./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/recHanoi02-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5317dae Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/recHanoi02-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d379c583eb269678169316efe01a55df7fa26acebe2991472725b0afcb2879ab --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 03:59:29,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 03:59:29,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 03:59:30,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 03:59:30,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 03:59:30,023 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 03:59:30,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 03:59:30,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 03:59:30,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 03:59:30,030 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 03:59:30,030 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 03:59:30,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 03:59:30,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 03:59:30,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 03:59:30,035 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 03:59:30,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 03:59:30,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 03:59:30,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 03:59:30,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 03:59:30,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 03:59:30,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 03:59:30,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 03:59:30,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 03:59:30,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 03:59:30,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 03:59:30,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 03:59:30,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 03:59:30,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 03:59:30,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 03:59:30,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 03:59:30,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 03:59:30,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 03:59:30,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 03:59:30,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 03:59:30,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 03:59:30,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 03:59:30,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 03:59:30,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 03:59:30,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 03:59:30,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 03:59:30,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 03:59:30,061 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-16 03:59:30,083 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 03:59:30,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 03:59:30,084 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 03:59:30,085 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 03:59:30,085 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 03:59:30,085 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 03:59:30,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 03:59:30,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 03:59:30,086 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 03:59:30,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 03:59:30,087 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 03:59:30,087 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 03:59:30,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 03:59:30,087 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 03:59:30,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 03:59:30,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 03:59:30,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 03:59:30,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 03:59:30,088 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-16 03:59:30,088 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 03:59:30,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 03:59:30,088 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 03:59:30,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 03:59:30,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 03:59:30,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 03:59:30,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 03:59:30,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 03:59:30,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 03:59:30,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 03:59:30,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 03:59:30,089 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 03:59:30,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 03:59:30,090 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 03:59:30,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 03:59:30,090 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 03:59:30,091 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 03:59:30,091 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 03:59:30,091 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d379c583eb269678169316efe01a55df7fa26acebe2991472725b0afcb2879ab [2023-02-16 03:59:30,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 03:59:30,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 03:59:30,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 03:59:30,299 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 03:59:30,299 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 03:59:30,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/recHanoi02-2.c [2023-02-16 03:59:31,217 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 03:59:31,406 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 03:59:31,407 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/recHanoi02-2.c [2023-02-16 03:59:31,411 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83cf44156/843b2133f9fe4abe9e25aae95fc423fd/FLAGc48b3cfe2 [2023-02-16 03:59:31,426 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83cf44156/843b2133f9fe4abe9e25aae95fc423fd [2023-02-16 03:59:31,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 03:59:31,429 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 03:59:31,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 03:59:31,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 03:59:31,434 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 03:59:31,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 03:59:31" (1/1) ... [2023-02-16 03:59:31,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ce66648 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:59:31, skipping insertion in model container [2023-02-16 03:59:31,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 03:59:31" (1/1) ... [2023-02-16 03:59:31,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 03:59:31,450 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 03:59:31,573 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/recHanoi02-2.c[839,852] [2023-02-16 03:59:31,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 03:59:31,582 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 03:59:31,593 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/recHanoi02-2.c[839,852] [2023-02-16 03:59:31,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 03:59:31,602 INFO L208 MainTranslator]: Completed translation [2023-02-16 03:59:31,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:59:31 WrapperNode [2023-02-16 03:59:31,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 03:59:31,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 03:59:31,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 03:59:31,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 03:59:31,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:59:31" (1/1) ... [2023-02-16 03:59:31,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:59:31" (1/1) ... [2023-02-16 03:59:31,622 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2023-02-16 03:59:31,622 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 03:59:31,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 03:59:31,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 03:59:31,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 03:59:31,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:59:31" (1/1) ... [2023-02-16 03:59:31,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:59:31" (1/1) ... [2023-02-16 03:59:31,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:59:31" (1/1) ... [2023-02-16 03:59:31,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:59:31" (1/1) ... [2023-02-16 03:59:31,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:59:31" (1/1) ... [2023-02-16 03:59:31,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:59:31" (1/1) ... [2023-02-16 03:59:31,632 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:59:31" (1/1) ... [2023-02-16 03:59:31,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:59:31" (1/1) ... [2023-02-16 03:59:31,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 03:59:31,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 03:59:31,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 03:59:31,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 03:59:31,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:59:31" (1/1) ... [2023-02-16 03:59:31,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 03:59:31,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 03:59:31,661 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-16 03:59:31,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-16 03:59:31,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-16 03:59:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2023-02-16 03:59:31,702 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2023-02-16 03:59:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 03:59:31,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 03:59:31,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-16 03:59:31,745 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 03:59:31,746 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 03:59:31,839 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 03:59:31,843 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 03:59:31,843 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-02-16 03:59:31,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 03:59:31 BoogieIcfgContainer [2023-02-16 03:59:31,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 03:59:31,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 03:59:31,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 03:59:31,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 03:59:31,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 03:59:31" (1/3) ... [2023-02-16 03:59:31,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73979169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 03:59:31, skipping insertion in model container [2023-02-16 03:59:31,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 03:59:31" (2/3) ... [2023-02-16 03:59:31,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73979169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 03:59:31, skipping insertion in model container [2023-02-16 03:59:31,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 03:59:31" (3/3) ... [2023-02-16 03:59:31,849 INFO L112 eAbstractionObserver]: Analyzing ICFG recHanoi02-2.c [2023-02-16 03:59:31,859 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 03:59:31,860 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-16 03:59:31,886 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 03:59:31,890 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1c41f860, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 03:59:31,891 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-16 03:59:31,893 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 18 states have (on average 1.5) internal successors, (27), 24 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 03:59:31,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-16 03:59:31,912 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:59:31,913 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:59:31,913 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 03:59:31,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:59:31,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1325924785, now seen corresponding path program 1 times [2023-02-16 03:59:31,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:59:31,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365951071] [2023-02-16 03:59:31,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:59:31,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:59:32,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:32,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:59:32,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:59:32,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365951071] [2023-02-16 03:59:32,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365951071] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:59:32,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:59:32,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 03:59:32,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765954206] [2023-02-16 03:59:32,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:59:32,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 03:59:32,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:59:32,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 03:59:32,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 03:59:32,129 INFO L87 Difference]: Start difference. First operand has 28 states, 18 states have (on average 1.5) internal successors, (27), 24 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 03:59:32,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:59:32,208 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2023-02-16 03:59:32,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 03:59:32,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-16 03:59:32,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:59:32,215 INFO L225 Difference]: With dead ends: 54 [2023-02-16 03:59:32,215 INFO L226 Difference]: Without dead ends: 39 [2023-02-16 03:59:32,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-16 03:59:32,223 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 36 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 03:59:32,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 86 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:59:32,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-02-16 03:59:32,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2023-02-16 03:59:32,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.5) internal successors, (33), 27 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 03:59:32,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2023-02-16 03:59:32,263 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 7 [2023-02-16 03:59:32,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:59:32,263 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2023-02-16 03:59:32,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 03:59:32,264 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2023-02-16 03:59:32,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-16 03:59:32,264 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:59:32,264 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:59:32,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-16 03:59:32,265 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 03:59:32,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:59:32,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1846004663, now seen corresponding path program 1 times [2023-02-16 03:59:32,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:59:32,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920238311] [2023-02-16 03:59:32,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:59:32,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:59:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:32,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:59:32,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:59:32,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920238311] [2023-02-16 03:59:32,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920238311] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:59:32,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:59:32,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 03:59:32,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216911540] [2023-02-16 03:59:32,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:59:32,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 03:59:32,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:59:32,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 03:59:32,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 03:59:32,312 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 03:59:32,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:59:32,341 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2023-02-16 03:59:32,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 03:59:32,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-16 03:59:32,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:59:32,342 INFO L225 Difference]: With dead ends: 32 [2023-02-16 03:59:32,343 INFO L226 Difference]: Without dead ends: 31 [2023-02-16 03:59:32,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-16 03:59:32,344 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 29 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 03:59:32,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 32 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:59:32,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-16 03:59:32,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-02-16 03:59:32,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 26 states have internal predecessors, (31), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 03:59:32,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2023-02-16 03:59:32,349 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 8 [2023-02-16 03:59:32,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:59:32,349 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2023-02-16 03:59:32,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 03:59:32,349 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2023-02-16 03:59:32,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-16 03:59:32,350 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:59:32,350 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:59:32,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-16 03:59:32,351 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 03:59:32,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:59:32,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1230855953, now seen corresponding path program 1 times [2023-02-16 03:59:32,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:59:32,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479738965] [2023-02-16 03:59:32,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:59:32,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:59:32,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:32,440 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:59:32,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:59:32,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479738965] [2023-02-16 03:59:32,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479738965] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 03:59:32,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453935990] [2023-02-16 03:59:32,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:59:32,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 03:59:32,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 03:59:32,444 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 03:59:32,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-16 03:59:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:32,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-16 03:59:32,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:59:32,558 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:59:32,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 03:59:32,623 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:59:32,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453935990] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 03:59:32,624 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 03:59:32,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-16 03:59:32,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612673753] [2023-02-16 03:59:32,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 03:59:32,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-16 03:59:32,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:59:32,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-16 03:59:32,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-02-16 03:59:32,631 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 03:59:32,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:59:32,777 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2023-02-16 03:59:32,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-16 03:59:32,778 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-16 03:59:32,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:59:32,779 INFO L225 Difference]: With dead ends: 92 [2023-02-16 03:59:32,779 INFO L226 Difference]: Without dead ends: 91 [2023-02-16 03:59:32,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2023-02-16 03:59:32,780 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 192 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 03:59:32,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 116 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 03:59:32,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-02-16 03:59:32,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 67. [2023-02-16 03:59:32,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 52 states have (on average 1.4615384615384615) internal successors, (76), 56 states have internal predecessors, (76), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-16 03:59:32,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2023-02-16 03:59:32,789 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 12 [2023-02-16 03:59:32,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:59:32,789 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2023-02-16 03:59:32,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 03:59:32,789 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2023-02-16 03:59:32,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-16 03:59:32,790 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:59:32,790 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:59:32,797 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-16 03:59:32,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 03:59:32,995 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 03:59:32,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:59:32,996 INFO L85 PathProgramCache]: Analyzing trace with hash -2001544150, now seen corresponding path program 1 times [2023-02-16 03:59:32,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:59:32,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868241808] [2023-02-16 03:59:32,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:59:32,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:59:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:33,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-16 03:59:33,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:33,061 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-16 03:59:33,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:59:33,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868241808] [2023-02-16 03:59:33,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868241808] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:59:33,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 03:59:33,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 03:59:33,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701419904] [2023-02-16 03:59:33,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:59:33,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 03:59:33,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:59:33,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 03:59:33,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 03:59:33,064 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:59:33,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:59:33,084 INFO L93 Difference]: Finished difference Result 104 states and 140 transitions. [2023-02-16 03:59:33,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 03:59:33,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-02-16 03:59:33,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:59:33,086 INFO L225 Difference]: With dead ends: 104 [2023-02-16 03:59:33,086 INFO L226 Difference]: Without dead ends: 93 [2023-02-16 03:59:33,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 03:59:33,087 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 03:59:33,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 45 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:59:33,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-02-16 03:59:33,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-02-16 03:59:33,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 78 states have internal predecessors, (98), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2023-02-16 03:59:33,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2023-02-16 03:59:33,096 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 15 [2023-02-16 03:59:33,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:59:33,096 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2023-02-16 03:59:33,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 03:59:33,097 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2023-02-16 03:59:33,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-16 03:59:33,098 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:59:33,098 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1] [2023-02-16 03:59:33,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-16 03:59:33,098 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 03:59:33,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:59:33,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1886011185, now seen corresponding path program 2 times [2023-02-16 03:59:33,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:59:33,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654993127] [2023-02-16 03:59:33,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:59:33,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:59:33,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:33,216 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:59:33,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:59:33,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654993127] [2023-02-16 03:59:33,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654993127] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 03:59:33,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655653758] [2023-02-16 03:59:33,217 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 03:59:33,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 03:59:33,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 03:59:33,222 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 03:59:33,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-16 03:59:33,263 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 03:59:33,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 03:59:33,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-16 03:59:33,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:59:33,301 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:59:33,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 03:59:33,431 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:59:33,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655653758] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 03:59:33,431 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 03:59:33,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-16 03:59:33,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4738541] [2023-02-16 03:59:33,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 03:59:33,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-16 03:59:33,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:59:33,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-16 03:59:33,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2023-02-16 03:59:33,434 INFO L87 Difference]: Start difference. First operand 93 states and 113 transitions. Second operand has 24 states, 21 states have (on average 2.0) internal successors, (42), 14 states have internal predecessors, (42), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 03:59:33,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:59:33,758 INFO L93 Difference]: Finished difference Result 248 states and 263 transitions. [2023-02-16 03:59:33,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-02-16 03:59:33,759 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 2.0) internal successors, (42), 14 states have internal predecessors, (42), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-02-16 03:59:33,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:59:33,761 INFO L225 Difference]: With dead ends: 248 [2023-02-16 03:59:33,761 INFO L226 Difference]: Without dead ends: 247 [2023-02-16 03:59:33,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=515, Invalid=1207, Unknown=0, NotChecked=0, Total=1722 [2023-02-16 03:59:33,763 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 491 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 03:59:33,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 275 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 03:59:33,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-02-16 03:59:33,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 207. [2023-02-16 03:59:33,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 171 states have (on average 1.3099415204678362) internal successors, (224), 174 states have internal predecessors, (224), 12 states have call successors, (12), 11 states have call predecessors, (12), 19 states have return successors, (21), 21 states have call predecessors, (21), 11 states have call successors, (21) [2023-02-16 03:59:33,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 257 transitions. [2023-02-16 03:59:33,778 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 257 transitions. Word has length 27 [2023-02-16 03:59:33,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:59:33,778 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 257 transitions. [2023-02-16 03:59:33,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 2.0) internal successors, (42), 14 states have internal predecessors, (42), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 03:59:33,778 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 257 transitions. [2023-02-16 03:59:33,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-16 03:59:33,779 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:59:33,779 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:59:33,793 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-16 03:59:33,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 03:59:33,984 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 03:59:33,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:59:33,985 INFO L85 PathProgramCache]: Analyzing trace with hash 907320634, now seen corresponding path program 1 times [2023-02-16 03:59:33,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:59:33,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805822359] [2023-02-16 03:59:33,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:59:33,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:59:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:34,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-16 03:59:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:34,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 03:59:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:34,053 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-16 03:59:34,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:59:34,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805822359] [2023-02-16 03:59:34,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805822359] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 03:59:34,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47667913] [2023-02-16 03:59:34,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:59:34,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 03:59:34,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 03:59:34,056 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 03:59:34,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-16 03:59:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:34,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 03:59:34,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:59:34,142 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-16 03:59:34,142 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 03:59:34,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47667913] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 03:59:34,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-16 03:59:34,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-02-16 03:59:34,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663270081] [2023-02-16 03:59:34,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 03:59:34,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-16 03:59:34,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:59:34,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-16 03:59:34,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-16 03:59:34,144 INFO L87 Difference]: Start difference. First operand 207 states and 257 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-16 03:59:34,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:59:34,167 INFO L93 Difference]: Finished difference Result 207 states and 257 transitions. [2023-02-16 03:59:34,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 03:59:34,168 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-02-16 03:59:34,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:59:34,169 INFO L225 Difference]: With dead ends: 207 [2023-02-16 03:59:34,169 INFO L226 Difference]: Without dead ends: 205 [2023-02-16 03:59:34,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-16 03:59:34,170 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 5 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 03:59:34,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 62 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:59:34,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-02-16 03:59:34,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2023-02-16 03:59:34,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 171 states have (on average 1.1812865497076024) internal successors, (202), 172 states have internal predecessors, (202), 12 states have call successors, (12), 11 states have call predecessors, (12), 19 states have return successors, (21), 21 states have call predecessors, (21), 11 states have call successors, (21) [2023-02-16 03:59:34,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 235 transitions. [2023-02-16 03:59:34,179 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 235 transitions. Word has length 27 [2023-02-16 03:59:34,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:59:34,179 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 235 transitions. [2023-02-16 03:59:34,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-16 03:59:34,180 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 235 transitions. [2023-02-16 03:59:34,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-16 03:59:34,180 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:59:34,180 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 03:59:34,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-16 03:59:34,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 03:59:34,386 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 03:59:34,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:59:34,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1937831374, now seen corresponding path program 1 times [2023-02-16 03:59:34,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:59:34,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976431769] [2023-02-16 03:59:34,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:59:34,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:59:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:34,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-16 03:59:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:34,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 03:59:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:34,442 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-16 03:59:34,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:59:34,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976431769] [2023-02-16 03:59:34,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976431769] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 03:59:34,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434239190] [2023-02-16 03:59:34,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:59:34,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 03:59:34,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 03:59:34,444 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 03:59:34,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-16 03:59:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:34,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 03:59:34,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:59:34,491 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-16 03:59:34,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 03:59:34,554 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-16 03:59:34,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434239190] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 03:59:34,555 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 03:59:34,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-02-16 03:59:34,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144451776] [2023-02-16 03:59:34,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 03:59:34,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-16 03:59:34,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:59:34,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-16 03:59:34,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-02-16 03:59:34,557 INFO L87 Difference]: Start difference. First operand 205 states and 235 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-16 03:59:34,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:59:34,590 INFO L93 Difference]: Finished difference Result 409 states and 494 transitions. [2023-02-16 03:59:34,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-16 03:59:34,591 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 28 [2023-02-16 03:59:34,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:59:34,592 INFO L225 Difference]: With dead ends: 409 [2023-02-16 03:59:34,592 INFO L226 Difference]: Without dead ends: 344 [2023-02-16 03:59:34,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-02-16 03:59:34,593 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 4 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 03:59:34,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 76 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 03:59:34,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-02-16 03:59:34,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2023-02-16 03:59:34,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 290 states have (on average 1.0586206896551724) internal successors, (307), 287 states have internal predecessors, (307), 12 states have call successors, (12), 11 states have call predecessors, (12), 40 states have return successors, (45), 45 states have call predecessors, (45), 11 states have call successors, (45) [2023-02-16 03:59:34,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 364 transitions. [2023-02-16 03:59:34,603 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 364 transitions. Word has length 28 [2023-02-16 03:59:34,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:59:34,603 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 364 transitions. [2023-02-16 03:59:34,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2023-02-16 03:59:34,604 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 364 transitions. [2023-02-16 03:59:34,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-02-16 03:59:34,605 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:59:34,605 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1] [2023-02-16 03:59:34,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-16 03:59:34,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 03:59:34,810 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 03:59:34,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:59:34,810 INFO L85 PathProgramCache]: Analyzing trace with hash 244264079, now seen corresponding path program 3 times [2023-02-16 03:59:34,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:59:34,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469682367] [2023-02-16 03:59:34,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:59:34,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:59:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:35,159 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:59:35,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:59:35,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469682367] [2023-02-16 03:59:35,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469682367] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 03:59:35,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406461662] [2023-02-16 03:59:35,159 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 03:59:35,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 03:59:35,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 03:59:35,169 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 03:59:35,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-16 03:59:35,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-16 03:59:35,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 03:59:35,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-16 03:59:35,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:59:35,282 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:59:35,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 03:59:35,702 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:59:35,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406461662] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 03:59:35,703 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 03:59:35,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-16 03:59:35,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432476881] [2023-02-16 03:59:35,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 03:59:35,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-16 03:59:35,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:59:35,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-16 03:59:35,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2023-02-16 03:59:35,705 INFO L87 Difference]: Start difference. First operand 344 states and 364 transitions. Second operand has 48 states, 45 states have (on average 2.0) internal successors, (90), 26 states have internal predecessors, (90), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 03:59:36,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:59:36,524 INFO L93 Difference]: Finished difference Result 823 states and 856 transitions. [2023-02-16 03:59:36,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-02-16 03:59:36,525 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 2.0) internal successors, (90), 26 states have internal predecessors, (90), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2023-02-16 03:59:36,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:59:36,527 INFO L225 Difference]: With dead ends: 823 [2023-02-16 03:59:36,527 INFO L226 Difference]: Without dead ends: 822 [2023-02-16 03:59:36,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1598 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=2204, Invalid=5278, Unknown=0, NotChecked=0, Total=7482 [2023-02-16 03:59:36,531 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 911 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 188 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-16 03:59:36,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 452 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [188 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-16 03:59:36,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2023-02-16 03:59:36,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 800. [2023-02-16 03:59:36,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 674 states have (on average 1.0608308605341246) internal successors, (715), 671 states have internal predecessors, (715), 24 states have call successors, (24), 23 states have call predecessors, (24), 100 states have return successors, (105), 105 states have call predecessors, (105), 23 states have call successors, (105) [2023-02-16 03:59:36,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 844 transitions. [2023-02-16 03:59:36,547 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 844 transitions. Word has length 57 [2023-02-16 03:59:36,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:59:36,547 INFO L495 AbstractCegarLoop]: Abstraction has 800 states and 844 transitions. [2023-02-16 03:59:36,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 2.0) internal successors, (90), 26 states have internal predecessors, (90), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 03:59:36,548 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 844 transitions. [2023-02-16 03:59:36,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-02-16 03:59:36,549 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:59:36,550 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2023-02-16 03:59:36,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-16 03:59:36,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 03:59:36,755 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 03:59:36,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:59:36,755 INFO L85 PathProgramCache]: Analyzing trace with hash 841754434, now seen corresponding path program 2 times [2023-02-16 03:59:36,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:59:36,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033579376] [2023-02-16 03:59:36,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:59:36,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:59:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:36,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-16 03:59:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:36,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 03:59:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:36,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 03:59:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:36,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 03:59:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:36,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 03:59:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:36,941 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-02-16 03:59:36,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:59:36,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033579376] [2023-02-16 03:59:36,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033579376] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 03:59:36,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786414170] [2023-02-16 03:59:36,942 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 03:59:36,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 03:59:36,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 03:59:36,943 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 03:59:36,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-16 03:59:36,975 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 03:59:36,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 03:59:36,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-16 03:59:36,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:59:37,047 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-02-16 03:59:37,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 03:59:37,462 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-02-16 03:59:37,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786414170] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 03:59:37,462 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 03:59:37,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2023-02-16 03:59:37,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265792603] [2023-02-16 03:59:37,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 03:59:37,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-16 03:59:37,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:59:37,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-16 03:59:37,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-02-16 03:59:37,464 INFO L87 Difference]: Start difference. First operand 800 states and 844 transitions. Second operand has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2023-02-16 03:59:37,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:59:37,530 INFO L93 Difference]: Finished difference Result 1743 states and 1924 transitions. [2023-02-16 03:59:37,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-16 03:59:37,531 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) Word has length 64 [2023-02-16 03:59:37,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:59:37,534 INFO L225 Difference]: With dead ends: 1743 [2023-02-16 03:59:37,534 INFO L226 Difference]: Without dead ends: 1439 [2023-02-16 03:59:37,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-02-16 03:59:37,536 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 4 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 03:59:37,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 71 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 03:59:37,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2023-02-16 03:59:37,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1439. [2023-02-16 03:59:37,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 1226 states have (on average 1.0285481239804242) internal successors, (1261), 1217 states have internal predecessors, (1261), 24 states have call successors, (24), 23 states have call predecessors, (24), 187 states have return successors, (198), 198 states have call predecessors, (198), 23 states have call successors, (198) [2023-02-16 03:59:37,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 1483 transitions. [2023-02-16 03:59:37,559 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 1483 transitions. Word has length 64 [2023-02-16 03:59:37,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:59:37,559 INFO L495 AbstractCegarLoop]: Abstraction has 1439 states and 1483 transitions. [2023-02-16 03:59:37,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.130434782608696) internal successors, (72), 24 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2023-02-16 03:59:37,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 1483 transitions. [2023-02-16 03:59:37,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-02-16 03:59:37,562 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:59:37,562 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1, 1] [2023-02-16 03:59:37,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-16 03:59:37,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 03:59:37,767 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 03:59:37,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:59:37,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1809372175, now seen corresponding path program 4 times [2023-02-16 03:59:37,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:59:37,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284417827] [2023-02-16 03:59:37,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:59:37,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:59:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:38,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:59:38,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:59:38,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284417827] [2023-02-16 03:59:38,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284417827] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 03:59:38,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446469335] [2023-02-16 03:59:38,762 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-16 03:59:38,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 03:59:38,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 03:59:38,763 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 03:59:38,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-16 03:59:38,811 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-16 03:59:38,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 03:59:38,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-16 03:59:38,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:59:38,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:59:38,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 03:59:40,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:59:40,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446469335] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 03:59:40,232 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 03:59:40,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-16 03:59:40,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773423837] [2023-02-16 03:59:40,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 03:59:40,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-16 03:59:40,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:59:40,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-16 03:59:40,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2023-02-16 03:59:40,235 INFO L87 Difference]: Start difference. First operand 1439 states and 1483 transitions. Second operand has 96 states, 93 states have (on average 2.0) internal successors, (186), 50 states have internal predecessors, (186), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 03:59:43,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:59:43,038 INFO L93 Difference]: Finished difference Result 3406 states and 3475 transitions. [2023-02-16 03:59:43,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2023-02-16 03:59:43,038 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 2.0) internal successors, (186), 50 states have internal predecessors, (186), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2023-02-16 03:59:43,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:59:43,051 INFO L225 Difference]: With dead ends: 3406 [2023-02-16 03:59:43,051 INFO L226 Difference]: Without dead ends: 3405 [2023-02-16 03:59:43,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7136 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=9119, Invalid=22033, Unknown=0, NotChecked=0, Total=31152 [2023-02-16 03:59:43,057 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 2716 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 724 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2718 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 1625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 724 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-16 03:59:43,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2718 Valid, 905 Invalid, 1625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [724 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-16 03:59:43,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3405 states. [2023-02-16 03:59:43,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3405 to 3359. [2023-02-16 03:59:43,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3359 states, 2858 states have (on average 1.0290412876137158) internal successors, (2941), 2849 states have internal predecessors, (2941), 48 states have call successors, (48), 47 states have call predecessors, (48), 451 states have return successors, (462), 462 states have call predecessors, (462), 47 states have call successors, (462) [2023-02-16 03:59:43,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3359 states to 3359 states and 3451 transitions. [2023-02-16 03:59:43,103 INFO L78 Accepts]: Start accepts. Automaton has 3359 states and 3451 transitions. Word has length 117 [2023-02-16 03:59:43,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:59:43,103 INFO L495 AbstractCegarLoop]: Abstraction has 3359 states and 3451 transitions. [2023-02-16 03:59:43,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 2.0) internal successors, (186), 50 states have internal predecessors, (186), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 03:59:43,104 INFO L276 IsEmpty]: Start isEmpty. Operand 3359 states and 3451 transitions. [2023-02-16 03:59:43,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-02-16 03:59:43,109 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:59:43,109 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2023-02-16 03:59:43,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-16 03:59:43,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 03:59:43,314 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 03:59:43,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:59:43,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1057662018, now seen corresponding path program 3 times [2023-02-16 03:59:43,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:59:43,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401720501] [2023-02-16 03:59:43,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:59:43,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:59:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:43,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-16 03:59:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:43,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 03:59:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:43,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 03:59:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:43,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 03:59:43,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:43,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 03:59:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:43,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 03:59:43,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:43,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 03:59:43,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:43,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 03:59:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:43,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 03:59:43,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:43,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 03:59:44,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:44,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 03:59:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:44,043 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-02-16 03:59:44,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:59:44,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401720501] [2023-02-16 03:59:44,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401720501] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 03:59:44,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140689598] [2023-02-16 03:59:44,044 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 03:59:44,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 03:59:44,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 03:59:44,057 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 03:59:44,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-16 03:59:44,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-16 03:59:44,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 03:59:44,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 23 conjunts are in the unsatisfiable core [2023-02-16 03:59:44,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:59:44,211 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-02-16 03:59:44,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 03:59:47,281 INFO L134 CoverageAnalysis]: Checked inductivity of 662 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-02-16 03:59:47,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140689598] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 03:59:47,294 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 03:59:47,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2023-02-16 03:59:47,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374526680] [2023-02-16 03:59:47,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 03:59:47,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-16 03:59:47,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:59:47,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-16 03:59:47,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2023-02-16 03:59:47,298 INFO L87 Difference]: Start difference. First operand 3359 states and 3451 transitions. Second operand has 48 states, 47 states have (on average 3.0638297872340425) internal successors, (144), 48 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) [2023-02-16 03:59:47,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 03:59:47,430 INFO L93 Difference]: Finished difference Result 7260 states and 7915 transitions. [2023-02-16 03:59:47,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-02-16 03:59:47,430 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 3.0638297872340425) internal successors, (144), 48 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) Word has length 136 [2023-02-16 03:59:47,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 03:59:47,471 INFO L225 Difference]: With dead ends: 7260 [2023-02-16 03:59:47,472 INFO L226 Difference]: Without dead ends: 5897 [2023-02-16 03:59:47,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1092 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2023-02-16 03:59:47,479 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 4 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 03:59:47,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 109 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 03:59:47,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5897 states. [2023-02-16 03:59:47,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5897 to 5897. [2023-02-16 03:59:47,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5897 states, 5042 states have (on average 1.014081713605712) internal successors, (5113), 5021 states have internal predecessors, (5113), 48 states have call successors, (48), 47 states have call predecessors, (48), 805 states have return successors, (828), 828 states have call predecessors, (828), 47 states have call successors, (828) [2023-02-16 03:59:47,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5897 states to 5897 states and 5989 transitions. [2023-02-16 03:59:47,551 INFO L78 Accepts]: Start accepts. Automaton has 5897 states and 5989 transitions. Word has length 136 [2023-02-16 03:59:47,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 03:59:47,551 INFO L495 AbstractCegarLoop]: Abstraction has 5897 states and 5989 transitions. [2023-02-16 03:59:47,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 3.0638297872340425) internal successors, (144), 48 states have internal predecessors, (144), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) [2023-02-16 03:59:47,552 INFO L276 IsEmpty]: Start isEmpty. Operand 5897 states and 5989 transitions. [2023-02-16 03:59:47,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2023-02-16 03:59:47,555 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 03:59:47,555 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1, 1] [2023-02-16 03:59:47,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-16 03:59:47,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-02-16 03:59:47,760 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 03:59:47,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 03:59:47,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1901552399, now seen corresponding path program 5 times [2023-02-16 03:59:47,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 03:59:47,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108414644] [2023-02-16 03:59:47,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 03:59:47,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 03:59:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 03:59:50,886 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:59:50,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 03:59:50,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108414644] [2023-02-16 03:59:50,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108414644] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 03:59:50,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39079166] [2023-02-16 03:59:50,887 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-16 03:59:50,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 03:59:50,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 03:59:50,888 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 03:59:50,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-16 03:59:51,087 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-16 03:59:51,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 03:59:51,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-16 03:59:51,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 03:59:51,320 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:59:51,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 03:59:55,016 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 03:59:55,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39079166] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 03:59:55,016 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 03:59:55,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-16 03:59:55,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62863421] [2023-02-16 03:59:55,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 03:59:55,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-16 03:59:55,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 03:59:55,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-16 03:59:55,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2023-02-16 03:59:55,037 INFO L87 Difference]: Start difference. First operand 5897 states and 5989 transitions. Second operand has 192 states, 189 states have (on average 2.0) internal successors, (378), 98 states have internal predecessors, (378), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:00:05,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:00:05,580 INFO L93 Difference]: Finished difference Result 13864 states and 14005 transitions. [2023-02-16 04:00:05,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 264 states. [2023-02-16 04:00:05,581 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 2.0) internal successors, (378), 98 states have internal predecessors, (378), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 237 [2023-02-16 04:00:05,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:00:05,624 INFO L225 Difference]: With dead ends: 13864 [2023-02-16 04:00:05,624 INFO L226 Difference]: Without dead ends: 13863 [2023-02-16 04:00:05,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 377 SyntacticMatches, 1 SemanticMatches, 355 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30092 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=37097, Invalid=89995, Unknown=0, NotChecked=0, Total=127092 [2023-02-16 04:00:05,638 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 6780 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 1623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6782 SdHoareTripleChecker+Valid, 2091 SdHoareTripleChecker+Invalid, 3506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1623 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-16 04:00:05,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6782 Valid, 2091 Invalid, 3506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1623 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-02-16 04:00:05,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13863 states. [2023-02-16 04:00:05,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13863 to 13769. [2023-02-16 04:00:05,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13769 states, 11762 states have (on average 1.0141982656010882) internal successors, (11929), 11741 states have internal predecessors, (11929), 96 states have call successors, (96), 95 states have call predecessors, (96), 1909 states have return successors, (1932), 1932 states have call predecessors, (1932), 95 states have call successors, (1932) [2023-02-16 04:00:05,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13769 states to 13769 states and 13957 transitions. [2023-02-16 04:00:05,954 INFO L78 Accepts]: Start accepts. Automaton has 13769 states and 13957 transitions. Word has length 237 [2023-02-16 04:00:05,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:00:05,955 INFO L495 AbstractCegarLoop]: Abstraction has 13769 states and 13957 transitions. [2023-02-16 04:00:05,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 2.0) internal successors, (378), 98 states have internal predecessors, (378), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:00:05,955 INFO L276 IsEmpty]: Start isEmpty. Operand 13769 states and 13957 transitions. [2023-02-16 04:00:05,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2023-02-16 04:00:05,968 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:00:05,968 INFO L195 NwaCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2023-02-16 04:00:05,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-02-16 04:00:06,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:00:06,174 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:00:06,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:00:06,174 INFO L85 PathProgramCache]: Analyzing trace with hash 169614914, now seen corresponding path program 4 times [2023-02-16 04:00:06,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:00:06,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035107037] [2023-02-16 04:00:06,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:00:06,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:00:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:06,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-16 04:00:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:06,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:06,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:07,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:07,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:07,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:07,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:08,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:08,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:08,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:08,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:08,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:08,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:08,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:08,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:08,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:08,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:08,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:09,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:09,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:09,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:09,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:09,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:09,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:09,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:09,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:09,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:09,434 INFO L134 CoverageAnalysis]: Checked inductivity of 3038 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2023-02-16 04:00:09,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:00:09,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035107037] [2023-02-16 04:00:09,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035107037] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:00:09,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655030325] [2023-02-16 04:00:09,435 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-16 04:00:09,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:00:09,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:00:09,436 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:00:09,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-16 04:00:09,586 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-16 04:00:09,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:00:09,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 47 conjunts are in the unsatisfiable core [2023-02-16 04:00:09,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:00:09,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3038 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2023-02-16 04:00:09,812 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:00:37,835 INFO L134 CoverageAnalysis]: Checked inductivity of 3038 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2023-02-16 04:00:37,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655030325] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:00:37,835 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:00:37,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 63 [2023-02-16 04:00:37,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186914422] [2023-02-16 04:00:37,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:00:37,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2023-02-16 04:00:37,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:00:37,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2023-02-16 04:00:37,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2023-02-16 04:00:37,838 INFO L87 Difference]: Start difference. First operand 13769 states and 13957 transitions. Second operand has 64 states, 63 states have (on average 3.0952380952380953) internal successors, (195), 64 states have internal predecessors, (195), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2023-02-16 04:00:38,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:00:38,071 INFO L93 Difference]: Finished difference Result 19058 states and 20005 transitions. [2023-02-16 04:00:38,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-02-16 04:00:38,072 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 3.0952380952380953) internal successors, (195), 64 states have internal predecessors, (195), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) Word has length 280 [2023-02-16 04:00:38,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:00:38,105 INFO L225 Difference]: With dead ends: 19058 [2023-02-16 04:00:38,106 INFO L226 Difference]: Without dead ends: 17589 [2023-02-16 04:00:38,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 557 SyntacticMatches, 32 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3426 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1055, Invalid=2977, Unknown=0, NotChecked=0, Total=4032 [2023-02-16 04:00:38,117 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 2 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 04:00:38,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 103 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 04:00:38,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17589 states. [2023-02-16 04:00:38,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17589 to 17589. [2023-02-16 04:00:38,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17589 states, 15042 states have (on average 1.0105704028719584) internal successors, (15201), 15013 states have internal predecessors, (15201), 96 states have call successors, (96), 95 states have call predecessors, (96), 2449 states have return successors, (2480), 2480 states have call predecessors, (2480), 95 states have call successors, (2480) [2023-02-16 04:00:38,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17589 states to 17589 states and 17777 transitions. [2023-02-16 04:00:38,333 INFO L78 Accepts]: Start accepts. Automaton has 17589 states and 17777 transitions. Word has length 280 [2023-02-16 04:00:38,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:00:38,333 INFO L495 AbstractCegarLoop]: Abstraction has 17589 states and 17777 transitions. [2023-02-16 04:00:38,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 3.0952380952380953) internal successors, (195), 64 states have internal predecessors, (195), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2023-02-16 04:00:38,334 INFO L276 IsEmpty]: Start isEmpty. Operand 17589 states and 17777 transitions. [2023-02-16 04:00:38,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2023-02-16 04:00:38,345 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:00:38,345 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 31, 31, 30, 30, 30, 1, 1, 1, 1, 1, 1] [2023-02-16 04:00:38,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-16 04:00:38,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-02-16 04:00:38,550 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:00:38,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:00:38,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1751849538, now seen corresponding path program 5 times [2023-02-16 04:00:38,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:00:38,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974401213] [2023-02-16 04:00:38,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:00:38,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:00:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:38,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-02-16 04:00:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:39,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:39,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:40,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:40,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:40,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:40,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:41,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:41,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:41,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:41,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:42,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:42,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:42,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:42,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:42,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:43,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:43,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:43,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:43,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:43,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:43,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:43,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:43,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:43,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:43,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:43,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:43,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:43,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:43,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:43,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:44,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-02-16 04:00:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:00:44,051 INFO L134 CoverageAnalysis]: Checked inductivity of 5582 backedges. 3135 proven. 242 refuted. 0 times theorem prover too weak. 2205 trivial. 0 not checked. [2023-02-16 04:00:44,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:00:44,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974401213] [2023-02-16 04:00:44,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974401213] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:00:44,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464803871] [2023-02-16 04:00:44,052 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-16 04:00:44,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:00:44,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:00:44,053 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:00:44,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-16 04:00:44,806 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2023-02-16 04:00:44,806 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:00:44,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 66 conjunts are in the unsatisfiable core [2023-02-16 04:00:44,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:00:45,176 INFO L134 CoverageAnalysis]: Checked inductivity of 5582 backedges. 3195 proven. 152 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2023-02-16 04:00:45,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:01:55,362 INFO L134 CoverageAnalysis]: Checked inductivity of 5582 backedges. 3195 proven. 1922 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-02-16 04:01:55,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464803871] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:01:55,363 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:01:55,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 37, 67] total 71 [2023-02-16 04:01:55,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571371386] [2023-02-16 04:01:55,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:01:55,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2023-02-16 04:01:55,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:01:55,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2023-02-16 04:01:55,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1169, Invalid=3801, Unknown=0, NotChecked=0, Total=4970 [2023-02-16 04:01:55,365 INFO L87 Difference]: Start difference. First operand 17589 states and 17777 transitions. Second operand has 71 states, 70 states have (on average 4.642857142857143) internal successors, (325), 70 states have internal predecessors, (325), 34 states have call successors, (34), 2 states have call predecessors, (34), 32 states have return successors, (91), 31 states have call predecessors, (91), 33 states have call successors, (91) [2023-02-16 04:01:56,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:01:56,125 INFO L93 Difference]: Finished difference Result 17965 states and 18154 transitions. [2023-02-16 04:01:56,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-02-16 04:01:56,125 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 70 states have (on average 4.642857142857143) internal successors, (325), 70 states have internal predecessors, (325), 34 states have call successors, (34), 2 states have call predecessors, (34), 32 states have return successors, (91), 31 states have call predecessors, (91), 33 states have call successors, (91) Word has length 376 [2023-02-16 04:01:56,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:01:56,128 INFO L225 Difference]: With dead ends: 17965 [2023-02-16 04:01:56,128 INFO L226 Difference]: Without dead ends: 480 [2023-02-16 04:01:56,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 880 GetRequests, 744 SyntacticMatches, 35 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1615 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=3348, Invalid=7158, Unknown=0, NotChecked=0, Total=10506 [2023-02-16 04:01:56,146 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 63 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:01:56,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 1185 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:01:56,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-02-16 04:01:56,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 478. [2023-02-16 04:01:56,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 382 states have (on average 1.0026178010471205) internal successors, (383), 382 states have internal predecessors, (383), 95 states have call successors, (95), 95 states have call predecessors, (95), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:01:56,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 478 transitions. [2023-02-16 04:01:56,160 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 478 transitions. Word has length 376 [2023-02-16 04:01:56,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:01:56,160 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 478 transitions. [2023-02-16 04:01:56,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 70 states have (on average 4.642857142857143) internal successors, (325), 70 states have internal predecessors, (325), 34 states have call successors, (34), 2 states have call predecessors, (34), 32 states have return successors, (91), 31 states have call predecessors, (91), 33 states have call successors, (91) [2023-02-16 04:01:56,161 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 478 transitions. [2023-02-16 04:01:56,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2023-02-16 04:01:56,165 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:01:56,165 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 1, 1, 1, 1, 1] [2023-02-16 04:01:56,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-16 04:01:56,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-02-16 04:01:56,374 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:01:56,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:01:56,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1283555599, now seen corresponding path program 6 times [2023-02-16 04:01:56,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:01:56,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778091437] [2023-02-16 04:01:56,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:01:56,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:01:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:02:09,802 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:02:09,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:02:09,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778091437] [2023-02-16 04:02:09,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778091437] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:02:09,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180488778] [2023-02-16 04:02:09,803 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-16 04:02:09,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:02:09,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:02:09,805 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:02:09,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-16 04:02:11,970 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-16 04:02:11,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:02:11,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-16 04:02:11,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:02:12,475 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:02:12,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:02:31,158 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:02:31,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180488778] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:02:31,165 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:02:31,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-02-16 04:02:31,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353434918] [2023-02-16 04:02:31,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:02:31,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-02-16 04:02:31,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:02:31,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-02-16 04:02:31,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36676, Invalid=110396, Unknown=0, NotChecked=0, Total=147072 [2023-02-16 04:02:31,179 INFO L87 Difference]: Start difference. First operand 478 states and 478 transitions. Second operand has 384 states, 381 states have (on average 2.0) internal successors, (762), 194 states have internal predecessors, (762), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:02:59,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:02:59,438 INFO L93 Difference]: Finished difference Result 961 states and 1056 transitions. [2023-02-16 04:02:59,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-02-16 04:02:59,438 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 381 states have (on average 2.0) internal successors, (762), 194 states have internal predecessors, (762), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 477 [2023-02-16 04:02:59,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:02:59,441 INFO L225 Difference]: With dead ends: 961 [2023-02-16 04:02:59,441 INFO L226 Difference]: Without dead ends: 960 [2023-02-16 04:02:59,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1334 GetRequests, 761 SyntacticMatches, 1 SemanticMatches, 572 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71820 ImplicationChecksByTransitivity, 40.9s TimeCoverageRelationStatistics Valid=91301, Invalid=237601, Unknown=0, NotChecked=0, Total=328902 [2023-02-16 04:02:59,452 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3413 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3413 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-02-16 04:02:59,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3413 Valid, 44 Invalid, 1737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-02-16 04:02:59,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2023-02-16 04:02:59,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 958. [2023-02-16 04:02:59,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 766 states have (on average 1.0013054830287207) internal successors, (767), 766 states have internal predecessors, (767), 191 states have call successors, (191), 191 states have call predecessors, (191), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:02:59,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 958 transitions. [2023-02-16 04:02:59,478 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 958 transitions. Word has length 477 [2023-02-16 04:02:59,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:02:59,479 INFO L495 AbstractCegarLoop]: Abstraction has 958 states and 958 transitions. [2023-02-16 04:02:59,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 381 states have (on average 2.0) internal successors, (762), 194 states have internal predecessors, (762), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:02:59,480 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 958 transitions. [2023-02-16 04:02:59,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2023-02-16 04:02:59,485 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:02:59,486 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 1, 1, 1, 1, 1] [2023-02-16 04:02:59,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-16 04:02:59,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-16 04:02:59,701 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-16 04:02:59,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:02:59,702 INFO L85 PathProgramCache]: Analyzing trace with hash -410403569, now seen corresponding path program 7 times [2023-02-16 04:02:59,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:02:59,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111277477] [2023-02-16 04:02:59,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:02:59,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:02:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:53,970 INFO L134 CoverageAnalysis]: Checked inductivity of 90345 backedges. 0 proven. 90345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:03:53,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:53,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111277477] [2023-02-16 04:03:53,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111277477] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:53,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824537011] [2023-02-16 04:03:53,971 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-16 04:03:53,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:53,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:53,972 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:53,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process