./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 35987657 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-?-3598765 [2022-07-22 00:46:43,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 00:46:43,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 00:46:43,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 00:46:43,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 00:46:43,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 00:46:43,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 00:46:43,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 00:46:43,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 00:46:43,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 00:46:43,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 00:46:43,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 00:46:43,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 00:46:43,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 00:46:43,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 00:46:43,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 00:46:43,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 00:46:43,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 00:46:43,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 00:46:43,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 00:46:43,196 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 00:46:43,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 00:46:43,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 00:46:43,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 00:46:43,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 00:46:43,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 00:46:43,207 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 00:46:43,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 00:46:43,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 00:46:43,208 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 00:46:43,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 00:46:43,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 00:46:43,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 00:46:43,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 00:46:43,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 00:46:43,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 00:46:43,214 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 00:46:43,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 00:46:43,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 00:46:43,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 00:46:43,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 00:46:43,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 00:46:43,221 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-22 00:46:43,248 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 00:46:43,248 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 00:46:43,249 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 00:46:43,249 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 00:46:43,249 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 00:46:43,250 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 00:46:43,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 00:46:43,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 00:46:43,251 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 00:46:43,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 00:46:43,252 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 00:46:43,252 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 00:46:43,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 00:46:43,252 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 00:46:43,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 00:46:43,253 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 00:46:43,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 00:46:43,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 00:46:43,253 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-22 00:46:43,253 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 00:46:43,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 00:46:43,254 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 00:46:43,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 00:46:43,254 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 00:46:43,254 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 00:46:43,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 00:46:43,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:46:43,255 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 00:46:43,255 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 00:46:43,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 00:46:43,255 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 00:46:43,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 00:46:43,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 00:46:43,256 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7e459611ed6ff9d4c49aa04980ca7f1d5aaaf97e8fc0116c264955df4ed453a [2022-07-22 00:46:43,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 00:46:43,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 00:46:43,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 00:46:43,569 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 00:46:43,570 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 00:46:43,572 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2022-07-22 00:46:43,632 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e9fc3838/b065906ba4ca4ff2834510f5a2a81347/FLAG319201389 [2022-07-22 00:46:44,095 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 00:46:44,096 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2022-07-22 00:46:44,105 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e9fc3838/b065906ba4ca4ff2834510f5a2a81347/FLAG319201389 [2022-07-22 00:46:44,125 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e9fc3838/b065906ba4ca4ff2834510f5a2a81347 [2022-07-22 00:46:44,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 00:46:44,127 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 00:46:44,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 00:46:44,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 00:46:44,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 00:46:44,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:46:44" (1/1) ... [2022-07-22 00:46:44,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@320fa073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:46:44, skipping insertion in model container [2022-07-22 00:46:44,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 12:46:44" (1/1) ... [2022-07-22 00:46:44,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 00:46:44,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 00:46:44,254 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] [2022-07-22 00:46:44,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:46:44,373 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 00:46:44,387 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] [2022-07-22 00:46:44,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 00:46:44,465 INFO L208 MainTranslator]: Completed translation [2022-07-22 00:46:44,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:46:44 WrapperNode [2022-07-22 00:46:44,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 00:46:44,467 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 00:46:44,467 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 00:46:44,467 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 00:46:44,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:46:44" (1/1) ... [2022-07-22 00:46:44,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:46:44" (1/1) ... [2022-07-22 00:46:44,505 INFO L137 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-07-22 00:46:44,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 00:46:44,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 00:46:44,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 00:46:44,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 00:46:44,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:46:44" (1/1) ... [2022-07-22 00:46:44,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:46:44" (1/1) ... [2022-07-22 00:46:44,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:46:44" (1/1) ... [2022-07-22 00:46:44,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:46:44" (1/1) ... [2022-07-22 00:46:44,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:46:44" (1/1) ... [2022-07-22 00:46:44,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:46:44" (1/1) ... [2022-07-22 00:46:44,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:46:44" (1/1) ... [2022-07-22 00:46:44,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 00:46:44,561 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 00:46:44,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 00:46:44,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 00:46:44,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:46:44" (1/1) ... [2022-07-22 00:46:44,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 00:46:44,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:46:44,589 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) [2022-07-22 00:46:44,617 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 [2022-07-22 00:46:44,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 00:46:44,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 00:46:44,636 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-22 00:46:44,636 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-22 00:46:44,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 00:46:44,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 00:46:44,637 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2022-07-22 00:46:44,637 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2022-07-22 00:46:44,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 00:46:44,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 00:46:44,730 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 00:46:44,732 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 00:46:45,143 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 00:46:45,150 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 00:46:45,151 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-22 00:46:45,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:46:45 BoogieIcfgContainer [2022-07-22 00:46:45,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 00:46:45,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 00:46:45,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 00:46:45,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 00:46:45,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 12:46:44" (1/3) ... [2022-07-22 00:46:45,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bcba266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:46:45, skipping insertion in model container [2022-07-22 00:46:45,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 12:46:44" (2/3) ... [2022-07-22 00:46:45,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bcba266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 12:46:45, skipping insertion in model container [2022-07-22 00:46:45,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:46:45" (3/3) ... [2022-07-22 00:46:45,160 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2022-07-22 00:46:45,171 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 00:46:45,172 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-07-22 00:46:45,215 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 00:46:45,224 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@19a65dc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3fdcb2d7 [2022-07-22 00:46:45,225 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-07-22 00:46:45,244 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) [2022-07-22 00:46:45,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-22 00:46:45,250 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:45,251 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:46:45,251 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:46:45,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:45,255 INFO L85 PathProgramCache]: Analyzing trace with hash -618414996, now seen corresponding path program 1 times [2022-07-22 00:46:45,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:45,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655000542] [2022-07-22 00:46:45,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:45,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:45,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:45,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:46:45,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:45,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655000542] [2022-07-22 00:46:45,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655000542] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:46:45,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:46:45,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-22 00:46:45,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913536563] [2022-07-22 00:46:45,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:46:45,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-22 00:46:45,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:45,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-22 00:46:45,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-22 00:46:45,450 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) [2022-07-22 00:46:45,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:45,491 INFO L93 Difference]: Finished difference Result 243 states and 363 transitions. [2022-07-22 00:46:45,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-22 00:46:45,495 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 [2022-07-22 00:46:45,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:45,502 INFO L225 Difference]: With dead ends: 243 [2022-07-22 00:46:45,503 INFO L226 Difference]: Without dead ends: 112 [2022-07-22 00:46:45,511 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 [2022-07-22 00:46:45,513 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 [2022-07-22 00:46:45,514 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] [2022-07-22 00:46:45,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-07-22 00:46:45,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2022-07-22 00:46:45,547 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) [2022-07-22 00:46:45,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 146 transitions. [2022-07-22 00:46:45,551 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 146 transitions. Word has length 9 [2022-07-22 00:46:45,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:45,551 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 146 transitions. [2022-07-22 00:46:45,551 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) [2022-07-22 00:46:45,552 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 146 transitions. [2022-07-22 00:46:45,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-22 00:46:45,553 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:45,553 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:46:45,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 00:46:45,553 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:46:45,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:45,554 INFO L85 PathProgramCache]: Analyzing trace with hash -619356344, now seen corresponding path program 1 times [2022-07-22 00:46:45,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:45,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112492571] [2022-07-22 00:46:45,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:45,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:45,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:46:45,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:45,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112492571] [2022-07-22 00:46:45,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112492571] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:46:45,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:46:45,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 00:46:45,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728811133] [2022-07-22 00:46:45,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:46:45,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:46:45,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:45,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:46:45,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:46:45,612 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) [2022-07-22 00:46:45,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:45,704 INFO L93 Difference]: Finished difference Result 283 states and 383 transitions. [2022-07-22 00:46:45,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:46:45,705 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 [2022-07-22 00:46:45,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:45,708 INFO L225 Difference]: With dead ends: 283 [2022-07-22 00:46:45,708 INFO L226 Difference]: Without dead ends: 174 [2022-07-22 00:46:45,709 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 [2022-07-22 00:46:45,710 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 106 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-07-22 00:46:45,711 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] [2022-07-22 00:46:45,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-07-22 00:46:45,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 161. [2022-07-22 00:46:45,723 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) [2022-07-22 00:46:45,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 221 transitions. [2022-07-22 00:46:45,725 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 221 transitions. Word has length 9 [2022-07-22 00:46:45,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:45,726 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 221 transitions. [2022-07-22 00:46:45,726 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) [2022-07-22 00:46:45,726 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 221 transitions. [2022-07-22 00:46:45,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-22 00:46:45,727 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:45,727 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:46:45,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 00:46:45,727 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:46:45,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:45,728 INFO L85 PathProgramCache]: Analyzing trace with hash -2023794271, now seen corresponding path program 1 times [2022-07-22 00:46:45,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:45,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645163071] [2022-07-22 00:46:45,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:45,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:45,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:46:45,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:45,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645163071] [2022-07-22 00:46:45,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645163071] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:46:45,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:46:45,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:46:45,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452959659] [2022-07-22 00:46:45,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:46:45,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:46:45,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:45,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:46:45,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:46:45,810 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) [2022-07-22 00:46:45,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:45,943 INFO L93 Difference]: Finished difference Result 196 states and 260 transitions. [2022-07-22 00:46:45,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:46:45,944 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 [2022-07-22 00:46:45,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:45,945 INFO L225 Difference]: With dead ends: 196 [2022-07-22 00:46:45,945 INFO L226 Difference]: Without dead ends: 193 [2022-07-22 00:46:45,946 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 [2022-07-22 00:46:45,954 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 [2022-07-22 00:46:45,955 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] [2022-07-22 00:46:45,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-07-22 00:46:45,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 168. [2022-07-22 00:46:45,983 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) [2022-07-22 00:46:45,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 232 transitions. [2022-07-22 00:46:45,986 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 232 transitions. Word has length 13 [2022-07-22 00:46:45,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:45,986 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 232 transitions. [2022-07-22 00:46:45,986 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) [2022-07-22 00:46:45,987 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 232 transitions. [2022-07-22 00:46:45,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-22 00:46:45,987 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:45,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:46:45,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 00:46:45,988 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:46:45,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:45,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1686887160, now seen corresponding path program 1 times [2022-07-22 00:46:45,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:45,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952716995] [2022-07-22 00:46:45,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:45,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:46,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:46:46,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:46,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952716995] [2022-07-22 00:46:46,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952716995] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:46:46,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:46:46,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:46:46,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617984696] [2022-07-22 00:46:46,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:46:46,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:46:46,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:46,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:46:46,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-22 00:46:46,058 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) [2022-07-22 00:46:46,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:46,233 INFO L93 Difference]: Finished difference Result 316 states and 422 transitions. [2022-07-22 00:46:46,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:46:46,234 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 [2022-07-22 00:46:46,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:46,240 INFO L225 Difference]: With dead ends: 316 [2022-07-22 00:46:46,240 INFO L226 Difference]: Without dead ends: 203 [2022-07-22 00:46:46,241 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 [2022-07-22 00:46:46,250 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 [2022-07-22 00:46:46,251 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] [2022-07-22 00:46:46,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-07-22 00:46:46,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 172. [2022-07-22 00:46:46,279 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) [2022-07-22 00:46:46,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 235 transitions. [2022-07-22 00:46:46,284 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 235 transitions. Word has length 14 [2022-07-22 00:46:46,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:46,284 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 235 transitions. [2022-07-22 00:46:46,285 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) [2022-07-22 00:46:46,285 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 235 transitions. [2022-07-22 00:46:46,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-22 00:46:46,286 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:46,286 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:46:46,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 00:46:46,287 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:46:46,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:46,288 INFO L85 PathProgramCache]: Analyzing trace with hash 564430704, now seen corresponding path program 1 times [2022-07-22 00:46:46,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:46,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962262298] [2022-07-22 00:46:46,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:46,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:46,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:46:46,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:46,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:46:46,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:46,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962262298] [2022-07-22 00:46:46,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962262298] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:46,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17638016] [2022-07-22 00:46:46,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:46,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:46:46,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:46:46,346 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) [2022-07-22 00:46:46,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 00:46:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:46,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 00:46:46,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:46:46,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:46:46,462 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:46:46,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17638016] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:46:46,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 00:46:46,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-22 00:46:46,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53227886] [2022-07-22 00:46:46,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:46:46,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:46:46,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:46,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:46:46,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:46:46,470 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) [2022-07-22 00:46:46,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:46,604 INFO L93 Difference]: Finished difference Result 242 states and 332 transitions. [2022-07-22 00:46:46,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:46:46,605 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 [2022-07-22 00:46:46,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:46,607 INFO L225 Difference]: With dead ends: 242 [2022-07-22 00:46:46,607 INFO L226 Difference]: Without dead ends: 238 [2022-07-22 00:46:46,611 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 [2022-07-22 00:46:46,612 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 [2022-07-22 00:46:46,612 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] [2022-07-22 00:46:46,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-07-22 00:46:46,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 208. [2022-07-22 00:46:46,628 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) [2022-07-22 00:46:46,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 295 transitions. [2022-07-22 00:46:46,633 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 295 transitions. Word has length 16 [2022-07-22 00:46:46,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:46,637 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 295 transitions. [2022-07-22 00:46:46,637 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) [2022-07-22 00:46:46,637 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 295 transitions. [2022-07-22 00:46:46,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-22 00:46:46,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:46,638 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:46:46,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 00:46:46,839 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 [2022-07-22 00:46:46,839 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:46:46,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:46,840 INFO L85 PathProgramCache]: Analyzing trace with hash -864836854, now seen corresponding path program 1 times [2022-07-22 00:46:46,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:46,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651561153] [2022-07-22 00:46:46,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:46,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:46,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:46:46,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:46,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651561153] [2022-07-22 00:46:46,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651561153] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:46,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871947453] [2022-07-22 00:46:46,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:46,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:46:46,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:46:46,900 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) [2022-07-22 00:46:46,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 00:46:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:46,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 00:46:46,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:46:46,968 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:46:46,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:46:46,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871947453] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:46:46,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 00:46:46,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-22 00:46:46,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615925399] [2022-07-22 00:46:46,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:46:46,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:46:46,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:46,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:46:46,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 00:46:46,972 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) [2022-07-22 00:46:47,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:47,036 INFO L93 Difference]: Finished difference Result 260 states and 366 transitions. [2022-07-22 00:46:47,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:46:47,036 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 [2022-07-22 00:46:47,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:47,040 INFO L225 Difference]: With dead ends: 260 [2022-07-22 00:46:47,040 INFO L226 Difference]: Without dead ends: 258 [2022-07-22 00:46:47,040 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 [2022-07-22 00:46:47,043 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 [2022-07-22 00:46:47,043 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] [2022-07-22 00:46:47,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-07-22 00:46:47,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 201. [2022-07-22 00:46:47,063 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) [2022-07-22 00:46:47,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 280 transitions. [2022-07-22 00:46:47,064 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 280 transitions. Word has length 15 [2022-07-22 00:46:47,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:47,065 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 280 transitions. [2022-07-22 00:46:47,065 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) [2022-07-22 00:46:47,065 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 280 transitions. [2022-07-22 00:46:47,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-22 00:46:47,066 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:47,066 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:46:47,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 00:46:47,279 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 [2022-07-22 00:46:47,279 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:46:47,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:47,280 INFO L85 PathProgramCache]: Analyzing trace with hash 317482697, now seen corresponding path program 1 times [2022-07-22 00:46:47,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:47,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513521809] [2022-07-22 00:46:47,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:47,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:47,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:46:47,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:47,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-22 00:46:47,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:47,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513521809] [2022-07-22 00:46:47,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513521809] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:47,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644384011] [2022-07-22 00:46:47,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:47,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:46:47,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:46:47,322 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) [2022-07-22 00:46:47,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 00:46:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:47,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 00:46:47,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:46:47,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-22 00:46:47,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:46:47,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644384011] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:46:47,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 00:46:47,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2022-07-22 00:46:47,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029839617] [2022-07-22 00:46:47,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:46:47,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:46:47,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:47,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:46:47,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:46:47,379 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) [2022-07-22 00:46:47,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:47,407 INFO L93 Difference]: Finished difference Result 210 states and 289 transitions. [2022-07-22 00:46:47,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:46:47,408 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 [2022-07-22 00:46:47,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:47,409 INFO L225 Difference]: With dead ends: 210 [2022-07-22 00:46:47,409 INFO L226 Difference]: Without dead ends: 209 [2022-07-22 00:46:47,409 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 [2022-07-22 00:46:47,410 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 [2022-07-22 00:46:47,410 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] [2022-07-22 00:46:47,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-07-22 00:46:47,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 198. [2022-07-22 00:46:47,418 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) [2022-07-22 00:46:47,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 275 transitions. [2022-07-22 00:46:47,419 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 275 transitions. Word has length 17 [2022-07-22 00:46:47,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:47,420 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 275 transitions. [2022-07-22 00:46:47,420 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) [2022-07-22 00:46:47,420 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 275 transitions. [2022-07-22 00:46:47,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-22 00:46:47,421 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:47,421 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:46:47,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 00:46:47,643 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 [2022-07-22 00:46:47,643 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:46:47,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:47,644 INFO L85 PathProgramCache]: Analyzing trace with hash 2139477144, now seen corresponding path program 1 times [2022-07-22 00:46:47,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:47,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733697876] [2022-07-22 00:46:47,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:47,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:47,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:46:47,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:47,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:46:47,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:47,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733697876] [2022-07-22 00:46:47,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733697876] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:47,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099736783] [2022-07-22 00:46:47,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:47,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:46:47,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:46:47,695 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) [2022-07-22 00:46:47,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 00:46:47,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:47,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 00:46:47,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:46:47,779 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 00:46:47,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:46:47,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099736783] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:46:47,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 00:46:47,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-22 00:46:47,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545455623] [2022-07-22 00:46:47,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:46:47,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:46:47,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:47,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:46:47,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:46:47,781 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) [2022-07-22 00:46:47,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:47,886 INFO L93 Difference]: Finished difference Result 241 states and 329 transitions. [2022-07-22 00:46:47,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:46:47,887 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 [2022-07-22 00:46:47,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:47,889 INFO L225 Difference]: With dead ends: 241 [2022-07-22 00:46:47,889 INFO L226 Difference]: Without dead ends: 238 [2022-07-22 00:46:47,889 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 [2022-07-22 00:46:47,890 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 [2022-07-22 00:46:47,890 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] [2022-07-22 00:46:47,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-07-22 00:46:47,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 206. [2022-07-22 00:46:47,903 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) [2022-07-22 00:46:47,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 286 transitions. [2022-07-22 00:46:47,904 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 286 transitions. Word has length 18 [2022-07-22 00:46:47,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:47,904 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 286 transitions. [2022-07-22 00:46:47,905 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) [2022-07-22 00:46:47,905 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 286 transitions. [2022-07-22 00:46:47,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-22 00:46:47,907 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:47,907 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:46:47,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 00:46:48,123 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 [2022-07-22 00:46:48,124 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:46:48,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:48,124 INFO L85 PathProgramCache]: Analyzing trace with hash 251531834, now seen corresponding path program 1 times [2022-07-22 00:46:48,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:48,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539023835] [2022-07-22 00:46:48,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:48,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:48,156 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-22 00:46:48,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:48,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539023835] [2022-07-22 00:46:48,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539023835] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:46:48,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:46:48,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 00:46:48,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119436677] [2022-07-22 00:46:48,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:46:48,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:46:48,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:48,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:46:48,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:46:48,159 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) [2022-07-22 00:46:48,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:48,218 INFO L93 Difference]: Finished difference Result 261 states and 362 transitions. [2022-07-22 00:46:48,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:46:48,218 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 [2022-07-22 00:46:48,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:48,220 INFO L225 Difference]: With dead ends: 261 [2022-07-22 00:46:48,220 INFO L226 Difference]: Without dead ends: 259 [2022-07-22 00:46:48,220 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 [2022-07-22 00:46:48,221 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 [2022-07-22 00:46:48,221 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] [2022-07-22 00:46:48,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-07-22 00:46:48,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 206. [2022-07-22 00:46:48,230 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) [2022-07-22 00:46:48,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 284 transitions. [2022-07-22 00:46:48,231 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 284 transitions. Word has length 19 [2022-07-22 00:46:48,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:48,231 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 284 transitions. [2022-07-22 00:46:48,231 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) [2022-07-22 00:46:48,232 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 284 transitions. [2022-07-22 00:46:48,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-22 00:46:48,232 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:48,233 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 00:46:48,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 00:46:48,233 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:46:48,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:48,234 INFO L85 PathProgramCache]: Analyzing trace with hash -125890422, now seen corresponding path program 1 times [2022-07-22 00:46:48,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:48,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558412925] [2022-07-22 00:46:48,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:48,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:48,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:46:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:48,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:46:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:48,275 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-22 00:46:48,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:48,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558412925] [2022-07-22 00:46:48,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558412925] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:48,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835905898] [2022-07-22 00:46:48,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:48,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:46:48,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:46:48,277 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) [2022-07-22 00:46:48,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 00:46:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:48,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 00:46:48,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:46:48,360 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-22 00:46:48,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:46:48,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835905898] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:46:48,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 00:46:48,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-22 00:46:48,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118992690] [2022-07-22 00:46:48,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:46:48,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:46:48,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:48,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:46:48,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:46:48,363 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) [2022-07-22 00:46:48,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:48,434 INFO L93 Difference]: Finished difference Result 236 states and 325 transitions. [2022-07-22 00:46:48,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:46:48,435 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 [2022-07-22 00:46:48,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:48,436 INFO L225 Difference]: With dead ends: 236 [2022-07-22 00:46:48,436 INFO L226 Difference]: Without dead ends: 233 [2022-07-22 00:46:48,437 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 [2022-07-22 00:46:48,437 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 112 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-07-22 00:46:48,438 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] [2022-07-22 00:46:48,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-07-22 00:46:48,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 194. [2022-07-22 00:46:48,446 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) [2022-07-22 00:46:48,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 264 transitions. [2022-07-22 00:46:48,447 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 264 transitions. Word has length 23 [2022-07-22 00:46:48,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:48,448 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 264 transitions. [2022-07-22 00:46:48,448 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) [2022-07-22 00:46:48,448 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 264 transitions. [2022-07-22 00:46:48,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-22 00:46:48,449 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:48,449 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] [2022-07-22 00:46:48,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 00:46:48,671 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 [2022-07-22 00:46:48,672 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:46:48,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:48,672 INFO L85 PathProgramCache]: Analyzing trace with hash 165838642, now seen corresponding path program 1 times [2022-07-22 00:46:48,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:48,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900597333] [2022-07-22 00:46:48,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:48,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:48,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:46:48,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:48,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:46:48,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:48,731 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-22 00:46:48,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:48,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900597333] [2022-07-22 00:46:48,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900597333] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:48,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417359456] [2022-07-22 00:46:48,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:48,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:46:48,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:46:48,736 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) [2022-07-22 00:46:48,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 00:46:48,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:48,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 00:46:48,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:46:48,809 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-22 00:46:48,809 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:46:48,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417359456] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:46:48,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 00:46:48,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-22 00:46:48,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65360260] [2022-07-22 00:46:48,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:46:48,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 00:46:48,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:48,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 00:46:48,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:46:48,812 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) [2022-07-22 00:46:48,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:48,888 INFO L93 Difference]: Finished difference Result 224 states and 304 transitions. [2022-07-22 00:46:48,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 00:46:48,888 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 [2022-07-22 00:46:48,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:48,890 INFO L225 Difference]: With dead ends: 224 [2022-07-22 00:46:48,890 INFO L226 Difference]: Without dead ends: 221 [2022-07-22 00:46:48,890 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 [2022-07-22 00:46:48,891 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 [2022-07-22 00:46:48,891 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] [2022-07-22 00:46:48,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-07-22 00:46:48,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 183. [2022-07-22 00:46:48,902 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) [2022-07-22 00:46:48,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 249 transitions. [2022-07-22 00:46:48,903 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 249 transitions. Word has length 25 [2022-07-22 00:46:48,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:48,904 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 249 transitions. [2022-07-22 00:46:48,904 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) [2022-07-22 00:46:48,904 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 249 transitions. [2022-07-22 00:46:48,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-22 00:46:48,905 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:48,905 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] [2022-07-22 00:46:48,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 00:46:49,128 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 [2022-07-22 00:46:49,129 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:46:49,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:49,129 INFO L85 PathProgramCache]: Analyzing trace with hash 340378026, now seen corresponding path program 1 times [2022-07-22 00:46:49,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:49,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77667963] [2022-07-22 00:46:49,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:49,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:49,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:46:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:49,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:46:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:49,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 00:46:49,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:49,234 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-22 00:46:49,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:49,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77667963] [2022-07-22 00:46:49,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77667963] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:49,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881017925] [2022-07-22 00:46:49,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:49,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:46:49,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:46:49,237 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) [2022-07-22 00:46:49,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 00:46:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:49,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-22 00:46:49,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:46:49,360 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-22 00:46:49,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:46:49,514 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-22 00:46:49,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881017925] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:46:49,514 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:46:49,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 9] total 19 [2022-07-22 00:46:49,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329035312] [2022-07-22 00:46:49,515 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:46:49,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-22 00:46:49,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:49,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-22 00:46:49,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-07-22 00:46:49,517 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) [2022-07-22 00:46:50,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:50,866 INFO L93 Difference]: Finished difference Result 601 states and 806 transitions. [2022-07-22 00:46:50,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 00:46:50,867 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 [2022-07-22 00:46:50,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:50,869 INFO L225 Difference]: With dead ends: 601 [2022-07-22 00:46:50,869 INFO L226 Difference]: Without dead ends: 423 [2022-07-22 00:46:50,870 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 [2022-07-22 00:46:50,870 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 618 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:46:50,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 631 Invalid, 2032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1962 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 00:46:50,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-07-22 00:46:50,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 155. [2022-07-22 00:46:50,882 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) [2022-07-22 00:46:50,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 203 transitions. [2022-07-22 00:46:50,883 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 203 transitions. Word has length 30 [2022-07-22 00:46:50,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:50,884 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 203 transitions. [2022-07-22 00:46:50,884 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) [2022-07-22 00:46:50,884 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 203 transitions. [2022-07-22 00:46:50,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-22 00:46:50,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:50,885 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] [2022-07-22 00:46:50,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-22 00:46:51,099 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 [2022-07-22 00:46:51,099 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:46:51,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:51,100 INFO L85 PathProgramCache]: Analyzing trace with hash -809815083, now seen corresponding path program 1 times [2022-07-22 00:46:51,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:51,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119200372] [2022-07-22 00:46:51,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:51,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:51,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:46:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:51,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:46:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:51,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 00:46:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:51,229 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-22 00:46:51,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:51,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119200372] [2022-07-22 00:46:51,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119200372] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:46:51,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:46:51,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-22 00:46:51,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756370595] [2022-07-22 00:46:51,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:46:51,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 00:46:51,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:51,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 00:46:51,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-22 00:46:51,232 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) [2022-07-22 00:46:51,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:51,778 INFO L93 Difference]: Finished difference Result 404 states and 522 transitions. [2022-07-22 00:46:51,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 00:46:51,778 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 [2022-07-22 00:46:51,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:51,780 INFO L225 Difference]: With dead ends: 404 [2022-07-22 00:46:51,780 INFO L226 Difference]: Without dead ends: 330 [2022-07-22 00:46:51,781 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 [2022-07-22 00:46:51,781 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, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 00:46:51,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 501 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 00:46:51,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-07-22 00:46:51,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 166. [2022-07-22 00:46:51,801 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) [2022-07-22 00:46:51,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 215 transitions. [2022-07-22 00:46:51,803 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 215 transitions. Word has length 37 [2022-07-22 00:46:51,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:51,803 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 215 transitions. [2022-07-22 00:46:51,804 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) [2022-07-22 00:46:51,804 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 215 transitions. [2022-07-22 00:46:51,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-22 00:46:51,805 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:51,805 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] [2022-07-22 00:46:51,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-22 00:46:51,806 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:46:51,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:51,807 INFO L85 PathProgramCache]: Analyzing trace with hash 311287935, now seen corresponding path program 1 times [2022-07-22 00:46:51,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:51,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727178879] [2022-07-22 00:46:51,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:51,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:51,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:46:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:51,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:46:51,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:51,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 00:46:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:51,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 00:46:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:51,927 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-22 00:46:51,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:51,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727178879] [2022-07-22 00:46:51,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727178879] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:51,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994375958] [2022-07-22 00:46:51,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:51,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:46:51,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:46:51,930 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) [2022-07-22 00:46:51,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-22 00:46:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:51,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 00:46:51,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:46:52,135 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-22 00:46:52,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:46:52,205 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-22 00:46:52,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994375958] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:46:52,206 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:46:52,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 19 [2022-07-22 00:46:52,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116563723] [2022-07-22 00:46:52,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:46:52,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-22 00:46:52,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:52,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-22 00:46:52,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-07-22 00:46:52,208 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) [2022-07-22 00:46:54,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:54,555 INFO L93 Difference]: Finished difference Result 793 states and 1023 transitions. [2022-07-22 00:46:54,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-22 00:46:54,559 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 [2022-07-22 00:46:54,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:54,562 INFO L225 Difference]: With dead ends: 793 [2022-07-22 00:46:54,563 INFO L226 Difference]: Without dead ends: 704 [2022-07-22 00:46:54,564 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 [2022-07-22 00:46:54,564 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 1733 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 3847 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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 [2022-07-22 00:46:54,564 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] [2022-07-22 00:46:54,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2022-07-22 00:46:54,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 153. [2022-07-22 00:46:54,579 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) [2022-07-22 00:46:54,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 197 transitions. [2022-07-22 00:46:54,580 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 197 transitions. Word has length 41 [2022-07-22 00:46:54,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:54,580 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 197 transitions. [2022-07-22 00:46:54,580 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) [2022-07-22 00:46:54,580 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 197 transitions. [2022-07-22 00:46:54,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-22 00:46:54,581 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:54,581 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] [2022-07-22 00:46:54,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-22 00:46:54,795 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 [2022-07-22 00:46:54,796 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:46:54,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:54,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1966221434, now seen corresponding path program 2 times [2022-07-22 00:46:54,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:54,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754849109] [2022-07-22 00:46:54,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:54,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:54,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:46:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:54,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:46:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:54,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 00:46:54,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:54,970 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-22 00:46:54,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:54,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754849109] [2022-07-22 00:46:54,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754849109] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:46:54,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:46:54,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-22 00:46:54,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120423837] [2022-07-22 00:46:54,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:46:54,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-22 00:46:54,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:54,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 00:46:54,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-22 00:46:54,973 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) [2022-07-22 00:46:55,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:55,879 INFO L93 Difference]: Finished difference Result 480 states and 620 transitions. [2022-07-22 00:46:55,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 00:46:55,879 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 [2022-07-22 00:46:55,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:55,881 INFO L225 Difference]: With dead ends: 480 [2022-07-22 00:46:55,882 INFO L226 Difference]: Without dead ends: 410 [2022-07-22 00:46:55,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-07-22 00:46:55,884 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, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 00:46:55,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 666 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 00:46:55,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-07-22 00:46:55,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 227. [2022-07-22 00:46:55,900 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) [2022-07-22 00:46:55,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 302 transitions. [2022-07-22 00:46:55,901 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 302 transitions. Word has length 41 [2022-07-22 00:46:55,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:55,901 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 302 transitions. [2022-07-22 00:46:55,902 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) [2022-07-22 00:46:55,902 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 302 transitions. [2022-07-22 00:46:55,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-22 00:46:55,902 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:55,903 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] [2022-07-22 00:46:55,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-22 00:46:55,903 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:46:55,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:55,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1519399236, now seen corresponding path program 1 times [2022-07-22 00:46:55,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:55,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236627591] [2022-07-22 00:46:55,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:55,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:55,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:46:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:55,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:46:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:56,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 00:46:56,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:56,033 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-22 00:46:56,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:56,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236627591] [2022-07-22 00:46:56,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236627591] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:56,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708676084] [2022-07-22 00:46:56,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:56,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:46:56,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:46:56,037 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) [2022-07-22 00:46:56,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-22 00:46:56,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:56,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-22 00:46:56,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:46:56,168 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-22 00:46:56,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:46:56,339 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-22 00:46:56,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708676084] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:46:56,340 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:46:56,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 16 [2022-07-22 00:46:56,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437394380] [2022-07-22 00:46:56,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:46:56,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-22 00:46:56,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:56,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-22 00:46:56,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-07-22 00:46:56,343 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) [2022-07-22 00:46:57,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:57,330 INFO L93 Difference]: Finished difference Result 624 states and 842 transitions. [2022-07-22 00:46:57,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 00:46:57,332 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 [2022-07-22 00:46:57,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:57,334 INFO L225 Difference]: With dead ends: 624 [2022-07-22 00:46:57,334 INFO L226 Difference]: Without dead ends: 492 [2022-07-22 00:46:57,335 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 [2022-07-22 00:46:57,335 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 526 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 00:46:57,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 677 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 00:46:57,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-07-22 00:46:57,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 338. [2022-07-22 00:46:57,357 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) [2022-07-22 00:46:57,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 462 transitions. [2022-07-22 00:46:57,359 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 462 transitions. Word has length 41 [2022-07-22 00:46:57,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:57,359 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 462 transitions. [2022-07-22 00:46:57,360 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) [2022-07-22 00:46:57,360 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 462 transitions. [2022-07-22 00:46:57,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-22 00:46:57,360 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:57,361 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] [2022-07-22 00:46:57,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-22 00:46:57,576 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 [2022-07-22 00:46:57,576 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:46:57,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:57,577 INFO L85 PathProgramCache]: Analyzing trace with hash -440801234, now seen corresponding path program 1 times [2022-07-22 00:46:57,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:57,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970659789] [2022-07-22 00:46:57,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:57,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:57,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:46:57,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:57,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:46:57,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:57,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 00:46:57,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:57,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 00:46:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:57,679 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-22 00:46:57,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:57,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970659789] [2022-07-22 00:46:57,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970659789] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:57,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1507615569] [2022-07-22 00:46:57,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:57,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:46:57,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:46:57,683 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) [2022-07-22 00:46:57,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-22 00:46:57,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:57,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-22 00:46:57,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:46:57,806 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-22 00:46:57,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:46:57,952 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-22 00:46:57,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1507615569] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:57,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-22 00:46:57,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11, 11] total 20 [2022-07-22 00:46:57,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763814791] [2022-07-22 00:46:57,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:46:57,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 00:46:57,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:57,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 00:46:57,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-07-22 00:46:57,953 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) [2022-07-22 00:46:58,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:58,162 INFO L93 Difference]: Finished difference Result 695 states and 959 transitions. [2022-07-22 00:46:58,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 00:46:58,163 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 [2022-07-22 00:46:58,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:58,165 INFO L225 Difference]: With dead ends: 695 [2022-07-22 00:46:58,166 INFO L226 Difference]: Without dead ends: 607 [2022-07-22 00:46:58,166 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 [2022-07-22 00:46:58,167 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 [2022-07-22 00:46:58,167 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] [2022-07-22 00:46:58,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-07-22 00:46:58,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 327. [2022-07-22 00:46:58,187 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) [2022-07-22 00:46:58,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 448 transitions. [2022-07-22 00:46:58,188 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 448 transitions. Word has length 45 [2022-07-22 00:46:58,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:58,189 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 448 transitions. [2022-07-22 00:46:58,189 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) [2022-07-22 00:46:58,189 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 448 transitions. [2022-07-22 00:46:58,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-22 00:46:58,190 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:58,190 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] [2022-07-22 00:46:58,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-22 00:46:58,415 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 [2022-07-22 00:46:58,416 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:46:58,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:58,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1658343875, now seen corresponding path program 1 times [2022-07-22 00:46:58,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:58,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754898314] [2022-07-22 00:46:58,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:58,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:58,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:46:58,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:58,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:46:58,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:58,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 00:46:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:58,448 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-22 00:46:58,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:58,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754898314] [2022-07-22 00:46:58,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754898314] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:58,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065252594] [2022-07-22 00:46:58,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:58,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:46:58,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:46:58,450 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) [2022-07-22 00:46:58,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-22 00:46:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:58,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 00:46:58,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:46:58,515 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-22 00:46:58,515 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:46:58,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065252594] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:46:58,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 00:46:58,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2022-07-22 00:46:58,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033461273] [2022-07-22 00:46:58,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:46:58,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 00:46:58,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:58,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 00:46:58,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:46:58,517 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) [2022-07-22 00:46:58,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:46:58,563 INFO L93 Difference]: Finished difference Result 586 states and 804 transitions. [2022-07-22 00:46:58,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 00:46:58,563 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 [2022-07-22 00:46:58,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:46:58,565 INFO L225 Difference]: With dead ends: 586 [2022-07-22 00:46:58,565 INFO L226 Difference]: Without dead ends: 351 [2022-07-22 00:46:58,566 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 [2022-07-22 00:46:58,567 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 [2022-07-22 00:46:58,567 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] [2022-07-22 00:46:58,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-07-22 00:46:58,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 337. [2022-07-22 00:46:58,598 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) [2022-07-22 00:46:58,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 458 transitions. [2022-07-22 00:46:58,599 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 458 transitions. Word has length 47 [2022-07-22 00:46:58,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:46:58,600 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 458 transitions. [2022-07-22 00:46:58,600 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) [2022-07-22 00:46:58,600 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 458 transitions. [2022-07-22 00:46:58,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-22 00:46:58,601 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:46:58,601 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] [2022-07-22 00:46:58,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-22 00:46:58,824 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 [2022-07-22 00:46:58,825 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:46:58,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:46:58,825 INFO L85 PathProgramCache]: Analyzing trace with hash -836152950, now seen corresponding path program 1 times [2022-07-22 00:46:58,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:46:58,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119870289] [2022-07-22 00:46:58,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:58,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:46:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:58,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:46:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:58,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:46:58,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:58,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 00:46:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:58,916 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-22 00:46:58,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:46:58,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119870289] [2022-07-22 00:46:58,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119870289] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:46:58,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879977108] [2022-07-22 00:46:58,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:46:58,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:46:58,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:46:58,919 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) [2022-07-22 00:46:58,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-22 00:46:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:46:58,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 00:46:58,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:46:59,024 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-22 00:46:59,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:46:59,103 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-22 00:46:59,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879977108] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:46:59,103 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:46:59,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 11 [2022-07-22 00:46:59,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638423925] [2022-07-22 00:46:59,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:46:59,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-22 00:46:59,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:46:59,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 00:46:59,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-22 00:46:59,106 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) [2022-07-22 00:47:00,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:47:00,338 INFO L93 Difference]: Finished difference Result 1032 states and 1414 transitions. [2022-07-22 00:47:00,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-22 00:47:00,338 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 [2022-07-22 00:47:00,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:47:00,342 INFO L225 Difference]: With dead ends: 1032 [2022-07-22 00:47:00,342 INFO L226 Difference]: Without dead ends: 919 [2022-07-22 00:47:00,343 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 [2022-07-22 00:47:00,343 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 395 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 2240 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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 [2022-07-22 00:47:00,344 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] [2022-07-22 00:47:00,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-07-22 00:47:00,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 475. [2022-07-22 00:47:00,384 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) [2022-07-22 00:47:00,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 659 transitions. [2022-07-22 00:47:00,387 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 659 transitions. Word has length 48 [2022-07-22 00:47:00,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:47:00,387 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 659 transitions. [2022-07-22 00:47:00,387 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) [2022-07-22 00:47:00,388 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 659 transitions. [2022-07-22 00:47:00,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-22 00:47:00,388 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:47:00,389 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] [2022-07-22 00:47:00,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-22 00:47:00,612 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 [2022-07-22 00:47:00,612 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:47:00,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:47:00,612 INFO L85 PathProgramCache]: Analyzing trace with hash -836151028, now seen corresponding path program 1 times [2022-07-22 00:47:00,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:47:00,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146640142] [2022-07-22 00:47:00,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:00,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:47:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:00,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:47:00,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:00,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:47:00,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:00,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 00:47:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:00,694 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-22 00:47:00,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:47:00,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146640142] [2022-07-22 00:47:00,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146640142] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:47:00,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299742032] [2022-07-22 00:47:00,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:00,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:47:00,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:47:00,696 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) [2022-07-22 00:47:00,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-22 00:47:00,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:00,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-22 00:47:00,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:47:00,871 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-22 00:47:00,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:47:01,036 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-22 00:47:01,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299742032] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:47:01,036 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:47:01,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 19 [2022-07-22 00:47:01,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416626970] [2022-07-22 00:47:01,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:47:01,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-22 00:47:01,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:47:01,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-22 00:47:01,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-07-22 00:47:01,038 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) [2022-07-22 00:47:02,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:47:02,299 INFO L93 Difference]: Finished difference Result 1166 states and 1621 transitions. [2022-07-22 00:47:02,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-07-22 00:47:02,300 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 [2022-07-22 00:47:02,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:47:02,303 INFO L225 Difference]: With dead ends: 1166 [2022-07-22 00:47:02,303 INFO L226 Difference]: Without dead ends: 959 [2022-07-22 00:47:02,305 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 [2022-07-22 00:47:02,306 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 [2022-07-22 00:47:02,306 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] [2022-07-22 00:47:02,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-07-22 00:47:02,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 605. [2022-07-22 00:47:02,348 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) [2022-07-22 00:47:02,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 849 transitions. [2022-07-22 00:47:02,350 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 849 transitions. Word has length 48 [2022-07-22 00:47:02,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:47:02,351 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 849 transitions. [2022-07-22 00:47:02,351 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) [2022-07-22 00:47:02,351 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 849 transitions. [2022-07-22 00:47:02,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-22 00:47:02,352 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:47:02,352 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] [2022-07-22 00:47:02,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-22 00:47:02,565 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 [2022-07-22 00:47:02,566 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:47:02,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:47:02,566 INFO L85 PathProgramCache]: Analyzing trace with hash 2123358745, now seen corresponding path program 1 times [2022-07-22 00:47:02,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:47:02,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889201132] [2022-07-22 00:47:02,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:02,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:47:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:02,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:47:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:02,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:47:02,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:02,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 00:47:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:02,633 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-22 00:47:02,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:47:02,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889201132] [2022-07-22 00:47:02,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889201132] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:47:02,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710111915] [2022-07-22 00:47:02,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:02,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:47:02,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:47:02,635 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) [2022-07-22 00:47:02,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-22 00:47:02,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:02,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 00:47:02,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:47:02,718 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-22 00:47:02,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:47:02,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710111915] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:47:02,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 00:47:02,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-07-22 00:47:02,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228632695] [2022-07-22 00:47:02,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:47:02,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:47:02,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:47:02,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:47:02,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-22 00:47:02,720 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) [2022-07-22 00:47:02,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:47:02,812 INFO L93 Difference]: Finished difference Result 1197 states and 1698 transitions. [2022-07-22 00:47:02,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:47:02,814 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 [2022-07-22 00:47:02,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:47:02,816 INFO L225 Difference]: With dead ends: 1197 [2022-07-22 00:47:02,817 INFO L226 Difference]: Without dead ends: 681 [2022-07-22 00:47:02,818 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 [2022-07-22 00:47:02,818 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 00:47:02,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 259 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 00:47:02,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2022-07-22 00:47:02,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 631. [2022-07-22 00:47:02,853 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) [2022-07-22 00:47:02,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 881 transitions. [2022-07-22 00:47:02,856 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 881 transitions. Word has length 48 [2022-07-22 00:47:02,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:47:02,856 INFO L495 AbstractCegarLoop]: Abstraction has 631 states and 881 transitions. [2022-07-22 00:47:02,856 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) [2022-07-22 00:47:02,856 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 881 transitions. [2022-07-22 00:47:02,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-22 00:47:02,857 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:47:02,858 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] [2022-07-22 00:47:02,880 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-07-22 00:47:03,079 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 [2022-07-22 00:47:03,080 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:47:03,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:47:03,080 INFO L85 PathProgramCache]: Analyzing trace with hash -343040408, now seen corresponding path program 1 times [2022-07-22 00:47:03,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:47:03,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318714182] [2022-07-22 00:47:03,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:03,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:47:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:03,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:47:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:03,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:47:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:03,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 00:47:03,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:03,126 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-22 00:47:03,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:47:03,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318714182] [2022-07-22 00:47:03,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318714182] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:47:03,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727481965] [2022-07-22 00:47:03,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:03,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:47:03,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:47:03,128 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) [2022-07-22 00:47:03,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-22 00:47:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:03,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 00:47:03,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:47:03,222 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-22 00:47:03,223 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 00:47:03,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727481965] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:47:03,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 00:47:03,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2022-07-22 00:47:03,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28839580] [2022-07-22 00:47:03,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:47:03,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:47:03,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:47:03,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:47:03,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 00:47:03,225 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) [2022-07-22 00:47:03,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:47:03,314 INFO L93 Difference]: Finished difference Result 1025 states and 1440 transitions. [2022-07-22 00:47:03,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 00:47:03,314 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 [2022-07-22 00:47:03,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:47:03,317 INFO L225 Difference]: With dead ends: 1025 [2022-07-22 00:47:03,317 INFO L226 Difference]: Without dead ends: 653 [2022-07-22 00:47:03,318 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 [2022-07-22 00:47:03,319 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 [2022-07-22 00:47:03,320 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] [2022-07-22 00:47:03,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2022-07-22 00:47:03,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 633. [2022-07-22 00:47:03,354 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) [2022-07-22 00:47:03,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 885 transitions. [2022-07-22 00:47:03,357 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 885 transitions. Word has length 49 [2022-07-22 00:47:03,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:47:03,358 INFO L495 AbstractCegarLoop]: Abstraction has 633 states and 885 transitions. [2022-07-22 00:47:03,358 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) [2022-07-22 00:47:03,358 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 885 transitions. [2022-07-22 00:47:03,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-22 00:47:03,359 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:47:03,359 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] [2022-07-22 00:47:03,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-22 00:47:03,579 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 [2022-07-22 00:47:03,579 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:47:03,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:47:03,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1723318001, now seen corresponding path program 1 times [2022-07-22 00:47:03,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:47:03,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745834442] [2022-07-22 00:47:03,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:03,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:47:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:03,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:47:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:03,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:47:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:03,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-22 00:47:03,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:03,810 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-22 00:47:03,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:47:03,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745834442] [2022-07-22 00:47:03,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745834442] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:47:03,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:47:03,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 00:47:03,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521988471] [2022-07-22 00:47:03,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:47:03,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 00:47:03,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:47:03,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 00:47:03,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 00:47:03,813 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) [2022-07-22 00:47:04,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:47:04,893 INFO L93 Difference]: Finished difference Result 1068 states and 1499 transitions. [2022-07-22 00:47:04,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 00:47:04,893 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 [2022-07-22 00:47:04,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:47:04,897 INFO L225 Difference]: With dead ends: 1068 [2022-07-22 00:47:04,897 INFO L226 Difference]: Without dead ends: 1067 [2022-07-22 00:47:04,898 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 [2022-07-22 00:47:04,898 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, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 00:47:04,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 580 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 00:47:04,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2022-07-22 00:47:04,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 629. [2022-07-22 00:47:04,939 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) [2022-07-22 00:47:04,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 879 transitions. [2022-07-22 00:47:04,942 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 879 transitions. Word has length 50 [2022-07-22 00:47:04,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:47:04,942 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 879 transitions. [2022-07-22 00:47:04,942 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) [2022-07-22 00:47:04,942 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 879 transitions. [2022-07-22 00:47:04,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-22 00:47:04,944 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:47:04,944 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] [2022-07-22 00:47:04,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-22 00:47:04,944 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:47:04,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:47:04,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1460160345, now seen corresponding path program 1 times [2022-07-22 00:47:04,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:47:04,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789072878] [2022-07-22 00:47:04,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:04,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:47:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:05,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:47:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:05,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:47:05,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:05,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 00:47:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:05,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 00:47:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:05,099 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-22 00:47:05,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:47:05,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789072878] [2022-07-22 00:47:05,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789072878] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:47:05,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988310269] [2022-07-22 00:47:05,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:05,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:47:05,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:47:05,104 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) [2022-07-22 00:47:05,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-22 00:47:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:05,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-22 00:47:05,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:47:05,285 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-22 00:47:05,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:47:05,365 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-22 00:47:05,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988310269] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:47:05,366 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:47:05,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 19 [2022-07-22 00:47:05,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226507776] [2022-07-22 00:47:05,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:47:05,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-22 00:47:05,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:47:05,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-22 00:47:05,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-07-22 00:47:05,367 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) [2022-07-22 00:47:10,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:47:10,502 INFO L93 Difference]: Finished difference Result 3384 states and 4915 transitions. [2022-07-22 00:47:10,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-07-22 00:47:10,502 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 [2022-07-22 00:47:10,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:47:10,513 INFO L225 Difference]: With dead ends: 3384 [2022-07-22 00:47:10,513 INFO L226 Difference]: Without dead ends: 2998 [2022-07-22 00:47:10,515 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 [2022-07-22 00:47:10,516 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 2472 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 8028 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s 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, 3.8s IncrementalHoareTripleChecker+Time [2022-07-22 00:47:10,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 675 Invalid, 8455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 8028 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-22 00:47:10,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2022-07-22 00:47:10,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 685. [2022-07-22 00:47:10,579 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) [2022-07-22 00:47:10,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 954 transitions. [2022-07-22 00:47:10,582 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 954 transitions. Word has length 56 [2022-07-22 00:47:10,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:47:10,582 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 954 transitions. [2022-07-22 00:47:10,582 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) [2022-07-22 00:47:10,582 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 954 transitions. [2022-07-22 00:47:10,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-22 00:47:10,584 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:47:10,584 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] [2022-07-22 00:47:10,609 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-22 00:47:10,803 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 [2022-07-22 00:47:10,803 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:47:10,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:47:10,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1529476761, now seen corresponding path program 1 times [2022-07-22 00:47:10,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:47:10,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741898127] [2022-07-22 00:47:10,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:10,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:47:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:10,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:47:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:10,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:47:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:10,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 00:47:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:10,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 00:47:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:10,918 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-22 00:47:10,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:47:10,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741898127] [2022-07-22 00:47:10,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741898127] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:47:10,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064082475] [2022-07-22 00:47:10,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:10,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:47:10,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:47:10,920 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) [2022-07-22 00:47:10,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-22 00:47:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:10,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-22 00:47:10,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:47:11,024 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-22 00:47:11,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:47:11,091 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-22 00:47:11,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064082475] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:47:11,091 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:47:11,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 13 [2022-07-22 00:47:11,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259216034] [2022-07-22 00:47:11,092 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:47:11,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 00:47:11,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:47:11,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 00:47:11,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2022-07-22 00:47:11,093 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) [2022-07-22 00:47:13,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:47:13,720 INFO L93 Difference]: Finished difference Result 2890 states and 4178 transitions. [2022-07-22 00:47:13,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-22 00:47:13,723 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 [2022-07-22 00:47:13,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:47:13,732 INFO L225 Difference]: With dead ends: 2890 [2022-07-22 00:47:13,732 INFO L226 Difference]: Without dead ends: 2755 [2022-07-22 00:47:13,733 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 [2022-07-22 00:47:13,734 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 [2022-07-22 00:47:13,734 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] [2022-07-22 00:47:13,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2022-07-22 00:47:13,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 708. [2022-07-22 00:47:13,793 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) [2022-07-22 00:47:13,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 983 transitions. [2022-07-22 00:47:13,796 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 983 transitions. Word has length 56 [2022-07-22 00:47:13,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:47:13,796 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 983 transitions. [2022-07-22 00:47:13,796 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) [2022-07-22 00:47:13,796 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 983 transitions. [2022-07-22 00:47:13,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-22 00:47:13,798 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:47:13,798 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] [2022-07-22 00:47:13,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-22 00:47:14,015 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 [2022-07-22 00:47:14,015 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:47:14,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:47:14,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1529474839, now seen corresponding path program 1 times [2022-07-22 00:47:14,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:47:14,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776522279] [2022-07-22 00:47:14,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:14,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:47:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:14,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:47:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:14,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:47:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:14,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 00:47:14,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:14,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 00:47:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:14,106 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-22 00:47:14,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:47:14,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776522279] [2022-07-22 00:47:14,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776522279] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:47:14,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547264591] [2022-07-22 00:47:14,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:14,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:47:14,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:47:14,112 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) [2022-07-22 00:47:14,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-22 00:47:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:14,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-22 00:47:14,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:47:14,295 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-22 00:47:14,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:47:14,467 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-22 00:47:14,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547264591] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:47:14,467 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:47:14,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 21 [2022-07-22 00:47:14,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726739469] [2022-07-22 00:47:14,468 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:47:14,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-22 00:47:14,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:47:14,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-22 00:47:14,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2022-07-22 00:47:14,470 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) [2022-07-22 00:47:17,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:47:17,189 INFO L93 Difference]: Finished difference Result 2445 states and 3441 transitions. [2022-07-22 00:47:17,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-07-22 00:47:17,190 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 [2022-07-22 00:47:17,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:47:17,197 INFO L225 Difference]: With dead ends: 2445 [2022-07-22 00:47:17,197 INFO L226 Difference]: Without dead ends: 2314 [2022-07-22 00:47:17,198 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 [2022-07-22 00:47:17,199 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 [2022-07-22 00:47:17,199 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] [2022-07-22 00:47:17,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2022-07-22 00:47:17,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 724. [2022-07-22 00:47:17,257 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) [2022-07-22 00:47:17,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1003 transitions. [2022-07-22 00:47:17,259 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1003 transitions. Word has length 56 [2022-07-22 00:47:17,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:47:17,260 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 1003 transitions. [2022-07-22 00:47:17,260 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) [2022-07-22 00:47:17,260 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1003 transitions. [2022-07-22 00:47:17,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-22 00:47:17,261 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:47:17,262 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] [2022-07-22 00:47:17,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-22 00:47:17,484 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 [2022-07-22 00:47:17,485 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:47:17,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:47:17,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1956143909, now seen corresponding path program 2 times [2022-07-22 00:47:17,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:47:17,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371128927] [2022-07-22 00:47:17,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:17,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:47:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:17,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:47:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:17,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:47:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:17,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 00:47:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:17,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 00:47:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:17,643 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-22 00:47:17,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:47:17,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371128927] [2022-07-22 00:47:17,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371128927] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:47:17,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265366322] [2022-07-22 00:47:17,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 00:47:17,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:47:17,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:47:17,645 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) [2022-07-22 00:47:17,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-22 00:47:17,715 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 00:47:17,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 00:47:17,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-22 00:47:17,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:47:17,805 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-22 00:47:17,806 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:47:17,909 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-22 00:47:17,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265366322] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:47:17,909 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:47:17,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 19 [2022-07-22 00:47:17,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327965111] [2022-07-22 00:47:17,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:47:17,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-22 00:47:17,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:47:17,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-22 00:47:17,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-07-22 00:47:17,911 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) [2022-07-22 00:47:22,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:47:22,177 INFO L93 Difference]: Finished difference Result 2693 states and 3787 transitions. [2022-07-22 00:47:22,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-22 00:47:22,177 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 [2022-07-22 00:47:22,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:47:22,183 INFO L225 Difference]: With dead ends: 2693 [2022-07-22 00:47:22,183 INFO L226 Difference]: Without dead ends: 2323 [2022-07-22 00:47:22,185 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 [2022-07-22 00:47:22,186 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, 3.4s IncrementalHoareTripleChecker+Time [2022-07-22 00:47:22,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 660 Invalid, 7881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [288 Valid, 7593 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-22 00:47:22,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2323 states. [2022-07-22 00:47:22,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2323 to 736. [2022-07-22 00:47:22,257 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) [2022-07-22 00:47:22,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1009 transitions. [2022-07-22 00:47:22,259 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1009 transitions. Word has length 56 [2022-07-22 00:47:22,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:47:22,260 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 1009 transitions. [2022-07-22 00:47:22,260 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) [2022-07-22 00:47:22,260 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1009 transitions. [2022-07-22 00:47:22,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-22 00:47:22,261 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:47:22,261 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] [2022-07-22 00:47:22,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-22 00:47:22,483 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 [2022-07-22 00:47:22,483 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:47:22,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:47:22,484 INFO L85 PathProgramCache]: Analyzing trace with hash -571398184, now seen corresponding path program 1 times [2022-07-22 00:47:22,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:47:22,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182997703] [2022-07-22 00:47:22,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:22,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:47:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:22,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:47:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:22,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:47:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:22,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 00:47:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:22,516 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-22 00:47:22,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:47:22,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182997703] [2022-07-22 00:47:22,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182997703] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:47:22,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:47:22,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 00:47:22,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528786526] [2022-07-22 00:47:22,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:47:22,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 00:47:22,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:47:22,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 00:47:22,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 00:47:22,518 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) [2022-07-22 00:47:22,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:47:22,666 INFO L93 Difference]: Finished difference Result 1121 states and 1522 transitions. [2022-07-22 00:47:22,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 00:47:22,667 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 [2022-07-22 00:47:22,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:47:22,670 INFO L225 Difference]: With dead ends: 1121 [2022-07-22 00:47:22,670 INFO L226 Difference]: Without dead ends: 866 [2022-07-22 00:47:22,671 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 [2022-07-22 00:47:22,672 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 [2022-07-22 00:47:22,672 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] [2022-07-22 00:47:22,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2022-07-22 00:47:22,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 766. [2022-07-22 00:47:22,727 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) [2022-07-22 00:47:22,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1056 transitions. [2022-07-22 00:47:22,729 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1056 transitions. Word has length 55 [2022-07-22 00:47:22,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:47:22,729 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 1056 transitions. [2022-07-22 00:47:22,729 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) [2022-07-22 00:47:22,730 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1056 transitions. [2022-07-22 00:47:22,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-22 00:47:22,731 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:47:22,731 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] [2022-07-22 00:47:22,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-22 00:47:22,731 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:47:22,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:47:22,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1837019720, now seen corresponding path program 1 times [2022-07-22 00:47:22,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:47:22,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200001493] [2022-07-22 00:47:22,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:22,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:47:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:22,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:47:22,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:22,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:47:22,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:22,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 00:47:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:22,818 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-22 00:47:22,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:47:22,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200001493] [2022-07-22 00:47:22,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200001493] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:47:22,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:47:22,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 00:47:22,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899866617] [2022-07-22 00:47:22,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:47:22,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 00:47:22,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:47:22,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 00:47:22,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-22 00:47:22,821 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) [2022-07-22 00:47:24,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:47:24,118 INFO L93 Difference]: Finished difference Result 2285 states and 3327 transitions. [2022-07-22 00:47:24,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-22 00:47:24,118 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 [2022-07-22 00:47:24,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:47:24,128 INFO L225 Difference]: With dead ends: 2285 [2022-07-22 00:47:24,129 INFO L226 Difference]: Without dead ends: 2053 [2022-07-22 00:47:24,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2022-07-22 00:47:24,130 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 434 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 2871 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 00:47:24,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 888 Invalid, 2933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2871 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 00:47:24,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2053 states. [2022-07-22 00:47:24,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2053 to 951. [2022-07-22 00:47:24,205 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) [2022-07-22 00:47:24,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1334 transitions. [2022-07-22 00:47:24,207 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1334 transitions. Word has length 55 [2022-07-22 00:47:24,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:47:24,208 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1334 transitions. [2022-07-22 00:47:24,208 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) [2022-07-22 00:47:24,208 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1334 transitions. [2022-07-22 00:47:24,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-22 00:47:24,209 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:47:24,209 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] [2022-07-22 00:47:24,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-22 00:47:24,210 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:47:24,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:47:24,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1837021642, now seen corresponding path program 1 times [2022-07-22 00:47:24,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:47:24,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702540037] [2022-07-22 00:47:24,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:24,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:47:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:24,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:47:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:24,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:47:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:24,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 00:47:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:24,281 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-22 00:47:24,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:47:24,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702540037] [2022-07-22 00:47:24,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702540037] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:47:24,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:47:24,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 00:47:24,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045717821] [2022-07-22 00:47:24,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:47:24,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-22 00:47:24,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:47:24,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 00:47:24,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-22 00:47:24,284 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) [2022-07-22 00:47:25,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:47:25,102 INFO L93 Difference]: Finished difference Result 2622 states and 3839 transitions. [2022-07-22 00:47:25,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-22 00:47:25,102 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 [2022-07-22 00:47:25,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:47:25,109 INFO L225 Difference]: With dead ends: 2622 [2022-07-22 00:47:25,109 INFO L226 Difference]: Without dead ends: 2158 [2022-07-22 00:47:25,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2022-07-22 00:47:25,111 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 [2022-07-22 00:47:25,111 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] [2022-07-22 00:47:25,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2022-07-22 00:47:25,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 1146. [2022-07-22 00:47:25,205 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) [2022-07-22 00:47:25,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1621 transitions. [2022-07-22 00:47:25,208 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1621 transitions. Word has length 55 [2022-07-22 00:47:25,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:47:25,209 INFO L495 AbstractCegarLoop]: Abstraction has 1146 states and 1621 transitions. [2022-07-22 00:47:25,209 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) [2022-07-22 00:47:25,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1621 transitions. [2022-07-22 00:47:25,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-22 00:47:25,211 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:47:25,211 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] [2022-07-22 00:47:25,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-22 00:47:25,211 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:47:25,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:47:25,212 INFO L85 PathProgramCache]: Analyzing trace with hash -474152029, now seen corresponding path program 1 times [2022-07-22 00:47:25,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:47:25,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298882425] [2022-07-22 00:47:25,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:25,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:47:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:25,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:47:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:25,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:47:25,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:25,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-22 00:47:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:25,338 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-22 00:47:25,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:47:25,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298882425] [2022-07-22 00:47:25,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298882425] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 00:47:25,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572361181] [2022-07-22 00:47:25,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:25,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 00:47:25,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 00:47:25,344 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) [2022-07-22 00:47:25,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-22 00:47:25,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:25,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 25 conjunts are in the unsatisfiable core [2022-07-22 00:47:25,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 00:47:25,516 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-22 00:47:25,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 00:47:25,696 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-22 00:47:25,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572361181] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 00:47:25,696 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-22 00:47:25,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 10] total 22 [2022-07-22 00:47:25,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928932991] [2022-07-22 00:47:25,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-22 00:47:25,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-22 00:47:25,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:47:25,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-22 00:47:25,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-07-22 00:47:25,698 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) [2022-07-22 00:47:26,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:47:26,769 INFO L93 Difference]: Finished difference Result 1353 states and 1874 transitions. [2022-07-22 00:47:26,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-22 00:47:26,769 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 [2022-07-22 00:47:26,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:47:26,772 INFO L225 Difference]: With dead ends: 1353 [2022-07-22 00:47:26,772 INFO L226 Difference]: Without dead ends: 1096 [2022-07-22 00:47:26,773 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 [2022-07-22 00:47:26,774 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 [2022-07-22 00:47:26,774 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] [2022-07-22 00:47:26,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-07-22 00:47:26,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 959. [2022-07-22 00:47:26,859 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) [2022-07-22 00:47:26,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1342 transitions. [2022-07-22 00:47:26,862 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1342 transitions. Word has length 57 [2022-07-22 00:47:26,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:47:26,862 INFO L495 AbstractCegarLoop]: Abstraction has 959 states and 1342 transitions. [2022-07-22 00:47:26,862 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) [2022-07-22 00:47:26,862 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1342 transitions. [2022-07-22 00:47:26,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-22 00:47:26,864 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:47:26,864 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] [2022-07-22 00:47:26,887 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-07-22 00:47:27,080 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 [2022-07-22 00:47:27,080 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:47:27,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:47:27,081 INFO L85 PathProgramCache]: Analyzing trace with hash -2059170591, now seen corresponding path program 1 times [2022-07-22 00:47:27,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:47:27,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417813562] [2022-07-22 00:47:27,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:27,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:47:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:27,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 00:47:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:27,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 00:47:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:27,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-22 00:47:27,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 00:47:27,181 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-22 00:47:27,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 00:47:27,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417813562] [2022-07-22 00:47:27,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417813562] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 00:47:27,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 00:47:27,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-22 00:47:27,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350754548] [2022-07-22 00:47:27,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 00:47:27,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 00:47:27,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 00:47:27,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 00:47:27,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-22 00:47:27,183 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) [2022-07-22 00:47:27,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 00:47:27,766 INFO L93 Difference]: Finished difference Result 1256 states and 1731 transitions. [2022-07-22 00:47:27,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 00:47:27,767 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 [2022-07-22 00:47:27,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 00:47:27,775 INFO L225 Difference]: With dead ends: 1256 [2022-07-22 00:47:27,775 INFO L226 Difference]: Without dead ends: 914 [2022-07-22 00:47:27,777 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 [2022-07-22 00:47:27,778 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 [2022-07-22 00:47:27,778 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] [2022-07-22 00:47:27,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2022-07-22 00:47:27,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 835. [2022-07-22 00:47:27,841 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) [2022-07-22 00:47:27,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1157 transitions. [2022-07-22 00:47:27,843 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1157 transitions. Word has length 57 [2022-07-22 00:47:27,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 00:47:27,844 INFO L495 AbstractCegarLoop]: Abstraction has 835 states and 1157 transitions. [2022-07-22 00:47:27,844 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) [2022-07-22 00:47:27,844 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1157 transitions. [2022-07-22 00:47:27,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-22 00:47:27,846 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 00:47:27,846 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] [2022-07-22 00:47:27,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-22 00:47:27,846 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-22 00:47:27,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 00:47:27,847 INFO L85 PathProgramCache]: Analyzing trace with hash 891468222, now seen corresponding path program 1 times [2022-07-22 00:47:27,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 00:47:27,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868808104] [2022-07-22 00:47:27,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 00:47:27,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 00:47:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 00:47:27,868 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 00:47:27,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 00:47:27,904 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 00:47:27,905 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-22 00:47:27,906 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-07-22 00:47:27,907 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-07-22 00:47:27,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-07-22 00:47:27,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-07-22 00:47:27,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-07-22 00:47:27,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-07-22 00:47:27,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-07-22 00:47:27,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-07-22 00:47:27,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2022-07-22 00:47:27,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2022-07-22 00:47:27,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 20 remaining) [2022-07-22 00:47:27,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 20 remaining) [2022-07-22 00:47:27,909 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-07-22 00:47:27,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-07-22 00:47:27,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-07-22 00:47:27,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-07-22 00:47:27,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-07-22 00:47:27,910 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-07-22 00:47:27,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-07-22 00:47:27,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-07-22 00:47:27,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-22 00:47:27,914 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] [2022-07-22 00:47:27,918 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 00:47:27,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 12:47:27 BoogieIcfgContainer [2022-07-22 00:47:27,984 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 00:47:27,984 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 00:47:27,985 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 00:47:27,985 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 00:47:27,985 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 12:46:45" (3/4) ... [2022-07-22 00:47:27,988 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 00:47:27,988 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 00:47:27,988 INFO L158 Benchmark]: Toolchain (without parser) took 43860.74ms. Allocated memory was 56.6MB in the beginning and 157.3MB in the end (delta: 100.7MB). Free memory was 35.1MB in the beginning and 52.6MB in the end (delta: -17.4MB). Peak memory consumption was 83.3MB. Max. memory is 16.1GB. [2022-07-22 00:47:27,989 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 38.9MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 00:47:27,990 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.95ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 37.9MB in the end (delta: -2.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-22 00:47:27,992 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.00ms. Allocated memory is still 56.6MB. Free memory was 37.7MB in the beginning and 36.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 00:47:27,992 INFO L158 Benchmark]: Boogie Preprocessor took 53.13ms. Allocated memory is still 56.6MB. Free memory was 36.1MB in the beginning and 34.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 00:47:27,996 INFO L158 Benchmark]: RCFGBuilder took 592.18ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 34.4MB in the beginning and 45.5MB in the end (delta: -11.1MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2022-07-22 00:47:27,996 INFO L158 Benchmark]: TraceAbstraction took 42829.71ms. Allocated memory was 71.3MB in the beginning and 157.3MB in the end (delta: 86.0MB). Free memory was 44.9MB in the beginning and 53.6MB in the end (delta: -8.7MB). Peak memory consumption was 76.4MB. Max. memory is 16.1GB. [2022-07-22 00:47:27,996 INFO L158 Benchmark]: Witness Printer took 3.43ms. Allocated memory is still 157.3MB. Free memory was 53.6MB in the beginning and 52.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 00:47:27,999 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 38.9MB in the end (delta: 81.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.95ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 37.9MB in the end (delta: -2.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.00ms. Allocated memory is still 56.6MB. Free memory was 37.7MB in the beginning and 36.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.13ms. Allocated memory is still 56.6MB. Free memory was 36.1MB in the beginning and 34.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 592.18ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 34.4MB in the beginning and 45.5MB in the end (delta: -11.1MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * TraceAbstraction took 42829.71ms. Allocated memory was 71.3MB in the beginning and 157.3MB in the end (delta: 86.0MB). Free memory was 44.9MB in the beginning and 53.6MB in the end (delta: -8.7MB). Peak memory consumption was 76.4MB. Max. memory is 16.1GB. * Witness Printer took 3.43ms. Allocated memory is still 157.3MB. Free memory was 53.6MB in the beginning and 52.6MB 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: 42.7s, OverallIterations: 33, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 30.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14820 SdHoareTripleChecker+Valid, 22.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14707 mSDsluCounter, 17148 SdHoareTripleChecker+Invalid, 18.7s 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, 6.7s 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, 4.9s 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 [2022-07-22 00:47:28,021 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