 14:23:23,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953989561] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:23:23,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733980428] [2023-02-14 14:23:23,865 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-14 14:23:23,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:23:23,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:23:23,868 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) [2023-02-14 14:23:23,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-14 14:23:23,910 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-14 14:23:23,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:23:23,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-14 14:23:23,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:23:23,968 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:23,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:23:24,044 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:24,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733980428] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:23:24,045 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:23:24,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-14 14:23:24,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539698324] [2023-02-14 14:23:24,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:23:24,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-14 14:23:24,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:23:24,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-14 14:23:24,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-14 14:23:24,046 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 12 states have internal predecessors, (67), 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) [2023-02-14 14:23:24,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:23:24,070 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2023-02-14 14:23:24,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-14 14:23:24,070 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 12 states have internal predecessors, (67), 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 34 [2023-02-14 14:23:24,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:23:24,071 INFO L225 Difference]: With dead ends: 79 [2023-02-14 14:23:24,071 INFO L226 Difference]: Without dead ends: 78 [2023-02-14 14:23:24,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-14 14:23:24,072 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:23:24,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 67 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:23:24,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-02-14 14:23:24,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-02-14 14:23:24,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 76 states have (on average 1.0263157894736843) internal successors, (78), 77 states have internal predecessors, (78), 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) [2023-02-14 14:23:24,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2023-02-14 14:23:24,077 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 34 [2023-02-14 14:23:24,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:23:24,078 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2023-02-14 14:23:24,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 12 states have internal predecessors, (67), 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) [2023-02-14 14:23:24,078 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2023-02-14 14:23:24,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-02-14 14:23:24,079 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:23:24,079 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1] [2023-02-14 14:23:24,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-14 14:23:24,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:23:24,284 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:23:24,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:23:24,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1501766615, now seen corresponding path program 3 times [2023-02-14 14:23:24,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:23:24,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027527230] [2023-02-14 14:23:24,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:24,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:23:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:24,522 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:24,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:23:24,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027527230] [2023-02-14 14:23:24,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027527230] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:23:24,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171487413] [2023-02-14 14:23:24,523 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-14 14:23:24,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:23:24,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:23:24,524 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) [2023-02-14 14:23:24,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-14 14:23:24,574 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-14 14:23:24,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:23:24,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-14 14:23:24,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:23:24,667 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:24,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:23:24,944 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:24,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171487413] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:23:24,944 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:23:24,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-14 14:23:24,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858213456] [2023-02-14 14:23:24,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:23:24,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-14 14:23:24,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:23:24,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-14 14:23:24,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-14 14:23:24,946 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand has 24 states, 23 states have (on average 6.478260869565218) internal successors, (149), 24 states have internal predecessors, (149), 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) [2023-02-14 14:23:25,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:23:25,007 INFO L93 Difference]: Finished difference Result 173 states and 184 transitions. [2023-02-14 14:23:25,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-14 14:23:25,007 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.478260869565218) internal successors, (149), 24 states have internal predecessors, (149), 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 75 [2023-02-14 14:23:25,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:23:25,008 INFO L225 Difference]: With dead ends: 173 [2023-02-14 14:23:25,008 INFO L226 Difference]: Without dead ends: 172 [2023-02-14 14:23:25,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-14 14:23:25,009 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 28 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 14:23:25,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 139 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 14:23:25,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-02-14 14:23:25,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 161. [2023-02-14 14:23:25,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 159 states have (on average 1.0817610062893082) internal successors, (172), 160 states have internal predecessors, (172), 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) [2023-02-14 14:23:25,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 172 transitions. [2023-02-14 14:23:25,018 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 172 transitions. Word has length 75 [2023-02-14 14:23:25,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:23:25,019 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 172 transitions. [2023-02-14 14:23:25,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.478260869565218) internal successors, (149), 24 states have internal predecessors, (149), 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) [2023-02-14 14:23:25,019 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 172 transitions. [2023-02-14 14:23:25,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-02-14 14:23:25,020 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:23:25,020 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 1, 1, 1] [2023-02-14 14:23:25,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-14 14:23:25,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-02-14 14:23:25,225 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:23:25,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:23:25,230 INFO L85 PathProgramCache]: Analyzing trace with hash 689875238, now seen corresponding path program 3 times [2023-02-14 14:23:25,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:23:25,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681002655] [2023-02-14 14:23:25,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:25,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:23:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:25,425 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:25,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:23:25,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681002655] [2023-02-14 14:23:25,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681002655] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:23:25,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563548451] [2023-02-14 14:23:25,426 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-14 14:23:25,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:23:25,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:23:25,440 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) [2023-02-14 14:23:25,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-14 14:23:25,500 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-14 14:23:25,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:23:25,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-14 14:23:25,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:23:25,614 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:25,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:23:25,848 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:25,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563548451] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:23:25,849 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:23:25,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-14 14:23:25,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241140383] [2023-02-14 14:23:25,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:23:25,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-14 14:23:25,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:23:25,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-14 14:23:25,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-14 14:23:25,851 INFO L87 Difference]: Start difference. First operand 161 states and 172 transitions. Second operand has 24 states, 23 states have (on average 6.565217391304348) internal successors, (151), 24 states have internal predecessors, (151), 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) [2023-02-14 14:23:25,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:23:25,920 INFO L93 Difference]: Finished difference Result 163 states and 174 transitions. [2023-02-14 14:23:25,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-14 14:23:25,921 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.565217391304348) internal successors, (151), 24 states have internal predecessors, (151), 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 76 [2023-02-14 14:23:25,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:23:25,922 INFO L225 Difference]: With dead ends: 163 [2023-02-14 14:23:25,923 INFO L226 Difference]: Without dead ends: 162 [2023-02-14 14:23:25,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-14 14:23:25,923 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 14:23:25,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 131 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 14:23:25,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-02-14 14:23:25,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2023-02-14 14:23:25,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 160 states have (on average 1.0125) internal successors, (162), 161 states have internal predecessors, (162), 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) [2023-02-14 14:23:25,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 162 transitions. [2023-02-14 14:23:25,944 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 162 transitions. Word has length 76 [2023-02-14 14:23:25,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:23:25,946 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 162 transitions. [2023-02-14 14:23:25,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.565217391304348) internal successors, (151), 24 states have internal predecessors, (151), 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) [2023-02-14 14:23:25,947 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 162 transitions. [2023-02-14 14:23:25,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-02-14 14:23:25,949 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:23:25,949 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 1, 1, 1] [2023-02-14 14:23:25,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-14 14:23:26,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:23:26,155 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:23:26,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:23:26,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1627044457, now seen corresponding path program 4 times [2023-02-14 14:23:26,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:23:26,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803388788] [2023-02-14 14:23:26,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:26,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:23:26,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:26,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:26,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:23:26,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803388788] [2023-02-14 14:23:26,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803388788] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:23:26,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337392600] [2023-02-14 14:23:26,679 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-14 14:23:26,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:23:26,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:23:26,691 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) [2023-02-14 14:23:26,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-14 14:23:26,755 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-14 14:23:26,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:23:26,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-14 14:23:26,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:23:26,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:26,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:23:27,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1683 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:27,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337392600] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:23:27,649 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:23:27,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-14 14:23:27,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967816900] [2023-02-14 14:23:27,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:23:27,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-14 14:23:27,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:23:27,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-14 14:23:27,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-14 14:23:27,652 INFO L87 Difference]: Start difference. First operand 162 states and 162 transitions. Second operand has 48 states, 47 states have (on average 6.74468085106383) internal successors, (317), 48 states have internal predecessors, (317), 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) [2023-02-14 14:23:27,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:23:27,778 INFO L93 Difference]: Finished difference Result 353 states and 376 transitions. [2023-02-14 14:23:27,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-14 14:23:27,778 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.74468085106383) internal successors, (317), 48 states have internal predecessors, (317), 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 159 [2023-02-14 14:23:27,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:23:27,780 INFO L225 Difference]: With dead ends: 353 [2023-02-14 14:23:27,780 INFO L226 Difference]: Without dead ends: 352 [2023-02-14 14:23:27,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 340 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-14 14:23:27,782 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 68 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 14:23:27,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 273 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 14:23:27,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-02-14 14:23:27,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 329. [2023-02-14 14:23:27,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 327 states have (on average 1.0764525993883791) internal successors, (352), 328 states have internal predecessors, (352), 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) [2023-02-14 14:23:27,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 352 transitions. [2023-02-14 14:23:27,792 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 352 transitions. Word has length 159 [2023-02-14 14:23:27,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:23:27,792 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 352 transitions. [2023-02-14 14:23:27,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.74468085106383) internal successors, (317), 48 states have internal predecessors, (317), 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) [2023-02-14 14:23:27,793 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 352 transitions. [2023-02-14 14:23:27,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2023-02-14 14:23:27,797 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:23:27,797 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 1, 1, 1] [2023-02-14 14:23:27,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-14 14:23:28,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:23:28,003 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:23:28,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:23:28,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1101229338, now seen corresponding path program 4 times [2023-02-14 14:23:28,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:23:28,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630904196] [2023-02-14 14:23:28,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:28,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:23:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:28,475 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:28,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:23:28,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630904196] [2023-02-14 14:23:28,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630904196] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:23:28,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150984914] [2023-02-14 14:23:28,475 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-14 14:23:28,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:23:28,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:23:28,489 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) [2023-02-14 14:23:28,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-14 14:23:28,541 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-14 14:23:28,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:23:28,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-14 14:23:28,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:23:28,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:28,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:23:29,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:29,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150984914] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:23:29,437 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:23:29,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-14 14:23:29,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728745693] [2023-02-14 14:23:29,437 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:23:29,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-14 14:23:29,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:23:29,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-14 14:23:29,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-14 14:23:29,440 INFO L87 Difference]: Start difference. First operand 329 states and 352 transitions. Second operand has 48 states, 47 states have (on average 6.787234042553192) internal successors, (319), 48 states have internal predecessors, (319), 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) [2023-02-14 14:23:29,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:23:29,542 INFO L93 Difference]: Finished difference Result 331 states and 354 transitions. [2023-02-14 14:23:29,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-14 14:23:29,543 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.787234042553192) internal successors, (319), 48 states have internal predecessors, (319), 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 160 [2023-02-14 14:23:29,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:23:29,544 INFO L225 Difference]: With dead ends: 331 [2023-02-14 14:23:29,544 INFO L226 Difference]: Without dead ends: 330 [2023-02-14 14:23:29,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-14 14:23:29,545 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 14:23:29,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 249 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 14:23:29,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-02-14 14:23:29,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2023-02-14 14:23:29,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 328 states have (on average 1.0060975609756098) internal successors, (330), 329 states have internal predecessors, (330), 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) [2023-02-14 14:23:29,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 330 transitions. [2023-02-14 14:23:29,554 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 330 transitions. Word has length 160 [2023-02-14 14:23:29,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:23:29,555 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 330 transitions. [2023-02-14 14:23:29,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.787234042553192) internal successors, (319), 48 states have internal predecessors, (319), 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) [2023-02-14 14:23:29,555 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 330 transitions. [2023-02-14 14:23:29,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2023-02-14 14:23:29,558 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:23:29,558 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 1, 1, 1] [2023-02-14 14:23:29,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-14 14:23:29,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-02-14 14:23:29,764 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:23:29,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:23:29,765 INFO L85 PathProgramCache]: Analyzing trace with hash 62363369, now seen corresponding path program 5 times [2023-02-14 14:23:29,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:23:29,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772376027] [2023-02-14 14:23:29,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:29,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:23:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:31,477 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:31,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:23:31,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772376027] [2023-02-14 14:23:31,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772376027] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:23:31,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710225077] [2023-02-14 14:23:31,478 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-14 14:23:31,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:23:31,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:23:31,479 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 14:23:31,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-14 14:23:31,586 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-14 14:23:31,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:23:31,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-14 14:23:31,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:23:31,908 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:31,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:23:34,442 INFO L134 CoverageAnalysis]: Checked inductivity of 7383 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:34,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710225077] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:23:34,442 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:23:34,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-14 14:23:34,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157507176] [2023-02-14 14:23:34,442 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:23:34,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-14 14:23:34,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:23:34,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-14 14:23:34,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-14 14:23:34,446 INFO L87 Difference]: Start difference. First operand 330 states and 330 transitions. Second operand has 96 states, 95 states have (on average 6.873684210526315) internal successors, (653), 96 states have internal predecessors, (653), 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) [2023-02-14 14:23:34,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:23:34,718 INFO L93 Difference]: Finished difference Result 713 states and 760 transitions. [2023-02-14 14:23:34,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-14 14:23:34,718 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.873684210526315) internal successors, (653), 96 states have internal predecessors, (653), 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 327 [2023-02-14 14:23:34,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:23:34,725 INFO L225 Difference]: With dead ends: 713 [2023-02-14 14:23:34,725 INFO L226 Difference]: Without dead ends: 712 [2023-02-14 14:23:34,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 700 GetRequests, 606 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-14 14:23:34,728 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 148 mSDsluCounter, 529 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 538 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 [2023-02-14 14:23:34,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 538 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 14:23:34,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2023-02-14 14:23:34,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 665. [2023-02-14 14:23:34,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 663 states have (on average 1.0739064856711915) internal successors, (712), 664 states have internal predecessors, (712), 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) [2023-02-14 14:23:34,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 712 transitions. [2023-02-14 14:23:34,777 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 712 transitions. Word has length 327 [2023-02-14 14:23:34,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:23:34,777 INFO L495 AbstractCegarLoop]: Abstraction has 665 states and 712 transitions. [2023-02-14 14:23:34,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.873684210526315) internal successors, (653), 96 states have internal predecessors, (653), 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) [2023-02-14 14:23:34,777 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 712 transitions. [2023-02-14 14:23:34,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2023-02-14 14:23:34,780 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:23:34,780 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 1, 1, 1] [2023-02-14 14:23:34,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-14 14:23:34,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-14 14:23:34,981 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:23:34,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:23:34,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1933264486, now seen corresponding path program 5 times [2023-02-14 14:23:34,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:23:34,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178072286] [2023-02-14 14:23:34,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:34,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:23:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:36,627 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:36,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:23:36,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178072286] [2023-02-14 14:23:36,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178072286] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:23:36,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85857146] [2023-02-14 14:23:36,627 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-14 14:23:36,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:23:36,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:23:36,629 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 14:23:36,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-14 14:23:36,755 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-14 14:23:36,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:23:36,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-14 14:23:36,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:23:37,102 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:37,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:23:39,801 INFO L134 CoverageAnalysis]: Checked inductivity of 7429 backedges. 0 proven. 7429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:39,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85857146] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:23:39,801 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:23:39,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-14 14:23:39,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309330326] [2023-02-14 14:23:39,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:23:39,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-14 14:23:39,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:23:39,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-14 14:23:39,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-14 14:23:39,810 INFO L87 Difference]: Start difference. First operand 665 states and 712 transitions. Second operand has 96 states, 95 states have (on average 6.894736842105263) internal successors, (655), 96 states have internal predecessors, (655), 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) [2023-02-14 14:23:40,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:23:40,105 INFO L93 Difference]: Finished difference Result 667 states and 714 transitions. [2023-02-14 14:23:40,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-14 14:23:40,105 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 6.894736842105263) internal successors, (655), 96 states have internal predecessors, (655), 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 328 [2023-02-14 14:23:40,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:23:40,109 INFO L225 Difference]: With dead ends: 667 [2023-02-14 14:23:40,109 INFO L226 Difference]: Without dead ends: 666 [2023-02-14 14:23:40,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 702 GetRequests, 608 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-14 14:23:40,112 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-14 14:23:40,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 487 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-14 14:23:40,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2023-02-14 14:23:40,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 666. [2023-02-14 14:23:40,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 664 states have (on average 1.0030120481927711) internal successors, (666), 665 states have internal predecessors, (666), 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) [2023-02-14 14:23:40,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 666 transitions. [2023-02-14 14:23:40,123 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 666 transitions. Word has length 328 [2023-02-14 14:23:40,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:23:40,123 INFO L495 AbstractCegarLoop]: Abstraction has 666 states and 666 transitions. [2023-02-14 14:23:40,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 6.894736842105263) internal successors, (655), 96 states have internal predecessors, (655), 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) [2023-02-14 14:23:40,124 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 666 transitions. [2023-02-14 14:23:40,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2023-02-14 14:23:40,132 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:23:40,132 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 1, 1, 1] [2023-02-14 14:23:40,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-14 14:23:40,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-14 14:23:40,341 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:23:40,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:23:40,342 INFO L85 PathProgramCache]: Analyzing trace with hash 636866537, now seen corresponding path program 6 times [2023-02-14 14:23:40,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:23:40,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159027154] [2023-02-14 14:23:40,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:40,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:23:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:23:46,424 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:46,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:23:46,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159027154] [2023-02-14 14:23:46,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159027154] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:23:46,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057223795] [2023-02-14 14:23:46,425 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-14 14:23:46,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:23:46,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:23:46,432 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 14:23:46,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-14 14:23:46,664 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-14 14:23:46,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:23:46,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 1234 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-14 14:23:46,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:23:47,305 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:47,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:23:55,812 INFO L134 CoverageAnalysis]: Checked inductivity of 30879 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:23:55,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057223795] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:23:55,812 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:23:55,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-14 14:23:55,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177529738] [2023-02-14 14:23:55,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:23:55,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-14 14:23:55,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:23:55,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-14 14:23:55,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-14 14:23:55,824 INFO L87 Difference]: Start difference. First operand 666 states and 666 transitions. Second operand has 192 states, 191 states have (on average 6.93717277486911) internal successors, (1325), 192 states have internal predecessors, (1325), 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) [2023-02-14 14:23:57,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:23:57,202 INFO L93 Difference]: Finished difference Result 1433 states and 1528 transitions. [2023-02-14 14:23:57,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-14 14:23:57,203 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.93717277486911) internal successors, (1325), 192 states have internal predecessors, (1325), 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 663 [2023-02-14 14:23:57,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:23:57,207 INFO L225 Difference]: With dead ends: 1433 [2023-02-14 14:23:57,207 INFO L226 Difference]: Without dead ends: 1432 [2023-02-14 14:23:57,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1420 GetRequests, 1230 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-14 14:23:57,210 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 385 mSDsluCounter, 1055 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-14 14:23:57,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 1064 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-14 14:23:57,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2023-02-14 14:23:57,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1337. [2023-02-14 14:23:57,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1335 states have (on average 1.0726591760299626) internal successors, (1432), 1336 states have internal predecessors, (1432), 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) [2023-02-14 14:23:57,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1432 transitions. [2023-02-14 14:23:57,228 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1432 transitions. Word has length 663 [2023-02-14 14:23:57,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:23:57,229 INFO L495 AbstractCegarLoop]: Abstraction has 1337 states and 1432 transitions. [2023-02-14 14:23:57,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.93717277486911) internal successors, (1325), 192 states have internal predecessors, (1325), 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) [2023-02-14 14:23:57,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1432 transitions. [2023-02-14 14:23:57,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2023-02-14 14:23:57,232 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:23:57,232 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 1, 1, 1] [2023-02-14 14:23:57,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-14 14:23:57,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-02-14 14:23:57,438 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:23:57,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:23:57,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1731973786, now seen corresponding path program 6 times [2023-02-14 14:23:57,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:23:57,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984484950] [2023-02-14 14:23:57,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:23:57,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:23:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:24:03,051 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:24:03,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:24:03,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984484950] [2023-02-14 14:24:03,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984484950] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:24:03,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780285392] [2023-02-14 14:24:03,052 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-14 14:24:03,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:24:03,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:24:03,054 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 14:24:03,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-14 14:24:03,284 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-14 14:24:03,285 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:24:03,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-14 14:24:03,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:24:04,033 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:24:04,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:24:10,953 INFO L134 CoverageAnalysis]: Checked inductivity of 30973 backedges. 0 proven. 30973 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:24:10,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780285392] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:24:10,953 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:24:10,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-14 14:24:10,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518244977] [2023-02-14 14:24:10,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:24:10,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-14 14:24:10,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:24:10,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-14 14:24:10,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-14 14:24:10,962 INFO L87 Difference]: Start difference. First operand 1337 states and 1432 transitions. Second operand has 192 states, 191 states have (on average 6.947643979057592) internal successors, (1327), 192 states have internal predecessors, (1327), 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) [2023-02-14 14:24:12,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:24:12,069 INFO L93 Difference]: Finished difference Result 1339 states and 1434 transitions. [2023-02-14 14:24:12,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-14 14:24:12,070 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 6.947643979057592) internal successors, (1327), 192 states have internal predecessors, (1327), 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 664 [2023-02-14 14:24:12,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:24:12,073 INFO L225 Difference]: With dead ends: 1339 [2023-02-14 14:24:12,073 INFO L226 Difference]: Without dead ends: 1338 [2023-02-14 14:24:12,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1422 GetRequests, 1232 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-14 14:24:12,075 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 967 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-14 14:24:12,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 967 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-14 14:24:12,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2023-02-14 14:24:12,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1338. [2023-02-14 14:24:12,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 1336 states have (on average 1.001497005988024) internal successors, (1338), 1337 states have internal predecessors, (1338), 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) [2023-02-14 14:24:12,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1338 transitions. [2023-02-14 14:24:12,093 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1338 transitions. Word has length 664 [2023-02-14 14:24:12,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:24:12,094 INFO L495 AbstractCegarLoop]: Abstraction has 1338 states and 1338 transitions. [2023-02-14 14:24:12,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 6.947643979057592) internal successors, (1327), 192 states have internal predecessors, (1327), 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) [2023-02-14 14:24:12,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1338 transitions. [2023-02-14 14:24:12,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1336 [2023-02-14 14:24:12,104 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:24:12,105 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 190, 190, 1, 1, 1] [2023-02-14 14:24:12,110 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-14 14:24:12,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-14 14:24:12,310 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:24:12,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:24:12,311 INFO L85 PathProgramCache]: Analyzing trace with hash -880524823, now seen corresponding path program 7 times [2023-02-14 14:24:12,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:24:12,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157234446] [2023-02-14 14:24:12,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:24:12,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:24:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:24:38,677 INFO L134 CoverageAnalysis]: Checked inductivity of 126255 backedges. 0 proven. 126255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:24:38,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:24:38,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157234446] [2023-02-14 14:24:38,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157234446] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:24:38,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697915720] [2023-02-14 14:24:38,678 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-14 14:24:38,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:24:38,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:24:38,679 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 14:24:38,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-14 14:24:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:24:39,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 2482 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-14 14:24:39,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:24:40,108 INFO L134 CoverageAnalysis]: Checked inductivity of 126255 backedges. 0 proven. 126255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:24:40,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:25:12,074 INFO L134 CoverageAnalysis]: Checked inductivity of 126255 backedges. 0 proven. 126255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:25:12,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697915720] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:25:12,075 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:25:12,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-02-14 14:25:12,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664421847] [2023-02-14 14:25:12,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:25:12,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-02-14 14:25:12,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:25:12,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-02-14 14:25:12,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-14 14:25:12,106 INFO L87 Difference]: Start difference. First operand 1338 states and 1338 transitions. Second operand has 384 states, 383 states have (on average 6.968668407310705) internal successors, (2669), 384 states have internal predecessors, (2669), 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) [2023-02-14 14:25:24,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:25:24,884 INFO L93 Difference]: Finished difference Result 2873 states and 3064 transitions. [2023-02-14 14:25:24,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-02-14 14:25:24,889 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 6.968668407310705) internal successors, (2669), 384 states have internal predecessors, (2669), 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 1335 [2023-02-14 14:25:24,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:25:24,896 INFO L225 Difference]: With dead ends: 2873 [2023-02-14 14:25:24,896 INFO L226 Difference]: Without dead ends: 2872 [2023-02-14 14:25:24,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2860 GetRequests, 2478 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 40.4s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-14 14:25:24,902 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 864 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-14 14:25:24,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 2125 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-14 14:25:24,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2872 states. [2023-02-14 14:25:24,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2872 to 2681. [2023-02-14 14:25:24,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2681 states, 2679 states have (on average 1.0720418066442703) internal successors, (2872), 2680 states have internal predecessors, (2872), 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) [2023-02-14 14:25:24,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2681 states to 2681 states and 2872 transitions. [2023-02-14 14:25:24,934 INFO L78 Accepts]: Start accepts. Automaton has 2681 states and 2872 transitions. Word has length 1335 [2023-02-14 14:25:24,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:25:24,936 INFO L495 AbstractCegarLoop]: Abstraction has 2681 states and 2872 transitions. [2023-02-14 14:25:24,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 6.968668407310705) internal successors, (2669), 384 states have internal predecessors, (2669), 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) [2023-02-14 14:25:24,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2681 states and 2872 transitions. [2023-02-14 14:25:24,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2023-02-14 14:25:24,946 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:25:24,947 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 190, 190, 190, 190, 1, 1, 1] [2023-02-14 14:25:24,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-14 14:25:25,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:25:25,155 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:25:25,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:25:25,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1526465690, now seen corresponding path program 7 times [2023-02-14 14:25:25,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:25:25,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38594927] [2023-02-14 14:25:25,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:25:25,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:25:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:25:51,378 INFO L134 CoverageAnalysis]: Checked inductivity of 126445 backedges. 0 proven. 126445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:25:51,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:25:51,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38594927] [2023-02-14 14:25:51,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38594927] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:25:51,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1458375064] [2023-02-14 14:25:51,379 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-14 14:25:51,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:25:51,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:25:51,381 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 14:25:51,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-14 14:25:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:25:51,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 2485 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-14 14:25:51,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:25:53,129 INFO L134 CoverageAnalysis]: Checked inductivity of 126445 backedges. 0 proven. 126445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:25:53,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:26:26,304 INFO L134 CoverageAnalysis]: Checked inductivity of 126445 backedges. 0 proven. 126445 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:26:26,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1458375064] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:26:26,304 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:26:26,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-02-14 14:26:26,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873135796] [2023-02-14 14:26:26,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:26:26,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-02-14 14:26:26,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:26:26,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-02-14 14:26:26,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-14 14:26:26,323 INFO L87 Difference]: Start difference. First operand 2681 states and 2872 transitions. Second operand has 384 states, 383 states have (on average 6.973890339425587) internal successors, (2671), 384 states have internal predecessors, (2671), 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) [2023-02-14 14:26:34,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:26:34,052 INFO L93 Difference]: Finished difference Result 2683 states and 2874 transitions. [2023-02-14 14:26:34,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-02-14 14:26:34,053 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 6.973890339425587) internal successors, (2671), 384 states have internal predecessors, (2671), 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 1336 [2023-02-14 14:26:34,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:26:34,059 INFO L225 Difference]: With dead ends: 2683 [2023-02-14 14:26:34,059 INFO L226 Difference]: Without dead ends: 2682 [2023-02-14 14:26:34,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2862 GetRequests, 2480 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.2s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-14 14:26:34,064 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 1914 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-14 14:26:34,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1923 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-14 14:26:34,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2023-02-14 14:26:34,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2682. [2023-02-14 14:26:34,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2682 states, 2680 states have (on average 1.0007462686567163) internal successors, (2682), 2681 states have internal predecessors, (2682), 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) [2023-02-14 14:26:34,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2682 states to 2682 states and 2682 transitions. [2023-02-14 14:26:34,099 INFO L78 Accepts]: Start accepts. Automaton has 2682 states and 2682 transitions. Word has length 1336 [2023-02-14 14:26:34,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:26:34,100 INFO L495 AbstractCegarLoop]: Abstraction has 2682 states and 2682 transitions. [2023-02-14 14:26:34,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 6.973890339425587) internal successors, (2671), 384 states have internal predecessors, (2671), 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) [2023-02-14 14:26:34,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2682 states and 2682 transitions. [2023-02-14 14:26:34,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2680 [2023-02-14 14:26:34,137 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:26:34,137 INFO L195 NwaCegarLoop]: trace histogram [383, 383, 382, 382, 382, 382, 382, 1, 1, 1] [2023-02-14 14:26:34,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-02-14 14:26:34,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:26:34,347 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-14 14:26:34,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:26:34,348 INFO L85 PathProgramCache]: Analyzing trace with hash 183051753, now seen corresponding path program 8 times [2023-02-14 14:26:34,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:26:34,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876893910] [2023-02-14 14:26:34,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:26:34,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:26:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat