./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 791161d1 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/bitvector/soft_float_4-3a.c.cil.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 c7e459611ed6ff9d4c49aa04980ca7f1d5aaaf97e8fc0116c264955df4ed453a --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 13:34:21,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 13:34:21,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 13:34:21,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 13:34:21,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 13:34:21,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 13:34:21,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 13:34:21,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 13:34:21,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 13:34:21,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 13:34:21,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 13:34:21,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 13:34:21,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 13:34:21,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 13:34:21,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 13:34:21,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 13:34:21,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 13:34:21,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 13:34:21,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 13:34:21,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 13:34:21,404 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 13:34:21,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 13:34:21,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 13:34:21,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 13:34:21,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 13:34:21,414 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 13:34:21,414 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 13:34:21,415 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 13:34:21,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 13:34:21,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 13:34:21,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 13:34:21,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 13:34:21,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 13:34:21,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 13:34:21,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 13:34:21,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 13:34:21,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 13:34:21,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 13:34:21,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 13:34:21,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 13:34:21,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 13:34:21,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 13:34:21,426 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-23 13:34:21,461 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 13:34:21,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 13:34:21,462 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 13:34:21,462 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 13:34:21,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 13:34:21,463 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 13:34:21,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 13:34:21,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 13:34:21,464 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 13:34:21,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 13:34:21,465 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 13:34:21,465 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 13:34:21,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 13:34:21,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 13:34:21,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 13:34:21,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 13:34:21,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 13:34:21,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 13:34:21,467 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-23 13:34:21,467 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 13:34:21,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 13:34:21,467 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 13:34:21,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 13:34:21,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 13:34:21,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 13:34:21,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 13:34:21,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:34:21,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 13:34:21,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 13:34:21,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 13:34:21,471 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 13:34:21,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 13:34:21,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 13:34:21,471 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7e459611ed6ff9d4c49aa04980ca7f1d5aaaf97e8fc0116c264955df4ed453a [2022-07-23 13:34:21,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 13:34:21,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 13:34:21,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 13:34:21,714 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 13:34:21,714 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 13:34:21,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2022-07-23 13:34:21,787 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26dc15387/511b96940beb44fc85d312e6bccd3f4e/FLAG9ac5a3307 [2022-07-23 13:34:22,184 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 13:34:22,184 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2022-07-23 13:34:22,189 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26dc15387/511b96940beb44fc85d312e6bccd3f4e/FLAG9ac5a3307 [2022-07-23 13:34:22,198 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26dc15387/511b96940beb44fc85d312e6bccd3f4e [2022-07-23 13:34:22,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 13:34:22,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 13:34:22,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 13:34:22,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 13:34:22,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 13:34:22,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:34:22" (1/1) ... [2022-07-23 13:34:22,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c6a2e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:22, skipping insertion in model container [2022-07-23 13:34:22,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:34:22" (1/1) ... [2022-07-23 13:34:22,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 13:34:22,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 13:34:22,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c[730,743] [2022-07-23 13:34:22,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:34:22,402 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 13:34:22,411 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c[730,743] [2022-07-23 13:34:22,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:34:22,450 INFO L208 MainTranslator]: Completed translation [2022-07-23 13:34:22,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:22 WrapperNode [2022-07-23 13:34:22,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 13:34:22,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 13:34:22,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 13:34:22,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 13:34:22,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:22" (1/1) ... [2022-07-23 13:34:22,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:22" (1/1) ... [2022-07-23 13:34:22,478 INFO L137 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-07-23 13:34:22,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 13:34:22,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 13:34:22,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 13:34:22,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 13:34:22,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:22" (1/1) ... [2022-07-23 13:34:22,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:22" (1/1) ... [2022-07-23 13:34:22,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:22" (1/1) ... [2022-07-23 13:34:22,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:22" (1/1) ... [2022-07-23 13:34:22,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:22" (1/1) ... [2022-07-23 13:34:22,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:22" (1/1) ... [2022-07-23 13:34:22,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:22" (1/1) ... [2022-07-23 13:34:22,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 13:34:22,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 13:34:22,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 13:34:22,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 13:34:22,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:22" (1/1) ... [2022-07-23 13:34:22,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:34:22,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:22,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-23 13:34:22,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-23 13:34:22,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 13:34:22,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 13:34:22,580 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-23 13:34:22,580 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-23 13:34:22,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 13:34:22,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 13:34:22,583 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2022-07-23 13:34:22,584 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2022-07-23 13:34:22,584 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-23 13:34:22,585 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-23 13:34:22,645 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 13:34:22,647 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 13:34:23,029 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 13:34:23,036 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 13:34:23,040 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 13:34:23,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:34:23 BoogieIcfgContainer [2022-07-23 13:34:23,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 13:34:23,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 13:34:23,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 13:34:23,047 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 13:34:23,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:34:22" (1/3) ... [2022-07-23 13:34:23,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523edb6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:34:23, skipping insertion in model container [2022-07-23 13:34:23,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:22" (2/3) ... [2022-07-23 13:34:23,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523edb6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:34:23, skipping insertion in model container [2022-07-23 13:34:23,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:34:23" (3/3) ... [2022-07-23 13:34:23,050 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2022-07-23 13:34:23,079 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 13:34:23,079 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-07-23 13:34:23,132 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 13:34:23,137 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2e4c665c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@a5bfbc0 [2022-07-23 13:34:23,137 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-07-23 13:34:23,141 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 91 states have (on average 1.7692307692307692) internal successors, (161), 111 states have internal predecessors, (161), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-23 13:34:23,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-23 13:34:23,147 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:23,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:23,148 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:23,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:23,152 INFO L85 PathProgramCache]: Analyzing trace with hash -618414996, now seen corresponding path program 1 times [2022-07-23 13:34:23,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:23,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983082545] [2022-07-23 13:34:23,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:23,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:23,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:23,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:23,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983082545] [2022-07-23 13:34:23,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983082545] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:23,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:23,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 13:34:23,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120856191] [2022-07-23 13:34:23,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:23,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-23 13:34:23,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:23,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-23 13:34:23,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-23 13:34:23,334 INFO L87 Difference]: Start difference. First operand has 124 states, 91 states have (on average 1.7692307692307692) internal successors, (161), 111 states have internal predecessors, (161), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-07-23 13:34:23,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:23,390 INFO L93 Difference]: Finished difference Result 243 states and 363 transitions. [2022-07-23 13:34:23,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-23 13:34:23,392 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 9 [2022-07-23 13:34:23,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:23,406 INFO L225 Difference]: With dead ends: 243 [2022-07-23 13:34:23,406 INFO L226 Difference]: Without dead ends: 112 [2022-07-23 13:34:23,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-23 13:34:23,418 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:23,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:23,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-07-23 13:34:23,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2022-07-23 13:34:23,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 83 states have (on average 1.5783132530120483) internal successors, (131), 101 states have internal predecessors, (131), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-23 13:34:23,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 146 transitions. [2022-07-23 13:34:23,478 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 146 transitions. Word has length 9 [2022-07-23 13:34:23,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:23,479 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 146 transitions. [2022-07-23 13:34:23,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-07-23 13:34:23,479 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 146 transitions. [2022-07-23 13:34:23,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-23 13:34:23,481 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:23,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:23,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 13:34:23,482 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:23,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:23,483 INFO L85 PathProgramCache]: Analyzing trace with hash -619356344, now seen corresponding path program 1 times [2022-07-23 13:34:23,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:23,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094907787] [2022-07-23 13:34:23,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:23,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:23,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:23,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:23,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:23,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094907787] [2022-07-23 13:34:23,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094907787] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:23,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:23,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:34:23,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147942023] [2022-07-23 13:34:23,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:23,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:34:23,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:23,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:34:23,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:23,570 INFO L87 Difference]: Start difference. First operand 112 states and 146 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-07-23 13:34:23,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:23,703 INFO L93 Difference]: Finished difference Result 283 states and 383 transitions. [2022-07-23 13:34:23,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:34:23,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 9 [2022-07-23 13:34:23,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:23,709 INFO L225 Difference]: With dead ends: 283 [2022-07-23 13:34:23,709 INFO L226 Difference]: Without dead ends: 174 [2022-07-23 13:34:23,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:34:23,713 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 106 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:23,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 388 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:23,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-07-23 13:34:23,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 161. [2022-07-23 13:34:23,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 131 states have (on average 1.5725190839694656) internal successors, (206), 149 states have internal predecessors, (206), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-23 13:34:23,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 221 transitions. [2022-07-23 13:34:23,737 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 221 transitions. Word has length 9 [2022-07-23 13:34:23,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:23,741 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 221 transitions. [2022-07-23 13:34:23,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-07-23 13:34:23,742 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 221 transitions. [2022-07-23 13:34:23,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-23 13:34:23,743 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:23,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:23,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 13:34:23,744 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:23,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:23,748 INFO L85 PathProgramCache]: Analyzing trace with hash -2023794271, now seen corresponding path program 1 times [2022-07-23 13:34:23,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:23,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655238325] [2022-07-23 13:34:23,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:23,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:23,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:23,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:23,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:23,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655238325] [2022-07-23 13:34:23,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655238325] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:23,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:23,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 13:34:23,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819065108] [2022-07-23 13:34:23,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:23,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:34:23,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:23,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:34:23,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:34:23,814 INFO L87 Difference]: Start difference. First operand 161 states and 221 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-07-23 13:34:23,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:23,930 INFO L93 Difference]: Finished difference Result 196 states and 260 transitions. [2022-07-23 13:34:23,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:34:23,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 13 [2022-07-23 13:34:23,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:23,932 INFO L225 Difference]: With dead ends: 196 [2022-07-23 13:34:23,932 INFO L226 Difference]: Without dead ends: 193 [2022-07-23 13:34:23,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:23,936 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 161 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:23,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 519 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:23,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-07-23 13:34:23,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 168. [2022-07-23 13:34:23,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 138 states have (on average 1.5724637681159421) internal successors, (217), 156 states have internal predecessors, (217), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-23 13:34:23,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 232 transitions. [2022-07-23 13:34:23,954 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 232 transitions. Word has length 13 [2022-07-23 13:34:23,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:23,954 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 232 transitions. [2022-07-23 13:34:23,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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) [2022-07-23 13:34:23,955 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 232 transitions. [2022-07-23 13:34:23,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-23 13:34:23,956 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:23,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:23,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 13:34:23,956 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:23,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:23,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1686887160, now seen corresponding path program 1 times [2022-07-23 13:34:23,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:23,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969960835] [2022-07-23 13:34:23,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:23,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:23,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:24,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:24,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:24,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969960835] [2022-07-23 13:34:24,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969960835] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:24,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:24,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 13:34:24,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312869498] [2022-07-23 13:34:24,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:24,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:34:24,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:24,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:34:24,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:34:24,015 INFO L87 Difference]: Start difference. First operand 168 states and 232 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-07-23 13:34:24,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:24,147 INFO L93 Difference]: Finished difference Result 316 states and 422 transitions. [2022-07-23 13:34:24,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:34:24,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 14 [2022-07-23 13:34:24,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:24,150 INFO L225 Difference]: With dead ends: 316 [2022-07-23 13:34:24,151 INFO L226 Difference]: Without dead ends: 203 [2022-07-23 13:34:24,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:24,157 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 165 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:24,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 529 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:24,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-07-23 13:34:24,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 172. [2022-07-23 13:34:24,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 142 states have (on average 1.5492957746478873) internal successors, (220), 160 states have internal predecessors, (220), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-23 13:34:24,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 235 transitions. [2022-07-23 13:34:24,171 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 235 transitions. Word has length 14 [2022-07-23 13:34:24,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:24,171 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 235 transitions. [2022-07-23 13:34:24,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2022-07-23 13:34:24,172 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 235 transitions. [2022-07-23 13:34:24,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-23 13:34:24,172 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:24,173 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:24,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 13:34:24,173 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:24,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:24,174 INFO L85 PathProgramCache]: Analyzing trace with hash 564430704, now seen corresponding path program 1 times [2022-07-23 13:34:24,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:24,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794459573] [2022-07-23 13:34:24,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:24,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:24,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:24,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:24,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:24,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:24,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794459573] [2022-07-23 13:34:24,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794459573] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:24,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731715848] [2022-07-23 13:34:24,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:24,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:24,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:24,221 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) [2022-07-23 13:34:24,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 13:34:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:24,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:34:24,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:24,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:24,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:24,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731715848] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:24,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:24,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-23 13:34:24,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627151181] [2022-07-23 13:34:24,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:24,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:34:24,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:24,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:34:24,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:34:24,340 INFO L87 Difference]: Start difference. First operand 172 states and 235 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:34:24,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:24,470 INFO L93 Difference]: Finished difference Result 242 states and 332 transitions. [2022-07-23 13:34:24,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:34:24,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-07-23 13:34:24,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:24,472 INFO L225 Difference]: With dead ends: 242 [2022-07-23 13:34:24,472 INFO L226 Difference]: Without dead ends: 238 [2022-07-23 13:34:24,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:24,473 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 122 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:24,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 485 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:24,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-07-23 13:34:24,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 208. [2022-07-23 13:34:24,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 178 states have (on average 1.5730337078651686) internal successors, (280), 195 states have internal predecessors, (280), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-23 13:34:24,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 295 transitions. [2022-07-23 13:34:24,483 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 295 transitions. Word has length 16 [2022-07-23 13:34:24,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:24,484 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 295 transitions. [2022-07-23 13:34:24,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:34:24,484 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 295 transitions. [2022-07-23 13:34:24,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-23 13:34:24,485 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:24,485 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:24,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:24,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:24,700 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:24,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:24,700 INFO L85 PathProgramCache]: Analyzing trace with hash -864836854, now seen corresponding path program 1 times [2022-07-23 13:34:24,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:24,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939030904] [2022-07-23 13:34:24,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:24,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:24,734 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:24,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:24,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939030904] [2022-07-23 13:34:24,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939030904] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:24,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460339948] [2022-07-23 13:34:24,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:24,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:24,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:24,736 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) [2022-07-23 13:34:24,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-23 13:34:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:24,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:34:24,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:24,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:24,812 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:24,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460339948] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:24,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:24,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-23 13:34:24,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002835506] [2022-07-23 13:34:24,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:24,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:34:24,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:24,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:34:24,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:24,816 INFO L87 Difference]: Start difference. First operand 208 states and 295 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-07-23 13:34:24,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:24,872 INFO L93 Difference]: Finished difference Result 260 states and 366 transitions. [2022-07-23 13:34:24,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:34:24,873 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 15 [2022-07-23 13:34:24,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:24,874 INFO L225 Difference]: With dead ends: 260 [2022-07-23 13:34:24,875 INFO L226 Difference]: Without dead ends: 258 [2022-07-23 13:34:24,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:24,876 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 26 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:24,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 417 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:24,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-07-23 13:34:24,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 201. [2022-07-23 13:34:24,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 171 states have (on average 1.5497076023391814) internal successors, (265), 188 states have internal predecessors, (265), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-23 13:34:24,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 280 transitions. [2022-07-23 13:34:24,884 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 280 transitions. Word has length 15 [2022-07-23 13:34:24,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:24,885 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 280 transitions. [2022-07-23 13:34:24,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2022-07-23 13:34:24,885 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 280 transitions. [2022-07-23 13:34:24,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-23 13:34:24,886 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:24,886 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:24,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:25,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-23 13:34:25,100 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:25,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:25,100 INFO L85 PathProgramCache]: Analyzing trace with hash 317482697, now seen corresponding path program 1 times [2022-07-23 13:34:25,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:25,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150388697] [2022-07-23 13:34:25,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:25,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:25,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:25,138 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-23 13:34:25,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:25,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150388697] [2022-07-23 13:34:25,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150388697] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:25,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799368889] [2022-07-23 13:34:25,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:25,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:25,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:25,140 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) [2022-07-23 13:34:25,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-23 13:34:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:25,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 13:34:25,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:25,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-23 13:34:25,197 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:25,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799368889] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:25,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:25,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2022-07-23 13:34:25,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238487086] [2022-07-23 13:34:25,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:25,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:34:25,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:25,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:34:25,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:25,199 INFO L87 Difference]: Start difference. First operand 201 states and 280 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:34:25,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:25,230 INFO L93 Difference]: Finished difference Result 210 states and 289 transitions. [2022-07-23 13:34:25,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:34:25,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-07-23 13:34:25,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:25,232 INFO L225 Difference]: With dead ends: 210 [2022-07-23 13:34:25,232 INFO L226 Difference]: Without dead ends: 209 [2022-07-23 13:34:25,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:25,233 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 3 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:25,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 266 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:25,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-07-23 13:34:25,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 198. [2022-07-23 13:34:25,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 169 states have (on average 1.5384615384615385) internal successors, (260), 185 states have internal predecessors, (260), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-23 13:34:25,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 275 transitions. [2022-07-23 13:34:25,245 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 275 transitions. Word has length 17 [2022-07-23 13:34:25,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:25,245 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 275 transitions. [2022-07-23 13:34:25,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:34:25,246 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 275 transitions. [2022-07-23 13:34:25,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-23 13:34:25,247 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:25,247 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:25,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:25,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:25,451 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:25,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:25,452 INFO L85 PathProgramCache]: Analyzing trace with hash 2139477144, now seen corresponding path program 1 times [2022-07-23 13:34:25,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:25,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965887706] [2022-07-23 13:34:25,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:25,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:25,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:25,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:25,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:25,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965887706] [2022-07-23 13:34:25,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965887706] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:25,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940619818] [2022-07-23 13:34:25,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:25,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:25,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:25,502 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) [2022-07-23 13:34:25,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-23 13:34:25,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:25,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:34:25,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:25,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:25,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:25,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940619818] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:25,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:25,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-23 13:34:25,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737880344] [2022-07-23 13:34:25,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:25,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:34:25,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:25,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:34:25,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:34:25,569 INFO L87 Difference]: Start difference. First operand 198 states and 275 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:34:25,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:25,649 INFO L93 Difference]: Finished difference Result 241 states and 329 transitions. [2022-07-23 13:34:25,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:34:25,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 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 18 [2022-07-23 13:34:25,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:25,651 INFO L225 Difference]: With dead ends: 241 [2022-07-23 13:34:25,651 INFO L226 Difference]: Without dead ends: 238 [2022-07-23 13:34:25,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:25,652 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 107 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:25,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 486 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:25,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-07-23 13:34:25,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 206. [2022-07-23 13:34:25,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 177 states have (on average 1.5310734463276836) internal successors, (271), 193 states have internal predecessors, (271), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-23 13:34:25,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 286 transitions. [2022-07-23 13:34:25,661 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 286 transitions. Word has length 18 [2022-07-23 13:34:25,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:25,662 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 286 transitions. [2022-07-23 13:34:25,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:34:25,662 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 286 transitions. [2022-07-23 13:34:25,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-23 13:34:25,663 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:25,663 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:25,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:25,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:25,885 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:25,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:25,886 INFO L85 PathProgramCache]: Analyzing trace with hash 251531834, now seen corresponding path program 1 times [2022-07-23 13:34:25,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:25,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027020164] [2022-07-23 13:34:25,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:25,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:25,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:25,929 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-23 13:34:25,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:25,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027020164] [2022-07-23 13:34:25,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027020164] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:25,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:25,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:34:25,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535125348] [2022-07-23 13:34:25,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:25,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:34:25,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:25,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:34:25,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:25,942 INFO L87 Difference]: Start difference. First operand 206 states and 286 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-07-23 13:34:25,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:25,995 INFO L93 Difference]: Finished difference Result 261 states and 362 transitions. [2022-07-23 13:34:25,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:34:25,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 19 [2022-07-23 13:34:25,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:25,998 INFO L225 Difference]: With dead ends: 261 [2022-07-23 13:34:25,998 INFO L226 Difference]: Without dead ends: 259 [2022-07-23 13:34:25,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:25,999 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 27 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:25,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 287 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:26,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-07-23 13:34:26,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 206. [2022-07-23 13:34:26,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 177 states have (on average 1.5197740112994351) internal successors, (269), 193 states have internal predecessors, (269), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-23 13:34:26,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 284 transitions. [2022-07-23 13:34:26,018 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 284 transitions. Word has length 19 [2022-07-23 13:34:26,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:26,018 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 284 transitions. [2022-07-23 13:34:26,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2022-07-23 13:34:26,019 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 284 transitions. [2022-07-23 13:34:26,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-23 13:34:26,019 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:26,020 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:26,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-23 13:34:26,020 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:26,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:26,020 INFO L85 PathProgramCache]: Analyzing trace with hash -125890422, now seen corresponding path program 1 times [2022-07-23 13:34:26,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:26,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286915221] [2022-07-23 13:34:26,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:26,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:26,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:26,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:26,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:26,065 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:26,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:26,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286915221] [2022-07-23 13:34:26,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286915221] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:26,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455930948] [2022-07-23 13:34:26,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:26,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:26,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:26,068 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) [2022-07-23 13:34:26,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-23 13:34:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:26,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:34:26,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:26,149 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:26,149 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:26,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455930948] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:26,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:26,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-23 13:34:26,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12838108] [2022-07-23 13:34:26,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:26,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:34:26,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:26,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:34:26,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:34:26,151 INFO L87 Difference]: Start difference. First operand 206 states and 284 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:34:26,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:26,236 INFO L93 Difference]: Finished difference Result 236 states and 325 transitions. [2022-07-23 13:34:26,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:34:26,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-07-23 13:34:26,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:26,239 INFO L225 Difference]: With dead ends: 236 [2022-07-23 13:34:26,239 INFO L226 Difference]: Without dead ends: 233 [2022-07-23 13:34:26,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:26,240 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 112 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:26,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 483 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:26,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-07-23 13:34:26,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 194. [2022-07-23 13:34:26,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 168 states have (on average 1.4821428571428572) internal successors, (249), 181 states have internal predecessors, (249), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-23 13:34:26,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 264 transitions. [2022-07-23 13:34:26,249 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 264 transitions. Word has length 23 [2022-07-23 13:34:26,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:26,251 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 264 transitions. [2022-07-23 13:34:26,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:34:26,252 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 264 transitions. [2022-07-23 13:34:26,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-23 13:34:26,252 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:26,253 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:26,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:26,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-23 13:34:26,477 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:26,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:26,477 INFO L85 PathProgramCache]: Analyzing trace with hash 165838642, now seen corresponding path program 1 times [2022-07-23 13:34:26,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:26,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838001270] [2022-07-23 13:34:26,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:26,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:26,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:26,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:26,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:26,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:26,516 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:26,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:26,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838001270] [2022-07-23 13:34:26,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838001270] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:26,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199432463] [2022-07-23 13:34:26,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:26,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:26,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:26,518 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) [2022-07-23 13:34:26,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-23 13:34:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:26,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:34:26,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:26,600 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:26,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:26,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199432463] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:26,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:26,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-23 13:34:26,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389858750] [2022-07-23 13:34:26,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:26,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:34:26,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:26,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:34:26,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:34:26,604 INFO L87 Difference]: Start difference. First operand 194 states and 264 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:34:26,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:26,678 INFO L93 Difference]: Finished difference Result 224 states and 304 transitions. [2022-07-23 13:34:26,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:34:26,679 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-07-23 13:34:26,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:26,680 INFO L225 Difference]: With dead ends: 224 [2022-07-23 13:34:26,680 INFO L226 Difference]: Without dead ends: 221 [2022-07-23 13:34:26,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:26,681 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 96 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:26,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 489 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:26,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-07-23 13:34:26,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 183. [2022-07-23 13:34:26,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 160 states have (on average 1.4625) internal successors, (234), 170 states have internal predecessors, (234), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-23 13:34:26,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 249 transitions. [2022-07-23 13:34:26,693 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 249 transitions. Word has length 25 [2022-07-23 13:34:26,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:26,693 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 249 transitions. [2022-07-23 13:34:26,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:34:26,693 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 249 transitions. [2022-07-23 13:34:26,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-23 13:34:26,694 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:26,694 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:26,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:26,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:26,918 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:26,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:26,918 INFO L85 PathProgramCache]: Analyzing trace with hash 340378026, now seen corresponding path program 1 times [2022-07-23 13:34:26,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:26,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733706355] [2022-07-23 13:34:26,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:26,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:26,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:26,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:27,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 13:34:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:27,025 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:27,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:27,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733706355] [2022-07-23 13:34:27,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733706355] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:27,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712430374] [2022-07-23 13:34:27,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:27,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:27,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:27,027 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) [2022-07-23 13:34:27,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-23 13:34:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:27,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-23 13:34:27,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:27,154 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-23 13:34:27,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:27,332 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:27,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712430374] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:27,333 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:27,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 9] total 19 [2022-07-23 13:34:27,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298967960] [2022-07-23 13:34:27,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:27,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-23 13:34:27,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:27,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-23 13:34:27,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-07-23 13:34:27,336 INFO L87 Difference]: Start difference. First operand 183 states and 249 transitions. Second operand has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 13:34:28,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:28,727 INFO L93 Difference]: Finished difference Result 601 states and 806 transitions. [2022-07-23 13:34:28,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-23 13:34:28,728 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 30 [2022-07-23 13:34:28,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:28,730 INFO L225 Difference]: With dead ends: 601 [2022-07-23 13:34:28,730 INFO L226 Difference]: Without dead ends: 423 [2022-07-23 13:34:28,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=187, Invalid=1145, Unknown=0, NotChecked=0, Total=1332 [2022-07-23 13:34:28,732 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 618 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 2032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:28,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 631 Invalid, 2032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1962 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-23 13:34:28,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-07-23 13:34:28,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 155. [2022-07-23 13:34:28,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 128 states have (on average 1.4296875) internal successors, (183), 139 states have internal predecessors, (183), 10 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2022-07-23 13:34:28,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 203 transitions. [2022-07-23 13:34:28,745 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 203 transitions. Word has length 30 [2022-07-23 13:34:28,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:28,745 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 203 transitions. [2022-07-23 13:34:28,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 13:34:28,745 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 203 transitions. [2022-07-23 13:34:28,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-23 13:34:28,746 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:28,746 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:28,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:28,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:28,959 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:28,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:28,960 INFO L85 PathProgramCache]: Analyzing trace with hash -809815083, now seen corresponding path program 1 times [2022-07-23 13:34:28,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:28,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864451236] [2022-07-23 13:34:28,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:28,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:29,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:29,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:29,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 13:34:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:29,052 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:29,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:29,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864451236] [2022-07-23 13:34:29,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864451236] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:29,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:29,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-23 13:34:29,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899697656] [2022-07-23 13:34:29,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:29,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 13:34:29,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:29,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 13:34:29,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-23 13:34:29,054 INFO L87 Difference]: Start difference. First operand 155 states and 203 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:29,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:29,591 INFO L93 Difference]: Finished difference Result 404 states and 522 transitions. [2022-07-23 13:34:29,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 13:34:29,592 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2022-07-23 13:34:29,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:29,594 INFO L225 Difference]: With dead ends: 404 [2022-07-23 13:34:29,594 INFO L226 Difference]: Without dead ends: 330 [2022-07-23 13:34:29,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-07-23 13:34:29,595 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 415 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:29,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 501 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 13:34:29,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-07-23 13:34:29,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 166. [2022-07-23 13:34:29,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 136 states have (on average 1.4044117647058822) internal successors, (191), 148 states have internal predecessors, (191), 11 states have call successors, (11), 7 states have call predecessors, (11), 9 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2022-07-23 13:34:29,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 215 transitions. [2022-07-23 13:34:29,607 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 215 transitions. Word has length 37 [2022-07-23 13:34:29,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:29,607 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 215 transitions. [2022-07-23 13:34:29,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:29,607 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 215 transitions. [2022-07-23 13:34:29,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-23 13:34:29,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:29,608 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:29,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-23 13:34:29,609 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:29,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:29,609 INFO L85 PathProgramCache]: Analyzing trace with hash 311287935, now seen corresponding path program 1 times [2022-07-23 13:34:29,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:29,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066208492] [2022-07-23 13:34:29,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:29,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:29,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:29,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:29,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 13:34:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:29,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-23 13:34:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:29,704 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:29,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:29,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066208492] [2022-07-23 13:34:29,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066208492] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:29,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992503578] [2022-07-23 13:34:29,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:29,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:29,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:29,708 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) [2022-07-23 13:34:29,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-23 13:34:29,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:29,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-23 13:34:29,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:29,917 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:29,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:29,990 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:29,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992503578] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:29,990 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:29,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 19 [2022-07-23 13:34:29,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220024546] [2022-07-23 13:34:29,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:29,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-23 13:34:29,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:29,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-23 13:34:29,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-07-23 13:34:29,992 INFO L87 Difference]: Start difference. First operand 166 states and 215 transitions. Second operand has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 13 states have internal predecessors, (42), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-23 13:34:32,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:32,289 INFO L93 Difference]: Finished difference Result 793 states and 1023 transitions. [2022-07-23 13:34:32,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-23 13:34:32,291 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 13 states have internal predecessors, (42), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 41 [2022-07-23 13:34:32,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:32,294 INFO L225 Difference]: With dead ends: 793 [2022-07-23 13:34:32,294 INFO L226 Difference]: Without dead ends: 704 [2022-07-23 13:34:32,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=213, Invalid=1193, Unknown=0, NotChecked=0, Total=1406 [2022-07-23 13:34:32,296 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 1733 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 3847 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1736 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 4044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 3847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:32,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1736 Valid, 359 Invalid, 4044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 3847 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-23 13:34:32,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2022-07-23 13:34:32,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 153. [2022-07-23 13:34:32,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 127 states have (on average 1.4094488188976377) internal successors, (179), 138 states have internal predecessors, (179), 9 states have call successors, (9), 6 states have call predecessors, (9), 7 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2022-07-23 13:34:32,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 197 transitions. [2022-07-23 13:34:32,314 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 197 transitions. Word has length 41 [2022-07-23 13:34:32,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:32,315 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 197 transitions. [2022-07-23 13:34:32,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 13 states have internal predecessors, (42), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-23 13:34:32,315 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 197 transitions. [2022-07-23 13:34:32,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-23 13:34:32,316 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:32,316 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:32,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:32,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-23 13:34:32,531 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:32,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:32,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1966221434, now seen corresponding path program 2 times [2022-07-23 13:34:32,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:32,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60945711] [2022-07-23 13:34:32,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:32,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:32,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:32,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:32,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:32,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 13:34:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:32,673 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-23 13:34:32,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:32,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60945711] [2022-07-23 13:34:32,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60945711] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:32,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:32,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-23 13:34:32,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820789949] [2022-07-23 13:34:32,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:32,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 13:34:32,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:32,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 13:34:32,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-23 13:34:32,675 INFO L87 Difference]: Start difference. First operand 153 states and 197 transitions. Second operand has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:33,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:33,531 INFO L93 Difference]: Finished difference Result 480 states and 620 transitions. [2022-07-23 13:34:33,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 13:34:33,531 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2022-07-23 13:34:33,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:33,533 INFO L225 Difference]: With dead ends: 480 [2022-07-23 13:34:33,533 INFO L226 Difference]: Without dead ends: 410 [2022-07-23 13:34:33,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-07-23 13:34:33,534 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 635 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:33,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 666 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-23 13:34:33,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-07-23 13:34:33,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 227. [2022-07-23 13:34:33,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 195 states have (on average 1.4102564102564104) internal successors, (275), 207 states have internal predecessors, (275), 13 states have call successors, (13), 7 states have call predecessors, (13), 9 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2022-07-23 13:34:33,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 302 transitions. [2022-07-23 13:34:33,550 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 302 transitions. Word has length 41 [2022-07-23 13:34:33,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:33,550 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 302 transitions. [2022-07-23 13:34:33,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:33,550 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 302 transitions. [2022-07-23 13:34:33,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-23 13:34:33,551 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:33,551 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:33,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-23 13:34:33,552 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:33,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:33,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1519399236, now seen corresponding path program 1 times [2022-07-23 13:34:33,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:33,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770690241] [2022-07-23 13:34:33,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:33,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:33,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:33,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:33,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 13:34:33,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-23 13:34:33,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:33,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770690241] [2022-07-23 13:34:33,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770690241] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:33,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740505864] [2022-07-23 13:34:33,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:33,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:33,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:33,676 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) [2022-07-23 13:34:33,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-23 13:34:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:33,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-23 13:34:33,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:33,814 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-23 13:34:33,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:34,000 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-23 13:34:34,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740505864] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:34,000 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:34,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 16 [2022-07-23 13:34:34,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091364350] [2022-07-23 13:34:34,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:34,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-23 13:34:34,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:34,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-23 13:34:34,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-07-23 13:34:34,002 INFO L87 Difference]: Start difference. First operand 227 states and 302 transitions. Second operand has 17 states, 16 states have (on average 3.125) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-07-23 13:34:34,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:34,894 INFO L93 Difference]: Finished difference Result 624 states and 842 transitions. [2022-07-23 13:34:34,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 13:34:34,894 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.125) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 41 [2022-07-23 13:34:34,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:34,896 INFO L225 Difference]: With dead ends: 624 [2022-07-23 13:34:34,897 INFO L226 Difference]: Without dead ends: 492 [2022-07-23 13:34:34,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2022-07-23 13:34:34,900 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 526 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:34,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 677 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-23 13:34:34,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-07-23 13:34:34,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 338. [2022-07-23 13:34:34,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 294 states have (on average 1.4081632653061225) internal successors, (414), 307 states have internal predecessors, (414), 22 states have call successors, (22), 9 states have call predecessors, (22), 12 states have return successors, (26), 21 states have call predecessors, (26), 21 states have call successors, (26) [2022-07-23 13:34:34,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 462 transitions. [2022-07-23 13:34:34,939 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 462 transitions. Word has length 41 [2022-07-23 13:34:34,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:34,940 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 462 transitions. [2022-07-23 13:34:34,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.125) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-07-23 13:34:34,941 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 462 transitions. [2022-07-23 13:34:34,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-23 13:34:34,942 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:34,942 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:34,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:35,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-23 13:34:35,155 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:35,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:35,156 INFO L85 PathProgramCache]: Analyzing trace with hash -440801234, now seen corresponding path program 1 times [2022-07-23 13:34:35,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:35,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039054067] [2022-07-23 13:34:35,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:35,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:35,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:35,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:35,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 13:34:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:35,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:35,264 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:35,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:35,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039054067] [2022-07-23 13:34:35,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039054067] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:35,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689808692] [2022-07-23 13:34:35,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:35,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:35,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:35,266 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) [2022-07-23 13:34:35,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-23 13:34:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:35,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-23 13:34:35,330 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:35,379 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-23 13:34:35,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:35,523 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:35,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689808692] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:35,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-23 13:34:35,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11, 11] total 20 [2022-07-23 13:34:35,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223158435] [2022-07-23 13:34:35,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:35,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 13:34:35,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:35,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 13:34:35,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-07-23 13:34:35,525 INFO L87 Difference]: Start difference. First operand 338 states and 462 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 13:34:35,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:35,742 INFO L93 Difference]: Finished difference Result 695 states and 959 transitions. [2022-07-23 13:34:35,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 13:34:35,743 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 45 [2022-07-23 13:34:35,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:35,747 INFO L225 Difference]: With dead ends: 695 [2022-07-23 13:34:35,747 INFO L226 Difference]: Without dead ends: 607 [2022-07-23 13:34:35,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 87 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-07-23 13:34:35,751 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 174 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1769 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:35,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 1769 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:35,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-07-23 13:34:35,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 327. [2022-07-23 13:34:35,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 286 states have (on average 1.4125874125874125) internal successors, (404), 298 states have internal predecessors, (404), 21 states have call successors, (21), 8 states have call predecessors, (21), 10 states have return successors, (23), 20 states have call predecessors, (23), 20 states have call successors, (23) [2022-07-23 13:34:35,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 448 transitions. [2022-07-23 13:34:35,772 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 448 transitions. Word has length 45 [2022-07-23 13:34:35,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:35,773 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 448 transitions. [2022-07-23 13:34:35,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 13:34:35,773 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 448 transitions. [2022-07-23 13:34:35,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-23 13:34:35,774 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:35,774 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:35,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:35,999 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,SelfDestructingSolverStorable16 [2022-07-23 13:34:36,000 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:36,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:36,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1658343875, now seen corresponding path program 1 times [2022-07-23 13:34:36,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:36,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50299787] [2022-07-23 13:34:36,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:36,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:36,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:36,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:36,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 13:34:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:36,028 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:36,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:36,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50299787] [2022-07-23 13:34:36,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50299787] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:36,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278887667] [2022-07-23 13:34:36,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:36,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:36,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:36,030 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) [2022-07-23 13:34:36,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-23 13:34:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:36,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 13:34:36,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:36,110 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:36,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:36,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278887667] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:36,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:36,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2022-07-23 13:34:36,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450100575] [2022-07-23 13:34:36,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:36,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:34:36,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:36,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:34:36,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:36,113 INFO L87 Difference]: Start difference. First operand 327 states and 448 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:36,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:36,164 INFO L93 Difference]: Finished difference Result 586 states and 804 transitions. [2022-07-23 13:34:36,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:34:36,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 47 [2022-07-23 13:34:36,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:36,166 INFO L225 Difference]: With dead ends: 586 [2022-07-23 13:34:36,167 INFO L226 Difference]: Without dead ends: 351 [2022-07-23 13:34:36,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:36,168 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 10 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:36,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 246 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:36,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-07-23 13:34:36,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 337. [2022-07-23 13:34:36,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 296 states have (on average 1.3986486486486487) internal successors, (414), 308 states have internal predecessors, (414), 21 states have call successors, (21), 8 states have call predecessors, (21), 10 states have return successors, (23), 20 states have call predecessors, (23), 20 states have call successors, (23) [2022-07-23 13:34:36,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 458 transitions. [2022-07-23 13:34:36,193 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 458 transitions. Word has length 47 [2022-07-23 13:34:36,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:36,193 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 458 transitions. [2022-07-23 13:34:36,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:36,193 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 458 transitions. [2022-07-23 13:34:36,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-23 13:34:36,194 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:36,194 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:36,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:36,411 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,SelfDestructingSolverStorable17 [2022-07-23 13:34:36,411 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:36,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:36,412 INFO L85 PathProgramCache]: Analyzing trace with hash -836152950, now seen corresponding path program 1 times [2022-07-23 13:34:36,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:36,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769069384] [2022-07-23 13:34:36,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:36,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:36,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:36,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:36,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:36,503 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:36,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:36,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769069384] [2022-07-23 13:34:36,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769069384] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:36,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311800318] [2022-07-23 13:34:36,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:36,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:36,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:36,508 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) [2022-07-23 13:34:36,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-23 13:34:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:36,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-23 13:34:36,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:36,601 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:36,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:36,679 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:36,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311800318] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:36,680 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:36,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 11 [2022-07-23 13:34:36,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646021527] [2022-07-23 13:34:36,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:36,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 13:34:36,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:36,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 13:34:36,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-23 13:34:36,684 INFO L87 Difference]: Start difference. First operand 337 states and 458 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:37,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:37,834 INFO L93 Difference]: Finished difference Result 1032 states and 1414 transitions. [2022-07-23 13:34:37,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-23 13:34:37,835 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2022-07-23 13:34:37,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:37,838 INFO L225 Difference]: With dead ends: 1032 [2022-07-23 13:34:37,838 INFO L226 Difference]: Without dead ends: 919 [2022-07-23 13:34:37,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2022-07-23 13:34:37,840 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 395 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 2240 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 2286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:37,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 805 Invalid, 2286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2240 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-23 13:34:37,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-07-23 13:34:37,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 475. [2022-07-23 13:34:37,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 422 states have (on average 1.4099526066350712) internal successors, (595), 435 states have internal predecessors, (595), 30 states have call successors, (30), 10 states have call predecessors, (30), 13 states have return successors, (34), 29 states have call predecessors, (34), 29 states have call successors, (34) [2022-07-23 13:34:37,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 659 transitions. [2022-07-23 13:34:37,870 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 659 transitions. Word has length 48 [2022-07-23 13:34:37,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:37,870 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 659 transitions. [2022-07-23 13:34:37,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:37,870 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 659 transitions. [2022-07-23 13:34:37,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-23 13:34:37,871 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:37,871 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:37,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:38,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:38,085 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:38,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:38,085 INFO L85 PathProgramCache]: Analyzing trace with hash -836151028, now seen corresponding path program 1 times [2022-07-23 13:34:38,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:38,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815544611] [2022-07-23 13:34:38,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:38,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:38,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:38,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:38,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:38,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:38,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:38,171 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:38,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:38,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815544611] [2022-07-23 13:34:38,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815544611] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:38,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470746572] [2022-07-23 13:34:38,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:38,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:38,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:38,173 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) [2022-07-23 13:34:38,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-23 13:34:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:38,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-23 13:34:38,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:38,329 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-23 13:34:38,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:38,492 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-23 13:34:38,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470746572] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:38,492 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:38,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 19 [2022-07-23 13:34:38,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035863162] [2022-07-23 13:34:38,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:38,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-23 13:34:38,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:38,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-23 13:34:38,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-07-23 13:34:38,493 INFO L87 Difference]: Start difference. First operand 475 states and 659 transitions. Second operand has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 16 states have internal predecessors, (67), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 13:34:39,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:39,729 INFO L93 Difference]: Finished difference Result 1166 states and 1621 transitions. [2022-07-23 13:34:39,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-07-23 13:34:39,729 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 16 states have internal predecessors, (67), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 48 [2022-07-23 13:34:39,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:39,733 INFO L225 Difference]: With dead ends: 1166 [2022-07-23 13:34:39,733 INFO L226 Difference]: Without dead ends: 959 [2022-07-23 13:34:39,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=258, Invalid=1302, Unknown=0, NotChecked=0, Total=1560 [2022-07-23 13:34:39,735 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 657 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 1695 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:39,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 412 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1695 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-23 13:34:39,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-07-23 13:34:39,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 605. [2022-07-23 13:34:39,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 540 states have (on average 1.4166666666666667) internal successors, (765), 554 states have internal predecessors, (765), 39 states have call successors, (39), 12 states have call predecessors, (39), 16 states have return successors, (45), 38 states have call predecessors, (45), 38 states have call successors, (45) [2022-07-23 13:34:39,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 849 transitions. [2022-07-23 13:34:39,780 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 849 transitions. Word has length 48 [2022-07-23 13:34:39,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:39,781 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 849 transitions. [2022-07-23 13:34:39,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 16 states have internal predecessors, (67), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 13:34:39,781 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 849 transitions. [2022-07-23 13:34:39,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-23 13:34:39,783 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:39,783 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:39,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-07-23 13:34:39,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-07-23 13:34:39,991 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:39,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:39,992 INFO L85 PathProgramCache]: Analyzing trace with hash 2123358745, now seen corresponding path program 1 times [2022-07-23 13:34:39,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:39,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531289083] [2022-07-23 13:34:39,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:39,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:40,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:40,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:40,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:40,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:40,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:40,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:40,055 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-23 13:34:40,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:40,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531289083] [2022-07-23 13:34:40,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531289083] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:40,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716056637] [2022-07-23 13:34:40,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:40,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:40,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:40,057 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:40,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-23 13:34:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:40,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:34:40,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:40,136 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:40,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:40,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716056637] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:40,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:40,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-07-23 13:34:40,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725942021] [2022-07-23 13:34:40,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:40,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:34:40,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:40,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:34:40,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:40,138 INFO L87 Difference]: Start difference. First operand 605 states and 849 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:40,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:40,219 INFO L93 Difference]: Finished difference Result 1197 states and 1698 transitions. [2022-07-23 13:34:40,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:34:40,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2022-07-23 13:34:40,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:40,222 INFO L225 Difference]: With dead ends: 1197 [2022-07-23 13:34:40,222 INFO L226 Difference]: Without dead ends: 681 [2022-07-23 13:34:40,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:40,224 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 50 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:40,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 259 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:40,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2022-07-23 13:34:40,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 631. [2022-07-23 13:34:40,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 566 states have (on average 1.4081272084805654) internal successors, (797), 580 states have internal predecessors, (797), 39 states have call successors, (39), 12 states have call predecessors, (39), 16 states have return successors, (45), 38 states have call predecessors, (45), 38 states have call successors, (45) [2022-07-23 13:34:40,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 881 transitions. [2022-07-23 13:34:40,281 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 881 transitions. Word has length 48 [2022-07-23 13:34:40,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:40,281 INFO L495 AbstractCegarLoop]: Abstraction has 631 states and 881 transitions. [2022-07-23 13:34:40,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:40,281 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 881 transitions. [2022-07-23 13:34:40,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-23 13:34:40,282 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:40,283 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:40,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:40,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:40,500 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:40,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:40,500 INFO L85 PathProgramCache]: Analyzing trace with hash -343040408, now seen corresponding path program 1 times [2022-07-23 13:34:40,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:40,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345388606] [2022-07-23 13:34:40,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:40,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:40,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:40,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:40,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:40,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-23 13:34:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:40,551 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:40,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:40,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345388606] [2022-07-23 13:34:40,551 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345388606] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:40,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437652678] [2022-07-23 13:34:40,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:40,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:40,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:40,553 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:40,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-23 13:34:40,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:40,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 13:34:40,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:40,620 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:40,621 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:40,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437652678] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:40,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:40,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2022-07-23 13:34:40,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392342767] [2022-07-23 13:34:40,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:40,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:34:40,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:40,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:34:40,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:34:40,623 INFO L87 Difference]: Start difference. First operand 631 states and 881 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:40,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:40,688 INFO L93 Difference]: Finished difference Result 1025 states and 1440 transitions. [2022-07-23 13:34:40,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 13:34:40,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2022-07-23 13:34:40,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:40,692 INFO L225 Difference]: With dead ends: 1025 [2022-07-23 13:34:40,692 INFO L226 Difference]: Without dead ends: 653 [2022-07-23 13:34:40,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:40,694 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 15 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:40,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 378 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:40,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2022-07-23 13:34:40,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 633. [2022-07-23 13:34:40,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 568 states have (on average 1.4102112676056338) internal successors, (801), 582 states have internal predecessors, (801), 39 states have call successors, (39), 12 states have call predecessors, (39), 16 states have return successors, (45), 38 states have call predecessors, (45), 38 states have call successors, (45) [2022-07-23 13:34:40,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 885 transitions. [2022-07-23 13:34:40,739 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 885 transitions. Word has length 49 [2022-07-23 13:34:40,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:40,740 INFO L495 AbstractCegarLoop]: Abstraction has 633 states and 885 transitions. [2022-07-23 13:34:40,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:40,740 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 885 transitions. [2022-07-23 13:34:40,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-23 13:34:40,741 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:40,741 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:40,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:40,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:40,957 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:40,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:40,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1723318001, now seen corresponding path program 1 times [2022-07-23 13:34:40,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:40,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724069143] [2022-07-23 13:34:40,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:40,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:41,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:41,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:41,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 13:34:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:41,194 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:41,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:41,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724069143] [2022-07-23 13:34:41,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724069143] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:41,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:41,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 13:34:41,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752220151] [2022-07-23 13:34:41,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:41,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-23 13:34:41,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:41,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 13:34:41,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-23 13:34:41,196 INFO L87 Difference]: Start difference. First operand 633 states and 885 transitions. Second operand has 12 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:42,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:42,372 INFO L93 Difference]: Finished difference Result 1068 states and 1499 transitions. [2022-07-23 13:34:42,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 13:34:42,373 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2022-07-23 13:34:42,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:42,377 INFO L225 Difference]: With dead ends: 1068 [2022-07-23 13:34:42,377 INFO L226 Difference]: Without dead ends: 1067 [2022-07-23 13:34:42,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2022-07-23 13:34:42,378 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 650 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:42,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 580 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-23 13:34:42,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2022-07-23 13:34:42,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 629. [2022-07-23 13:34:42,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 564 states have (on average 1.4095744680851063) internal successors, (795), 578 states have internal predecessors, (795), 39 states have call successors, (39), 12 states have call predecessors, (39), 16 states have return successors, (45), 38 states have call predecessors, (45), 38 states have call successors, (45) [2022-07-23 13:34:42,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 879 transitions. [2022-07-23 13:34:42,425 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 879 transitions. Word has length 50 [2022-07-23 13:34:42,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:42,430 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 879 transitions. [2022-07-23 13:34:42,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:42,431 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 879 transitions. [2022-07-23 13:34:42,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-23 13:34:42,432 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:42,433 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:42,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-23 13:34:42,433 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:42,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:42,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1460160345, now seen corresponding path program 1 times [2022-07-23 13:34:42,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:42,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356682654] [2022-07-23 13:34:42,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:42,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:42,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:42,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:42,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 13:34:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:42,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 13:34:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:42,616 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:42,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:42,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356682654] [2022-07-23 13:34:42,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356682654] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:42,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591352939] [2022-07-23 13:34:42,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:42,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:42,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:42,619 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:42,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-23 13:34:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:42,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-23 13:34:42,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:42,787 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-23 13:34:42,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:42,869 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-23 13:34:42,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591352939] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:42,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:42,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 19 [2022-07-23 13:34:42,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211737547] [2022-07-23 13:34:42,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:42,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-23 13:34:42,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:42,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-23 13:34:42,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-07-23 13:34:42,870 INFO L87 Difference]: Start difference. First operand 629 states and 879 transitions. Second operand has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-23 13:34:47,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:47,803 INFO L93 Difference]: Finished difference Result 3384 states and 4915 transitions. [2022-07-23 13:34:47,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-07-23 13:34:47,811 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 56 [2022-07-23 13:34:47,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:47,822 INFO L225 Difference]: With dead ends: 3384 [2022-07-23 13:34:47,823 INFO L226 Difference]: Without dead ends: 2998 [2022-07-23 13:34:47,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=512, Invalid=2794, Unknown=0, NotChecked=0, Total=3306 [2022-07-23 13:34:47,826 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 2472 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 8028 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 8455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 8028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:47,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 675 Invalid, 8455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 8028 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-23 13:34:47,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2022-07-23 13:34:47,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 685. [2022-07-23 13:34:47,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 616 states have (on average 1.400974025974026) internal successors, (863), 629 states have internal predecessors, (863), 43 states have call successors, (43), 13 states have call predecessors, (43), 16 states have return successors, (48), 42 states have call predecessors, (48), 41 states have call successors, (48) [2022-07-23 13:34:47,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 954 transitions. [2022-07-23 13:34:47,898 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 954 transitions. Word has length 56 [2022-07-23 13:34:47,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:47,898 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 954 transitions. [2022-07-23 13:34:47,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-23 13:34:47,898 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 954 transitions. [2022-07-23 13:34:47,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-23 13:34:47,899 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:47,900 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:47,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:48,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-07-23 13:34:48,123 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:48,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:48,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1529476761, now seen corresponding path program 1 times [2022-07-23 13:34:48,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:48,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253824099] [2022-07-23 13:34:48,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:48,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:48,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:48,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:48,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:48,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:48,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 13:34:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:48,229 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:48,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:48,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253824099] [2022-07-23 13:34:48,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253824099] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:48,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202743290] [2022-07-23 13:34:48,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:48,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:48,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:48,236 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:48,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-23 13:34:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:48,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-23 13:34:48,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:48,350 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:48,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:48,419 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:48,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202743290] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:48,419 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:48,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 13 [2022-07-23 13:34:48,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402316945] [2022-07-23 13:34:48,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:48,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-23 13:34:48,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:48,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-23 13:34:48,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2022-07-23 13:34:48,422 INFO L87 Difference]: Start difference. First operand 685 states and 954 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 13:34:50,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:50,979 INFO L93 Difference]: Finished difference Result 2890 states and 4178 transitions. [2022-07-23 13:34:50,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-23 13:34:50,980 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2022-07-23 13:34:50,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:50,989 INFO L225 Difference]: With dead ends: 2890 [2022-07-23 13:34:50,989 INFO L226 Difference]: Without dead ends: 2755 [2022-07-23 13:34:50,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 133 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=280, Invalid=1280, Unknown=0, NotChecked=0, Total=1560 [2022-07-23 13:34:50,991 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 744 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 4867 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 5042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 4867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:50,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 632 Invalid, 5042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 4867 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-23 13:34:50,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2022-07-23 13:34:51,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 708. [2022-07-23 13:34:51,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 638 states have (on average 1.396551724137931) internal successors, (891), 650 states have internal predecessors, (891), 44 states have call successors, (44), 14 states have call predecessors, (44), 16 states have return successors, (48), 43 states have call predecessors, (48), 41 states have call successors, (48) [2022-07-23 13:34:51,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 983 transitions. [2022-07-23 13:34:51,056 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 983 transitions. Word has length 56 [2022-07-23 13:34:51,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:51,057 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 983 transitions. [2022-07-23 13:34:51,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 13:34:51,057 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 983 transitions. [2022-07-23 13:34:51,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-23 13:34:51,058 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:51,059 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:51,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:51,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:51,279 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:51,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:51,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1529474839, now seen corresponding path program 1 times [2022-07-23 13:34:51,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:51,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856586529] [2022-07-23 13:34:51,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:51,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:51,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:51,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:51,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:51,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 13:34:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:51,365 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:51,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:51,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856586529] [2022-07-23 13:34:51,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856586529] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:51,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954638422] [2022-07-23 13:34:51,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:51,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:51,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:51,368 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:51,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-23 13:34:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:51,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-23 13:34:51,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:51,560 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-23 13:34:51,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:51,739 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-23 13:34:51,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954638422] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:51,739 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:51,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 21 [2022-07-23 13:34:51,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679161028] [2022-07-23 13:34:51,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:51,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-23 13:34:51,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:51,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-23 13:34:51,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2022-07-23 13:34:51,741 INFO L87 Difference]: Start difference. First operand 708 states and 983 transitions. Second operand has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 17 states have internal predecessors, (74), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-23 13:34:54,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:54,471 INFO L93 Difference]: Finished difference Result 2445 states and 3441 transitions. [2022-07-23 13:34:54,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-07-23 13:34:54,471 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 17 states have internal predecessors, (74), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 56 [2022-07-23 13:34:54,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:54,479 INFO L225 Difference]: With dead ends: 2445 [2022-07-23 13:34:54,479 INFO L226 Difference]: Without dead ends: 2314 [2022-07-23 13:34:54,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 120 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=403, Invalid=2459, Unknown=0, NotChecked=0, Total=2862 [2022-07-23 13:34:54,481 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 1310 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 4800 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 5038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 4800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:54,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1333 Valid, 435 Invalid, 5038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 4800 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-23 13:34:54,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2022-07-23 13:34:54,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 724. [2022-07-23 13:34:54,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 653 states have (on average 1.3935681470137826) internal successors, (910), 664 states have internal predecessors, (910), 45 states have call successors, (45), 15 states have call predecessors, (45), 16 states have return successors, (48), 44 states have call predecessors, (48), 41 states have call successors, (48) [2022-07-23 13:34:54,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1003 transitions. [2022-07-23 13:34:54,546 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1003 transitions. Word has length 56 [2022-07-23 13:34:54,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:54,546 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 1003 transitions. [2022-07-23 13:34:54,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 17 states have internal predecessors, (74), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-23 13:34:54,547 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1003 transitions. [2022-07-23 13:34:54,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-23 13:34:54,550 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:54,550 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:54,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:54,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:54,767 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:54,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:54,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1956143909, now seen corresponding path program 2 times [2022-07-23 13:34:54,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:54,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634719589] [2022-07-23 13:34:54,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:54,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:54,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:54,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:54,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:54,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:54,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 13:34:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:54,914 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:54,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:54,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634719589] [2022-07-23 13:34:54,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634719589] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:54,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737096534] [2022-07-23 13:34:54,915 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:34:54,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:54,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:54,916 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:54,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-23 13:34:54,989 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-23 13:34:54,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:34:54,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-23 13:34:54,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:55,075 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-23 13:34:55,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:55,176 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-23 13:34:55,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737096534] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:55,176 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:55,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 19 [2022-07-23 13:34:55,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651299398] [2022-07-23 13:34:55,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:55,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-23 13:34:55,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:55,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-23 13:34:55,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-07-23 13:34:55,178 INFO L87 Difference]: Start difference. First operand 724 states and 1003 transitions. Second operand has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-23 13:34:59,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:59,362 INFO L93 Difference]: Finished difference Result 2693 states and 3787 transitions. [2022-07-23 13:34:59,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-23 13:34:59,362 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2022-07-23 13:34:59,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:59,368 INFO L225 Difference]: With dead ends: 2693 [2022-07-23 13:34:59,368 INFO L226 Difference]: Without dead ends: 2323 [2022-07-23 13:34:59,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=332, Invalid=1738, Unknown=0, NotChecked=0, Total=2070 [2022-07-23 13:34:59,371 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 1539 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 7593 mSolverCounterSat, 288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 7881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 288 IncrementalHoareTripleChecker+Valid, 7593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:59,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 660 Invalid, 7881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [288 Valid, 7593 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-23 13:34:59,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2323 states. [2022-07-23 13:34:59,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2323 to 736. [2022-07-23 13:34:59,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 662 states have (on average 1.3791540785498488) internal successors, (913), 670 states have internal predecessors, (913), 48 states have call successors, (48), 18 states have call predecessors, (48), 16 states have return successors, (48), 47 states have call predecessors, (48), 41 states have call successors, (48) [2022-07-23 13:34:59,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1009 transitions. [2022-07-23 13:34:59,442 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1009 transitions. Word has length 56 [2022-07-23 13:34:59,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:59,442 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 1009 transitions. [2022-07-23 13:34:59,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-23 13:34:59,442 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1009 transitions. [2022-07-23 13:34:59,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-23 13:34:59,444 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:59,444 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:59,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:59,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:59,663 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:59,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:59,664 INFO L85 PathProgramCache]: Analyzing trace with hash -571398184, now seen corresponding path program 1 times [2022-07-23 13:34:59,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:59,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601592151] [2022-07-23 13:34:59,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:59,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:59,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:59,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:59,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:59,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:59,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:59,690 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-23 13:34:59,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:59,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601592151] [2022-07-23 13:34:59,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601592151] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:59,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:59,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 13:34:59,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588336223] [2022-07-23 13:34:59,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:59,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:34:59,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:59,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:34:59,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:59,693 INFO L87 Difference]: Start difference. First operand 736 states and 1009 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:59,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:59,839 INFO L93 Difference]: Finished difference Result 1121 states and 1522 transitions. [2022-07-23 13:34:59,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:34:59,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-07-23 13:34:59,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:59,842 INFO L225 Difference]: With dead ends: 1121 [2022-07-23 13:34:59,842 INFO L226 Difference]: Without dead ends: 866 [2022-07-23 13:34:59,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:34:59,844 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 147 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:59,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 209 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:59,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2022-07-23 13:34:59,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 766. [2022-07-23 13:34:59,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 692 states have (on average 1.3872832369942196) internal successors, (960), 700 states have internal predecessors, (960), 48 states have call successors, (48), 18 states have call predecessors, (48), 16 states have return successors, (48), 47 states have call predecessors, (48), 41 states have call successors, (48) [2022-07-23 13:34:59,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1056 transitions. [2022-07-23 13:34:59,902 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1056 transitions. Word has length 55 [2022-07-23 13:34:59,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:59,903 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 1056 transitions. [2022-07-23 13:34:59,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:59,903 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1056 transitions. [2022-07-23 13:34:59,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-23 13:34:59,904 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:59,904 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:59,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-23 13:34:59,905 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:59,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:59,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1837019720, now seen corresponding path program 1 times [2022-07-23 13:34:59,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:59,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141330062] [2022-07-23 13:34:59,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:59,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:59,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:59,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:59,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:59,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:59,987 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-23 13:34:59,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:59,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141330062] [2022-07-23 13:34:59,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141330062] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:59,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:59,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-23 13:34:59,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906289765] [2022-07-23 13:34:59,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:59,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-23 13:34:59,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:59,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 13:34:59,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-23 13:34:59,989 INFO L87 Difference]: Start difference. First operand 766 states and 1056 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:35:01,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:01,366 INFO L93 Difference]: Finished difference Result 2285 states and 3327 transitions. [2022-07-23 13:35:01,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-23 13:35:01,366 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-07-23 13:35:01,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:01,372 INFO L225 Difference]: With dead ends: 2285 [2022-07-23 13:35:01,372 INFO L226 Difference]: Without dead ends: 2053 [2022-07-23 13:35:01,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2022-07-23 13:35:01,373 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 434 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 2871 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 2933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:01,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 888 Invalid, 2933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2871 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-23 13:35:01,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2053 states. [2022-07-23 13:35:01,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2053 to 951. [2022-07-23 13:35:01,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 861 states have (on average 1.40534262485482) internal successors, (1210), 870 states have internal predecessors, (1210), 60 states have call successors, (60), 21 states have call predecessors, (60), 20 states have return successors, (64), 59 states have call predecessors, (64), 53 states have call successors, (64) [2022-07-23 13:35:01,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1334 transitions. [2022-07-23 13:35:01,469 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1334 transitions. Word has length 55 [2022-07-23 13:35:01,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:01,470 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1334 transitions. [2022-07-23 13:35:01,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:35:01,470 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1334 transitions. [2022-07-23 13:35:01,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-23 13:35:01,471 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:01,471 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:01,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-23 13:35:01,472 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:35:01,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:01,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1837021642, now seen corresponding path program 1 times [2022-07-23 13:35:01,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:01,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872650984] [2022-07-23 13:35:01,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:01,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:01,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:35:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:01,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:35:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:01,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:35:01,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:01,556 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-23 13:35:01,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:01,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872650984] [2022-07-23 13:35:01,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872650984] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:35:01,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:35:01,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 13:35:01,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091022523] [2022-07-23 13:35:01,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:35:01,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 13:35:01,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:01,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 13:35:01,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-23 13:35:01,559 INFO L87 Difference]: Start difference. First operand 951 states and 1334 transitions. Second operand has 11 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:35:02,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:02,339 INFO L93 Difference]: Finished difference Result 2622 states and 3839 transitions. [2022-07-23 13:35:02,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-23 13:35:02,339 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-07-23 13:35:02,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:02,345 INFO L225 Difference]: With dead ends: 2622 [2022-07-23 13:35:02,345 INFO L226 Difference]: Without dead ends: 2158 [2022-07-23 13:35:02,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2022-07-23 13:35:02,347 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 886 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:02,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 545 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 13:35:02,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2022-07-23 13:35:02,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 1146. [2022-07-23 13:35:02,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 1040 states have (on average 1.4134615384615385) internal successors, (1470), 1050 states have internal predecessors, (1470), 72 states have call successors, (72), 24 states have call predecessors, (72), 24 states have return successors, (79), 71 states have call predecessors, (79), 65 states have call successors, (79) [2022-07-23 13:35:02,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1621 transitions. [2022-07-23 13:35:02,445 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1621 transitions. Word has length 55 [2022-07-23 13:35:02,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:02,446 INFO L495 AbstractCegarLoop]: Abstraction has 1146 states and 1621 transitions. [2022-07-23 13:35:02,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:35:02,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1621 transitions. [2022-07-23 13:35:02,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-23 13:35:02,447 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:02,448 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:02,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-23 13:35:02,448 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:35:02,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:02,448 INFO L85 PathProgramCache]: Analyzing trace with hash -474152029, now seen corresponding path program 1 times [2022-07-23 13:35:02,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:02,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286450579] [2022-07-23 13:35:02,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:02,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:02,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:35:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:02,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:35:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:02,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:35:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:02,560 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-23 13:35:02,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:02,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286450579] [2022-07-23 13:35:02,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286450579] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:35:02,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303234535] [2022-07-23 13:35:02,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:02,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:02,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:35:02,564 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:35:02,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-23 13:35:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:02,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 25 conjunts are in the unsatisfiable core [2022-07-23 13:35:02,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:35:02,726 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-23 13:35:02,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:35:02,908 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-23 13:35:02,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303234535] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:35:02,908 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:35:02,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 10] total 22 [2022-07-23 13:35:02,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529249596] [2022-07-23 13:35:02,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:35:02,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-23 13:35:02,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:02,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-23 13:35:02,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-07-23 13:35:02,910 INFO L87 Difference]: Start difference. First operand 1146 states and 1621 transitions. Second operand has 22 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 13:35:03,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:03,975 INFO L93 Difference]: Finished difference Result 1353 states and 1874 transitions. [2022-07-23 13:35:03,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-23 13:35:03,976 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 57 [2022-07-23 13:35:03,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:03,979 INFO L225 Difference]: With dead ends: 1353 [2022-07-23 13:35:03,979 INFO L226 Difference]: Without dead ends: 1096 [2022-07-23 13:35:03,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=160, Invalid=1100, Unknown=0, NotChecked=0, Total=1260 [2022-07-23 13:35:03,981 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 214 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 2071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:03,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 752 Invalid, 2071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-23 13:35:03,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-07-23 13:35:04,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 959. [2022-07-23 13:35:04,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 871 states have (on average 1.401836969001148) internal successors, (1221), 881 states have internal predecessors, (1221), 58 states have call successors, (58), 20 states have call predecessors, (58), 20 states have return successors, (63), 57 states have call predecessors, (63), 52 states have call successors, (63) [2022-07-23 13:35:04,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1342 transitions. [2022-07-23 13:35:04,071 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1342 transitions. Word has length 57 [2022-07-23 13:35:04,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:04,071 INFO L495 AbstractCegarLoop]: Abstraction has 959 states and 1342 transitions. [2022-07-23 13:35:04,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 13:35:04,072 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1342 transitions. [2022-07-23 13:35:04,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-23 13:35:04,073 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:04,073 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:04,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-23 13:35:04,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-07-23 13:35:04,295 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:35:04,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:04,296 INFO L85 PathProgramCache]: Analyzing trace with hash -2059170591, now seen corresponding path program 1 times [2022-07-23 13:35:04,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:04,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081244224] [2022-07-23 13:35:04,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:04,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:04,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:35:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:04,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:35:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:04,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 13:35:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:04,423 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-23 13:35:04,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:04,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081244224] [2022-07-23 13:35:04,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081244224] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:35:04,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:35:04,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-23 13:35:04,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833719398] [2022-07-23 13:35:04,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:35:04,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 13:35:04,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:04,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 13:35:04,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-23 13:35:04,425 INFO L87 Difference]: Start difference. First operand 959 states and 1342 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:35:05,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:05,000 INFO L93 Difference]: Finished difference Result 1256 states and 1731 transitions. [2022-07-23 13:35:05,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-23 13:35:05,001 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 57 [2022-07-23 13:35:05,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:05,004 INFO L225 Difference]: With dead ends: 1256 [2022-07-23 13:35:05,004 INFO L226 Difference]: Without dead ends: 914 [2022-07-23 13:35:05,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2022-07-23 13:35:05,005 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 158 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:05,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 561 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 13:35:05,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2022-07-23 13:35:05,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 835. [2022-07-23 13:35:05,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 758 states have (on average 1.391820580474934) internal successors, (1055), 767 states have internal predecessors, (1055), 50 states have call successors, (50), 18 states have call predecessors, (50), 17 states have return successors, (52), 49 states have call predecessors, (52), 44 states have call successors, (52) [2022-07-23 13:35:05,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1157 transitions. [2022-07-23 13:35:05,070 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1157 transitions. Word has length 57 [2022-07-23 13:35:05,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:05,070 INFO L495 AbstractCegarLoop]: Abstraction has 835 states and 1157 transitions. [2022-07-23 13:35:05,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:35:05,071 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1157 transitions. [2022-07-23 13:35:05,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-23 13:35:05,072 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:05,072 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:05,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-23 13:35:05,072 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:35:05,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:05,073 INFO L85 PathProgramCache]: Analyzing trace with hash 891468222, now seen corresponding path program 1 times [2022-07-23 13:35:05,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:05,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752602181] [2022-07-23 13:35:05,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:05,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 13:35:05,101 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 13:35:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 13:35:05,139 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 13:35:05,140 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-23 13:35:05,140 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-07-23 13:35:05,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-07-23 13:35:05,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-07-23 13:35:05,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-07-23 13:35:05,142 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-07-23 13:35:05,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-07-23 13:35:05,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-07-23 13:35:05,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-07-23 13:35:05,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2022-07-23 13:35:05,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2022-07-23 13:35:05,143 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 20 remaining) [2022-07-23 13:35:05,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 20 remaining) [2022-07-23 13:35:05,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-07-23 13:35:05,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-07-23 13:35:05,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-07-23 13:35:05,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-07-23 13:35:05,144 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-07-23 13:35:05,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-07-23 13:35:05,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-07-23 13:35:05,145 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-07-23 13:35:05,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-23 13:35:05,148 INFO L356 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:05,151 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-23 13:35:05,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 01:35:05 BoogieIcfgContainer [2022-07-23 13:35:05,204 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-23 13:35:05,204 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 13:35:05,204 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 13:35:05,204 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 13:35:05,205 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:34:23" (3/4) ... [2022-07-23 13:35:05,207 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-23 13:35:05,207 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 13:35:05,207 INFO L158 Benchmark]: Toolchain (without parser) took 43006.37ms. Allocated memory was 88.1MB in the beginning and 188.7MB in the end (delta: 100.7MB). Free memory was 55.3MB in the beginning and 60.6MB in the end (delta: -5.3MB). Peak memory consumption was 95.6MB. Max. memory is 16.1GB. [2022-07-23 13:35:05,208 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory was 45.6MB in the beginning and 45.5MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 13:35:05,208 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.49ms. Allocated memory is still 88.1MB. Free memory was 55.2MB in the beginning and 60.6MB in the end (delta: -5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 13:35:05,208 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.65ms. Allocated memory is still 88.1MB. Free memory was 60.6MB in the beginning and 59.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 13:35:05,208 INFO L158 Benchmark]: Boogie Preprocessor took 30.89ms. Allocated memory is still 88.1MB. Free memory was 59.2MB in the beginning and 57.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 13:35:05,209 INFO L158 Benchmark]: RCFGBuilder took 531.07ms. Allocated memory is still 88.1MB. Free memory was 57.5MB in the beginning and 38.2MB in the end (delta: 19.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-07-23 13:35:05,209 INFO L158 Benchmark]: TraceAbstraction took 42160.28ms. Allocated memory was 88.1MB in the beginning and 188.7MB in the end (delta: 100.7MB). Free memory was 37.8MB in the beginning and 61.6MB in the end (delta: -23.8MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2022-07-23 13:35:05,209 INFO L158 Benchmark]: Witness Printer took 3.07ms. Allocated memory is still 188.7MB. Free memory was 61.6MB in the beginning and 60.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 13:35:05,210 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 88.1MB. Free memory was 45.6MB in the beginning and 45.5MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 248.49ms. Allocated memory is still 88.1MB. Free memory was 55.2MB in the beginning and 60.6MB in the end (delta: -5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.65ms. Allocated memory is still 88.1MB. Free memory was 60.6MB in the beginning and 59.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.89ms. Allocated memory is still 88.1MB. Free memory was 59.2MB in the beginning and 57.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 531.07ms. Allocated memory is still 88.1MB. Free memory was 57.5MB in the beginning and 38.2MB in the end (delta: 19.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 42160.28ms. Allocated memory was 88.1MB in the beginning and 188.7MB in the end (delta: 100.7MB). Free memory was 37.8MB in the beginning and 61.6MB in the end (delta: -23.8MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. * Witness Printer took 3.07ms. Allocated memory is still 188.7MB. Free memory was 61.6MB in the beginning and 60.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 109]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseComplement at line 76. Possible FailurePath: [L226] unsigned int a ; [L227] unsigned int ma = __VERIFIER_nondet_uint(); [L228] signed char ea = __VERIFIER_nondet_char(); [L229] unsigned int b ; [L230] unsigned int mb = __VERIFIER_nondet_uint(); [L231] signed char eb = __VERIFIER_nondet_char(); [L232] unsigned int r_add1 ; [L233] unsigned int r_add2 ; [L234] unsigned int zero ; [L235] int tmp ; [L236] int tmp___0 ; [L237] int __retres14 ; VAL [ea=-1, eb=-127] [L241] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=0, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, __retres4=0, e=0, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L80] return (__retres4); VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, \result=0, __retres4=0, e=0, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L241] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=-1, eb=-127, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L241] zero = base2flt(0, 0) [L242] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=-1, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L29] COND FALSE !(! m) VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=-1, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=-1, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L57] COND TRUE 1 VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=-1, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=-1, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=-1, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L77] EXPR e + 128 VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=-1, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L77] EXPR e + 128 VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=-1, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L77] res = m | ((unsigned int )(e + 128) << 24U) VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=-1, m=0, m = m & ~ (1U << 24U)=36028799166447616, res=2147483646, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L78] __retres4 = res VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, __retres4=2147483646, e=-1, m=0, m = m & ~ (1U << 24U)=36028799166447616, res=2147483646, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L80] return (__retres4); VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, \result=2147483646, __retres4=2147483646, e=-1, m=0, m = m & ~ (1U << 24U)=36028799166447616, res=2147483646, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L242] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=2147483646, ea=-1, eb=-127, m = m & ~ (1U << 24U)=36028799166447616, ma=16777216, res = m | ((unsigned int )(e + 128) << 24U)=2130706432, zero=0] [L242] a = base2flt(ma, ea) [L243] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L29] COND FALSE !(! m) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L57] COND TRUE 1 VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L77] EXPR e + 128 VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L77] EXPR e + 128 VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L77] res = m | ((unsigned int )(e + 128) << 24U) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799166447616, res=2147483647, res = m | ((unsigned int )(e + 128) << 24U)=16777216] [L78] __retres4 = res VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, __retres4=2147483647, e=-127, m=0, m = m & ~ (1U << 24U)=36028799166447616, res=2147483647, res = m | ((unsigned int )(e + 128) << 24U)=16777216] [L80] return (__retres4); VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, \result=36028799166447615, __retres4=2147483647, e=-127, m=0, m = m & ~ (1U << 24U)=36028799166447616, res=2147483647, res = m | ((unsigned int )(e + 128) << 24U)=16777216] [L243] RET, EXPR base2flt(mb, eb) VAL [a=2147483646, base2flt(mb, eb)=36028799166447615, ea=-1, eb=-127, m = m & ~ (1U << 24U)=36028799166447616, ma=16777216, mb=16777216, res = m | ((unsigned int )(e + 128) << 24U)=16777216, zero=0] [L243] b = base2flt(mb, eb) [L244] CALL addflt(a, b) VAL [\old(a)=2147483646, \old(b)=2147483647, \old(ma = a & ((1U << 24U) - 1U))=36028799166447620, \old(ma = ma & ((1U << 24U) - 1U))=36028799166447621, \old(ma = ma | (1U << 24U))=36028799166447619, \old(mb = b & ((1U << 24U) - 1U))=36028799166447617, \old(mb = mb | (1U << 24U))=36028799166447623, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799166447622, m = m & ~ (1U << 24U)=36028799166447616, ma = a & ((1U << 24U) - 1U)=36028799166447620, ma = ma & ((1U << 24U) - 1U)=36028799166447621, ma = ma | (1U << 24U)=36028799166447619, mb = b & ((1U << 24U) - 1U)=36028799166447617, mb = mb | (1U << 24U)=36028799166447623, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799166447622] [L84] unsigned int res ; [L85] unsigned int ma ; [L86] unsigned int mb ; [L87] unsigned int delta ; [L88] int ea ; [L89] int eb ; [L90] unsigned int tmp ; [L91] unsigned int __retres10 ; VAL [\old(a)=2147483646, \old(b)=2147483647, \old(ma = a & ((1U << 24U) - 1U))=36028799166447620, \old(ma = ma & ((1U << 24U) - 1U))=36028799166447621, \old(ma = ma | (1U << 24U))=36028799166447619, \old(mb = b & ((1U << 24U) - 1U))=36028799166447617, \old(mb = mb | (1U << 24U))=36028799166447623, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799166447622, a=2147483646, b=2147483647, m = m & ~ (1U << 24U)=36028799166447616, ma = a & ((1U << 24U) - 1U)=36028799166447620, ma = ma & ((1U << 24U) - 1U)=36028799166447621, ma = ma | (1U << 24U)=36028799166447619, mb = b & ((1U << 24U) - 1U)=36028799166447617, mb = mb | (1U << 24U)=36028799166447623, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799166447622] [L94] COND TRUE a < b [L95] tmp = a [L96] a = b [L97] b = tmp VAL [\old(a)=2147483646, \old(b)=2147483647, \old(ma = a & ((1U << 24U) - 1U))=36028799166447620, \old(ma = ma & ((1U << 24U) - 1U))=36028799166447621, \old(ma = ma | (1U << 24U))=36028799166447619, \old(mb = b & ((1U << 24U) - 1U))=36028799166447617, \old(mb = mb | (1U << 24U))=36028799166447623, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799166447622, a=2147483647, b=2147483646, m = m & ~ (1U << 24U)=36028799166447616, ma = a & ((1U << 24U) - 1U)=36028799166447620, ma = ma & ((1U << 24U) - 1U)=36028799166447621, ma = ma | (1U << 24U)=36028799166447619, mb = b & ((1U << 24U) - 1U)=36028799166447617, mb = mb | (1U << 24U)=36028799166447623, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799166447622, tmp=2147483646] [L101] COND FALSE !(! b) VAL [\old(a)=2147483646, \old(b)=2147483647, \old(ma = a & ((1U << 24U) - 1U))=36028799166447620, \old(ma = ma & ((1U << 24U) - 1U))=36028799166447621, \old(ma = ma | (1U << 24U))=36028799166447619, \old(mb = b & ((1U << 24U) - 1U))=36028799166447617, \old(mb = mb | (1U << 24U))=36028799166447623, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799166447622, a=2147483647, b=2147483646, m = m & ~ (1U << 24U)=36028799166447616, ma = a & ((1U << 24U) - 1U)=36028799166447620, ma = ma & ((1U << 24U) - 1U)=36028799166447621, ma = ma | (1U << 24U)=36028799166447619, mb = b & ((1U << 24U) - 1U)=36028799166447617, mb = mb | (1U << 24U)=36028799166447623, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799166447622, tmp=2147483646] [L108] ma = a & ((1U << 24U) - 1U) VAL [\old(a)=2147483646, \old(b)=2147483647, \old(ma = a & ((1U << 24U) - 1U))=36028799166447620, \old(ma = ma & ((1U << 24U) - 1U))=36028799166447621, \old(ma = ma | (1U << 24U))=36028799166447619, \old(mb = b & ((1U << 24U) - 1U))=36028799166447617, \old(mb = mb | (1U << 24U))=36028799166447623, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799166447622, a=2147483647, b=2147483646, m = m & ~ (1U << 24U)=36028799166447616, ma=16777214, ma = a & ((1U << 24U) - 1U)=16777215, ma = ma & ((1U << 24U) - 1U)=36028799166447621, ma = ma | (1U << 24U)=36028799166447619, mb = b & ((1U << 24U) - 1U)=36028799166447617, mb = mb | (1U << 24U)=36028799166447623, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799166447622, tmp=2147483646] [L109] (int )(a >> 24U) - 128 VAL [\old(a)=2147483646, \old(b)=2147483647, \old(ma = a & ((1U << 24U) - 1U))=36028799166447620, \old(ma = ma & ((1U << 24U) - 1U))=36028799166447621, \old(ma = ma | (1U << 24U))=36028799166447619, \old(mb = b & ((1U << 24U) - 1U))=36028799166447617, \old(mb = mb | (1U << 24U))=36028799166447623, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799166447622, a=2147483647, b=2147483646, m = m & ~ (1U << 24U)=36028799166447616, ma=16777214, ma = a & ((1U << 24U) - 1U)=16777215, ma = ma & ((1U << 24U) - 1U)=36028799166447621, ma = ma | (1U << 24U)=36028799166447619, mb = b & ((1U << 24U) - 1U)=36028799166447617, mb = mb | (1U << 24U)=36028799166447623, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799166447622, tmp=2147483646] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 109]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 124 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 42.0s, OverallIterations: 33, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 29.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14820 SdHoareTripleChecker+Valid, 22.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14707 mSDsluCounter, 17148 SdHoareTripleChecker+Invalid, 18.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10627 mSDsCounter, 2100 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47419 IncrementalHoareTripleChecker+Invalid, 49519 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2100 mSolverCounterUnsat, 6521 mSDtfsCounter, 47419 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2055 GetRequests, 1470 SyntacticMatches, 15 SemanticMatches, 570 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2926 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1146occurred in iteration=30, InterpolantAutomatonStates: 450, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 32 MinimizatonAttempts, 13216 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 2057 NumberOfCodeBlocks, 2057 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 2469 ConstructedInterpolants, 0 QuantifiedInterpolants, 6645 SizeOfPredicates, 61 NumberOfNonLiveVariables, 3176 ConjunctsInSsa, 195 ConjunctsInUnsatCore, 63 InterpolantComputations, 22 PerfectInterpolantSequences, 809/961 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-23 13:35:05,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample