./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/busybox-1.22.0/basename-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/busybox-1.22.0/basename-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash c899d9f75a53a80fe85551911016ababc48d03a22c1656000243377f27dbc4c0 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 13:40:12,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 13:40:12,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 13:40:12,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 13:40:12,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 13:40:12,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 13:40:12,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 13:40:12,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 13:40:12,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 13:40:12,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 13:40:12,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 13:40:12,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 13:40:12,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 13:40:12,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 13:40:12,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 13:40:12,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 13:40:12,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 13:40:12,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 13:40:12,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 13:40:12,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 13:40:12,165 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 13:40:12,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 13:40:12,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 13:40:12,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 13:40:12,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 13:40:12,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 13:40:12,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 13:40:12,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 13:40:12,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 13:40:12,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 13:40:12,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 13:40:12,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 13:40:12,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 13:40:12,188 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 13:40:12,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 13:40:12,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 13:40:12,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 13:40:12,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 13:40:12,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 13:40:12,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 13:40:12,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 13:40:12,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 13:40:12,193 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-07-23 13:40:12,212 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 13:40:12,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 13:40:12,212 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 13:40:12,212 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 13:40:12,213 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 13:40:12,213 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 13:40:12,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 13:40:12,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 13:40:12,214 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 13:40:12,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 13:40:12,214 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 13:40:12,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 13:40:12,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 13:40:12,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 13:40:12,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 13:40:12,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 13:40:12,215 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-23 13:40:12,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 13:40:12,215 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 13:40:12,215 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 13:40:12,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 13:40:12,216 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 13:40:12,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 13:40:12,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:40:12,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 13:40:12,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 13:40:12,217 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 13:40:12,218 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 13:40:12,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 13:40:12,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 13:40:12,218 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c899d9f75a53a80fe85551911016ababc48d03a22c1656000243377f27dbc4c0 [2022-07-23 13:40:12,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 13:40:12,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 13:40:12,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 13:40:12,447 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 13:40:12,447 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 13:40:12,448 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/busybox-1.22.0/basename-2.i [2022-07-23 13:40:12,502 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0fa6ae06/989770c97e544b619d9907b0cae70323/FLAGf65d39b17 [2022-07-23 13:40:12,946 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 13:40:12,946 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/busybox-1.22.0/basename-2.i [2022-07-23 13:40:12,964 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0fa6ae06/989770c97e544b619d9907b0cae70323/FLAGf65d39b17 [2022-07-23 13:40:13,470 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0fa6ae06/989770c97e544b619d9907b0cae70323 [2022-07-23 13:40:13,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 13:40:13,473 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 13:40:13,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 13:40:13,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 13:40:13,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 13:40:13,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:40:13" (1/1) ... [2022-07-23 13:40:13,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18d40c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:13, skipping insertion in model container [2022-07-23 13:40:13,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:40:13" (1/1) ... [2022-07-23 13:40:13,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 13:40:13,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 13:40:13,946 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/busybox-1.22.0/basename-2.i[58078,58091] [2022-07-23 13:40:13,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:40:13,989 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 13:40:14,013 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/busybox-1.22.0/basename-2.i[58078,58091] [2022-07-23 13:40:14,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:40:14,078 INFO L208 MainTranslator]: Completed translation [2022-07-23 13:40:14,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:14 WrapperNode [2022-07-23 13:40:14,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 13:40:14,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 13:40:14,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 13:40:14,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 13:40:14,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:14" (1/1) ... [2022-07-23 13:40:14,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:14" (1/1) ... [2022-07-23 13:40:14,136 INFO L137 Inliner]: procedures = 347, calls = 114, calls flagged for inlining = 10, calls inlined = 9, statements flattened = 390 [2022-07-23 13:40:14,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 13:40:14,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 13:40:14,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 13:40:14,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 13:40:14,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:14" (1/1) ... [2022-07-23 13:40:14,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:14" (1/1) ... [2022-07-23 13:40:14,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:14" (1/1) ... [2022-07-23 13:40:14,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:14" (1/1) ... [2022-07-23 13:40:14,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:14" (1/1) ... [2022-07-23 13:40:14,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:14" (1/1) ... [2022-07-23 13:40:14,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:14" (1/1) ... [2022-07-23 13:40:14,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 13:40:14,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 13:40:14,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 13:40:14,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 13:40:14,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:14" (1/1) ... [2022-07-23 13:40:14,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:40:14,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:14,236 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 13:40:14,259 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 13:40:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 13:40:14,269 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 13:40:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 13:40:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 13:40:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 13:40:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 13:40:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 13:40:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-07-23 13:40:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 13:40:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 13:40:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 13:40:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 13:40:14,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 13:40:14,535 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 13:40:14,536 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 13:40:14,856 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 13:40:14,862 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 13:40:14,862 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2022-07-23 13:40:14,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:40:14 BoogieIcfgContainer [2022-07-23 13:40:14,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 13:40:14,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 13:40:14,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 13:40:14,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 13:40:14,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:40:13" (1/3) ... [2022-07-23 13:40:14,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40bf686a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:40:14, skipping insertion in model container [2022-07-23 13:40:14,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:40:14" (2/3) ... [2022-07-23 13:40:14,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40bf686a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:40:14, skipping insertion in model container [2022-07-23 13:40:14,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:40:14" (3/3) ... [2022-07-23 13:40:14,871 INFO L111 eAbstractionObserver]: Analyzing ICFG basename-2.i [2022-07-23 13:40:14,881 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 13:40:14,882 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-07-23 13:40:14,919 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 13:40:14,923 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@40e24160, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@d483915 [2022-07-23 13:40:14,923 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-07-23 13:40:14,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 94 states have (on average 1.7340425531914894) internal successors, (163), 118 states have internal predecessors, (163), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:14,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-23 13:40:14,935 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:14,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-23 13:40:14,936 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:14,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:14,939 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2022-07-23 13:40:14,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:14,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959916461] [2022-07-23 13:40:14,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:14,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:15,175 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 13:40:15,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:15,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959916461] [2022-07-23 13:40:15,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959916461] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:15,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:40:15,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 13:40:15,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906249729] [2022-07-23 13:40:15,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:15,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:40:15,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:15,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:40:15,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:40:15,208 INFO L87 Difference]: Start difference. First operand has 122 states, 94 states have (on average 1.7340425531914894) internal successors, (163), 118 states have internal predecessors, (163), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 13:40:15,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:15,269 INFO L93 Difference]: Finished difference Result 240 states and 331 transitions. [2022-07-23 13:40:15,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:40:15,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-07-23 13:40:15,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:15,280 INFO L225 Difference]: With dead ends: 240 [2022-07-23 13:40:15,280 INFO L226 Difference]: Without dead ends: 119 [2022-07-23 13:40:15,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 13:40:15,286 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 1 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:15,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 296 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:15,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2022-07-23 13:40:15,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2022-07-23 13:40:15,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 92 states have (on average 1.608695652173913) internal successors, (148), 115 states have internal predecessors, (148), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:15,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 152 transitions. [2022-07-23 13:40:15,330 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 152 transitions. Word has length 4 [2022-07-23 13:40:15,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:15,330 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 152 transitions. [2022-07-23 13:40:15,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 13:40:15,331 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 152 transitions. [2022-07-23 13:40:15,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-23 13:40:15,333 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:15,333 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-07-23 13:40:15,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 13:40:15,334 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:15,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:15,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1809705867, now seen corresponding path program 1 times [2022-07-23 13:40:15,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:15,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650708305] [2022-07-23 13:40:15,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:15,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:15,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-23 13:40:15,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:15,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650708305] [2022-07-23 13:40:15,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650708305] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:15,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:40:15,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 13:40:15,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001890828] [2022-07-23 13:40:15,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:15,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:40:15,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:15,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:40:15,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:40:15,425 INFO L87 Difference]: Start difference. First operand 119 states and 152 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 13:40:15,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:15,441 INFO L93 Difference]: Finished difference Result 119 states and 152 transitions. [2022-07-23 13:40:15,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:40:15,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 13:40:15,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:15,443 INFO L225 Difference]: With dead ends: 119 [2022-07-23 13:40:15,443 INFO L226 Difference]: Without dead ends: 118 [2022-07-23 13:40:15,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 13:40:15,444 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 2 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:15,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 286 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:15,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-07-23 13:40:15,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-07-23 13:40:15,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 92 states have (on average 1.5978260869565217) internal successors, (147), 114 states have internal predecessors, (147), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:15,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 151 transitions. [2022-07-23 13:40:15,450 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 151 transitions. Word has length 7 [2022-07-23 13:40:15,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:15,450 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 151 transitions. [2022-07-23 13:40:15,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 13:40:15,451 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 151 transitions. [2022-07-23 13:40:15,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-23 13:40:15,451 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:15,451 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-07-23 13:40:15,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 13:40:15,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:15,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:15,452 INFO L85 PathProgramCache]: Analyzing trace with hash 266307074, now seen corresponding path program 1 times [2022-07-23 13:40:15,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:15,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165578768] [2022-07-23 13:40:15,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:15,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:15,528 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 13:40:15,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:15,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165578768] [2022-07-23 13:40:15,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165578768] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:15,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327204582] [2022-07-23 13:40:15,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:15,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:15,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:15,533 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 13:40:15,534 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 13:40:15,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:15,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:40:15,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:15,701 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 13:40:15,702 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:40:15,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327204582] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:15,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:40:15,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-07-23 13:40:15,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682617126] [2022-07-23 13:40:15,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:15,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:40:15,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:15,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:40:15,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:40:15,705 INFO L87 Difference]: Start difference. First operand 118 states and 151 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 13:40:15,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:15,730 INFO L93 Difference]: Finished difference Result 118 states and 151 transitions. [2022-07-23 13:40:15,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:40:15,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-07-23 13:40:15,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:15,734 INFO L225 Difference]: With dead ends: 118 [2022-07-23 13:40:15,734 INFO L226 Difference]: Without dead ends: 117 [2022-07-23 13:40:15,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:40:15,737 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 135 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:15,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 155 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:15,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-07-23 13:40:15,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2022-07-23 13:40:15,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 90 states have (on average 1.6) internal successors, (144), 111 states have internal predecessors, (144), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:15,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 148 transitions. [2022-07-23 13:40:15,749 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 148 transitions. Word has length 8 [2022-07-23 13:40:15,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:15,750 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 148 transitions. [2022-07-23 13:40:15,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 13:40:15,750 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 148 transitions. [2022-07-23 13:40:15,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-23 13:40:15,751 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:15,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:15,791 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 13:40:15,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:15,968 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:15,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:15,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1917485634, now seen corresponding path program 1 times [2022-07-23 13:40:15,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:15,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306466274] [2022-07-23 13:40:15,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:15,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:16,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-23 13:40:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:16,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:40:16,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:16,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306466274] [2022-07-23 13:40:16,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306466274] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:16,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959897055] [2022-07-23 13:40:16,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:16,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:16,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:16,034 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 13:40:16,035 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 13:40:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:16,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:40:16,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:16,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:40:16,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:40:16,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:40:16,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959897055] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:40:16,171 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:40:16,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-07-23 13:40:16,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245267478] [2022-07-23 13:40:16,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:40:16,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 13:40:16,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:16,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 13:40:16,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:40:16,173 INFO L87 Difference]: Start difference. First operand 115 states and 148 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:40:16,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:16,207 INFO L93 Difference]: Finished difference Result 233 states and 301 transitions. [2022-07-23 13:40:16,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:40:16,208 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2022-07-23 13:40:16,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:16,209 INFO L225 Difference]: With dead ends: 233 [2022-07-23 13:40:16,209 INFO L226 Difference]: Without dead ends: 124 [2022-07-23 13:40:16,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:40:16,212 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 8 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:16,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 712 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:16,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-07-23 13:40:16,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2022-07-23 13:40:16,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 99 states have (on average 1.5454545454545454) internal successors, (153), 120 states have internal predecessors, (153), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:16,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 157 transitions. [2022-07-23 13:40:16,230 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 157 transitions. Word has length 13 [2022-07-23 13:40:16,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:16,231 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 157 transitions. [2022-07-23 13:40:16,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:40:16,231 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 157 transitions. [2022-07-23 13:40:16,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-23 13:40:16,232 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:16,232 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:16,252 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 13:40:16,439 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,SelfDestructingSolverStorable3 [2022-07-23 13:40:16,440 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:16,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:16,440 INFO L85 PathProgramCache]: Analyzing trace with hash 680695804, now seen corresponding path program 2 times [2022-07-23 13:40:16,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:16,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542776326] [2022-07-23 13:40:16,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:16,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:16,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 13:40:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:16,548 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:40:16,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:16,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542776326] [2022-07-23 13:40:16,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542776326] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:16,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769787485] [2022-07-23 13:40:16,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:40:16,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:16,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:16,550 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 13:40:16,551 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 13:40:16,654 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 13:40:16,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:40:16,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 13:40:16,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:16,689 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-23 13:40:16,689 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:40:16,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769787485] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:16,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:40:16,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2022-07-23 13:40:16,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824362240] [2022-07-23 13:40:16,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:16,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:40:16,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:16,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:40:16,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-07-23 13:40:16,692 INFO L87 Difference]: Start difference. First operand 124 states and 157 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:16,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:16,745 INFO L93 Difference]: Finished difference Result 124 states and 157 transitions. [2022-07-23 13:40:16,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 13:40:16,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-07-23 13:40:16,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:16,746 INFO L225 Difference]: With dead ends: 124 [2022-07-23 13:40:16,746 INFO L226 Difference]: Without dead ends: 120 [2022-07-23 13:40:16,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-23 13:40:16,748 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 131 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:16,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 396 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:16,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-07-23 13:40:16,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2022-07-23 13:40:16,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 99 states have (on average 1.505050505050505) internal successors, (149), 116 states have internal predecessors, (149), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:16,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 153 transitions. [2022-07-23 13:40:16,755 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 153 transitions. Word has length 22 [2022-07-23 13:40:16,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:16,756 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 153 transitions. [2022-07-23 13:40:16,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:16,757 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 153 transitions. [2022-07-23 13:40:16,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-23 13:40:16,757 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:16,757 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:16,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-23 13:40:16,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:16,967 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:16,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:16,968 INFO L85 PathProgramCache]: Analyzing trace with hash 838721298, now seen corresponding path program 1 times [2022-07-23 13:40:16,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:16,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325309649] [2022-07-23 13:40:16,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:16,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:17,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 13:40:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:17,068 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-23 13:40:17,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:17,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325309649] [2022-07-23 13:40:17,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325309649] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:17,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:40:17,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:40:17,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364843829] [2022-07-23 13:40:17,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:17,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:40:17,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:17,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:40:17,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:40:17,071 INFO L87 Difference]: Start difference. First operand 120 states and 153 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:17,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:17,084 INFO L93 Difference]: Finished difference Result 222 states and 289 transitions. [2022-07-23 13:40:17,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:40:17,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2022-07-23 13:40:17,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:17,085 INFO L225 Difference]: With dead ends: 222 [2022-07-23 13:40:17,085 INFO L226 Difference]: Without dead ends: 123 [2022-07-23 13:40:17,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 13:40:17,089 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 2 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:17,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 275 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:17,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-07-23 13:40:17,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2022-07-23 13:40:17,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 102 states have (on average 1.4901960784313726) internal successors, (152), 119 states have internal predecessors, (152), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:17,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 156 transitions. [2022-07-23 13:40:17,092 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 156 transitions. Word has length 28 [2022-07-23 13:40:17,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:17,092 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 156 transitions. [2022-07-23 13:40:17,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 156 transitions. [2022-07-23 13:40:17,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-23 13:40:17,093 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:17,093 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:17,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-23 13:40:17,094 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:17,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:17,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1771822670, now seen corresponding path program 1 times [2022-07-23 13:40:17,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:17,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619778301] [2022-07-23 13:40:17,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:17,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:17,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 13:40:17,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:17,217 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-23 13:40:17,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:17,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619778301] [2022-07-23 13:40:17,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619778301] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:17,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:40:17,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 13:40:17,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996172992] [2022-07-23 13:40:17,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:17,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:40:17,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:17,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:40:17,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:40:17,220 INFO L87 Difference]: Start difference. First operand 123 states and 156 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:17,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:17,239 INFO L93 Difference]: Finished difference Result 221 states and 286 transitions. [2022-07-23 13:40:17,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:40:17,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-07-23 13:40:17,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:17,242 INFO L225 Difference]: With dead ends: 221 [2022-07-23 13:40:17,242 INFO L226 Difference]: Without dead ends: 219 [2022-07-23 13:40:17,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 13:40:17,243 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 117 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:17,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 273 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:17,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-07-23 13:40:17,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 132. [2022-07-23 13:40:17,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 111 states have (on average 1.4864864864864864) internal successors, (165), 128 states have internal predecessors, (165), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:17,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 169 transitions. [2022-07-23 13:40:17,251 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 169 transitions. Word has length 31 [2022-07-23 13:40:17,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:17,252 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 169 transitions. [2022-07-23 13:40:17,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:17,252 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 169 transitions. [2022-07-23 13:40:17,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-23 13:40:17,253 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:17,253 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:17,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-23 13:40:17,253 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:17,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:17,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1771822615, now seen corresponding path program 1 times [2022-07-23 13:40:17,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:17,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160069190] [2022-07-23 13:40:17,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:17,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:17,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:17,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 13:40:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:17,327 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-23 13:40:17,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:17,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160069190] [2022-07-23 13:40:17,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160069190] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:17,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:40:17,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 13:40:17,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012066811] [2022-07-23 13:40:17,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:17,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:40:17,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:17,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:40:17,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:40:17,328 INFO L87 Difference]: Start difference. First operand 132 states and 169 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:17,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:17,338 INFO L93 Difference]: Finished difference Result 132 states and 169 transitions. [2022-07-23 13:40:17,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:40:17,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-07-23 13:40:17,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:17,339 INFO L225 Difference]: With dead ends: 132 [2022-07-23 13:40:17,339 INFO L226 Difference]: Without dead ends: 131 [2022-07-23 13:40:17,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 13:40:17,340 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 2 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:17,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 273 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:17,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-07-23 13:40:17,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2022-07-23 13:40:17,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 111 states have (on average 1.4684684684684686) internal successors, (163), 127 states have internal predecessors, (163), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:17,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 167 transitions. [2022-07-23 13:40:17,343 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 167 transitions. Word has length 31 [2022-07-23 13:40:17,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:17,343 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 167 transitions. [2022-07-23 13:40:17,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:17,344 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 167 transitions. [2022-07-23 13:40:17,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-23 13:40:17,344 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:17,344 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:17,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-23 13:40:17,344 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:17,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:17,345 INFO L85 PathProgramCache]: Analyzing trace with hash -307479222, now seen corresponding path program 1 times [2022-07-23 13:40:17,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:17,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835424274] [2022-07-23 13:40:17,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:17,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:17,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:17,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 13:40:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:17,394 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-23 13:40:17,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:17,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835424274] [2022-07-23 13:40:17,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835424274] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:17,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:40:17,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 13:40:17,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638062475] [2022-07-23 13:40:17,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:17,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:40:17,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:17,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:40:17,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:40:17,395 INFO L87 Difference]: Start difference. First operand 131 states and 167 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:17,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:17,410 INFO L93 Difference]: Finished difference Result 136 states and 172 transitions. [2022-07-23 13:40:17,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:40:17,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-07-23 13:40:17,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:17,411 INFO L225 Difference]: With dead ends: 136 [2022-07-23 13:40:17,411 INFO L226 Difference]: Without dead ends: 134 [2022-07-23 13:40:17,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 13:40:17,413 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 1 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:17,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 274 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:17,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-07-23 13:40:17,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2022-07-23 13:40:17,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 114 states have (on average 1.456140350877193) internal successors, (166), 130 states have internal predecessors, (166), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:17,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 170 transitions. [2022-07-23 13:40:17,417 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 170 transitions. Word has length 32 [2022-07-23 13:40:17,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:17,417 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 170 transitions. [2022-07-23 13:40:17,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:17,417 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 170 transitions. [2022-07-23 13:40:17,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-23 13:40:17,420 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:17,420 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:17,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-23 13:40:17,420 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:17,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:17,420 INFO L85 PathProgramCache]: Analyzing trace with hash -393488939, now seen corresponding path program 1 times [2022-07-23 13:40:17,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:17,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478221846] [2022-07-23 13:40:17,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:17,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:17,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 13:40:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:17,508 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:40:17,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:17,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478221846] [2022-07-23 13:40:17,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478221846] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:17,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78007735] [2022-07-23 13:40:17,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:17,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:17,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:17,510 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 13:40:17,511 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 13:40:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:17,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 13:40:17,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:17,676 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:40:17,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:40:17,732 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:40:17,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78007735] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:40:17,732 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:40:17,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-07-23 13:40:17,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156116710] [2022-07-23 13:40:17,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:40:17,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-23 13:40:17,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:17,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-23 13:40:17,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-07-23 13:40:17,734 INFO L87 Difference]: Start difference. First operand 134 states and 170 transitions. Second operand has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:40:17,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:17,774 INFO L93 Difference]: Finished difference Result 271 states and 348 transitions. [2022-07-23 13:40:17,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 13:40:17,774 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-07-23 13:40:17,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:17,775 INFO L225 Difference]: With dead ends: 271 [2022-07-23 13:40:17,775 INFO L226 Difference]: Without dead ends: 152 [2022-07-23 13:40:17,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-07-23 13:40:17,776 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 20 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:17,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 413 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:17,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-07-23 13:40:17,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2022-07-23 13:40:17,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 132 states have (on average 1.393939393939394) internal successors, (184), 148 states have internal predecessors, (184), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:17,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 188 transitions. [2022-07-23 13:40:17,780 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 188 transitions. Word has length 32 [2022-07-23 13:40:17,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:17,781 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 188 transitions. [2022-07-23 13:40:17,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.923076923076923) internal successors, (51), 13 states have internal predecessors, (51), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:40:17,781 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 188 transitions. [2022-07-23 13:40:17,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-23 13:40:17,783 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:17,784 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:17,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-23 13:40:17,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:17,999 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:18,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:18,000 INFO L85 PathProgramCache]: Analyzing trace with hash -612238187, now seen corresponding path program 2 times [2022-07-23 13:40:18,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:18,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085200962] [2022-07-23 13:40:18,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:18,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:18,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:18,088 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-23 13:40:18,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:18,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085200962] [2022-07-23 13:40:18,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085200962] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:18,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:40:18,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:40:18,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505438902] [2022-07-23 13:40:18,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:18,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:40:18,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:18,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:40:18,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-23 13:40:18,090 INFO L87 Difference]: Start difference. First operand 152 states and 188 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:18,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:18,097 INFO L93 Difference]: Finished difference Result 270 states and 350 transitions. [2022-07-23 13:40:18,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:40:18,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-07-23 13:40:18,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:18,099 INFO L225 Difference]: With dead ends: 270 [2022-07-23 13:40:18,100 INFO L226 Difference]: Without dead ends: 183 [2022-07-23 13:40:18,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 13:40:18,101 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 79 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:18,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 289 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:18,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-07-23 13:40:18,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 129. [2022-07-23 13:40:18,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 117 states have (on average 1.3247863247863247) internal successors, (155), 125 states have internal predecessors, (155), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:18,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 159 transitions. [2022-07-23 13:40:18,106 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 159 transitions. Word has length 50 [2022-07-23 13:40:18,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:18,106 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 159 transitions. [2022-07-23 13:40:18,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:18,106 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 159 transitions. [2022-07-23 13:40:18,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-23 13:40:18,108 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:18,109 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:18,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-23 13:40:18,109 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:18,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:18,110 INFO L85 PathProgramCache]: Analyzing trace with hash 689324614, now seen corresponding path program 1 times [2022-07-23 13:40:18,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:18,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672377199] [2022-07-23 13:40:18,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:18,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:18,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:18,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:18,205 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-23 13:40:18,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:18,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672377199] [2022-07-23 13:40:18,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672377199] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:18,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596234586] [2022-07-23 13:40:18,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:18,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:18,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:18,208 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 13:40:18,209 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 13:40:18,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:18,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:40:18,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:18,439 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-23 13:40:18,439 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:40:18,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596234586] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:18,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:40:18,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-07-23 13:40:18,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095948364] [2022-07-23 13:40:18,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:18,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:40:18,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:18,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:40:18,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:40:18,441 INFO L87 Difference]: Start difference. First operand 129 states and 159 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:18,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:18,462 INFO L93 Difference]: Finished difference Result 194 states and 248 transitions. [2022-07-23 13:40:18,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:40:18,462 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2022-07-23 13:40:18,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:18,463 INFO L225 Difference]: With dead ends: 194 [2022-07-23 13:40:18,463 INFO L226 Difference]: Without dead ends: 193 [2022-07-23 13:40:18,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 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 13:40:18,464 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 180 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:18,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 299 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:18,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-07-23 13:40:18,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 124. [2022-07-23 13:40:18,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 113 states have (on average 1.3185840707964602) internal successors, (149), 120 states have internal predecessors, (149), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:18,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 153 transitions. [2022-07-23 13:40:18,469 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 153 transitions. Word has length 50 [2022-07-23 13:40:18,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:18,469 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 153 transitions. [2022-07-23 13:40:18,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:18,469 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 153 transitions. [2022-07-23 13:40:18,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-07-23 13:40:18,470 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:18,470 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:18,503 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 13:40:18,683 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,SelfDestructingSolverStorable11 [2022-07-23 13:40:18,684 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:18,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:18,684 INFO L85 PathProgramCache]: Analyzing trace with hash 51318775, now seen corresponding path program 1 times [2022-07-23 13:40:18,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:18,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249861579] [2022-07-23 13:40:18,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:18,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:18,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:18,772 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-23 13:40:18,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:18,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249861579] [2022-07-23 13:40:18,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249861579] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:18,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:40:18,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 13:40:18,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766415829] [2022-07-23 13:40:18,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:18,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:40:18,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:18,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:40:18,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:40:18,774 INFO L87 Difference]: Start difference. First operand 124 states and 153 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:18,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:18,833 INFO L93 Difference]: Finished difference Result 189 states and 242 transitions. [2022-07-23 13:40:18,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:40:18,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2022-07-23 13:40:18,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:18,836 INFO L225 Difference]: With dead ends: 189 [2022-07-23 13:40:18,836 INFO L226 Difference]: Without dead ends: 188 [2022-07-23 13:40:18,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:40:18,837 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 246 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:18,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 422 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:18,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2022-07-23 13:40:18,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 132. [2022-07-23 13:40:18,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 121 states have (on average 1.3140495867768596) internal successors, (159), 128 states have internal predecessors, (159), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:18,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 163 transitions. [2022-07-23 13:40:18,845 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 163 transitions. Word has length 52 [2022-07-23 13:40:18,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:18,845 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 163 transitions. [2022-07-23 13:40:18,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:18,845 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 163 transitions. [2022-07-23 13:40:18,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-23 13:40:18,846 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:18,846 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:18,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-23 13:40:18,846 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:18,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:18,847 INFO L85 PathProgramCache]: Analyzing trace with hash -241356089, now seen corresponding path program 1 times [2022-07-23 13:40:18,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:18,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966097507] [2022-07-23 13:40:18,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:18,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:18,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:18,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:18,919 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-23 13:40:18,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:18,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966097507] [2022-07-23 13:40:18,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966097507] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:18,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24357874] [2022-07-23 13:40:18,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:18,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:18,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:18,921 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 13:40:18,923 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 13:40:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:19,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:40:19,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:19,143 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-07-23 13:40:19,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:40:19,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24357874] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:19,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:40:19,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2022-07-23 13:40:19,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781850775] [2022-07-23 13:40:19,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:19,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:40:19,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:19,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:40:19,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:40:19,145 INFO L87 Difference]: Start difference. First operand 132 states and 163 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:19,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:19,195 INFO L93 Difference]: Finished difference Result 188 states and 241 transitions. [2022-07-23 13:40:19,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 13:40:19,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-07-23 13:40:19,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:19,196 INFO L225 Difference]: With dead ends: 188 [2022-07-23 13:40:19,196 INFO L226 Difference]: Without dead ends: 176 [2022-07-23 13:40:19,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-23 13:40:19,197 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 160 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:19,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 404 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:19,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-07-23 13:40:19,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 173. [2022-07-23 13:40:19,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 161 states have (on average 1.360248447204969) internal successors, (219), 168 states have internal predecessors, (219), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 13:40:19,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 225 transitions. [2022-07-23 13:40:19,203 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 225 transitions. Word has length 53 [2022-07-23 13:40:19,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:19,204 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 225 transitions. [2022-07-23 13:40:19,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:19,204 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 225 transitions. [2022-07-23 13:40:19,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-07-23 13:40:19,204 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:19,204 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:19,224 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 13:40:19,427 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 13:40:19,427 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:19,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:19,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1590882203, now seen corresponding path program 1 times [2022-07-23 13:40:19,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:19,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613625861] [2022-07-23 13:40:19,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:19,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:19,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:19,571 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-23 13:40:19,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:19,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613625861] [2022-07-23 13:40:19,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613625861] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:19,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:40:19,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 13:40:19,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612627684] [2022-07-23 13:40:19,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:19,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 13:40:19,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:19,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 13:40:19,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:40:19,572 INFO L87 Difference]: Start difference. First operand 173 states and 225 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:19,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:19,636 INFO L93 Difference]: Finished difference Result 267 states and 361 transitions. [2022-07-23 13:40:19,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:40:19,637 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-07-23 13:40:19,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:19,638 INFO L225 Difference]: With dead ends: 267 [2022-07-23 13:40:19,638 INFO L226 Difference]: Without dead ends: 266 [2022-07-23 13:40:19,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-23 13:40:19,640 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 238 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:19,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 372 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:19,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-07-23 13:40:19,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 172. [2022-07-23 13:40:19,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 161 states have (on average 1.3478260869565217) internal successors, (217), 167 states have internal predecessors, (217), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 13:40:19,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 223 transitions. [2022-07-23 13:40:19,646 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 223 transitions. Word has length 53 [2022-07-23 13:40:19,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:19,647 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 223 transitions. [2022-07-23 13:40:19,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:19,647 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 223 transitions. [2022-07-23 13:40:19,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-23 13:40:19,647 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:19,647 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:19,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-23 13:40:19,647 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:19,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:19,648 INFO L85 PathProgramCache]: Analyzing trace with hash -393033958, now seen corresponding path program 1 times [2022-07-23 13:40:19,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:19,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410061873] [2022-07-23 13:40:19,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:19,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:19,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:19,733 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-07-23 13:40:19,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:19,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410061873] [2022-07-23 13:40:19,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410061873] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:19,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877418426] [2022-07-23 13:40:19,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:19,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:19,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:19,735 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 13:40:19,736 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 13:40:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:20,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:40:20,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:20,023 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-07-23 13:40:20,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:40:20,038 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-07-23 13:40:20,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877418426] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:40:20,039 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:40:20,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-07-23 13:40:20,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647086907] [2022-07-23 13:40:20,039 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:40:20,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 13:40:20,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:20,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 13:40:20,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:40:20,040 INFO L87 Difference]: Start difference. First operand 172 states and 223 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:20,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:20,063 INFO L93 Difference]: Finished difference Result 269 states and 351 transitions. [2022-07-23 13:40:20,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:40:20,064 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2022-07-23 13:40:20,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:20,064 INFO L225 Difference]: With dead ends: 269 [2022-07-23 13:40:20,065 INFO L226 Difference]: Without dead ends: 190 [2022-07-23 13:40:20,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:40:20,065 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 12 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:20,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 318 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:20,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2022-07-23 13:40:20,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2022-07-23 13:40:20,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 179 states have (on average 1.312849162011173) internal successors, (235), 185 states have internal predecessors, (235), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 13:40:20,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 241 transitions. [2022-07-23 13:40:20,074 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 241 transitions. Word has length 56 [2022-07-23 13:40:20,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:20,074 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 241 transitions. [2022-07-23 13:40:20,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:20,075 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 241 transitions. [2022-07-23 13:40:20,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-23 13:40:20,075 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:20,075 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:20,098 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 13:40:20,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:20,294 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:20,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:20,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1063722415, now seen corresponding path program 1 times [2022-07-23 13:40:20,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:20,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719395644] [2022-07-23 13:40:20,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:20,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:20,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:20,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:20,392 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-23 13:40:20,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:20,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719395644] [2022-07-23 13:40:20,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719395644] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:20,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567113070] [2022-07-23 13:40:20,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:20,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:20,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:20,408 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 13:40:20,409 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 13:40:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:20,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 13:40:20,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:20,711 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-23 13:40:20,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:40:20,756 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-23 13:40:20,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567113070] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:40:20,757 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:40:20,757 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-07-23 13:40:20,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138455188] [2022-07-23 13:40:20,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:40:20,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-23 13:40:20,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:20,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-23 13:40:20,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-07-23 13:40:20,758 INFO L87 Difference]: Start difference. First operand 190 states and 241 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:20,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:20,807 INFO L93 Difference]: Finished difference Result 314 states and 402 transitions. [2022-07-23 13:40:20,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 13:40:20,807 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-07-23 13:40:20,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:20,808 INFO L225 Difference]: With dead ends: 314 [2022-07-23 13:40:20,808 INFO L226 Difference]: Without dead ends: 226 [2022-07-23 13:40:20,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-07-23 13:40:20,809 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 30 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:20,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 528 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:20,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-07-23 13:40:20,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2022-07-23 13:40:20,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 215 states have (on average 1.2604651162790699) internal successors, (271), 221 states have internal predecessors, (271), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 13:40:20,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 277 transitions. [2022-07-23 13:40:20,817 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 277 transitions. Word has length 68 [2022-07-23 13:40:20,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:20,817 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 277 transitions. [2022-07-23 13:40:20,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:20,817 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 277 transitions. [2022-07-23 13:40:20,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-23 13:40:20,818 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:20,818 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:20,844 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 13:40:21,035 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,SelfDestructingSolverStorable16 [2022-07-23 13:40:21,036 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:21,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:21,036 INFO L85 PathProgramCache]: Analyzing trace with hash -2004228324, now seen corresponding path program 1 times [2022-07-23 13:40:21,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:21,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957476005] [2022-07-23 13:40:21,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:21,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:21,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:21,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-23 13:40:21,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:21,155 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2022-07-23 13:40:21,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:21,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957476005] [2022-07-23 13:40:21,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957476005] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:21,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:40:21,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 13:40:21,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269249897] [2022-07-23 13:40:21,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:21,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 13:40:21,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:21,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 13:40:21,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-07-23 13:40:21,157 INFO L87 Difference]: Start difference. First operand 226 states and 277 transitions. Second operand has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:21,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:21,283 INFO L93 Difference]: Finished difference Result 296 states and 362 transitions. [2022-07-23 13:40:21,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-23 13:40:21,283 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2022-07-23 13:40:21,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:21,284 INFO L225 Difference]: With dead ends: 296 [2022-07-23 13:40:21,284 INFO L226 Difference]: Without dead ends: 285 [2022-07-23 13:40:21,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2022-07-23 13:40:21,285 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 100 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:21,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 561 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:40:21,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-07-23 13:40:21,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 253. [2022-07-23 13:40:21,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 240 states have (on average 1.2666666666666666) internal successors, (304), 246 states have internal predecessors, (304), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-23 13:40:21,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 314 transitions. [2022-07-23 13:40:21,297 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 314 transitions. Word has length 73 [2022-07-23 13:40:21,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:21,297 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 314 transitions. [2022-07-23 13:40:21,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:21,297 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 314 transitions. [2022-07-23 13:40:21,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-23 13:40:21,298 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:21,298 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:21,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-23 13:40:21,298 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:21,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:21,298 INFO L85 PathProgramCache]: Analyzing trace with hash -2001535557, now seen corresponding path program 1 times [2022-07-23 13:40:21,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:21,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306514717] [2022-07-23 13:40:21,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:21,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:21,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:21,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:21,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-23 13:40:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:21,376 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2022-07-23 13:40:21,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:21,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306514717] [2022-07-23 13:40:21,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306514717] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:21,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:40:21,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:40:21,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296693541] [2022-07-23 13:40:21,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:21,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:40:21,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:21,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:40:21,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:40:21,377 INFO L87 Difference]: Start difference. First operand 253 states and 314 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:21,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:21,397 INFO L93 Difference]: Finished difference Result 267 states and 329 transitions. [2022-07-23 13:40:21,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:40:21,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-07-23 13:40:21,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:21,399 INFO L225 Difference]: With dead ends: 267 [2022-07-23 13:40:21,399 INFO L226 Difference]: Without dead ends: 266 [2022-07-23 13:40:21,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:40:21,399 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 18 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:21,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 237 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:21,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-07-23 13:40:21,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 255. [2022-07-23 13:40:21,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 242 states have (on average 1.2644628099173554) internal successors, (306), 248 states have internal predecessors, (306), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-23 13:40:21,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 316 transitions. [2022-07-23 13:40:21,408 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 316 transitions. Word has length 74 [2022-07-23 13:40:21,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:21,409 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 316 transitions. [2022-07-23 13:40:21,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:21,409 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 316 transitions. [2022-07-23 13:40:21,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-23 13:40:21,409 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:21,410 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:21,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-23 13:40:21,410 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:21,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:21,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1077583441, now seen corresponding path program 2 times [2022-07-23 13:40:21,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:21,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141916797] [2022-07-23 13:40:21,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:21,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:21,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:21,564 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-07-23 13:40:21,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:21,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141916797] [2022-07-23 13:40:21,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141916797] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:21,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994175494] [2022-07-23 13:40:21,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:40:21,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:21,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:21,566 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 13:40:21,567 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 13:40:21,821 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 13:40:21,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:40:21,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:40:21,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:21,876 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-07-23 13:40:21,876 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:40:21,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994175494] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:21,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:40:21,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-07-23 13:40:21,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070217891] [2022-07-23 13:40:21,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:21,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:40:21,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:21,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:40:21,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-23 13:40:21,878 INFO L87 Difference]: Start difference. First operand 255 states and 316 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:21,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:21,913 INFO L93 Difference]: Finished difference Result 255 states and 316 transitions. [2022-07-23 13:40:21,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:40:21,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 86 [2022-07-23 13:40:21,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:21,914 INFO L225 Difference]: With dead ends: 255 [2022-07-23 13:40:21,914 INFO L226 Difference]: Without dead ends: 254 [2022-07-23 13:40:21,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-07-23 13:40:21,915 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 157 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:21,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 131 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:21,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2022-07-23 13:40:21,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2022-07-23 13:40:21,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 242 states have (on average 1.2603305785123966) internal successors, (305), 247 states have internal predecessors, (305), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-23 13:40:21,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 315 transitions. [2022-07-23 13:40:21,924 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 315 transitions. Word has length 86 [2022-07-23 13:40:21,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:21,925 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 315 transitions. [2022-07-23 13:40:21,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:21,925 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 315 transitions. [2022-07-23 13:40:21,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-23 13:40:21,925 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:21,925 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:21,955 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 13:40:22,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:22,147 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:22,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:22,148 INFO L85 PathProgramCache]: Analyzing trace with hash -877586417, now seen corresponding path program 1 times [2022-07-23 13:40:22,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:22,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953757234] [2022-07-23 13:40:22,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:22,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:22,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:22,246 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-07-23 13:40:22,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:22,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953757234] [2022-07-23 13:40:22,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953757234] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:22,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69489901] [2022-07-23 13:40:22,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:22,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:22,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:22,248 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 13:40:22,264 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 13:40:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:22,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:40:22,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:22,614 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-07-23 13:40:22,615 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:40:22,629 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-07-23 13:40:22,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69489901] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:40:22,630 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:40:22,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-07-23 13:40:22,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666778743] [2022-07-23 13:40:22,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:40:22,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 13:40:22,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:22,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 13:40:22,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:40:22,631 INFO L87 Difference]: Start difference. First operand 254 states and 315 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:22,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:22,658 INFO L93 Difference]: Finished difference Result 263 states and 328 transitions. [2022-07-23 13:40:22,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 13:40:22,658 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 87 [2022-07-23 13:40:22,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:22,659 INFO L225 Difference]: With dead ends: 263 [2022-07-23 13:40:22,659 INFO L226 Difference]: Without dead ends: 262 [2022-07-23 13:40:22,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:40:22,660 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 9 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:22,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 312 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:22,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2022-07-23 13:40:22,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2022-07-23 13:40:22,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 250 states have (on average 1.26) internal successors, (315), 255 states have internal predecessors, (315), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-23 13:40:22,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 325 transitions. [2022-07-23 13:40:22,672 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 325 transitions. Word has length 87 [2022-07-23 13:40:22,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:22,672 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 325 transitions. [2022-07-23 13:40:22,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:22,672 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 325 transitions. [2022-07-23 13:40:22,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-23 13:40:22,673 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:22,673 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:22,694 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 13:40:22,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-07-23 13:40:22,883 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:22,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:22,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1510288111, now seen corresponding path program 1 times [2022-07-23 13:40:22,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:22,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657400645] [2022-07-23 13:40:22,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:22,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:23,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:23,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-23 13:40:23,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:23,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-23 13:40:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:23,070 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2022-07-23 13:40:23,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:23,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657400645] [2022-07-23 13:40:23,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657400645] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:23,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:40:23,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 13:40:23,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560085656] [2022-07-23 13:40:23,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:23,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 13:40:23,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:23,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 13:40:23,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:40:23,072 INFO L87 Difference]: Start difference. First operand 262 states and 325 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:23,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:23,151 INFO L93 Difference]: Finished difference Result 268 states and 328 transitions. [2022-07-23 13:40:23,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:40:23,151 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 90 [2022-07-23 13:40:23,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:23,152 INFO L225 Difference]: With dead ends: 268 [2022-07-23 13:40:23,152 INFO L226 Difference]: Without dead ends: 199 [2022-07-23 13:40:23,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-23 13:40:23,154 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 129 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:23,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 377 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:40:23,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-07-23 13:40:23,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2022-07-23 13:40:23,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 189 states have (on average 1.2116402116402116) internal successors, (229), 194 states have internal predecessors, (229), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 13:40:23,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 235 transitions. [2022-07-23 13:40:23,162 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 235 transitions. Word has length 90 [2022-07-23 13:40:23,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:23,163 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 235 transitions. [2022-07-23 13:40:23,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-23 13:40:23,163 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 235 transitions. [2022-07-23 13:40:23,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-23 13:40:23,165 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:23,165 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:23,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-23 13:40:23,165 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:23,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:23,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1435374785, now seen corresponding path program 1 times [2022-07-23 13:40:23,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:23,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727143122] [2022-07-23 13:40:23,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:23,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:23,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:23,270 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-07-23 13:40:23,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:23,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727143122] [2022-07-23 13:40:23,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727143122] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:23,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [169244660] [2022-07-23 13:40:23,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:23,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:23,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:23,272 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 13:40:23,272 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 13:40:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:23,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:40:23,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:23,709 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-07-23 13:40:23,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:40:23,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [169244660] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:23,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:40:23,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-07-23 13:40:23,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635325099] [2022-07-23 13:40:23,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:23,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:40:23,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:23,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:40:23,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:40:23,711 INFO L87 Difference]: Start difference. First operand 199 states and 235 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:23,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:23,725 INFO L93 Difference]: Finished difference Result 199 states and 235 transitions. [2022-07-23 13:40:23,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:40:23,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-07-23 13:40:23,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:23,726 INFO L225 Difference]: With dead ends: 199 [2022-07-23 13:40:23,726 INFO L226 Difference]: Without dead ends: 198 [2022-07-23 13:40:23,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 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 13:40:23,727 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 1 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:23,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 311 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:23,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-07-23 13:40:23,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-07-23 13:40:23,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 189 states have (on average 1.1957671957671958) internal successors, (226), 193 states have internal predecessors, (226), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 13:40:23,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 232 transitions. [2022-07-23 13:40:23,735 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 232 transitions. Word has length 88 [2022-07-23 13:40:23,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:23,735 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 232 transitions. [2022-07-23 13:40:23,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:23,736 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 232 transitions. [2022-07-23 13:40:23,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-23 13:40:23,736 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:23,736 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:23,767 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 13:40:23,951 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,SelfDestructingSolverStorable22 [2022-07-23 13:40:23,952 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:23,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:23,952 INFO L85 PathProgramCache]: Analyzing trace with hash 824876418, now seen corresponding path program 2 times [2022-07-23 13:40:23,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:23,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005716579] [2022-07-23 13:40:23,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:23,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:24,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:24,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:24,080 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2022-07-23 13:40:24,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:24,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005716579] [2022-07-23 13:40:24,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005716579] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:24,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610982317] [2022-07-23 13:40:24,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:40:24,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:24,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:24,083 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 13:40:24,084 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 13:40:24,415 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 13:40:24,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:40:24,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:40:24,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:24,489 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2022-07-23 13:40:24,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:40:24,558 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2022-07-23 13:40:24,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [610982317] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:40:24,558 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:40:24,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-23 13:40:24,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677240894] [2022-07-23 13:40:24,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:40:24,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 13:40:24,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:24,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 13:40:24,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:40:24,559 INFO L87 Difference]: Start difference. First operand 198 states and 232 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:24,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:24,598 INFO L93 Difference]: Finished difference Result 198 states and 232 transitions. [2022-07-23 13:40:24,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:40:24,599 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 96 [2022-07-23 13:40:24,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:24,599 INFO L225 Difference]: With dead ends: 198 [2022-07-23 13:40:24,600 INFO L226 Difference]: Without dead ends: 178 [2022-07-23 13:40:24,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 190 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-23 13:40:24,601 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 151 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:24,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 297 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:24,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-07-23 13:40:24,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2022-07-23 13:40:24,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 170 states have (on average 1.1764705882352942) internal successors, (200), 173 states have internal predecessors, (200), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 13:40:24,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 206 transitions. [2022-07-23 13:40:24,609 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 206 transitions. Word has length 96 [2022-07-23 13:40:24,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:24,609 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 206 transitions. [2022-07-23 13:40:24,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:24,610 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 206 transitions. [2022-07-23 13:40:24,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-23 13:40:24,610 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:24,610 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:24,631 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 13:40:24,825 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,SelfDestructingSolverStorable23 [2022-07-23 13:40:24,825 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:24,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:24,826 INFO L85 PathProgramCache]: Analyzing trace with hash 339028874, now seen corresponding path program 2 times [2022-07-23 13:40:24,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:24,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146253452] [2022-07-23 13:40:24,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:24,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:24,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:24,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:24,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:24,970 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 0 proven. 323 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-07-23 13:40:24,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:24,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146253452] [2022-07-23 13:40:24,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146253452] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:24,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070371783] [2022-07-23 13:40:24,971 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:40:24,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:24,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:24,972 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:40:24,973 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 13:40:25,374 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-23 13:40:25,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:40:25,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:40:25,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:25,462 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 0 proven. 322 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-07-23 13:40:25,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:40:25,536 INFO L134 CoverageAnalysis]: Checked inductivity of 758 backedges. 0 proven. 322 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-07-23 13:40:25,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070371783] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:40:25,536 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:40:25,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2022-07-23 13:40:25,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542262871] [2022-07-23 13:40:25,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:40:25,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-23 13:40:25,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:25,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-23 13:40:25,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-07-23 13:40:25,538 INFO L87 Difference]: Start difference. First operand 178 states and 206 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:25,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:25,624 INFO L93 Difference]: Finished difference Result 343 states and 424 transitions. [2022-07-23 13:40:25,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-23 13:40:25,624 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 110 [2022-07-23 13:40:25,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:25,627 INFO L225 Difference]: With dead ends: 343 [2022-07-23 13:40:25,627 INFO L226 Difference]: Without dead ends: 342 [2022-07-23 13:40:25,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2022-07-23 13:40:25,627 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 409 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:25,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 393 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:25,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-07-23 13:40:25,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 177. [2022-07-23 13:40:25,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 170 states have (on average 1.1705882352941177) internal successors, (199), 172 states have internal predecessors, (199), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 13:40:25,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 205 transitions. [2022-07-23 13:40:25,635 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 205 transitions. Word has length 110 [2022-07-23 13:40:25,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:25,635 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 205 transitions. [2022-07-23 13:40:25,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:25,636 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 205 transitions. [2022-07-23 13:40:25,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-23 13:40:25,636 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:25,636 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:25,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-07-23 13:40:25,849 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,SelfDestructingSolverStorable24 [2022-07-23 13:40:25,850 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:25,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:25,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1919960588, now seen corresponding path program 1 times [2022-07-23 13:40:25,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:25,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759335489] [2022-07-23 13:40:25,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:25,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:25,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:25,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:26,020 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-07-23 13:40:26,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:26,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759335489] [2022-07-23 13:40:26,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759335489] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:26,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651844298] [2022-07-23 13:40:26,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:26,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:26,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:26,022 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 13:40:26,023 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 13:40:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:26,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:40:26,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:26,586 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-07-23 13:40:26,586 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:40:26,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651844298] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:40:26,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:40:26,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-07-23 13:40:26,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942200474] [2022-07-23 13:40:26,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:40:26,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:40:26,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:26,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:40:26,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:40:26,587 INFO L87 Difference]: Start difference. First operand 177 states and 205 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:26,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:26,612 INFO L93 Difference]: Finished difference Result 177 states and 205 transitions. [2022-07-23 13:40:26,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:40:26,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2022-07-23 13:40:26,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:26,614 INFO L225 Difference]: With dead ends: 177 [2022-07-23 13:40:26,614 INFO L226 Difference]: Without dead ends: 176 [2022-07-23 13:40:26,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 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 13:40:26,616 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 140 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:26,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 111 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:40:26,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-07-23 13:40:26,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 143. [2022-07-23 13:40:26,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 137 states have (on average 1.197080291970803) internal successors, (164), 138 states have internal predecessors, (164), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 13:40:26,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 170 transitions. [2022-07-23 13:40:26,630 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 170 transitions. Word has length 111 [2022-07-23 13:40:26,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:26,630 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 170 transitions. [2022-07-23 13:40:26,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:40:26,631 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 170 transitions. [2022-07-23 13:40:26,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-23 13:40:26,632 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:26,632 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:26,671 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 13:40:26,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:26,855 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:26,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:26,856 INFO L85 PathProgramCache]: Analyzing trace with hash -249684791, now seen corresponding path program 1 times [2022-07-23 13:40:26,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:26,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336159176] [2022-07-23 13:40:26,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:26,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:26,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:27,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-23 13:40:27,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:27,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-23 13:40:27,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:27,027 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2022-07-23 13:40:27,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:27,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336159176] [2022-07-23 13:40:27,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336159176] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:27,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256560746] [2022-07-23 13:40:27,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:27,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:27,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:27,029 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 13:40:27,031 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 13:40:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:27,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-23 13:40:27,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:27,721 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2022-07-23 13:40:27,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:40:27,947 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2022-07-23 13:40:27,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256560746] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:40:27,948 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:40:27,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2022-07-23 13:40:27,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795011912] [2022-07-23 13:40:27,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:40:27,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-23 13:40:27,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:40:27,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-23 13:40:27,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2022-07-23 13:40:27,949 INFO L87 Difference]: Start difference. First operand 143 states and 170 transitions. Second operand has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 states have internal predecessors, (84), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-07-23 13:40:28,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:40:28,126 INFO L93 Difference]: Finished difference Result 280 states and 333 transitions. [2022-07-23 13:40:28,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-23 13:40:28,127 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 states have internal predecessors, (84), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 124 [2022-07-23 13:40:28,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:40:28,128 INFO L225 Difference]: With dead ends: 280 [2022-07-23 13:40:28,128 INFO L226 Difference]: Without dead ends: 210 [2022-07-23 13:40:28,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2022-07-23 13:40:28,129 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 189 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:40:28,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 523 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:40:28,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-07-23 13:40:28,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 177. [2022-07-23 13:40:28,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 171 states have (on average 1.1637426900584795) internal successors, (199), 172 states have internal predecessors, (199), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-07-23 13:40:28,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 205 transitions. [2022-07-23 13:40:28,152 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 205 transitions. Word has length 124 [2022-07-23 13:40:28,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:40:28,152 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 205 transitions. [2022-07-23 13:40:28,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 states have internal predecessors, (84), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2022-07-23 13:40:28,153 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 205 transitions. [2022-07-23 13:40:28,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-07-23 13:40:28,153 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:40:28,154 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:40:28,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-23 13:40:28,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-07-23 13:40:28,367 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-07-23 13:40:28,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:40:28,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1132890495, now seen corresponding path program 2 times [2022-07-23 13:40:28,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:40:28,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935287121] [2022-07-23 13:40:28,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:40:28,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:40:28,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:29,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-23 13:40:29,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:29,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-23 13:40:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:29,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-23 13:40:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:40:29,671 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 471 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2022-07-23 13:40:29,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:40:29,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935287121] [2022-07-23 13:40:29,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935287121] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:40:29,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933541715] [2022-07-23 13:40:29,671 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:40:29,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:40:29,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:40:29,673 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:40:29,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-23 13:40:30,252 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-23 13:40:30,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:40:30,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 65 conjunts are in the unsatisfiable core [2022-07-23 13:40:30,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:40:30,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-23 13:40:30,302 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-07-23 13:40:30,302 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-07-23 13:40:30,355 INFO L356 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-07-23 13:40:30,356 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2022-07-23 13:40:30,626 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2022-07-23 13:40:30,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-23 13:40:30,643 INFO L356 Elim1Store]: treesize reduction 28, result has 28.2 percent of original size [2022-07-23 13:40:30,643 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 46 [2022-07-23 13:40:30,658 INFO L356 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2022-07-23 13:40:30,659 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 34 [2022-07-23 13:40:30,694 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-23 13:40:30,695 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 40 [2022-07-23 13:40:30,724 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-23 13:40:30,724 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 40 [2022-07-23 13:40:30,768 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-23 13:40:30,768 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 40 [2022-07-23 13:40:30,792 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-23 13:40:30,793 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 40 [2022-07-23 13:40:30,839 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-23 13:40:30,842 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 40 [2022-07-23 13:40:30,872 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-23 13:40:30,873 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 40 [2022-07-23 13:40:30,907 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-23 13:40:30,907 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 40 [2022-07-23 13:40:30,930 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-23 13:40:30,930 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 40 [2022-07-23 13:40:30,955 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-23 13:40:30,955 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 40 [2022-07-23 13:40:30,978 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-23 13:40:30,979 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 58 [2022-07-23 13:40:31,025 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-23 13:40:31,027 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-23 13:40:31,027 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 15 [2022-07-23 13:40:31,049 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 8 proven. 354 refuted. 0 times theorem prover too weak. 422 trivial. 0 not checked. [2022-07-23 13:40:31,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:40:31,124 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8129 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~4#1|) |c_ULTIMATE.start_main_~argv~0#1.offset|)) v_ArrVal_8129) |c_ULTIMATE.start_main_~argv~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~argv~0#1.offset|)) 0))) is different from false [2022-07-23 13:40:31,149 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8129 (Array Int Int)) (v_ArrVal_8128 (Array Int Int))) (not (= (select (select (let ((.cse1 (+ (* 8 |c_ULTIMATE.start_main_~i~4#1|) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8128))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8129))) |c_ULTIMATE.start_main_~argv~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~argv~0#1.offset|)) 0))) is different from false [2022-07-23 13:40:31,160 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8129 (Array Int Int)) (v_ArrVal_8127 (Array Int Int)) (v_ArrVal_8128 (Array Int Int))) (not (= (select (select (let ((.cse1 (+ (* 8 |c_ULTIMATE.start_main_~i~4#1|) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8127))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8128)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8129))) |c_ULTIMATE.start_main_~argv~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~argv~0#1.offset|)) 0))) is different from false [2022-07-23 13:40:31,174 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8126 (Array Int Int)) (v_ArrVal_8129 (Array Int Int)) (v_ArrVal_8127 (Array Int Int)) (v_ArrVal_8128 (Array Int Int))) (not (= (select (select (let ((.cse1 (+ (* 8 |c_ULTIMATE.start_main_~i~4#1|) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8126))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8127)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8128)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8129))) |c_ULTIMATE.start_main_~argv~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~argv~0#1.offset|)) 0))) is different from false [2022-07-23 13:40:31,204 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8125 (Array Int Int)) (v_ArrVal_8126 (Array Int Int)) (v_ArrVal_8129 (Array Int Int)) (v_ArrVal_8127 (Array Int Int)) (v_ArrVal_8128 (Array Int Int))) (not (= (select (select (let ((.cse1 (+ (* 8 |c_ULTIMATE.start_main_~i~4#1|) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8125))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8126)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8127)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8128)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8129))) |c_ULTIMATE.start_main_~argv~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~argv~0#1.offset|)) 0))) is different from false [2022-07-23 13:40:31,229 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8125 (Array Int Int)) (v_ArrVal_8126 (Array Int Int)) (v_ArrVal_8124 (Array Int Int)) (v_ArrVal_8129 (Array Int Int)) (v_ArrVal_8127 (Array Int Int)) (v_ArrVal_8128 (Array Int Int))) (not (= (select (select (let ((.cse1 (+ (* 8 |c_ULTIMATE.start_main_~i~4#1|) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse4 (let ((.cse5 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8124))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8125)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8126)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8127)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8128)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8129))) |c_ULTIMATE.start_main_~argv~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~argv~0#1.offset|)) 0))) is different from false [2022-07-23 13:40:31,265 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8125 (Array Int Int)) (v_ArrVal_8126 (Array Int Int)) (v_ArrVal_8123 (Array Int Int)) (v_ArrVal_8124 (Array Int Int)) (v_ArrVal_8129 (Array Int Int)) (v_ArrVal_8127 (Array Int Int)) (v_ArrVal_8128 (Array Int Int))) (not (= (select (select (let ((.cse1 (+ (* 8 |c_ULTIMATE.start_main_~i~4#1|) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse4 (let ((.cse5 (let ((.cse6 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8123))) (store .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8124)))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8125)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8126)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8127)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8128)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8129))) |c_ULTIMATE.start_main_~argv~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~argv~0#1.offset|)) 0))) is different from false [2022-07-23 13:40:31,369 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8125 (Array Int Int)) (v_ArrVal_8126 (Array Int Int)) (v_ArrVal_8123 (Array Int Int)) (v_ArrVal_8124 (Array Int Int)) (v_ArrVal_8129 (Array Int Int)) (v_ArrVal_8127 (Array Int Int)) (v_ArrVal_8128 (Array Int Int)) (v_ArrVal_8122 (Array Int Int))) (not (= (select (select (let ((.cse1 (+ (* 8 |c_ULTIMATE.start_main_~i~4#1|) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse4 (let ((.cse5 (let ((.cse6 (let ((.cse7 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8122))) (store .cse7 (select (select .cse7 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8123)))) (store .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8124)))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8125)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8126)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8127)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8128)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8129))) |c_ULTIMATE.start_main_~argv~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~argv~0#1.offset|)) 0))) is different from false [2022-07-23 13:40:31,799 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8125 (Array Int Int)) (v_ArrVal_8126 (Array Int Int)) (v_ArrVal_8123 (Array Int Int)) (v_ArrVal_8124 (Array Int Int)) (v_ArrVal_8129 (Array Int Int)) (v_ArrVal_8127 (Array Int Int)) (v_ArrVal_8128 (Array Int Int)) (v_ArrVal_8121 (Array Int Int)) (v_ArrVal_8122 (Array Int Int))) (not (= (select (select (let ((.cse1 (+ (* 8 |c_ULTIMATE.start_main_~i~4#1|) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse4 (let ((.cse5 (let ((.cse6 (let ((.cse7 (let ((.cse8 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8121))) (store .cse8 (select (select .cse8 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8122)))) (store .cse7 (select (select .cse7 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8123)))) (store .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8124)))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8125)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8126)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8127)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8128)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8129))) |c_ULTIMATE.start_main_~argv~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~argv~0#1.offset|)) 0))) is different from false [2022-07-23 13:40:33,532 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8125 (Array Int Int)) (v_ArrVal_8126 (Array Int Int)) (v_ArrVal_8123 (Array Int Int)) (v_ArrVal_8124 (Array Int Int)) (v_ArrVal_8129 (Array Int Int)) (v_ArrVal_8127 (Array Int Int)) (v_ArrVal_8128 (Array Int Int)) (v_ArrVal_8121 (Array Int Int)) (v_ArrVal_8122 (Array Int Int)) (v_ArrVal_8120 (Array Int Int))) (not (= (select (select (let ((.cse1 (+ (* 8 |c_ULTIMATE.start_main_~i~4#1|) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (let ((.cse2 (let ((.cse3 (let ((.cse4 (let ((.cse5 (let ((.cse6 (let ((.cse7 (let ((.cse8 (let ((.cse9 (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8120))) (store .cse9 (select (select .cse9 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8121)))) (store .cse8 (select (select .cse8 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8122)))) (store .cse7 (select (select .cse7 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8123)))) (store .cse6 (select (select .cse6 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8124)))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8125)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8126)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8127)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8128)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse1) v_ArrVal_8129))) |c_ULTIMATE.start_main_~argv~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~argv~0#1.offset|)) 0))) is different from false [2022-07-23 13:40:33,553 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-23 13:40:33,553 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53247 treesize of output 28684