./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a31fd051 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cf06395da4b8f86107f4d086333b3a12be01d6e25ea5b5133d532da24fef3f46 --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 13:45:47,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 13:45:47,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 13:45:47,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 13:45:47,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 13:45:47,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 13:45:47,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 13:45:47,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 13:45:47,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 13:45:47,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 13:45:47,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 13:45:47,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 13:45:47,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 13:45:47,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 13:45:47,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 13:45:47,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 13:45:47,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 13:45:47,212 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 13:45:47,214 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 13:45:47,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 13:45:47,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 13:45:47,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 13:45:47,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 13:45:47,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 13:45:47,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 13:45:47,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 13:45:47,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 13:45:47,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 13:45:47,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 13:45:47,233 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 13:45:47,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 13:45:47,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 13:45:47,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 13:45:47,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 13:45:47,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 13:45:47,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 13:45:47,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 13:45:47,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 13:45:47,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 13:45:47,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 13:45:47,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 13:45:47,242 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-15 13:45:47,272 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 13:45:47,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 13:45:47,273 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 13:45:47,273 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 13:45:47,274 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 13:45:47,274 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 13:45:47,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 13:45:47,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 13:45:47,275 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 13:45:47,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 13:45:47,276 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 13:45:47,276 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 13:45:47,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 13:45:47,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 13:45:47,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 13:45:47,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 13:45:47,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 13:45:47,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 13:45:47,277 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 13:45:47,277 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 13:45:47,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 13:45:47,277 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 13:45:47,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 13:45:47,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 13:45:47,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 13:45:47,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 13:45:47,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:45:47,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 13:45:47,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 13:45:47,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 13:45:47,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 13:45:47,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 13:45:47,279 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 13:45:47,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 13:45:47,280 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 13:45:47,280 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 13:45:47,280 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 13:45:47,280 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf06395da4b8f86107f4d086333b3a12be01d6e25ea5b5133d532da24fef3f46 [2023-02-15 13:45:47,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 13:45:47,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 13:45:47,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 13:45:47,571 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 13:45:47,572 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 13:45:47,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i [2023-02-15 13:45:48,716 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 13:45:48,868 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 13:45:48,869 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i [2023-02-15 13:45:48,874 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d5a4b7aa/353c27b322de4d5984b359e2f056c510/FLAGca0169dbb [2023-02-15 13:45:48,891 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d5a4b7aa/353c27b322de4d5984b359e2f056c510 [2023-02-15 13:45:48,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 13:45:48,895 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 13:45:48,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 13:45:48,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 13:45:48,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 13:45:48,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:45:48" (1/1) ... [2023-02-15 13:45:48,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32dfd452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:45:48, skipping insertion in model container [2023-02-15 13:45:48,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:45:48" (1/1) ... [2023-02-15 13:45:48,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 13:45:48,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 13:45:49,084 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i[873,886] [2023-02-15 13:45:49,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:45:49,105 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 13:45:49,113 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark13_conjunctive.i[873,886] [2023-02-15 13:45:49,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 13:45:49,127 INFO L208 MainTranslator]: Completed translation [2023-02-15 13:45:49,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:45:49 WrapperNode [2023-02-15 13:45:49,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 13:45:49,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 13:45:49,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 13:45:49,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 13:45:49,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:45:49" (1/1) ... [2023-02-15 13:45:49,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:45:49" (1/1) ... [2023-02-15 13:45:49,151 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2023-02-15 13:45:49,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 13:45:49,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 13:45:49,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 13:45:49,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 13:45:49,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:45:49" (1/1) ... [2023-02-15 13:45:49,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:45:49" (1/1) ... [2023-02-15 13:45:49,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:45:49" (1/1) ... [2023-02-15 13:45:49,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:45:49" (1/1) ... [2023-02-15 13:45:49,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:45:49" (1/1) ... [2023-02-15 13:45:49,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:45:49" (1/1) ... [2023-02-15 13:45:49,167 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:45:49" (1/1) ... [2023-02-15 13:45:49,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:45:49" (1/1) ... [2023-02-15 13:45:49,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 13:45:49,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 13:45:49,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 13:45:49,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 13:45:49,172 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:45:49" (1/1) ... [2023-02-15 13:45:49,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 13:45:49,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:49,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 13:45:49,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 13:45:49,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 13:45:49,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 13:45:49,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 13:45:49,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 13:45:49,285 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 13:45:49,287 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 13:45:49,466 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 13:45:49,472 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 13:45:49,472 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 13:45:49,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:45:49 BoogieIcfgContainer [2023-02-15 13:45:49,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 13:45:49,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 13:45:49,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 13:45:49,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 13:45:49,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:45:48" (1/3) ... [2023-02-15 13:45:49,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14bbfb74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:45:49, skipping insertion in model container [2023-02-15 13:45:49,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:45:49" (2/3) ... [2023-02-15 13:45:49,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14bbfb74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:45:49, skipping insertion in model container [2023-02-15 13:45:49,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:45:49" (3/3) ... [2023-02-15 13:45:49,499 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark13_conjunctive.i [2023-02-15 13:45:49,531 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 13:45:49,531 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-15 13:45:49,595 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 13:45:49,614 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@48ca6dd3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 13:45:49,615 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-15 13:45:49,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 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) [2023-02-15 13:45:49,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 13:45:49,638 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:49,639 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 13:45:49,639 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 13:45:49,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:49,644 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2023-02-15 13:45:49,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:49,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633269915] [2023-02-15 13:45:49,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:49,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:49,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:49,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:49,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633269915] [2023-02-15 13:45:49,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633269915] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:45:49,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:45:49,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:45:49,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017190524] [2023-02-15 13:45:49,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:45:49,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:45:49,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:49,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:45:49,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:45:49,922 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:45:49,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:49,984 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2023-02-15 13:45:49,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 13:45:49,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-15 13:45:49,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:49,993 INFO L225 Difference]: With dead ends: 27 [2023-02-15 13:45:49,994 INFO L226 Difference]: Without dead ends: 11 [2023-02-15 13:45:49,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 13:45:50,001 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 15 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 30 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 [2023-02-15 13:45:50,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 30 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:45:50,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-02-15 13:45:50,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-02-15 13:45:50,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:45:50,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-02-15 13:45:50,031 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 5 [2023-02-15 13:45:50,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:50,031 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-02-15 13:45:50,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:45:50,032 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-02-15 13:45:50,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 13:45:50,032 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:50,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 13:45:50,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 13:45:50,033 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 13:45:50,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:50,034 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2023-02-15 13:45:50,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:50,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12112459] [2023-02-15 13:45:50,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:50,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:50,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:50,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:50,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12112459] [2023-02-15 13:45:50,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12112459] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:45:50,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:45:50,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 13:45:50,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717054406] [2023-02-15 13:45:50,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:45:50,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 13:45:50,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:50,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 13:45:50,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 13:45:50,098 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-02-15 13:45:50,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:50,116 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-02-15 13:45:50,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 13:45:50,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 6 [2023-02-15 13:45:50,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:50,117 INFO L225 Difference]: With dead ends: 15 [2023-02-15 13:45:50,117 INFO L226 Difference]: Without dead ends: 14 [2023-02-15 13:45:50,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 13:45:50,119 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:50,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 21 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:45:50,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-02-15 13:45:50,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-02-15 13:45:50,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:45:50,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-02-15 13:45:50,123 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 6 [2023-02-15 13:45:50,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:50,123 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-02-15 13:45:50,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2023-02-15 13:45:50,124 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-02-15 13:45:50,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 13:45:50,124 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:50,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:50,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 13:45:50,125 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 13:45:50,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:50,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2023-02-15 13:45:50,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:50,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353785639] [2023-02-15 13:45:50,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:50,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:50,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:50,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:50,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353785639] [2023-02-15 13:45:50,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353785639] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:45:50,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:45:50,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:45:50,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106017603] [2023-02-15 13:45:50,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:45:50,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:45:50,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:50,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:45:50,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:45:50,158 INFO L87 Difference]: Start difference. First operand 14 states and 14 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) [2023-02-15 13:45:50,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:50,165 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-02-15 13:45:50,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:45:50,166 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 [2023-02-15 13:45:50,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:50,166 INFO L225 Difference]: With dead ends: 14 [2023-02-15 13:45:50,166 INFO L226 Difference]: Without dead ends: 13 [2023-02-15 13:45:50,167 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 [2023-02-15 13:45:50,168 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:50,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:45:50,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-02-15 13:45:50,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-02-15 13:45:50,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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) [2023-02-15 13:45:50,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-02-15 13:45:50,172 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2023-02-15 13:45:50,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:50,172 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-02-15 13:45:50,173 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) [2023-02-15 13:45:50,173 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-02-15 13:45:50,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 13:45:50,173 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:50,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:50,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 13:45:50,181 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 13:45:50,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:50,182 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2023-02-15 13:45:50,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:50,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77884277] [2023-02-15 13:45:50,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:50,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:50,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:50,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:50,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77884277] [2023-02-15 13:45:50,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77884277] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 13:45:50,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 13:45:50,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 13:45:50,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341843119] [2023-02-15 13:45:50,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 13:45:50,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 13:45:50,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:50,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 13:45:50,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 13:45:50,227 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-02-15 13:45:50,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:50,244 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2023-02-15 13:45:50,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 13:45:50,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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 [2023-02-15 13:45:50,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:50,247 INFO L225 Difference]: With dead ends: 16 [2023-02-15 13:45:50,247 INFO L226 Difference]: Without dead ends: 15 [2023-02-15 13:45:50,247 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 [2023-02-15 13:45:50,256 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:50,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:45:50,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-15 13:45:50,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-02-15 13:45:50,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:45:50,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-02-15 13:45:50,263 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2023-02-15 13:45:50,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:50,263 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-02-15 13:45:50,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 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) [2023-02-15 13:45:50,264 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-02-15 13:45:50,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 13:45:50,264 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:50,265 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 13:45:50,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 13:45:50,265 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 13:45:50,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:50,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1472766433, now seen corresponding path program 1 times [2023-02-15 13:45:50,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:50,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833170708] [2023-02-15 13:45:50,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:50,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:50,336 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:50,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:50,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833170708] [2023-02-15 13:45:50,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833170708] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:50,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463554217] [2023-02-15 13:45:50,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:50,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:50,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:50,345 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:45:50,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 13:45:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:50,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 13:45:50,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:50,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:50,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:50,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:50,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463554217] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:50,486 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:50,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-02-15 13:45:50,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687489736] [2023-02-15 13:45:50,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:50,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-15 13:45:50,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:50,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-15 13:45:50,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-02-15 13:45:50,489 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:45:50,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:50,542 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2023-02-15 13:45:50,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 13:45:50,542 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-15 13:45:50,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:50,543 INFO L225 Difference]: With dead ends: 31 [2023-02-15 13:45:50,543 INFO L226 Difference]: Without dead ends: 30 [2023-02-15 13:45:50,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-02-15 13:45:50,545 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 17 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:50,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 29 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:45:50,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-15 13:45:50,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2023-02-15 13:45:50,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 27 states have internal predecessors, (30), 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) [2023-02-15 13:45:50,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2023-02-15 13:45:50,549 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 11 [2023-02-15 13:45:50,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:50,550 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2023-02-15 13:45:50,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:45:50,550 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2023-02-15 13:45:50,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-15 13:45:50,550 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:50,551 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-15 13:45:50,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 13:45:50,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:50,757 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 13:45:50,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:50,757 INFO L85 PathProgramCache]: Analyzing trace with hash -2010663901, now seen corresponding path program 1 times [2023-02-15 13:45:50,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:50,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65518595] [2023-02-15 13:45:50,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:50,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:50,807 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:50,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:50,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65518595] [2023-02-15 13:45:50,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65518595] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:50,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070690157] [2023-02-15 13:45:50,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:50,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:50,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:50,809 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:45:50,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 13:45:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:50,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 13:45:50,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:50,873 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:50,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:50,917 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:50,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070690157] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:50,918 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:50,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-15 13:45:50,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819186546] [2023-02-15 13:45:50,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:50,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 13:45:50,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:50,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 13:45:50,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 13:45:50,922 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:45:50,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:50,948 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2023-02-15 13:45:50,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 13:45:50,949 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), 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 13 [2023-02-15 13:45:50,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:50,951 INFO L225 Difference]: With dead ends: 31 [2023-02-15 13:45:50,951 INFO L226 Difference]: Without dead ends: 30 [2023-02-15 13:45:50,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 13:45:50,953 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:50,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:45:50,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-15 13:45:50,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-02-15 13:45:50,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 29 states have internal predecessors, (30), 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) [2023-02-15 13:45:50,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2023-02-15 13:45:50,963 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 13 [2023-02-15 13:45:50,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:50,963 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2023-02-15 13:45:50,963 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), 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) [2023-02-15 13:45:50,963 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2023-02-15 13:45:50,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-15 13:45:50,965 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:50,965 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1] [2023-02-15 13:45:50,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-15 13:45:51,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-02-15 13:45:51,171 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 13:45:51,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:51,171 INFO L85 PathProgramCache]: Analyzing trace with hash 924342317, now seen corresponding path program 2 times [2023-02-15 13:45:51,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:51,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131424608] [2023-02-15 13:45:51,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:51,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:51,391 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:51,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:51,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131424608] [2023-02-15 13:45:51,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131424608] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:51,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286162361] [2023-02-15 13:45:51,392 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 13:45:51,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:51,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:51,397 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:45:51,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 13:45:51,439 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 13:45:51,439 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:45:51,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-15 13:45:51,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:51,500 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:51,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:51,658 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:51,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286162361] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:51,659 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:51,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2023-02-15 13:45:51,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119682620] [2023-02-15 13:45:51,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:51,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-15 13:45:51,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:51,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-15 13:45:51,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2023-02-15 13:45:51,661 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 22 states, 21 states have (on average 2.380952380952381) internal successors, (50), 22 states have internal predecessors, (50), 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) [2023-02-15 13:45:51,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:51,812 INFO L93 Difference]: Finished difference Result 64 states and 69 transitions. [2023-02-15 13:45:51,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-15 13:45:51,813 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.380952380952381) internal successors, (50), 22 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-02-15 13:45:51,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:51,813 INFO L225 Difference]: With dead ends: 64 [2023-02-15 13:45:51,813 INFO L226 Difference]: Without dead ends: 63 [2023-02-15 13:45:51,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2023-02-15 13:45:51,815 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 52 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:51,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 56 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:45:51,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-15 13:45:51,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 58. [2023-02-15 13:45:51,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 56 states have (on average 1.125) internal successors, (63), 57 states have internal predecessors, (63), 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) [2023-02-15 13:45:51,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 63 transitions. [2023-02-15 13:45:51,821 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 63 transitions. Word has length 26 [2023-02-15 13:45:51,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:51,821 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 63 transitions. [2023-02-15 13:45:51,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.380952380952381) internal successors, (50), 22 states have internal predecessors, (50), 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) [2023-02-15 13:45:51,822 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 63 transitions. [2023-02-15 13:45:51,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-15 13:45:51,822 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:51,823 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1] [2023-02-15 13:45:51,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-15 13:45:52,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:52,030 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 13:45:52,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:52,030 INFO L85 PathProgramCache]: Analyzing trace with hash -765261969, now seen corresponding path program 2 times [2023-02-15 13:45:52,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:52,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64360652] [2023-02-15 13:45:52,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:52,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:52,096 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:52,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:52,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64360652] [2023-02-15 13:45:52,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64360652] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:52,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879811918] [2023-02-15 13:45:52,097 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 13:45:52,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:52,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:52,103 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:45:52,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 13:45:52,138 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 13:45:52,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:45:52,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 13:45:52,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:52,184 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:52,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:52,272 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:52,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879811918] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:52,272 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:52,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-15 13:45:52,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103850260] [2023-02-15 13:45:52,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:52,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 13:45:52,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:52,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 13:45:52,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 13:45:52,275 INFO L87 Difference]: Start difference. First operand 58 states and 63 transitions. Second operand has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 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) [2023-02-15 13:45:52,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:52,316 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2023-02-15 13:45:52,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 13:45:52,317 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 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 28 [2023-02-15 13:45:52,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:52,317 INFO L225 Difference]: With dead ends: 61 [2023-02-15 13:45:52,318 INFO L226 Difference]: Without dead ends: 60 [2023-02-15 13:45:52,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 13:45:52,318 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:52,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 13:45:52,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-02-15 13:45:52,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-02-15 13:45:52,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 58 states have (on average 1.0344827586206897) internal successors, (60), 59 states have internal predecessors, (60), 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) [2023-02-15 13:45:52,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2023-02-15 13:45:52,324 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 28 [2023-02-15 13:45:52,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:52,325 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2023-02-15 13:45:52,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 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) [2023-02-15 13:45:52,325 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2023-02-15 13:45:52,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-02-15 13:45:52,326 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:52,326 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1] [2023-02-15 13:45:52,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 13:45:52,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:52,535 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 13:45:52,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:52,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1183028819, now seen corresponding path program 3 times [2023-02-15 13:45:52,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:52,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389625999] [2023-02-15 13:45:52,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:52,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:52,971 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:52,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:52,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389625999] [2023-02-15 13:45:52,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389625999] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:52,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308405583] [2023-02-15 13:45:52,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 13:45:52,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:52,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:52,973 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:45:52,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 13:45:53,041 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-15 13:45:53,041 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:45:53,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 23 conjunts are in the unsatisfiable core [2023-02-15 13:45:53,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:53,138 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:53,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:53,669 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:53,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308405583] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:53,670 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:53,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2023-02-15 13:45:53,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848242492] [2023-02-15 13:45:53,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:53,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-02-15 13:45:53,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:53,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-02-15 13:45:53,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2023-02-15 13:45:53,680 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand has 46 states, 45 states have (on average 2.4444444444444446) internal successors, (110), 46 states have internal predecessors, (110), 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) [2023-02-15 13:45:54,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:54,138 INFO L93 Difference]: Finished difference Result 130 states and 141 transitions. [2023-02-15 13:45:54,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-02-15 13:45:54,139 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.4444444444444446) internal successors, (110), 46 states have internal predecessors, (110), 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 56 [2023-02-15 13:45:54,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:54,140 INFO L225 Difference]: With dead ends: 130 [2023-02-15 13:45:54,140 INFO L226 Difference]: Without dead ends: 129 [2023-02-15 13:45:54,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2023-02-15 13:45:54,142 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 122 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:54,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 94 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:45:54,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-02-15 13:45:54,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 118. [2023-02-15 13:45:54,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 116 states have (on average 1.1120689655172413) internal successors, (129), 117 states have internal predecessors, (129), 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) [2023-02-15 13:45:54,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 129 transitions. [2023-02-15 13:45:54,153 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 129 transitions. Word has length 56 [2023-02-15 13:45:54,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:54,153 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 129 transitions. [2023-02-15 13:45:54,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.4444444444444446) internal successors, (110), 46 states have internal predecessors, (110), 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) [2023-02-15 13:45:54,154 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 129 transitions. [2023-02-15 13:45:54,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-02-15 13:45:54,155 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:54,155 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 1, 1, 1, 1] [2023-02-15 13:45:54,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-15 13:45:54,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:54,360 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 13:45:54,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:54,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1275640047, now seen corresponding path program 3 times [2023-02-15 13:45:54,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:54,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817397412] [2023-02-15 13:45:54,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:54,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:54,511 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:54,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:54,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817397412] [2023-02-15 13:45:54,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817397412] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:54,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680491398] [2023-02-15 13:45:54,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 13:45:54,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:54,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:54,517 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:45:54,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 13:45:54,580 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-15 13:45:54,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:45:54,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 13:45:54,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:54,650 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:54,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:54,856 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:54,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680491398] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:54,857 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:54,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-15 13:45:54,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873264297] [2023-02-15 13:45:54,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:54,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 13:45:54,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:54,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 13:45:54,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-15 13:45:54,858 INFO L87 Difference]: Start difference. First operand 118 states and 129 transitions. Second operand has 24 states, 23 states have (on average 4.956521739130435) internal successors, (114), 24 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:45:54,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:54,927 INFO L93 Difference]: Finished difference Result 121 states and 132 transitions. [2023-02-15 13:45:54,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-15 13:45:54,927 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.956521739130435) internal successors, (114), 24 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2023-02-15 13:45:54,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:54,928 INFO L225 Difference]: With dead ends: 121 [2023-02-15 13:45:54,928 INFO L226 Difference]: Without dead ends: 120 [2023-02-15 13:45:54,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-15 13:45:54,929 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:54,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:45:54,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-02-15 13:45:54,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2023-02-15 13:45:54,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 118 states have (on average 1.0169491525423728) internal successors, (120), 119 states have internal predecessors, (120), 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) [2023-02-15 13:45:54,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 120 transitions. [2023-02-15 13:45:54,938 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 120 transitions. Word has length 58 [2023-02-15 13:45:54,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:54,939 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 120 transitions. [2023-02-15 13:45:54,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.956521739130435) internal successors, (114), 24 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:45:54,939 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 120 transitions. [2023-02-15 13:45:54,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-02-15 13:45:54,942 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:54,942 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1] [2023-02-15 13:45:54,952 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 13:45:55,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:55,150 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 13:45:55,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:45:55,150 INFO L85 PathProgramCache]: Analyzing trace with hash 493726893, now seen corresponding path program 4 times [2023-02-15 13:45:55,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:45:55,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412856100] [2023-02-15 13:45:55,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:45:55,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:45:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:45:56,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:56,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:45:56,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412856100] [2023-02-15 13:45:56,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412856100] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:45:56,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933406208] [2023-02-15 13:45:56,415 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 13:45:56,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:45:56,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:45:56,417 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:45:56,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 13:45:56,479 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 13:45:56,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:45:56,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 47 conjunts are in the unsatisfiable core [2023-02-15 13:45:56,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:45:56,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:56,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:45:58,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:45:58,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933406208] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:45:58,406 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:45:58,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2023-02-15 13:45:58,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272382310] [2023-02-15 13:45:58,406 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:45:58,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2023-02-15 13:45:58,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:45:58,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2023-02-15 13:45:58,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2023-02-15 13:45:58,411 INFO L87 Difference]: Start difference. First operand 120 states and 120 transitions. Second operand has 94 states, 93 states have (on average 2.4731182795698925) internal successors, (230), 94 states have internal predecessors, (230), 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) [2023-02-15 13:45:59,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:45:59,908 INFO L93 Difference]: Finished difference Result 262 states and 285 transitions. [2023-02-15 13:45:59,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2023-02-15 13:45:59,908 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 2.4731182795698925) internal successors, (230), 94 states have internal predecessors, (230), 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 116 [2023-02-15 13:45:59,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:45:59,910 INFO L225 Difference]: With dead ends: 262 [2023-02-15 13:45:59,910 INFO L226 Difference]: Without dead ends: 261 [2023-02-15 13:45:59,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2023-02-15 13:45:59,917 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 401 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 13:45:59,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 160 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 13:45:59,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-02-15 13:45:59,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 238. [2023-02-15 13:45:59,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 236 states have (on average 1.1059322033898304) internal successors, (261), 237 states have internal predecessors, (261), 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) [2023-02-15 13:45:59,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 261 transitions. [2023-02-15 13:45:59,930 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 261 transitions. Word has length 116 [2023-02-15 13:45:59,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:45:59,930 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 261 transitions. [2023-02-15 13:45:59,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 2.4731182795698925) internal successors, (230), 94 states have internal predecessors, (230), 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) [2023-02-15 13:45:59,931 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 261 transitions. [2023-02-15 13:45:59,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-02-15 13:45:59,932 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:45:59,932 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 1, 1, 1, 1] [2023-02-15 13:45:59,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-15 13:46:00,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:46:00,137 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 13:46:00,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:46:00,138 INFO L85 PathProgramCache]: Analyzing trace with hash 2025143279, now seen corresponding path program 4 times [2023-02-15 13:46:00,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:46:00,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969252282] [2023-02-15 13:46:00,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:46:00,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:46:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:46:00,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:46:00,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:46:00,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969252282] [2023-02-15 13:46:00,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969252282] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:46:00,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851863963] [2023-02-15 13:46:00,702 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 13:46:00,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:46:00,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:46:00,704 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:46:00,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 13:46:00,774 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 13:46:00,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:46:00,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-15 13:46:00,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:46:00,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:46:00,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:46:01,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:46:01,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851863963] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:46:01,604 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:46:01,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-15 13:46:01,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288602940] [2023-02-15 13:46:01,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:46:01,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-15 13:46:01,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:46:01,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-15 13:46:01,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 13:46:01,607 INFO L87 Difference]: Start difference. First operand 238 states and 261 transitions. Second operand has 48 states, 47 states have (on average 4.9787234042553195) internal successors, (234), 48 states have internal predecessors, (234), 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) [2023-02-15 13:46:01,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:46:01,723 INFO L93 Difference]: Finished difference Result 241 states and 264 transitions. [2023-02-15 13:46:01,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-15 13:46:01,724 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.9787234042553195) internal successors, (234), 48 states have internal predecessors, (234), 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 118 [2023-02-15 13:46:01,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:46:01,725 INFO L225 Difference]: With dead ends: 241 [2023-02-15 13:46:01,725 INFO L226 Difference]: Without dead ends: 240 [2023-02-15 13:46:01,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 13:46:01,727 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:46:01,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:46:01,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-02-15 13:46:01,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2023-02-15 13:46:01,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 238 states have (on average 1.0084033613445378) internal successors, (240), 239 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 13:46:01,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 240 transitions. [2023-02-15 13:46:01,738 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 240 transitions. Word has length 118 [2023-02-15 13:46:01,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:46:01,738 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 240 transitions. [2023-02-15 13:46:01,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.9787234042553195) internal successors, (234), 48 states have internal predecessors, (234), 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) [2023-02-15 13:46:01,739 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 240 transitions. [2023-02-15 13:46:01,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-02-15 13:46:01,741 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:46:01,742 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1] [2023-02-15 13:46:01,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-02-15 13:46:01,946 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,SelfDestructingSolverStorable11 [2023-02-15 13:46:01,947 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 13:46:01,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:46:01,947 INFO L85 PathProgramCache]: Analyzing trace with hash 982823597, now seen corresponding path program 5 times [2023-02-15 13:46:01,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:46:01,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20504507] [2023-02-15 13:46:01,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:46:01,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:46:02,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:46:05,910 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:46:05,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:46:05,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20504507] [2023-02-15 13:46:05,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20504507] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:46:05,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692960307] [2023-02-15 13:46:05,911 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 13:46:05,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:46:05,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:46:05,912 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:46:05,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 13:46:06,040 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-15 13:46:06,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:46:06,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 95 conjunts are in the unsatisfiable core [2023-02-15 13:46:06,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:46:06,357 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:46:06,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:46:12,227 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:46:12,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692960307] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:46:12,227 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:46:12,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2023-02-15 13:46:12,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409685232] [2023-02-15 13:46:12,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:46:12,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2023-02-15 13:46:12,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:46:12,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2023-02-15 13:46:12,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2023-02-15 13:46:12,236 INFO L87 Difference]: Start difference. First operand 240 states and 240 transitions. Second operand has 190 states, 189 states have (on average 2.486772486772487) internal successors, (470), 190 states have internal predecessors, (470), 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) [2023-02-15 13:46:17,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:46:17,434 INFO L93 Difference]: Finished difference Result 526 states and 573 transitions. [2023-02-15 13:46:17,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2023-02-15 13:46:17,435 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 2.486772486772487) internal successors, (470), 190 states have internal predecessors, (470), 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 236 [2023-02-15 13:46:17,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:46:17,437 INFO L225 Difference]: With dead ends: 526 [2023-02-15 13:46:17,437 INFO L226 Difference]: Without dead ends: 525 [2023-02-15 13:46:17,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17206 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=22608, Invalid=57764, Unknown=0, NotChecked=0, Total=80372 [2023-02-15 13:46:17,443 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 890 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 890 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 13:46:17,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [890 Valid, 295 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-15 13:46:17,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2023-02-15 13:46:17,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 478. [2023-02-15 13:46:17,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 476 states have (on average 1.1029411764705883) internal successors, (525), 477 states have internal predecessors, (525), 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) [2023-02-15 13:46:17,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 525 transitions. [2023-02-15 13:46:17,459 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 525 transitions. Word has length 236 [2023-02-15 13:46:17,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:46:17,459 INFO L495 AbstractCegarLoop]: Abstraction has 478 states and 525 transitions. [2023-02-15 13:46:17,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 2.486772486772487) internal successors, (470), 190 states have internal predecessors, (470), 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) [2023-02-15 13:46:17,460 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 525 transitions. [2023-02-15 13:46:17,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2023-02-15 13:46:17,462 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:46:17,462 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 46, 1, 1, 1, 1] [2023-02-15 13:46:17,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-15 13:46:17,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-02-15 13:46:17,668 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 13:46:17,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:46:17,668 INFO L85 PathProgramCache]: Analyzing trace with hash -399326737, now seen corresponding path program 5 times [2023-02-15 13:46:17,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:46:17,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719192943] [2023-02-15 13:46:17,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:46:17,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:46:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:46:19,129 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:46:19,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:46:19,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719192943] [2023-02-15 13:46:19,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719192943] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:46:19,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956823473] [2023-02-15 13:46:19,130 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 13:46:19,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:46:19,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:46:19,131 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:46:19,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 13:46:19,256 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-15 13:46:19,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:46:19,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-15 13:46:19,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:46:19,491 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:46:19,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:46:21,924 INFO L134 CoverageAnalysis]: Checked inductivity of 5405 backedges. 0 proven. 5405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:46:21,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956823473] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:46:21,924 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:46:21,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-15 13:46:21,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40062537] [2023-02-15 13:46:21,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:46:21,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-15 13:46:21,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:46:21,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-15 13:46:21,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-15 13:46:21,929 INFO L87 Difference]: Start difference. First operand 478 states and 525 transitions. Second operand has 96 states, 95 states have (on average 4.989473684210527) internal successors, (474), 96 states have internal predecessors, (474), 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) [2023-02-15 13:46:22,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:46:22,211 INFO L93 Difference]: Finished difference Result 481 states and 528 transitions. [2023-02-15 13:46:22,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-15 13:46:22,212 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.989473684210527) internal successors, (474), 96 states have internal predecessors, (474), 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 238 [2023-02-15 13:46:22,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:46:22,214 INFO L225 Difference]: With dead ends: 481 [2023-02-15 13:46:22,215 INFO L226 Difference]: Without dead ends: 480 [2023-02-15 13:46:22,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-15 13:46:22,216 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 13:46:22,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 310 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 13:46:22,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-02-15 13:46:22,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2023-02-15 13:46:22,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 478 states have (on average 1.00418410041841) internal successors, (480), 479 states have internal predecessors, (480), 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) [2023-02-15 13:46:22,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 480 transitions. [2023-02-15 13:46:22,228 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 480 transitions. Word has length 238 [2023-02-15 13:46:22,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:46:22,229 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 480 transitions. [2023-02-15 13:46:22,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.989473684210527) internal successors, (474), 96 states have internal predecessors, (474), 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) [2023-02-15 13:46:22,229 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 480 transitions. [2023-02-15 13:46:22,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2023-02-15 13:46:22,236 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:46:22,236 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 1, 1, 1, 1] [2023-02-15 13:46:22,241 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-15 13:46:22,441 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,SelfDestructingSolverStorable13 [2023-02-15 13:46:22,442 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 13:46:22,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:46:22,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1056226989, now seen corresponding path program 6 times [2023-02-15 13:46:22,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:46:22,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169749664] [2023-02-15 13:46:22,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:46:22,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:46:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:46:37,081 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:46:37,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:46:37,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169749664] [2023-02-15 13:46:37,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169749664] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:46:37,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528245986] [2023-02-15 13:46:37,085 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 13:46:37,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:46:37,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:46:37,089 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:46:37,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-15 13:46:37,369 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-15 13:46:37,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:46:37,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 191 conjunts are in the unsatisfiable core [2023-02-15 13:46:37,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:46:37,898 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:46:37,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:47:00,298 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:47:00,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528245986] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:47:00,298 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:47:00,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 191] total 381 [2023-02-15 13:47:00,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540417296] [2023-02-15 13:47:00,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:47:00,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2023-02-15 13:47:00,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:47:00,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2023-02-15 13:47:00,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36671, Invalid=108871, Unknown=0, NotChecked=0, Total=145542 [2023-02-15 13:47:00,319 INFO L87 Difference]: Start difference. First operand 480 states and 480 transitions. Second operand has 382 states, 381 states have (on average 2.493438320209974) internal successors, (950), 382 states have internal predecessors, (950), 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) [2023-02-15 13:47:23,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:47:23,999 INFO L93 Difference]: Finished difference Result 1054 states and 1149 transitions. [2023-02-15 13:47:24,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2023-02-15 13:47:24,000 INFO L78 Accepts]: Start accepts. Automaton has has 382 states, 381 states have (on average 2.493438320209974) internal successors, (950), 382 states have internal predecessors, (950), 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 476 [2023-02-15 13:47:24,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:47:24,004 INFO L225 Difference]: With dead ends: 1054 [2023-02-15 13:47:24,004 INFO L226 Difference]: Without dead ends: 1053 [2023-02-15 13:47:24,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1331 GetRequests, 761 SyntacticMatches, 0 SemanticMatches, 570 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71254 ImplicationChecksByTransitivity, 45.7s TimeCoverageRelationStatistics Valid=91296, Invalid=235316, Unknown=0, NotChecked=0, Total=326612 [2023-02-15 13:47:24,018 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 2016 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2016 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-15 13:47:24,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2016 Valid, 527 Invalid, 974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 973 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-15 13:47:24,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1053 states. [2023-02-15 13:47:24,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1053 to 958. [2023-02-15 13:47:24,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 956 states have (on average 1.1014644351464435) internal successors, (1053), 957 states have internal predecessors, (1053), 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) [2023-02-15 13:47:24,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1053 transitions. [2023-02-15 13:47:24,042 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1053 transitions. Word has length 476 [2023-02-15 13:47:24,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:47:24,043 INFO L495 AbstractCegarLoop]: Abstraction has 958 states and 1053 transitions. [2023-02-15 13:47:24,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 381 states have (on average 2.493438320209974) internal successors, (950), 382 states have internal predecessors, (950), 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) [2023-02-15 13:47:24,044 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1053 transitions. [2023-02-15 13:47:24,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2023-02-15 13:47:24,049 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:47:24,050 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 94, 1, 1, 1, 1] [2023-02-15 13:47:24,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-15 13:47:24,256 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,SelfDestructingSolverStorable14 [2023-02-15 13:47:24,256 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 13:47:24,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:47:24,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1421856239, now seen corresponding path program 6 times [2023-02-15 13:47:24,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:47:24,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885300539] [2023-02-15 13:47:24,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:47:24,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:47:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:47:29,303 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:47:29,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:47:29,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885300539] [2023-02-15 13:47:29,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885300539] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:47:29,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818295111] [2023-02-15 13:47:29,305 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 13:47:29,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:47:29,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:47:29,313 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:47:29,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-15 13:47:29,580 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-15 13:47:29,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 13:47:29,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-15 13:47:29,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:47:30,077 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:47:30,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 13:47:38,746 INFO L134 CoverageAnalysis]: Checked inductivity of 22325 backedges. 0 proven. 22325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:47:38,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818295111] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 13:47:38,746 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 13:47:38,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-15 13:47:38,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154488565] [2023-02-15 13:47:38,746 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 13:47:38,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-15 13:47:38,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 13:47:38,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-15 13:47:38,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-15 13:47:38,757 INFO L87 Difference]: Start difference. First operand 958 states and 1053 transitions. Second operand has 192 states, 191 states have (on average 4.994764397905759) internal successors, (954), 192 states have internal predecessors, (954), 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) [2023-02-15 13:47:39,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 13:47:39,846 INFO L93 Difference]: Finished difference Result 961 states and 1056 transitions. [2023-02-15 13:47:39,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-15 13:47:39,847 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 4.994764397905759) internal successors, (954), 192 states have internal predecessors, (954), 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 478 [2023-02-15 13:47:39,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 13:47:39,851 INFO L225 Difference]: With dead ends: 961 [2023-02-15 13:47:39,851 INFO L226 Difference]: Without dead ends: 960 [2023-02-15 13:47:39,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1050 GetRequests, 860 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-15 13:47:39,854 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 13:47:39,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 590 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 13:47:39,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2023-02-15 13:47:39,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 960. [2023-02-15 13:47:39,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 958 states have (on average 1.0020876826722338) internal successors, (960), 959 states have internal predecessors, (960), 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) [2023-02-15 13:47:39,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 960 transitions. [2023-02-15 13:47:39,882 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 960 transitions. Word has length 478 [2023-02-15 13:47:39,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 13:47:39,883 INFO L495 AbstractCegarLoop]: Abstraction has 960 states and 960 transitions. [2023-02-15 13:47:39,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 4.994764397905759) internal successors, (954), 192 states have internal predecessors, (954), 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) [2023-02-15 13:47:39,884 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 960 transitions. [2023-02-15 13:47:39,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 957 [2023-02-15 13:47:39,894 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 13:47:39,894 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 1, 1, 1, 1] [2023-02-15 13:47:39,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-15 13:47:40,100 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,SelfDestructingSolverStorable15 [2023-02-15 13:47:40,101 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 13:47:40,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 13:47:40,101 INFO L85 PathProgramCache]: Analyzing trace with hash 402445997, now seen corresponding path program 7 times [2023-02-15 13:47:40,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 13:47:40,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512908868] [2023-02-15 13:47:40,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 13:47:40,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 13:47:40,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:48:46,839 INFO L134 CoverageAnalysis]: Checked inductivity of 90345 backedges. 0 proven. 90345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:48:46,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 13:48:46,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512908868] [2023-02-15 13:48:46,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512908868] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 13:48:46,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207170774] [2023-02-15 13:48:46,840 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-15 13:48:46,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 13:48:46,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 13:48:46,842 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 13:48:46,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-15 13:48:47,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 13:48:47,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 2126 conjuncts, 383 conjunts are in the unsatisfiable core [2023-02-15 13:48:47,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 13:48:48,170 INFO L134 CoverageAnalysis]: Checked inductivity of 90345 backedges. 0 proven. 90345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 13:48:48,170 INFO L328 TraceCheckSpWp]: Computing backward predicates...