./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark03_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark03_linear.i -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 36118893e72f01ac34f08ae30ac9eb83d0074096398f7228653cb15beb7a3f4b --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 13:35:07,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 13:35:07,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 13:35:07,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 13:35:07,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 13:35:07,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 13:35:07,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 13:35:07,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 13:35:07,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 13:35:07,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 13:35:07,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 13:35:07,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 13:35:07,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 13:35:07,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 13:35:07,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 13:35:07,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 13:35:07,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 13:35:07,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 13:35:07,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 13:35:07,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 13:35:07,066 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 13:35:07,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 13:35:07,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 13:35:07,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 13:35:07,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 13:35:07,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 13:35:07,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 13:35:07,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 13:35:07,076 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 13:35:07,076 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 13:35:07,077 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 13:35:07,077 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 13:35:07,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 13:35:07,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 13:35:07,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 13:35:07,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 13:35:07,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 13:35:07,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 13:35:07,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 13:35:07,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 13:35:07,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 13:35:07,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 13:35:07,083 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-23 13:35:07,111 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 13:35:07,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 13:35:07,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 13:35:07,113 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 13:35:07,113 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 13:35:07,113 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 13:35:07,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 13:35:07,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 13:35:07,114 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 13:35:07,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 13:35:07,115 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 13:35:07,115 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 13:35:07,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 13:35:07,115 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 13:35:07,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 13:35:07,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 13:35:07,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 13:35:07,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 13:35:07,116 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-23 13:35:07,117 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 13:35:07,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 13:35:07,117 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 13:35:07,118 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 13:35:07,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 13:35:07,118 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 13:35:07,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 13:35:07,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:35:07,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 13:35:07,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 13:35:07,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 13:35:07,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 13:35:07,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 13:35:07,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 13:35:07,119 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36118893e72f01ac34f08ae30ac9eb83d0074096398f7228653cb15beb7a3f4b [2022-07-23 13:35:07,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 13:35:07,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 13:35:07,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 13:35:07,332 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 13:35:07,333 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 13:35:07,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark03_linear.i [2022-07-23 13:35:07,378 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd6ff42ff/431ad7e22efe42e0b3009159d6c67e71/FLAGe842efc0b [2022-07-23 13:35:07,672 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 13:35:07,673 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark03_linear.i [2022-07-23 13:35:07,677 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd6ff42ff/431ad7e22efe42e0b3009159d6c67e71/FLAGe842efc0b [2022-07-23 13:35:08,104 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd6ff42ff/431ad7e22efe42e0b3009159d6c67e71 [2022-07-23 13:35:08,106 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 13:35:08,107 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 13:35:08,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 13:35:08,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 13:35:08,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 13:35:08,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:35:08" (1/1) ... [2022-07-23 13:35:08,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d1d9725 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:35:08, skipping insertion in model container [2022-07-23 13:35:08,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:35:08" (1/1) ... [2022-07-23 13:35:08,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 13:35:08,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 13:35:08,253 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/loop-zilu/benchmark03_linear.i[868,881] [2022-07-23 13:35:08,262 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:35:08,268 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 13:35:08,279 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/loop-zilu/benchmark03_linear.i[868,881] [2022-07-23 13:35:08,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:35:08,299 INFO L208 MainTranslator]: Completed translation [2022-07-23 13:35:08,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:35:08 WrapperNode [2022-07-23 13:35:08,299 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 13:35:08,300 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 13:35:08,300 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 13:35:08,301 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 13:35:08,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:35:08" (1/1) ... [2022-07-23 13:35:08,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:35:08" (1/1) ... [2022-07-23 13:35:08,324 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2022-07-23 13:35:08,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 13:35:08,324 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 13:35:08,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 13:35:08,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 13:35:08,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:35:08" (1/1) ... [2022-07-23 13:35:08,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:35:08" (1/1) ... [2022-07-23 13:35:08,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:35:08" (1/1) ... [2022-07-23 13:35:08,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:35:08" (1/1) ... [2022-07-23 13:35:08,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:35:08" (1/1) ... [2022-07-23 13:35:08,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:35:08" (1/1) ... [2022-07-23 13:35:08,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:35:08" (1/1) ... [2022-07-23 13:35:08,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 13:35:08,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 13:35:08,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 13:35:08,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 13:35:08,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:35:08" (1/1) ... [2022-07-23 13:35:08,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:35:08,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:35:08,373 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-23 13:35:08,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-23 13:35:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 13:35:08,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 13:35:08,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 13:35:08,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 13:35:08,439 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 13:35:08,440 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 13:35:08,580 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 13:35:08,593 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 13:35:08,593 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 13:35:08,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:35:08 BoogieIcfgContainer [2022-07-23 13:35:08,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 13:35:08,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 13:35:08,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 13:35:08,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 13:35:08,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:35:08" (1/3) ... [2022-07-23 13:35:08,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c59c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:35:08, skipping insertion in model container [2022-07-23 13:35:08,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:35:08" (2/3) ... [2022-07-23 13:35:08,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c59c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:35:08, skipping insertion in model container [2022-07-23 13:35:08,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:35:08" (3/3) ... [2022-07-23 13:35:08,614 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark03_linear.i [2022-07-23 13:35:08,623 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 13:35:08,623 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-07-23 13:35:08,677 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 13:35:08,685 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@a3f1255, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3531a062 [2022-07-23 13:35:08,686 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-07-23 13:35:08,696 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 20 states have (on average 1.75) internal successors, (35), 30 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:08,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-23 13:35:08,700 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:08,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-23 13:35:08,702 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:08,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:08,707 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2022-07-23 13:35:08,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:08,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365852876] [2022-07-23 13:35:08,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:08,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:08,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:08,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:08,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365852876] [2022-07-23 13:35:08,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365852876] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:35:08,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:35:08,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:35:08,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531535328] [2022-07-23 13:35:08,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:35:08,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:35:08,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:08,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:35:08,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:35:08,893 INFO L87 Difference]: Start difference. First operand has 31 states, 20 states have (on average 1.75) internal successors, (35), 30 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:08,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:08,928 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-07-23 13:35:08,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:35:08,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-07-23 13:35:08,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:08,935 INFO L225 Difference]: With dead ends: 48 [2022-07-23 13:35:08,935 INFO L226 Difference]: Without dead ends: 28 [2022-07-23 13:35:08,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:35:08,939 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 10 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:08,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 81 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:35:08,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-07-23 13:35:08,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-07-23 13:35:08,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 27 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:08,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2022-07-23 13:35:08,960 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 5 [2022-07-23 13:35:08,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:08,961 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2022-07-23 13:35:08,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:08,961 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2022-07-23 13:35:08,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-23 13:35:08,962 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:08,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:08,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 13:35:08,962 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:08,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:08,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2022-07-23 13:35:08,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:08,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32452164] [2022-07-23 13:35:08,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:08,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:08,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:08,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:08,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32452164] [2022-07-23 13:35:08,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32452164] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:35:08,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:35:08,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:35:08,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43691827] [2022-07-23 13:35:08,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:35:08,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:35:08,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:08,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:35:08,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:35:08,992 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:09,015 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2022-07-23 13:35:09,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:35:09,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-23 13:35:09,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:09,024 INFO L225 Difference]: With dead ends: 32 [2022-07-23 13:35:09,024 INFO L226 Difference]: Without dead ends: 30 [2022-07-23 13:35:09,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:35:09,025 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 3 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:09,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 61 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:35:09,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-07-23 13:35:09,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-07-23 13:35:09,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.55) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2022-07-23 13:35:09,029 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 7 [2022-07-23 13:35:09,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:09,029 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2022-07-23 13:35:09,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,030 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-07-23 13:35:09,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-23 13:35:09,030 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:09,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:09,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 13:35:09,031 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:09,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:09,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1387005865, now seen corresponding path program 1 times [2022-07-23 13:35:09,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:09,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901659277] [2022-07-23 13:35:09,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:09,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:09,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:09,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:09,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901659277] [2022-07-23 13:35:09,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901659277] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:35:09,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:35:09,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 13:35:09,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45999031] [2022-07-23 13:35:09,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:35:09,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 13:35:09,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:09,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 13:35:09,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:35:09,084 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:09,133 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2022-07-23 13:35:09,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:35:09,140 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-23 13:35:09,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:09,141 INFO L225 Difference]: With dead ends: 33 [2022-07-23 13:35:09,141 INFO L226 Difference]: Without dead ends: 32 [2022-07-23 13:35:09,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:35:09,155 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:09,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 73 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:35:09,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-07-23 13:35:09,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2022-07-23 13:35:09,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 30 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2022-07-23 13:35:09,168 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 9 [2022-07-23 13:35:09,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:09,169 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2022-07-23 13:35:09,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,169 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2022-07-23 13:35:09,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-23 13:35:09,169 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:09,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:09,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 13:35:09,170 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:09,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:09,170 INFO L85 PathProgramCache]: Analyzing trace with hash 47508913, now seen corresponding path program 1 times [2022-07-23 13:35:09,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:09,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336951916] [2022-07-23 13:35:09,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:09,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:09,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:09,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:09,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336951916] [2022-07-23 13:35:09,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336951916] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:35:09,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:35:09,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 13:35:09,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068962708] [2022-07-23 13:35:09,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:35:09,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 13:35:09,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:09,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 13:35:09,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:35:09,243 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:09,299 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2022-07-23 13:35:09,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:35:09,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-23 13:35:09,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:09,300 INFO L225 Difference]: With dead ends: 33 [2022-07-23 13:35:09,300 INFO L226 Difference]: Without dead ends: 32 [2022-07-23 13:35:09,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:35:09,301 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 3 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:09,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 89 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:35:09,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-07-23 13:35:09,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-07-23 13:35:09,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.5) internal successors, (33), 31 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2022-07-23 13:35:09,305 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 10 [2022-07-23 13:35:09,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:09,305 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2022-07-23 13:35:09,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,305 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2022-07-23 13:35:09,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-23 13:35:09,306 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:09,306 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:09,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 13:35:09,306 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:09,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:09,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1472776363, now seen corresponding path program 1 times [2022-07-23 13:35:09,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:09,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669011105] [2022-07-23 13:35:09,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:09,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:09,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:09,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:09,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669011105] [2022-07-23 13:35:09,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669011105] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:35:09,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:35:09,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 13:35:09,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499393462] [2022-07-23 13:35:09,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:35:09,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 13:35:09,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:09,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 13:35:09,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:35:09,381 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:09,414 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-07-23 13:35:09,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:35:09,414 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-23 13:35:09,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:09,415 INFO L225 Difference]: With dead ends: 35 [2022-07-23 13:35:09,415 INFO L226 Difference]: Without dead ends: 34 [2022-07-23 13:35:09,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:35:09,418 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 13 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:09,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 63 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:35:09,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-07-23 13:35:09,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2022-07-23 13:35:09,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 32 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2022-07-23 13:35:09,421 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 11 [2022-07-23 13:35:09,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:09,421 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2022-07-23 13:35:09,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,422 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2022-07-23 13:35:09,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-23 13:35:09,422 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:09,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:09,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-23 13:35:09,423 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:09,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:09,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1588572941, now seen corresponding path program 1 times [2022-07-23 13:35:09,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:09,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612612835] [2022-07-23 13:35:09,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:09,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:09,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:09,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:09,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:09,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612612835] [2022-07-23 13:35:09,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612612835] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:35:09,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:35:09,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 13:35:09,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970310326] [2022-07-23 13:35:09,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:35:09,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 13:35:09,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:09,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 13:35:09,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:35:09,491 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:09,524 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2022-07-23 13:35:09,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:35:09,525 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-23 13:35:09,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:09,525 INFO L225 Difference]: With dead ends: 35 [2022-07-23 13:35:09,525 INFO L226 Difference]: Without dead ends: 34 [2022-07-23 13:35:09,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:35:09,526 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 5 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:09,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 77 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:35:09,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-07-23 13:35:09,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-07-23 13:35:09,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 33 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2022-07-23 13:35:09,535 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 12 [2022-07-23 13:35:09,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:09,535 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2022-07-23 13:35:09,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,536 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-07-23 13:35:09,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-23 13:35:09,536 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:09,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:09,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-23 13:35:09,536 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:09,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:09,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1905204139, now seen corresponding path program 1 times [2022-07-23 13:35:09,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:09,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122186815] [2022-07-23 13:35:09,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:09,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:09,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:09,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:09,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:09,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122186815] [2022-07-23 13:35:09,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122186815] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:35:09,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:35:09,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 13:35:09,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352591865] [2022-07-23 13:35:09,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:35:09,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 13:35:09,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:09,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 13:35:09,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:35:09,606 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:09,659 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2022-07-23 13:35:09,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 13:35:09,661 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-23 13:35:09,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:09,663 INFO L225 Difference]: With dead ends: 55 [2022-07-23 13:35:09,663 INFO L226 Difference]: Without dead ends: 54 [2022-07-23 13:35:09,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-23 13:35:09,665 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 35 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:09,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 72 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:35:09,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-07-23 13:35:09,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 36. [2022-07-23 13:35:09,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 35 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2022-07-23 13:35:09,674 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 14 [2022-07-23 13:35:09,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:09,674 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2022-07-23 13:35:09,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,675 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2022-07-23 13:35:09,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-23 13:35:09,675 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:09,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:09,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-23 13:35:09,676 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:09,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:09,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1068213904, now seen corresponding path program 1 times [2022-07-23 13:35:09,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:09,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103224050] [2022-07-23 13:35:09,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:09,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:09,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:09,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:09,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:09,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103224050] [2022-07-23 13:35:09,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103224050] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:35:09,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:35:09,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 13:35:09,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150427311] [2022-07-23 13:35:09,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:35:09,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 13:35:09,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:09,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 13:35:09,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:35:09,756 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:09,809 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2022-07-23 13:35:09,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 13:35:09,810 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-23 13:35:09,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:09,810 INFO L225 Difference]: With dead ends: 55 [2022-07-23 13:35:09,810 INFO L226 Difference]: Without dead ends: 54 [2022-07-23 13:35:09,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-23 13:35:09,811 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 22 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:09,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 102 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:35:09,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-07-23 13:35:09,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 37. [2022-07-23 13:35:09,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 36 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-07-23 13:35:09,815 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 15 [2022-07-23 13:35:09,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:09,815 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-07-23 13:35:09,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:09,815 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-07-23 13:35:09,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-23 13:35:09,816 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:09,816 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:09,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-23 13:35:09,816 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:09,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:09,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1068218998, now seen corresponding path program 1 times [2022-07-23 13:35:09,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:09,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896608793] [2022-07-23 13:35:09,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:09,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:09,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:09,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:09,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896608793] [2022-07-23 13:35:09,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896608793] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:35:09,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824756184] [2022-07-23 13:35:09,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:09,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:09,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:35:09,863 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:35:09,864 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 13:35:09,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:09,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 13:35:09,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:35:09,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:09,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:35:09,999 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:09,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824756184] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:35:09,999 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:35:09,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-07-23 13:35:10,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425894937] [2022-07-23 13:35:10,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:35:10,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-23 13:35:10,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:10,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 13:35:10,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-07-23 13:35:10,001 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:10,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:10,116 INFO L93 Difference]: Finished difference Result 84 states and 90 transitions. [2022-07-23 13:35:10,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-23 13:35:10,117 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-23 13:35:10,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:10,117 INFO L225 Difference]: With dead ends: 84 [2022-07-23 13:35:10,118 INFO L226 Difference]: Without dead ends: 83 [2022-07-23 13:35:10,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-07-23 13:35:10,119 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 89 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:10,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 109 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:35:10,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-07-23 13:35:10,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 63. [2022-07-23 13:35:10,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 53 states have (on average 1.6037735849056605) internal successors, (85), 62 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:10,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 85 transitions. [2022-07-23 13:35:10,128 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 85 transitions. Word has length 15 [2022-07-23 13:35:10,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:10,128 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 85 transitions. [2022-07-23 13:35:10,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:10,129 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 85 transitions. [2022-07-23 13:35:10,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-23 13:35:10,129 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:10,129 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:10,150 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-23 13:35:10,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:10,344 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:10,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:10,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1244949380, now seen corresponding path program 1 times [2022-07-23 13:35:10,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:10,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309215390] [2022-07-23 13:35:10,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:10,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:10,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:10,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:10,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309215390] [2022-07-23 13:35:10,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309215390] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:35:10,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059833990] [2022-07-23 13:35:10,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:10,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:10,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:35:10,407 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:35:10,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-23 13:35:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:10,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 13:35:10,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:35:10,491 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:10,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:35:10,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059833990] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:35:10,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:35:10,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-07-23 13:35:10,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540898833] [2022-07-23 13:35:10,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:35:10,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 13:35:10,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:10,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 13:35:10,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-23 13:35:10,493 INFO L87 Difference]: Start difference. First operand 63 states and 85 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:10,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:10,519 INFO L93 Difference]: Finished difference Result 63 states and 85 transitions. [2022-07-23 13:35:10,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:35:10,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-07-23 13:35:10,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:10,520 INFO L225 Difference]: With dead ends: 63 [2022-07-23 13:35:10,520 INFO L226 Difference]: Without dead ends: 62 [2022-07-23 13:35:10,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 13:35:10,521 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 36 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:10,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 51 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:35:10,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-07-23 13:35:10,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-07-23 13:35:10,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 53 states have (on average 1.5471698113207548) internal successors, (82), 61 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:10,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 82 transitions. [2022-07-23 13:35:10,535 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 82 transitions. Word has length 16 [2022-07-23 13:35:10,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:10,535 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 82 transitions. [2022-07-23 13:35:10,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:10,535 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2022-07-23 13:35:10,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-23 13:35:10,536 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:10,536 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:10,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-23 13:35:10,751 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,SelfDestructingSolverStorable9 [2022-07-23 13:35:10,751 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:10,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:10,752 INFO L85 PathProgramCache]: Analyzing trace with hash 61274936, now seen corresponding path program 1 times [2022-07-23 13:35:10,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:10,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845366078] [2022-07-23 13:35:10,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:10,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:10,786 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:10,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:10,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845366078] [2022-07-23 13:35:10,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845366078] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:35:10,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556720147] [2022-07-23 13:35:10,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:10,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:10,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:35:10,789 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:35:10,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-23 13:35:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:10,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 13:35:10,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:35:10,848 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:10,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:35:10,888 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:10,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556720147] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:35:10,889 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:35:10,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-07-23 13:35:10,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380823248] [2022-07-23 13:35:10,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:35:10,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-23 13:35:10,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:10,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 13:35:10,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-07-23 13:35:10,890 INFO L87 Difference]: Start difference. First operand 62 states and 82 transitions. Second operand has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:10,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:10,985 INFO L93 Difference]: Finished difference Result 81 states and 87 transitions. [2022-07-23 13:35:10,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-23 13:35:10,985 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-23 13:35:10,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:10,986 INFO L225 Difference]: With dead ends: 81 [2022-07-23 13:35:10,986 INFO L226 Difference]: Without dead ends: 80 [2022-07-23 13:35:10,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-07-23 13:35:10,987 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 76 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:10,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 141 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:35:10,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-07-23 13:35:10,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 64. [2022-07-23 13:35:10,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 55 states have (on average 1.490909090909091) internal successors, (82), 63 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:10,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 82 transitions. [2022-07-23 13:35:10,996 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 82 transitions. Word has length 17 [2022-07-23 13:35:10,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:10,997 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 82 transitions. [2022-07-23 13:35:10,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:10,998 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2022-07-23 13:35:10,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-23 13:35:10,998 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:10,998 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:11,017 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-23 13:35:11,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:11,217 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:11,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:11,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1899523070, now seen corresponding path program 1 times [2022-07-23 13:35:11,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:11,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455314910] [2022-07-23 13:35:11,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:11,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:11,262 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:11,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:11,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455314910] [2022-07-23 13:35:11,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455314910] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:35:11,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714428230] [2022-07-23 13:35:11,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:11,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:11,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:35:11,265 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:35:11,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-23 13:35:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:11,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 13:35:11,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:35:11,322 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:11,323 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:35:11,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714428230] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:35:11,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:35:11,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-07-23 13:35:11,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998199551] [2022-07-23 13:35:11,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:35:11,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 13:35:11,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:11,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 13:35:11,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-23 13:35:11,332 INFO L87 Difference]: Start difference. First operand 64 states and 82 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:11,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:11,357 INFO L93 Difference]: Finished difference Result 64 states and 82 transitions. [2022-07-23 13:35:11,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:35:11,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-23 13:35:11,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:11,358 INFO L225 Difference]: With dead ends: 64 [2022-07-23 13:35:11,358 INFO L226 Difference]: Without dead ends: 63 [2022-07-23 13:35:11,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-23 13:35:11,359 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 32 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:11,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 56 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:35:11,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-07-23 13:35:11,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-07-23 13:35:11,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 62 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:11,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 79 transitions. [2022-07-23 13:35:11,371 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 79 transitions. Word has length 18 [2022-07-23 13:35:11,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:11,371 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 79 transitions. [2022-07-23 13:35:11,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:11,372 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 79 transitions. [2022-07-23 13:35:11,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-23 13:35:11,373 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:11,373 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:11,389 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-23 13:35:11,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:11,579 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:11,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:11,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1244326918, now seen corresponding path program 1 times [2022-07-23 13:35:11,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:11,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483351742] [2022-07-23 13:35:11,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:11,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:11,626 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:11,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:11,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483351742] [2022-07-23 13:35:11,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483351742] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:35:11,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045825429] [2022-07-23 13:35:11,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:11,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:11,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:35:11,628 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:35:11,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-23 13:35:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:11,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-23 13:35:11,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:35:11,746 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:11,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:35:11,878 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:11,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045825429] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:35:11,879 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:35:11,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2022-07-23 13:35:11,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406858138] [2022-07-23 13:35:11,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:35:11,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-23 13:35:11,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:11,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-23 13:35:11,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2022-07-23 13:35:11,880 INFO L87 Difference]: Start difference. First operand 63 states and 79 transitions. Second operand has 23 states, 22 states have (on average 2.5) internal successors, (55), 23 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:12,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:12,035 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2022-07-23 13:35:12,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-23 13:35:12,035 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.5) internal successors, (55), 23 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-23 13:35:12,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:12,036 INFO L225 Difference]: With dead ends: 76 [2022-07-23 13:35:12,036 INFO L226 Difference]: Without dead ends: 75 [2022-07-23 13:35:12,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=261, Invalid=795, Unknown=0, NotChecked=0, Total=1056 [2022-07-23 13:35:12,037 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 160 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:12,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 176 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:35:12,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-07-23 13:35:12,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 65. [2022-07-23 13:35:12,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 64 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:12,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 79 transitions. [2022-07-23 13:35:12,040 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 79 transitions. Word has length 19 [2022-07-23 13:35:12,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:12,040 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 79 transitions. [2022-07-23 13:35:12,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.5) internal successors, (55), 23 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:12,041 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 79 transitions. [2022-07-23 13:35:12,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-23 13:35:12,041 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:12,041 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:12,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-23 13:35:12,255 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,SelfDestructingSolverStorable12 [2022-07-23 13:35:12,256 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:12,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:12,256 INFO L85 PathProgramCache]: Analyzing trace with hash 80571264, now seen corresponding path program 1 times [2022-07-23 13:35:12,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:12,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267022145] [2022-07-23 13:35:12,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:12,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:12,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:12,302 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:12,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:12,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267022145] [2022-07-23 13:35:12,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267022145] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:35:12,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [61232160] [2022-07-23 13:35:12,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:12,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:12,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:35:12,304 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:35:12,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-23 13:35:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:12,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-23 13:35:12,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:35:12,440 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:12,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:35:12,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [61232160] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:35:12,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:35:12,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2022-07-23 13:35:12,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47814395] [2022-07-23 13:35:12,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:35:12,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 13:35:12,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:12,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 13:35:12,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-07-23 13:35:12,442 INFO L87 Difference]: Start difference. First operand 65 states and 79 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:12,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:12,505 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2022-07-23 13:35:12,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 13:35:12,505 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-23 13:35:12,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:12,505 INFO L225 Difference]: With dead ends: 65 [2022-07-23 13:35:12,505 INFO L226 Difference]: Without dead ends: 64 [2022-07-23 13:35:12,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2022-07-23 13:35:12,506 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 46 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:12,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 84 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:35:12,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-07-23 13:35:12,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-07-23 13:35:12,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 63 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:12,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 76 transitions. [2022-07-23 13:35:12,509 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 76 transitions. Word has length 20 [2022-07-23 13:35:12,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:12,509 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 76 transitions. [2022-07-23 13:35:12,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:12,509 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 76 transitions. [2022-07-23 13:35:12,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-23 13:35:12,509 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:12,509 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:12,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-23 13:35:12,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:12,722 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:12,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:12,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1797258052, now seen corresponding path program 1 times [2022-07-23 13:35:12,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:12,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840772214] [2022-07-23 13:35:12,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:12,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:12,783 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:12,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:12,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840772214] [2022-07-23 13:35:12,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840772214] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:35:12,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636457401] [2022-07-23 13:35:12,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:12,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:12,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:35:12,785 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:35:12,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-23 13:35:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:12,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-23 13:35:12,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:35:12,906 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:12,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:35:12,992 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:12,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636457401] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:35:12,993 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:35:12,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2022-07-23 13:35:12,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394548947] [2022-07-23 13:35:12,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:35:12,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-23 13:35:12,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:12,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-23 13:35:12,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2022-07-23 13:35:12,995 INFO L87 Difference]: Start difference. First operand 64 states and 76 transitions. Second operand has 23 states, 22 states have (on average 2.772727272727273) internal successors, (61), 23 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:13,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:13,244 INFO L93 Difference]: Finished difference Result 121 states and 138 transitions. [2022-07-23 13:35:13,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-23 13:35:13,244 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.772727272727273) internal successors, (61), 23 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-07-23 13:35:13,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:13,245 INFO L225 Difference]: With dead ends: 121 [2022-07-23 13:35:13,245 INFO L226 Difference]: Without dead ends: 120 [2022-07-23 13:35:13,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=364, Invalid=1118, Unknown=0, NotChecked=0, Total=1482 [2022-07-23 13:35:13,246 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 132 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:13,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 122 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:35:13,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-07-23 13:35:13,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 100. [2022-07-23 13:35:13,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 93 states have (on average 1.2365591397849462) internal successors, (115), 99 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:13,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2022-07-23 13:35:13,249 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 21 [2022-07-23 13:35:13,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:13,250 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2022-07-23 13:35:13,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.772727272727273) internal successors, (61), 23 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:13,250 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2022-07-23 13:35:13,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-23 13:35:13,250 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:13,250 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:13,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-23 13:35:13,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:13,459 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:13,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:13,460 INFO L85 PathProgramCache]: Analyzing trace with hash 119575298, now seen corresponding path program 1 times [2022-07-23 13:35:13,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:13,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630026872] [2022-07-23 13:35:13,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:13,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:13,504 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:13,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:13,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630026872] [2022-07-23 13:35:13,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630026872] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:35:13,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140913219] [2022-07-23 13:35:13,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:13,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:13,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:35:13,506 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:35:13,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-23 13:35:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:13,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-23 13:35:13,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:35:13,633 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:13,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:35:13,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140913219] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:35:13,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:35:13,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2022-07-23 13:35:13,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231383098] [2022-07-23 13:35:13,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:35:13,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 13:35:13,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:13,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 13:35:13,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-07-23 13:35:13,635 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:13,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:13,722 INFO L93 Difference]: Finished difference Result 100 states and 115 transitions. [2022-07-23 13:35:13,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-23 13:35:13,723 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-07-23 13:35:13,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:13,723 INFO L225 Difference]: With dead ends: 100 [2022-07-23 13:35:13,724 INFO L226 Difference]: Without dead ends: 98 [2022-07-23 13:35:13,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2022-07-23 13:35:13,724 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 48 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:13,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 68 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:35:13,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-07-23 13:35:13,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-07-23 13:35:13,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 93 states have (on average 1.1505376344086022) internal successors, (107), 97 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:13,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2022-07-23 13:35:13,728 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 22 [2022-07-23 13:35:13,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:13,728 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2022-07-23 13:35:13,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:13,728 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2022-07-23 13:35:13,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-23 13:35:13,729 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:13,729 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:13,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-23 13:35:13,943 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,SelfDestructingSolverStorable15 [2022-07-23 13:35:13,943 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:13,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:13,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1052253532, now seen corresponding path program 1 times [2022-07-23 13:35:13,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:13,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456035912] [2022-07-23 13:35:13,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:13,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:13,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:13,956 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:13,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:13,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456035912] [2022-07-23 13:35:13,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456035912] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:35:13,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:35:13,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:35:13,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444700354] [2022-07-23 13:35:13,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:35:13,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:35:13,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:13,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:35:13,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:35:13,958 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:13,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:13,964 INFO L93 Difference]: Finished difference Result 157 states and 173 transitions. [2022-07-23 13:35:13,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:35:13,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-07-23 13:35:13,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:13,965 INFO L225 Difference]: With dead ends: 157 [2022-07-23 13:35:13,965 INFO L226 Difference]: Without dead ends: 120 [2022-07-23 13:35:13,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:35:13,967 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 4 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:13,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 49 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:35:13,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-07-23 13:35:13,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 116. [2022-07-23 13:35:13,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 111 states have (on average 1.1441441441441442) internal successors, (127), 115 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:13,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 127 transitions. [2022-07-23 13:35:13,972 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 127 transitions. Word has length 24 [2022-07-23 13:35:13,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:13,972 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 127 transitions. [2022-07-23 13:35:13,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:13,972 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 127 transitions. [2022-07-23 13:35:13,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-23 13:35:13,974 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:13,975 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:13,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-23 13:35:13,975 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:13,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:13,975 INFO L85 PathProgramCache]: Analyzing trace with hash -2046612408, now seen corresponding path program 1 times [2022-07-23 13:35:13,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:13,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140402369] [2022-07-23 13:35:13,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:13,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:14,044 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:14,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:14,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140402369] [2022-07-23 13:35:14,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140402369] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:35:14,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316595307] [2022-07-23 13:35:14,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:14,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:14,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:35:14,046 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:35:14,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-23 13:35:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:14,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-23 13:35:14,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:35:14,178 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:14,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:35:14,291 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:14,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316595307] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:35:14,292 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:35:14,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 27 [2022-07-23 13:35:14,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120143224] [2022-07-23 13:35:14,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:35:14,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-07-23 13:35:14,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:14,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-07-23 13:35:14,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=582, Unknown=0, NotChecked=0, Total=756 [2022-07-23 13:35:14,293 INFO L87 Difference]: Start difference. First operand 116 states and 127 transitions. Second operand has 28 states, 27 states have (on average 2.740740740740741) internal successors, (74), 28 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:14,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:14,492 INFO L93 Difference]: Finished difference Result 141 states and 151 transitions. [2022-07-23 13:35:14,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-23 13:35:14,492 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 2.740740740740741) internal successors, (74), 28 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-07-23 13:35:14,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:14,493 INFO L225 Difference]: With dead ends: 141 [2022-07-23 13:35:14,493 INFO L226 Difference]: Without dead ends: 139 [2022-07-23 13:35:14,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=435, Invalid=1205, Unknown=0, NotChecked=0, Total=1640 [2022-07-23 13:35:14,494 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 267 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:14,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 138 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:35:14,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-07-23 13:35:14,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 106. [2022-07-23 13:35:14,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 101 states have (on average 1.1287128712871286) internal successors, (114), 105 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:14,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 114 transitions. [2022-07-23 13:35:14,498 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 114 transitions. Word has length 26 [2022-07-23 13:35:14,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:14,498 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 114 transitions. [2022-07-23 13:35:14,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.740740740740741) internal successors, (74), 28 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:14,499 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 114 transitions. [2022-07-23 13:35:14,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-23 13:35:14,499 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:14,499 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2022-07-23 13:35:14,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-23 13:35:14,715 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,SelfDestructingSolverStorable17 [2022-07-23 13:35:14,716 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:14,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:14,716 INFO L85 PathProgramCache]: Analyzing trace with hash 259934870, now seen corresponding path program 1 times [2022-07-23 13:35:14,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:14,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726301501] [2022-07-23 13:35:14,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:14,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:14,736 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:35:14,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:14,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726301501] [2022-07-23 13:35:14,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726301501] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:35:14,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:35:14,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:35:14,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990036263] [2022-07-23 13:35:14,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:35:14,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:35:14,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:14,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:35:14,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:35:14,738 INFO L87 Difference]: Start difference. First operand 106 states and 114 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:14,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:14,743 INFO L93 Difference]: Finished difference Result 142 states and 146 transitions. [2022-07-23 13:35:14,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:35:14,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-07-23 13:35:14,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:14,744 INFO L225 Difference]: With dead ends: 142 [2022-07-23 13:35:14,744 INFO L226 Difference]: Without dead ends: 104 [2022-07-23 13:35:14,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:35:14,745 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 5 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:14,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 48 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:35:14,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-07-23 13:35:14,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 100. [2022-07-23 13:35:14,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 95 states have (on average 1.105263157894737) internal successors, (105), 99 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:14,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 105 transitions. [2022-07-23 13:35:14,748 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 105 transitions. Word has length 45 [2022-07-23 13:35:14,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:14,748 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 105 transitions. [2022-07-23 13:35:14,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:14,749 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 105 transitions. [2022-07-23 13:35:14,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-23 13:35:14,749 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:14,749 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-07-23 13:35:14,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-23 13:35:14,750 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:14,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:14,750 INFO L85 PathProgramCache]: Analyzing trace with hash 375204201, now seen corresponding path program 2 times [2022-07-23 13:35:14,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:14,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270497104] [2022-07-23 13:35:14,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:14,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:14,830 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:14,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:14,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270497104] [2022-07-23 13:35:14,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270497104] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:35:14,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058664885] [2022-07-23 13:35:14,831 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:35:14,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:14,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:35:14,832 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:35:14,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-23 13:35:14,890 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-23 13:35:14,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:35:14,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-23 13:35:14,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:35:14,940 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:14,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:35:15,054 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:15,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058664885] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:35:15,055 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:35:15,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-07-23 13:35:15,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343734317] [2022-07-23 13:35:15,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:35:15,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-23 13:35:15,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:15,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-23 13:35:15,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-07-23 13:35:15,056 INFO L87 Difference]: Start difference. First operand 100 states and 105 transitions. Second operand has 24 states, 23 states have (on average 4.086956521739131) internal successors, (94), 24 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:15,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:15,187 INFO L93 Difference]: Finished difference Result 247 states and 278 transitions. [2022-07-23 13:35:15,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-23 13:35:15,187 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.086956521739131) internal successors, (94), 24 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-07-23 13:35:15,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:15,188 INFO L225 Difference]: With dead ends: 247 [2022-07-23 13:35:15,188 INFO L226 Difference]: Without dead ends: 246 [2022-07-23 13:35:15,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2022-07-23 13:35:15,189 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 218 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:15,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 162 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:35:15,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-07-23 13:35:15,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 222. [2022-07-23 13:35:15,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.2165898617511521) internal successors, (264), 221 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:15,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 264 transitions. [2022-07-23 13:35:15,195 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 264 transitions. Word has length 45 [2022-07-23 13:35:15,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:15,195 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 264 transitions. [2022-07-23 13:35:15,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.086956521739131) internal successors, (94), 24 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:15,195 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 264 transitions. [2022-07-23 13:35:15,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-23 13:35:15,196 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:15,196 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2022-07-23 13:35:15,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-23 13:35:15,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:15,407 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:15,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:15,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1697772786, now seen corresponding path program 1 times [2022-07-23 13:35:15,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:15,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458358648] [2022-07-23 13:35:15,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:15,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:15,527 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:15,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:15,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458358648] [2022-07-23 13:35:15,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458358648] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:35:15,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30689751] [2022-07-23 13:35:15,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:15,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:15,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:35:15,529 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:35:15,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-23 13:35:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:15,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-23 13:35:15,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:35:15,835 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:15,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:35:16,150 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:16,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30689751] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:35:16,151 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:35:16,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 49 [2022-07-23 13:35:16,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139538868] [2022-07-23 13:35:16,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:35:16,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-07-23 13:35:16,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:16,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-07-23 13:35:16,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=1987, Unknown=0, NotChecked=0, Total=2450 [2022-07-23 13:35:16,152 INFO L87 Difference]: Start difference. First operand 222 states and 264 transitions. Second operand has 50 states, 49 states have (on average 2.836734693877551) internal successors, (139), 50 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:17,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:17,152 INFO L93 Difference]: Finished difference Result 237 states and 264 transitions. [2022-07-23 13:35:17,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-07-23 13:35:17,152 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 2.836734693877551) internal successors, (139), 50 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-07-23 13:35:17,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:17,154 INFO L225 Difference]: With dead ends: 237 [2022-07-23 13:35:17,154 INFO L226 Difference]: Without dead ends: 236 [2022-07-23 13:35:17,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2288 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1486, Invalid=5320, Unknown=0, NotChecked=0, Total=6806 [2022-07-23 13:35:17,156 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 628 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:17,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 238 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 13:35:17,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-07-23 13:35:17,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 222. [2022-07-23 13:35:17,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.1797235023041475) internal successors, (256), 221 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:17,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 256 transitions. [2022-07-23 13:35:17,162 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 256 transitions. Word has length 47 [2022-07-23 13:35:17,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:17,162 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 256 transitions. [2022-07-23 13:35:17,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 2.836734693877551) internal successors, (139), 50 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:17,163 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 256 transitions. [2022-07-23 13:35:17,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-23 13:35:17,163 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:17,163 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-07-23 13:35:17,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-23 13:35:17,375 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,SelfDestructingSolverStorable20 [2022-07-23 13:35:17,375 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:17,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:17,376 INFO L85 PathProgramCache]: Analyzing trace with hash -206014101, now seen corresponding path program 2 times [2022-07-23 13:35:17,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:17,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23293780] [2022-07-23 13:35:17,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:17,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:17,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:17,441 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:17,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:17,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23293780] [2022-07-23 13:35:17,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23293780] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:35:17,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971474725] [2022-07-23 13:35:17,441 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:35:17,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:17,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:35:17,443 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:35:17,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-23 13:35:17,478 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-23 13:35:17,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:35:17,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-23 13:35:17,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:35:17,538 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:17,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:35:17,666 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:17,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971474725] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:35:17,667 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:35:17,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-07-23 13:35:17,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56379933] [2022-07-23 13:35:17,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:35:17,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-23 13:35:17,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:17,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-23 13:35:17,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-07-23 13:35:17,669 INFO L87 Difference]: Start difference. First operand 222 states and 256 transitions. Second operand has 24 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 24 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:17,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:17,816 INFO L93 Difference]: Finished difference Result 242 states and 264 transitions. [2022-07-23 13:35:17,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-23 13:35:17,818 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 24 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-07-23 13:35:17,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:17,819 INFO L225 Difference]: With dead ends: 242 [2022-07-23 13:35:17,819 INFO L226 Difference]: Without dead ends: 241 [2022-07-23 13:35:17,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2022-07-23 13:35:17,821 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 210 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:17,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 182 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:35:17,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-07-23 13:35:17,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 226. [2022-07-23 13:35:17,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.1312217194570136) internal successors, (250), 225 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:17,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 250 transitions. [2022-07-23 13:35:17,827 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 250 transitions. Word has length 47 [2022-07-23 13:35:17,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:17,827 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 250 transitions. [2022-07-23 13:35:17,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 24 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:17,828 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 250 transitions. [2022-07-23 13:35:17,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-23 13:35:17,828 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:17,828 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-07-23 13:35:17,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-23 13:35:18,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-23 13:35:18,044 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:18,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:18,044 INFO L85 PathProgramCache]: Analyzing trace with hash -411053715, now seen corresponding path program 2 times [2022-07-23 13:35:18,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:18,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197733791] [2022-07-23 13:35:18,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:18,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:18,161 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:18,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:18,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197733791] [2022-07-23 13:35:18,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197733791] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:35:18,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941884607] [2022-07-23 13:35:18,162 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:35:18,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:18,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:35:18,163 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:35:18,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-23 13:35:18,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-23 13:35:18,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:35:18,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-23 13:35:18,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:35:18,471 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:18,471 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:35:33,735 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:33,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941884607] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:35:33,735 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:35:33,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 49 [2022-07-23 13:35:33,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623918087] [2022-07-23 13:35:33,736 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:35:33,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-07-23 13:35:33,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:33,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-07-23 13:35:33,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=421, Invalid=2021, Unknown=8, NotChecked=0, Total=2450 [2022-07-23 13:35:33,737 INFO L87 Difference]: Start difference. First operand 226 states and 250 transitions. Second operand has 50 states, 49 states have (on average 2.9591836734693877) internal successors, (145), 50 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:34,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:34,327 INFO L93 Difference]: Finished difference Result 233 states and 250 transitions. [2022-07-23 13:35:34,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-23 13:35:34,327 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 2.9591836734693877) internal successors, (145), 50 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-07-23 13:35:34,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:34,328 INFO L225 Difference]: With dead ends: 233 [2022-07-23 13:35:34,328 INFO L226 Difference]: Without dead ends: 232 [2022-07-23 13:35:34,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1551 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=887, Invalid=3527, Unknown=8, NotChecked=0, Total=4422 [2022-07-23 13:35:34,332 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 568 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:34,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 366 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 199 Invalid, 0 Unknown, 49 Unchecked, 0.1s Time] [2022-07-23 13:35:34,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-07-23 13:35:34,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 226. [2022-07-23 13:35:34,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.085972850678733) internal successors, (240), 225 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:34,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 240 transitions. [2022-07-23 13:35:34,338 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 240 transitions. Word has length 49 [2022-07-23 13:35:34,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:34,338 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 240 transitions. [2022-07-23 13:35:34,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 2.9591836734693877) internal successors, (145), 50 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:34,338 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 240 transitions. [2022-07-23 13:35:34,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-23 13:35:34,338 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:34,338 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1] [2022-07-23 13:35:34,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-23 13:35:34,539 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,SelfDestructingSolverStorable22 [2022-07-23 13:35:34,539 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:34,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:34,539 INFO L85 PathProgramCache]: Analyzing trace with hash 814251694, now seen corresponding path program 2 times [2022-07-23 13:35:34,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:34,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799244285] [2022-07-23 13:35:34,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:34,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:34,694 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:34,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:34,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799244285] [2022-07-23 13:35:34,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799244285] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:35:34,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176602182] [2022-07-23 13:35:34,695 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:35:34,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:34,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:35:34,696 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:35:34,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-23 13:35:34,733 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-23 13:35:34,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:35:34,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-23 13:35:34,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:35:35,029 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:35,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:35:35,374 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:35,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176602182] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:35:35,374 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:35:35,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 51 [2022-07-23 13:35:35,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577024899] [2022-07-23 13:35:35,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:35:35,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-07-23 13:35:35,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:35,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-07-23 13:35:35,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=2150, Unknown=0, NotChecked=0, Total=2652 [2022-07-23 13:35:35,376 INFO L87 Difference]: Start difference. First operand 226 states and 240 transitions. Second operand has 52 states, 51 states have (on average 2.8627450980392157) internal successors, (146), 52 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:36,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:36,310 INFO L93 Difference]: Finished difference Result 228 states and 240 transitions. [2022-07-23 13:35:36,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-07-23 13:35:36,310 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 2.8627450980392157) internal successors, (146), 52 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-07-23 13:35:36,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:36,311 INFO L225 Difference]: With dead ends: 228 [2022-07-23 13:35:36,311 INFO L226 Difference]: Without dead ends: 227 [2022-07-23 13:35:36,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2161 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1431, Invalid=4731, Unknown=0, NotChecked=0, Total=6162 [2022-07-23 13:35:36,313 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 586 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:36,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 286 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-23 13:35:36,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-07-23 13:35:36,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 226. [2022-07-23 13:35:36,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.0678733031674208) internal successors, (236), 225 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:36,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 236 transitions. [2022-07-23 13:35:36,325 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 236 transitions. Word has length 50 [2022-07-23 13:35:36,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:36,325 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 236 transitions. [2022-07-23 13:35:36,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 2.8627450980392157) internal successors, (146), 52 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:35:36,325 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 236 transitions. [2022-07-23 13:35:36,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-23 13:35:36,326 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:36,326 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 1, 1, 1, 1] [2022-07-23 13:35:36,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-23 13:35:36,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:36,539 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-23 13:35:36,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:36,540 INFO L85 PathProgramCache]: Analyzing trace with hash -906852813, now seen corresponding path program 2 times [2022-07-23 13:35:36,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:36,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722933594] [2022-07-23 13:35:36,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:36,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:36,840 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:36,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:36,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722933594] [2022-07-23 13:35:36,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722933594] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:35:36,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627518428] [2022-07-23 13:35:36,841 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:35:36,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:36,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:35:36,842 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:35:36,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-23 13:35:36,885 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-23 13:35:36,886 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:35:36,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 29 conjunts are in the unsatisfiable core [2022-07-23 13:35:36,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:35:37,556 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:35:37,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:36:23,778 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:36:23,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627518428] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:36:23,779 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:36:23,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 85 [2022-07-23 13:36:23,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595823638] [2022-07-23 13:36:23,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:36:23,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-07-23 13:36:23,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:36:23,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-07-23 13:36:23,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1094, Invalid=6195, Unknown=21, NotChecked=0, Total=7310 [2022-07-23 13:36:23,782 INFO L87 Difference]: Start difference. First operand 226 states and 236 transitions. Second operand has 86 states, 85 states have (on average 3.1882352941176473) internal successors, (271), 86 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:36:26,619 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse4 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) (.cse1 (* (- 1) |c_ULTIMATE.start_main_~j~0#1|))) (let ((.cse3 (div (+ .cse4 2147483639 .cse1) 2)) (.cse0 (+ |c_ULTIMATE.start_main_~y~0#1| 1))) (and (<= .cse0 (div (+ .cse1 2147483646) 2)) (forall ((|aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| Int)) (let ((.cse2 (* 2 |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63|))) (or (<= (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~j~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| 4) .cse2) 2147483634) (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| 2) (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63|) (<= 2147483637 (+ |c_ULTIMATE.start_main_~j~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| 5) .cse2)) (<= (+ |c_ULTIMATE.start_main_~y~0#1| 1) |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63|)))) (forall ((|aux_div_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_55| Int) (|aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| Int)) (or (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| 2) (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63|) (<= (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~j~0#1| (* |aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| 2) (* 3 |v_ULTIMATE.start_main_~y~0#1_55|) (* 4 |aux_div_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63|)) 2147483615) (< (+ |c_ULTIMATE.start_main_~y~0#1| 2) |v_ULTIMATE.start_main_~y~0#1_55|) (<= |v_ULTIMATE.start_main_~y~0#1_55| (+ 2 |aux_div_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63|)))) (forall ((|v_ULTIMATE.start_main_~y~0#1_55| Int)) (or (< (+ |c_ULTIMATE.start_main_~y~0#1| 1) |v_ULTIMATE.start_main_~y~0#1_55|) (<= |v_ULTIMATE.start_main_~y~0#1_55| (+ (div (+ (- 1) (div (+ (* |v_ULTIMATE.start_main_~y~0#1_55| (- 3)) 2147483620 (* (- 1) |c_ULTIMATE.start_main_~j~0#1|)) 2)) 2) 2)))) (<= |c_ULTIMATE.start_main_~y~0#1| (+ .cse3 1)) (<= |c_ULTIMATE.start_main_~y~0#1| (div (+ (- 1) .cse3) 2)) (<= |c_ULTIMATE.start_main_~y~0#1| (+ 1 (div (+ (div (+ .cse1 2147483634) 2) (- 6) .cse4) 2))) (<= .cse0 (div (+ (div (+ .cse1 2147483637) 2) 2) 2)) (<= (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~j~0#1|) 2147483646)))) is different from false [2022-07-23 13:38:39,727 WARN L233 SmtUtils]: Spent 22.90s on a formula simplification. DAG size of input: 81 DAG size of output: 52 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-23 13:38:41,992 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse7 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) (.cse10 (* (- 1) |c_ULTIMATE.start_main_~j~0#1|))) (let ((.cse1 (div (+ .cse10 2147483646) 2)) (.cse4 (div (+ .cse7 2147483639 .cse10) 2)) (.cse6 (div (+ .cse10 2147483634) 2)) (.cse5 (+ |c_ULTIMATE.start_main_#t~post8#1| 1)) (.cse0 (+ |c_ULTIMATE.start_main_~y~0#1| 1)) (.cse9 (div (+ (div (+ .cse10 2147483637) 2) 2) 2)) (.cse8 (* (- 1) |c_ULTIMATE.start_main_#t~post8#1|))) (and (<= .cse0 .cse1) (forall ((|aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| Int)) (let ((.cse2 (* 2 |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63|))) (or (<= (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~j~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| 4) .cse2) 2147483634) (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| 2) (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63|) (<= 2147483637 (+ |c_ULTIMATE.start_main_~j~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| 5) .cse2)) (<= (+ |c_ULTIMATE.start_main_~y~0#1| 1) |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63|)))) (forall ((|aux_div_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_55| Int) (|aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| Int)) (or (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| 2) (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63|) (<= (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~j~0#1| (* |aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| 2) (* 3 |v_ULTIMATE.start_main_~y~0#1_55|) (* 4 |aux_div_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63|)) 2147483615) (< (+ |c_ULTIMATE.start_main_~y~0#1| 2) |v_ULTIMATE.start_main_~y~0#1_55|) (<= |v_ULTIMATE.start_main_~y~0#1_55| (+ 2 |aux_div_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63|)))) (forall ((|v_ULTIMATE.start_main_~y~0#1_55| Int)) (or (< (+ |c_ULTIMATE.start_main_~y~0#1| 1) |v_ULTIMATE.start_main_~y~0#1_55|) (<= |v_ULTIMATE.start_main_~y~0#1_55| (+ (div (+ (- 1) (div (+ (* |v_ULTIMATE.start_main_~y~0#1_55| (- 3)) 2147483620 (* (- 1) |c_ULTIMATE.start_main_~j~0#1|)) 2)) 2) 2)))) (forall ((|aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| Int)) (let ((.cse3 (* 2 |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63|))) (or (<= (+ |c_ULTIMATE.start_main_#t~post8#1| 1) |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63|) (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| 2) (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63|) (<= (+ |c_ULTIMATE.start_main_#t~post8#1| |c_ULTIMATE.start_main_~j~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| 4) .cse3) 2147483634) (<= 2147483637 (+ |c_ULTIMATE.start_main_~j~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| 5) .cse3))))) (<= |c_ULTIMATE.start_main_~y~0#1| (+ .cse4 1)) (<= .cse5 .cse1) (<= |c_ULTIMATE.start_main_~y~0#1| (div (+ (- 1) .cse4) 2)) (forall ((|v_ULTIMATE.start_main_~y~0#1_55| Int)) (or (<= |v_ULTIMATE.start_main_~y~0#1_55| (+ (div (+ (- 1) (div (+ (* |v_ULTIMATE.start_main_~y~0#1_55| (- 3)) 2147483620 (* (- 1) |c_ULTIMATE.start_main_~j~0#1|)) 2)) 2) 2)) (not (<= |v_ULTIMATE.start_main_~y~0#1_55| (+ |c_ULTIMATE.start_main_#t~post8#1| 1))))) (<= |c_ULTIMATE.start_main_~y~0#1| (+ 1 (div (+ .cse6 (- 6) .cse7) 2))) (<= (+ |c_ULTIMATE.start_main_#t~post8#1| |c_ULTIMATE.start_main_~j~0#1|) 2147483646) (<= |c_ULTIMATE.start_main_#t~post8#1| (div (+ .cse6 .cse8 (- 4)) 2)) (<= .cse5 .cse9) (<= .cse0 .cse9) (<= |c_ULTIMATE.start_main_#t~post8#1| (div (+ .cse8 2147483641 .cse10) 2)) (forall ((|aux_div_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_55| Int) (|aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| Int)) (or (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| 2) (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63|) (< (+ |c_ULTIMATE.start_main_#t~post8#1| 2) |v_ULTIMATE.start_main_~y~0#1_55|) (<= (+ |c_ULTIMATE.start_main_#t~post8#1| |c_ULTIMATE.start_main_~j~0#1| (* |aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| 2) (* 3 |v_ULTIMATE.start_main_~y~0#1_55|) (* 4 |aux_div_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63|)) 2147483615) (<= |v_ULTIMATE.start_main_~y~0#1_55| (+ 2 |aux_div_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63|)))) (<= (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~j~0#1|) 2147483646)))) is different from false