/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/systemc/token_ring.07.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:03:01,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:03:01,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:03:01,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:03:01,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:03:01,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:03:01,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:03:01,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:03:01,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:03:01,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:03:01,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:03:01,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:03:01,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:03:01,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:03:01,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:03:01,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:03:01,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:03:01,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:03:01,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:03:01,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:03:01,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:03:01,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:03:01,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:03:01,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:03:01,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 17:03:01,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 17:03:01,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 17:03:01,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 17:03:01,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 17:03:01,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 17:03:01,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:03:01,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:03:01,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:03:01,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:03:01,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:03:01,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:03:01,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:03:01,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:03:01,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:03:01,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:03:01,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:03:01,476 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 17:03:01,514 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:03:01,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:03:01,515 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:03:01,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:03:01,516 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:03:01,516 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:03:01,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:03:01,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:03:01,517 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:03:01,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:03:01,518 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:03:01,518 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:03:01,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:03:01,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:03:01,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:03:01,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:03:01,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:03:01,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:03:01,519 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:03:01,520 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:03:01,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:03:01,520 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:03:01,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:03:01,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:03:01,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:03:01,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:03:01,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:03:01,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:03:01,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:03:01,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:03:01,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:03:01,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:03:01,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:03:01,522 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:03:01,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:03:01,952 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:03:01,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:03:01,957 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:03:01,958 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:03:01,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.07.cil-2.c [2022-10-16 17:03:02,048 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70530384d/920714ab5677469e98174615c31d2dc0/FLAG958c3074a [2022-10-16 17:03:02,710 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:03:02,711 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.07.cil-2.c [2022-10-16 17:03:02,732 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70530384d/920714ab5677469e98174615c31d2dc0/FLAG958c3074a [2022-10-16 17:03:03,061 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/70530384d/920714ab5677469e98174615c31d2dc0 [2022-10-16 17:03:03,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:03:03,069 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:03:03,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:03:03,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:03:03,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:03:03,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:03:03" (1/1) ... [2022-10-16 17:03:03,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46df6d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:03, skipping insertion in model container [2022-10-16 17:03:03,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:03:03" (1/1) ... [2022-10-16 17:03:03,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:03:03,141 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:03:03,285 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.07.cil-2.c[671,684] [2022-10-16 17:03:03,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:03:03,465 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:03:03,493 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.07.cil-2.c[671,684] [2022-10-16 17:03:03,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:03:03,595 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:03:03,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:03 WrapperNode [2022-10-16 17:03:03,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:03:03,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:03:03,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:03:03,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:03:03,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:03" (1/1) ... [2022-10-16 17:03:03,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:03" (1/1) ... [2022-10-16 17:03:03,703 INFO L138 Inliner]: procedures = 42, calls = 53, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 584 [2022-10-16 17:03:03,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:03:03,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:03:03,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:03:03,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:03:03,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:03" (1/1) ... [2022-10-16 17:03:03,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:03" (1/1) ... [2022-10-16 17:03:03,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:03" (1/1) ... [2022-10-16 17:03:03,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:03" (1/1) ... [2022-10-16 17:03:03,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:03" (1/1) ... [2022-10-16 17:03:03,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:03" (1/1) ... [2022-10-16 17:03:03,808 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:03" (1/1) ... [2022-10-16 17:03:03,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:03" (1/1) ... [2022-10-16 17:03:03,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:03:03,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:03:03,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:03:03,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:03:03,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:03" (1/1) ... [2022-10-16 17:03:03,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:03:03,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:03:03,872 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) [2022-10-16 17:03:03,896 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 [2022-10-16 17:03:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 17:03:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-10-16 17:03:03,941 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-10-16 17:03:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-10-16 17:03:03,941 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-10-16 17:03:03,941 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-10-16 17:03:03,942 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-10-16 17:03:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-10-16 17:03:03,942 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-10-16 17:03:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-10-16 17:03:03,942 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-10-16 17:03:03,942 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-10-16 17:03:03,943 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-10-16 17:03:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 17:03:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-10-16 17:03:03,943 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-10-16 17:03:03,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:03:03,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:03:04,075 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:03:04,077 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:03:04,878 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:03:04,891 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:03:04,891 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-10-16 17:03:04,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:03:04 BoogieIcfgContainer [2022-10-16 17:03:04,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:03:04,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:03:04,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:03:04,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:03:04,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:03:03" (1/3) ... [2022-10-16 17:03:04,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20eaea1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:03:04, skipping insertion in model container [2022-10-16 17:03:04,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:03:03" (2/3) ... [2022-10-16 17:03:04,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20eaea1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:03:04, skipping insertion in model container [2022-10-16 17:03:04,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:03:04" (3/3) ... [2022-10-16 17:03:04,904 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.07.cil-2.c [2022-10-16 17:03:04,926 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:03:04,926 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-16 17:03:05,001 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:03:05,010 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=FINITE_AUTOMATA, 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;@771dc7a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:03:05,011 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-16 17:03:05,017 INFO L276 IsEmpty]: Start isEmpty. Operand has 289 states, 242 states have (on average 1.6859504132231404) internal successors, (408), 261 states have internal predecessors, (408), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2022-10-16 17:03:05,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:03:05,035 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:05,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:05,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:03:05,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:05,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1031243766, now seen corresponding path program 1 times [2022-10-16 17:03:05,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:05,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860003967] [2022-10-16 17:03:05,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:05,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:05,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:05,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:05,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:03:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:05,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:03:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:05,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:03:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:05,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:03:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:05,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:05,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:05,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860003967] [2022-10-16 17:03:05,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860003967] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:05,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:05,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 17:03:05,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430986645] [2022-10-16 17:03:05,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:05,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:03:05,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:05,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:03:05,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:03:05,899 INFO L87 Difference]: Start difference. First operand has 289 states, 242 states have (on average 1.6859504132231404) internal successors, (408), 261 states have internal predecessors, (408), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:07,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:07,069 INFO L93 Difference]: Finished difference Result 655 states and 1045 transitions. [2022-10-16 17:03:07,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:03:07,073 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:03:07,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:07,090 INFO L225 Difference]: With dead ends: 655 [2022-10-16 17:03:07,091 INFO L226 Difference]: Without dead ends: 367 [2022-10-16 17:03:07,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:03:07,102 INFO L413 NwaCegarLoop]: 466 mSDtfsCounter, 693 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:07,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 801 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 17:03:07,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-10-16 17:03:07,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 280. [2022-10-16 17:03:07,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 237 states have (on average 1.59915611814346) internal successors, (379), 253 states have internal predecessors, (379), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-10-16 17:03:07,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 421 transitions. [2022-10-16 17:03:07,234 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 421 transitions. Word has length 121 [2022-10-16 17:03:07,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:07,236 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 421 transitions. [2022-10-16 17:03:07,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:07,238 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 421 transitions. [2022-10-16 17:03:07,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:03:07,249 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:07,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:07,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:03:07,251 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:03:07,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:07,252 INFO L85 PathProgramCache]: Analyzing trace with hash 559887416, now seen corresponding path program 1 times [2022-10-16 17:03:07,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:07,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905607204] [2022-10-16 17:03:07,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:07,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:07,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:07,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:03:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:07,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:03:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:07,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:03:07,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:07,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:03:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:07,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:07,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:07,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905607204] [2022-10-16 17:03:07,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905607204] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:07,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:07,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 17:03:07,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330883934] [2022-10-16 17:03:07,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:07,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:03:07,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:07,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:03:07,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:03:07,724 INFO L87 Difference]: Start difference. First operand 280 states and 421 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:09,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:09,804 INFO L93 Difference]: Finished difference Result 992 states and 1532 transitions. [2022-10-16 17:03:09,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 17:03:09,805 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:03:09,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:09,818 INFO L225 Difference]: With dead ends: 992 [2022-10-16 17:03:09,819 INFO L226 Difference]: Without dead ends: 727 [2022-10-16 17:03:09,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:03:09,828 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 1013 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:09,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1027 Valid, 1245 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-16 17:03:09,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-10-16 17:03:09,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 540. [2022-10-16 17:03:09,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 474 states have (on average 1.609704641350211) internal successors, (763), 491 states have internal predecessors, (763), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (40), 37 states have call predecessors, (40), 37 states have call successors, (40) [2022-10-16 17:03:09,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 840 transitions. [2022-10-16 17:03:09,929 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 840 transitions. Word has length 121 [2022-10-16 17:03:09,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:09,929 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 840 transitions. [2022-10-16 17:03:09,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:09,930 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 840 transitions. [2022-10-16 17:03:09,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:03:09,932 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:09,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:09,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:03:09,933 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:03:09,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:09,934 INFO L85 PathProgramCache]: Analyzing trace with hash -294801868, now seen corresponding path program 1 times [2022-10-16 17:03:09,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:09,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224786878] [2022-10-16 17:03:09,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:09,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:10,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:10,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:10,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:03:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:10,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:03:10,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:10,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:03:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:10,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:03:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:10,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:10,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:10,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224786878] [2022-10-16 17:03:10,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224786878] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:10,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:10,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:10,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164738488] [2022-10-16 17:03:10,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:10,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:10,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:10,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:10,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:10,301 INFO L87 Difference]: Start difference. First operand 540 states and 840 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:12,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:12,938 INFO L93 Difference]: Finished difference Result 1610 states and 2533 transitions. [2022-10-16 17:03:12,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:03:12,944 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:03:12,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:12,953 INFO L225 Difference]: With dead ends: 1610 [2022-10-16 17:03:12,953 INFO L226 Difference]: Without dead ends: 1085 [2022-10-16 17:03:12,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:03:12,957 INFO L413 NwaCegarLoop]: 707 mSDtfsCounter, 1026 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 2227 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:12,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1040 Valid, 2227 Invalid, 2068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-10-16 17:03:12,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1085 states. [2022-10-16 17:03:13,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1085 to 784. [2022-10-16 17:03:13,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 695 states have (on average 1.60431654676259) internal successors, (1115), 713 states have internal predecessors, (1115), 53 states have call successors, (53), 18 states have call predecessors, (53), 20 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2022-10-16 17:03:13,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1226 transitions. [2022-10-16 17:03:13,078 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1226 transitions. Word has length 121 [2022-10-16 17:03:13,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:13,079 INFO L495 AbstractCegarLoop]: Abstraction has 784 states and 1226 transitions. [2022-10-16 17:03:13,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:13,079 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1226 transitions. [2022-10-16 17:03:13,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:03:13,082 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:13,082 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:13,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 17:03:13,083 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:03:13,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:13,084 INFO L85 PathProgramCache]: Analyzing trace with hash 2133456754, now seen corresponding path program 1 times [2022-10-16 17:03:13,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:13,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505465901] [2022-10-16 17:03:13,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:13,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:13,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:13,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:03:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:13,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:03:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:13,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:03:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:13,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:03:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:13,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:13,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:13,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505465901] [2022-10-16 17:03:13,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505465901] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:13,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:13,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:13,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800877724] [2022-10-16 17:03:13,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:13,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:13,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:13,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:13,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:13,329 INFO L87 Difference]: Start difference. First operand 784 states and 1226 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:15,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:15,873 INFO L93 Difference]: Finished difference Result 2519 states and 3993 transitions. [2022-10-16 17:03:15,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:03:15,875 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:03:15,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:15,889 INFO L225 Difference]: With dead ends: 2519 [2022-10-16 17:03:15,889 INFO L226 Difference]: Without dead ends: 1750 [2022-10-16 17:03:15,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:03:15,894 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 1022 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 2220 SdHoareTripleChecker+Invalid, 2049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:15,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1036 Valid, 2220 Invalid, 2049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-10-16 17:03:15,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1750 states. [2022-10-16 17:03:16,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1750 to 1275. [2022-10-16 17:03:16,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1275 states, 1140 states have (on average 1.6) internal successors, (1824), 1160 states have internal predecessors, (1824), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2022-10-16 17:03:16,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1275 states to 1275 states and 2007 transitions. [2022-10-16 17:03:16,088 INFO L78 Accepts]: Start accepts. Automaton has 1275 states and 2007 transitions. Word has length 121 [2022-10-16 17:03:16,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:16,089 INFO L495 AbstractCegarLoop]: Abstraction has 1275 states and 2007 transitions. [2022-10-16 17:03:16,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:16,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1275 states and 2007 transitions. [2022-10-16 17:03:16,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:03:16,092 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:16,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:16,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:03:16,093 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:03:16,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:16,094 INFO L85 PathProgramCache]: Analyzing trace with hash 826314356, now seen corresponding path program 1 times [2022-10-16 17:03:16,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:16,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248481615] [2022-10-16 17:03:16,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:16,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:16,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:16,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:16,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:03:16,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:16,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:03:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:16,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:03:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:16,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:03:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:16,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:16,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:16,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248481615] [2022-10-16 17:03:16,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248481615] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:16,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:16,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:16,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894752993] [2022-10-16 17:03:16,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:16,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:16,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:16,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:16,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:16,350 INFO L87 Difference]: Start difference. First operand 1275 states and 2007 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:18,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:18,986 INFO L93 Difference]: Finished difference Result 4280 states and 6814 transitions. [2022-10-16 17:03:18,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:03:18,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:03:18,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:19,007 INFO L225 Difference]: With dead ends: 4280 [2022-10-16 17:03:19,008 INFO L226 Difference]: Without dead ends: 3020 [2022-10-16 17:03:19,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:03:19,015 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 1021 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 1967 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 2215 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:19,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 2215 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1967 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-16 17:03:19,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3020 states. [2022-10-16 17:03:19,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3020 to 2260. [2022-10-16 17:03:19,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2260 states, 2033 states have (on average 1.5966551893753074) internal successors, (3246), 2057 states have internal predecessors, (3246), 149 states have call successors, (149), 54 states have call predecessors, (149), 62 states have return successors, (184), 156 states have call predecessors, (184), 149 states have call successors, (184) [2022-10-16 17:03:19,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2260 states to 2260 states and 3579 transitions. [2022-10-16 17:03:19,296 INFO L78 Accepts]: Start accepts. Automaton has 2260 states and 3579 transitions. Word has length 121 [2022-10-16 17:03:19,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:19,297 INFO L495 AbstractCegarLoop]: Abstraction has 2260 states and 3579 transitions. [2022-10-16 17:03:19,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:19,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2260 states and 3579 transitions. [2022-10-16 17:03:19,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:03:19,301 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:19,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:19,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 17:03:19,302 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:03:19,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:19,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1571156174, now seen corresponding path program 1 times [2022-10-16 17:03:19,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:19,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292667314] [2022-10-16 17:03:19,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:19,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:19,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:19,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:03:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:19,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:03:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:19,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:03:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:19,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:03:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:19,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:19,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:19,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292667314] [2022-10-16 17:03:19,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292667314] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:19,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:19,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:19,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68077260] [2022-10-16 17:03:19,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:19,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:19,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:19,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:19,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:19,522 INFO L87 Difference]: Start difference. First operand 2260 states and 3579 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:22,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:22,322 INFO L93 Difference]: Finished difference Result 7803 states and 12476 transitions. [2022-10-16 17:03:22,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:03:22,323 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:03:22,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:22,364 INFO L225 Difference]: With dead ends: 7803 [2022-10-16 17:03:22,364 INFO L226 Difference]: Without dead ends: 5558 [2022-10-16 17:03:22,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:03:22,378 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 1020 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 1959 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 2210 SdHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:22,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1034 Valid, 2210 Invalid, 2033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1959 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-10-16 17:03:22,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5558 states. [2022-10-16 17:03:22,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5558 to 4237. [2022-10-16 17:03:22,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4237 states, 3826 states have (on average 1.5943544171458441) internal successors, (6100), 3858 states have internal predecessors, (6100), 277 states have call successors, (277), 102 states have call predecessors, (277), 118 states have return successors, (374), 292 states have call predecessors, (374), 277 states have call successors, (374) [2022-10-16 17:03:22,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4237 states to 4237 states and 6751 transitions. [2022-10-16 17:03:22,891 INFO L78 Accepts]: Start accepts. Automaton has 4237 states and 6751 transitions. Word has length 121 [2022-10-16 17:03:22,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:22,892 INFO L495 AbstractCegarLoop]: Abstraction has 4237 states and 6751 transitions. [2022-10-16 17:03:22,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:22,893 INFO L276 IsEmpty]: Start isEmpty. Operand 4237 states and 6751 transitions. [2022-10-16 17:03:22,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:03:22,897 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:22,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:22,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 17:03:22,898 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:03:22,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:22,899 INFO L85 PathProgramCache]: Analyzing trace with hash -540115276, now seen corresponding path program 1 times [2022-10-16 17:03:22,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:22,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691341226] [2022-10-16 17:03:22,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:22,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:23,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:23,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:03:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:23,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:03:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:23,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:03:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:23,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:03:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:23,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:23,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:23,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691341226] [2022-10-16 17:03:23,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691341226] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:23,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:23,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:23,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709545532] [2022-10-16 17:03:23,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:23,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:23,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:23,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:23,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:23,176 INFO L87 Difference]: Start difference. First operand 4237 states and 6751 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:26,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:26,165 INFO L93 Difference]: Finished difference Result 14850 states and 23862 transitions. [2022-10-16 17:03:26,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:03:26,166 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:03:26,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:26,239 INFO L225 Difference]: With dead ends: 14850 [2022-10-16 17:03:26,239 INFO L226 Difference]: Without dead ends: 10628 [2022-10-16 17:03:26,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:03:26,265 INFO L413 NwaCegarLoop]: 494 mSDtfsCounter, 1078 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 1463 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:26,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 1463 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 17:03:26,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10628 states. [2022-10-16 17:03:27,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10628 to 8206. [2022-10-16 17:03:27,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8206 states, 7427 states have (on average 1.592836946277097) internal successors, (11830), 7475 states have internal predecessors, (11830), 533 states have call successors, (533), 198 states have call predecessors, (533), 230 states have return successors, (808), 564 states have call predecessors, (808), 533 states have call successors, (808) [2022-10-16 17:03:27,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8206 states to 8206 states and 13171 transitions. [2022-10-16 17:03:27,525 INFO L78 Accepts]: Start accepts. Automaton has 8206 states and 13171 transitions. Word has length 121 [2022-10-16 17:03:27,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:27,527 INFO L495 AbstractCegarLoop]: Abstraction has 8206 states and 13171 transitions. [2022-10-16 17:03:27,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:27,527 INFO L276 IsEmpty]: Start isEmpty. Operand 8206 states and 13171 transitions. [2022-10-16 17:03:27,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:03:27,535 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:27,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:27,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 17:03:27,536 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:03:27,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:27,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1848448754, now seen corresponding path program 1 times [2022-10-16 17:03:27,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:27,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823271604] [2022-10-16 17:03:27,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:27,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:27,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:27,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:27,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:03:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:27,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:03:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:27,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:03:27,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:27,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:03:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:27,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:27,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:27,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823271604] [2022-10-16 17:03:27,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823271604] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:27,797 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:27,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:27,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058746609] [2022-10-16 17:03:27,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:27,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:27,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:27,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:27,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:27,800 INFO L87 Difference]: Start difference. First operand 8206 states and 13171 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:32,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:32,026 INFO L93 Difference]: Finished difference Result 28945 states and 46828 transitions. [2022-10-16 17:03:32,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:03:32,026 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:03:32,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:32,130 INFO L225 Difference]: With dead ends: 28945 [2022-10-16 17:03:32,131 INFO L226 Difference]: Without dead ends: 20754 [2022-10-16 17:03:32,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:03:32,178 INFO L413 NwaCegarLoop]: 680 mSDtfsCounter, 1018 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 2200 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:32,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1032 Valid, 2200 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1943 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-10-16 17:03:32,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20754 states. [2022-10-16 17:03:33,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20754 to 16175. [2022-10-16 17:03:33,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16175 states, 14660 states have (on average 1.5918144611186904) internal successors, (23336), 14740 states have internal predecessors, (23336), 1045 states have call successors, (1045), 390 states have call predecessors, (1045), 454 states have return successors, (1838), 1108 states have call predecessors, (1838), 1045 states have call successors, (1838) [2022-10-16 17:03:33,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16175 states to 16175 states and 26219 transitions. [2022-10-16 17:03:33,979 INFO L78 Accepts]: Start accepts. Automaton has 16175 states and 26219 transitions. Word has length 121 [2022-10-16 17:03:33,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:33,980 INFO L495 AbstractCegarLoop]: Abstraction has 16175 states and 26219 transitions. [2022-10-16 17:03:33,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:33,981 INFO L276 IsEmpty]: Start isEmpty. Operand 16175 states and 26219 transitions. [2022-10-16 17:03:33,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:03:33,996 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:33,997 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:33,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 17:03:33,997 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:03:33,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:33,998 INFO L85 PathProgramCache]: Analyzing trace with hash -845447436, now seen corresponding path program 1 times [2022-10-16 17:03:33,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:33,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350554298] [2022-10-16 17:03:33,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:33,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:34,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:34,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:03:34,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:34,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:03:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:34,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:03:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:34,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:03:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:34,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:34,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:34,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350554298] [2022-10-16 17:03:34,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350554298] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:34,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:34,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:34,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388393608] [2022-10-16 17:03:34,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:34,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:34,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:34,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:34,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:34,258 INFO L87 Difference]: Start difference. First operand 16175 states and 26219 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:42,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:42,418 INFO L93 Difference]: Finished difference Result 63984 states and 103732 transitions. [2022-10-16 17:03:42,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:03:42,419 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:03:42,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:42,653 INFO L225 Difference]: With dead ends: 63984 [2022-10-16 17:03:42,653 INFO L226 Difference]: Without dead ends: 47824 [2022-10-16 17:03:42,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 17:03:42,740 INFO L413 NwaCegarLoop]: 671 mSDtfsCounter, 1311 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 1925 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:42,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1333 Valid, 2183 Invalid, 2007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1925 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-10-16 17:03:42,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47824 states. [2022-10-16 17:03:46,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47824 to 31920. [2022-10-16 17:03:46,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31920 states, 28997 states have (on average 1.590578335689899) internal successors, (46122), 29141 states have internal predecessors, (46122), 2005 states have call successors, (2005), 774 states have call predecessors, (2005), 902 states have return successors, (4320), 2132 states have call predecessors, (4320), 2005 states have call successors, (4320) [2022-10-16 17:03:46,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31920 states to 31920 states and 52447 transitions. [2022-10-16 17:03:46,791 INFO L78 Accepts]: Start accepts. Automaton has 31920 states and 52447 transitions. Word has length 121 [2022-10-16 17:03:46,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:46,792 INFO L495 AbstractCegarLoop]: Abstraction has 31920 states and 52447 transitions. [2022-10-16 17:03:46,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:46,792 INFO L276 IsEmpty]: Start isEmpty. Operand 31920 states and 52447 transitions. [2022-10-16 17:03:46,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:03:46,818 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:46,819 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:46,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 17:03:46,819 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:03:46,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:46,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1902178638, now seen corresponding path program 1 times [2022-10-16 17:03:46,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:46,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329750956] [2022-10-16 17:03:46,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:46,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:47,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:47,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:47,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:03:47,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:47,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:03:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:47,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:03:47,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:47,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:03:47,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:47,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:47,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:47,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329750956] [2022-10-16 17:03:47,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329750956] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:47,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:47,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:47,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106345363] [2022-10-16 17:03:47,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:47,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:47,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:47,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:47,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:47,136 INFO L87 Difference]: Start difference. First operand 31920 states and 52447 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:04:00,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:04:00,714 INFO L93 Difference]: Finished difference Result 123117 states and 202550 transitions. [2022-10-16 17:04:00,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:04:00,715 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:04:00,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:04:01,253 INFO L225 Difference]: With dead ends: 123117 [2022-10-16 17:04:01,253 INFO L226 Difference]: Without dead ends: 91212 [2022-10-16 17:04:01,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 17:04:01,436 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 1228 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1250 SdHoareTripleChecker+Valid, 2174 SdHoareTripleChecker+Invalid, 1989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:04:01,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1250 Valid, 2174 Invalid, 1989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-10-16 17:04:01,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91212 states. [2022-10-16 17:04:08,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91212 to 63410. [2022-10-16 17:04:08,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63410 states, 57735 states have (on average 1.5904044340521348) internal successors, (91822), 58007 states have internal predecessors, (91822), 3861 states have call successors, (3861), 1542 states have call predecessors, (3861), 1798 states have return successors, (10678), 4116 states have call predecessors, (10678), 3861 states have call successors, (10678) [2022-10-16 17:04:09,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63410 states to 63410 states and 106361 transitions. [2022-10-16 17:04:09,292 INFO L78 Accepts]: Start accepts. Automaton has 63410 states and 106361 transitions. Word has length 121 [2022-10-16 17:04:09,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:04:09,292 INFO L495 AbstractCegarLoop]: Abstraction has 63410 states and 106361 transitions. [2022-10-16 17:04:09,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:04:09,293 INFO L276 IsEmpty]: Start isEmpty. Operand 63410 states and 106361 transitions. [2022-10-16 17:04:09,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:04:09,346 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:04:09,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:04:09,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 17:04:09,347 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:04:09,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:04:09,348 INFO L85 PathProgramCache]: Analyzing trace with hash 773813744, now seen corresponding path program 1 times [2022-10-16 17:04:09,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:04:09,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213353833] [2022-10-16 17:04:09,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:04:09,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:04:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:09,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:04:09,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:09,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:04:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:09,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:04:09,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:09,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:04:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:09,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:04:09,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:09,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:04:09,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:04:09,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213353833] [2022-10-16 17:04:09,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213353833] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:04:09,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:04:09,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:04:09,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995407349] [2022-10-16 17:04:09,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:04:09,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:04:09,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:04:09,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:04:09,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:04:09,840 INFO L87 Difference]: Start difference. First operand 63410 states and 106361 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:04:21,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:04:21,007 INFO L93 Difference]: Finished difference Result 144198 states and 246850 transitions. [2022-10-16 17:04:21,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 17:04:21,008 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:04:21,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:04:21,454 INFO L225 Difference]: With dead ends: 144198 [2022-10-16 17:04:21,455 INFO L226 Difference]: Without dead ends: 80803 [2022-10-16 17:04:21,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:04:21,936 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 853 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 17:04:21,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 988 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 17:04:21,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80803 states. [2022-10-16 17:04:28,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80803 to 63410. [2022-10-16 17:04:29,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63410 states, 57735 states have (on average 1.5859530614012298) internal successors, (91565), 58007 states have internal predecessors, (91565), 3861 states have call successors, (3861), 1542 states have call predecessors, (3861), 1798 states have return successors, (10678), 4116 states have call predecessors, (10678), 3861 states have call successors, (10678) [2022-10-16 17:04:29,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63410 states to 63410 states and 106104 transitions. [2022-10-16 17:04:29,549 INFO L78 Accepts]: Start accepts. Automaton has 63410 states and 106104 transitions. Word has length 121 [2022-10-16 17:04:29,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:04:29,549 INFO L495 AbstractCegarLoop]: Abstraction has 63410 states and 106104 transitions. [2022-10-16 17:04:29,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:04:29,550 INFO L276 IsEmpty]: Start isEmpty. Operand 63410 states and 106104 transitions. [2022-10-16 17:04:29,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:04:29,612 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:04:29,612 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:04:29,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 17:04:29,613 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:04:29,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:04:29,613 INFO L85 PathProgramCache]: Analyzing trace with hash -109695246, now seen corresponding path program 1 times [2022-10-16 17:04:29,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:04:29,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162616042] [2022-10-16 17:04:29,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:04:29,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:04:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:29,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:04:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:29,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:04:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:29,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:04:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:29,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:04:29,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:29,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:04:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:29,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:04:29,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:04:29,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162616042] [2022-10-16 17:04:29,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162616042] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:04:29,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:04:29,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:04:29,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491134238] [2022-10-16 17:04:29,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:04:29,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:04:29,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:04:29,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:04:29,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:04:29,853 INFO L87 Difference]: Start difference. First operand 63410 states and 106104 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:04:54,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:04:54,959 INFO L93 Difference]: Finished difference Result 236651 states and 397318 transitions. [2022-10-16 17:04:54,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:04:54,960 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:04:54,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:04:55,867 INFO L225 Difference]: With dead ends: 236651 [2022-10-16 17:04:55,867 INFO L226 Difference]: Without dead ends: 173256 [2022-10-16 17:04:56,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 17:04:56,112 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 1040 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 2099 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 2178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:04:56,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 2223 Invalid, 2178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2099 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-10-16 17:04:56,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173256 states. [2022-10-16 17:05:10,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173256 to 126388. [2022-10-16 17:05:10,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126388 states, 115337 states have (on average 1.5840970373774244) internal successors, (182705), 115865 states have internal predecessors, (182705), 7445 states have call successors, (7445), 3078 states have call predecessors, (7445), 3590 states have return successors, (27640), 7956 states have call predecessors, (27640), 7445 states have call successors, (27640) [2022-10-16 17:05:11,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126388 states to 126388 states and 217790 transitions. [2022-10-16 17:05:11,308 INFO L78 Accepts]: Start accepts. Automaton has 126388 states and 217790 transitions. Word has length 121 [2022-10-16 17:05:11,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:05:11,309 INFO L495 AbstractCegarLoop]: Abstraction has 126388 states and 217790 transitions. [2022-10-16 17:05:11,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:05:11,309 INFO L276 IsEmpty]: Start isEmpty. Operand 126388 states and 217790 transitions. [2022-10-16 17:05:11,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:05:11,387 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:05:11,387 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:05:11,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 17:05:11,387 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:05:11,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:05:11,388 INFO L85 PathProgramCache]: Analyzing trace with hash -138195536, now seen corresponding path program 1 times [2022-10-16 17:05:11,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:05:11,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337975141] [2022-10-16 17:05:11,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:05:11,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:05:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:11,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:05:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:11,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:05:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:11,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:05:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:11,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:05:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:11,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:05:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:11,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:05:11,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:05:11,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337975141] [2022-10-16 17:05:11,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337975141] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:05:11,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:05:11,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:05:11,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881391362] [2022-10-16 17:05:11,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:05:11,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:05:11,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:05:11,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:05:11,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:05:11,592 INFO L87 Difference]: Start difference. First operand 126388 states and 217790 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:06:00,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:00,272 INFO L93 Difference]: Finished difference Result 462699 states and 802830 transitions. [2022-10-16 17:06:00,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:06:00,273 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:06:00,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:02,228 INFO L225 Difference]: With dead ends: 462699 [2022-10-16 17:06:02,228 INFO L226 Difference]: Without dead ends: 336326 [2022-10-16 17:06:02,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 17:06:02,902 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 1102 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 1872 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 2158 SdHoareTripleChecker+Invalid, 1954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:02,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1124 Valid, 2158 Invalid, 1954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1872 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-16 17:06:03,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336326 states. [2022-10-16 17:06:32,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336326 to 251829. [2022-10-16 17:06:32,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251829 states, 230282 states have (on average 1.5826986043199207) internal successors, (364467), 231322 states have internal predecessors, (364467), 14357 states have call successors, (14357), 6150 states have call predecessors, (14357), 7174 states have return successors, (74430), 15380 states have call predecessors, (74430), 14357 states have call successors, (74430) [2022-10-16 17:06:37,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251829 states to 251829 states and 453254 transitions. [2022-10-16 17:06:37,988 INFO L78 Accepts]: Start accepts. Automaton has 251829 states and 453254 transitions. Word has length 121 [2022-10-16 17:06:37,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:06:37,989 INFO L495 AbstractCegarLoop]: Abstraction has 251829 states and 453254 transitions. [2022-10-16 17:06:37,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:06:37,989 INFO L276 IsEmpty]: Start isEmpty. Operand 251829 states and 453254 transitions.