./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark38_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e8d55036 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/benchmark38_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 366d45071e2a444aa552f231e24508af3eb704e415c6b738128a0398e54b53a7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 22:50:17,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 22:50:17,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 22:50:17,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 22:50:17,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 22:50:17,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 22:50:17,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 22:50:17,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 22:50:17,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 22:50:17,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 22:50:17,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 22:50:17,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 22:50:17,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 22:50:17,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 22:50:17,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 22:50:17,208 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 22:50:17,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 22:50:17,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 22:50:17,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 22:50:17,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 22:50:17,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 22:50:17,213 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 22:50:17,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 22:50:17,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 22:50:17,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 22:50:17,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 22:50:17,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 22:50:17,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 22:50:17,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 22:50:17,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 22:50:17,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 22:50:17,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 22:50:17,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 22:50:17,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 22:50:17,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 22:50:17,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 22:50:17,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 22:50:17,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 22:50:17,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 22:50:17,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 22:50:17,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 22:50:17,223 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-15 22:50:17,235 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 22:50:17,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 22:50:17,236 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 22:50:17,236 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 22:50:17,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 22:50:17,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 22:50:17,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 22:50:17,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 22:50:17,237 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 22:50:17,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 22:50:17,238 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 22:50:17,238 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 22:50:17,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 22:50:17,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 22:50:17,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 22:50:17,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 22:50:17,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 22:50:17,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 22:50:17,239 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 22:50:17,239 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 22:50:17,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 22:50:17,239 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 22:50:17,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 22:50:17,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 22:50:17,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 22:50:17,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 22:50:17,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:50:17,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 22:50:17,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 22:50:17,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 22:50:17,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 22:50:17,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 22:50:17,241 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 22:50:17,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 22:50:17,241 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 22:50:17,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 22:50:17,241 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 22:50:17,241 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 366d45071e2a444aa552f231e24508af3eb704e415c6b738128a0398e54b53a7 [2023-02-15 22:50:17,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 22:50:17,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 22:50:17,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 22:50:17,398 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 22:50:17,398 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 22:50:17,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark38_conjunctive.i [2023-02-15 22:50:18,368 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 22:50:18,566 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 22:50:18,567 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark38_conjunctive.i [2023-02-15 22:50:18,571 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/546ffa2f5/618cdd6282784020af52992361718e12/FLAG30096997e [2023-02-15 22:50:18,580 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/546ffa2f5/618cdd6282784020af52992361718e12 [2023-02-15 22:50:18,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 22:50:18,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 22:50:18,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 22:50:18,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 22:50:18,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 22:50:18,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:50:18" (1/1) ... [2023-02-15 22:50:18,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@189ba5ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:50:18, skipping insertion in model container [2023-02-15 22:50:18,589 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:50:18" (1/1) ... [2023-02-15 22:50:18,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 22:50:18,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 22:50:18,707 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/benchmark38_conjunctive.i[873,886] [2023-02-15 22:50:18,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:50:18,720 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 22:50:18,727 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/benchmark38_conjunctive.i[873,886] [2023-02-15 22:50:18,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:50:18,736 INFO L208 MainTranslator]: Completed translation [2023-02-15 22:50:18,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:50:18 WrapperNode [2023-02-15 22:50:18,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 22:50:18,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 22:50:18,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 22:50:18,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 22:50:18,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:50:18" (1/1) ... [2023-02-15 22:50:18,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:50:18" (1/1) ... [2023-02-15 22:50:18,754 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2023-02-15 22:50:18,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 22:50:18,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 22:50:18,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 22:50:18,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 22:50:18,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:50:18" (1/1) ... [2023-02-15 22:50:18,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:50:18" (1/1) ... [2023-02-15 22:50:18,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:50:18" (1/1) ... [2023-02-15 22:50:18,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:50:18" (1/1) ... [2023-02-15 22:50:18,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:50:18" (1/1) ... [2023-02-15 22:50:18,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:50:18" (1/1) ... [2023-02-15 22:50:18,764 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:50:18" (1/1) ... [2023-02-15 22:50:18,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:50:18" (1/1) ... [2023-02-15 22:50:18,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 22:50:18,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 22:50:18,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 22:50:18,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 22:50:18,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:50:18" (1/1) ... [2023-02-15 22:50:18,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:50:18,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:50:18,787 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 22:50:18,798 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 22:50:18,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 22:50:18,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 22:50:18,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 22:50:18,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 22:50:18,856 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 22:50:18,857 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 22:50:18,934 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 22:50:18,938 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 22:50:18,938 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 22:50:18,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:50:18 BoogieIcfgContainer [2023-02-15 22:50:18,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 22:50:18,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 22:50:18,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 22:50:18,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 22:50:18,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 10:50:18" (1/3) ... [2023-02-15 22:50:18,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729cd147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:50:18, skipping insertion in model container [2023-02-15 22:50:18,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:50:18" (2/3) ... [2023-02-15 22:50:18,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729cd147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:50:18, skipping insertion in model container [2023-02-15 22:50:18,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:50:18" (3/3) ... [2023-02-15 22:50:18,947 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark38_conjunctive.i [2023-02-15 22:50:18,974 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 22:50:18,984 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-15 22:50:19,026 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 22:50:19,053 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;@3ab4fc63, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 22:50:19,053 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-15 22:50:19,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 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 22:50:19,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 22:50:19,060 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:19,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 22:50:19,061 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:19,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:19,072 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2023-02-15 22:50:19,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:19,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700513164] [2023-02-15 22:50:19,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:19,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:19,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:19,236 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 22:50:19,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:19,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700513164] [2023-02-15 22:50:19,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700513164] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:50:19,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:50:19,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:50:19,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319324810] [2023-02-15 22:50:19,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:50:19,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:50:19,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:19,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:50:19,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:50:19,284 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 22:50:19,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:19,305 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2023-02-15 22:50:19,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:50:19,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 22:50:19,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:19,312 INFO L225 Difference]: With dead ends: 30 [2023-02-15 22:50:19,312 INFO L226 Difference]: Without dead ends: 15 [2023-02-15 22:50:19,313 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 22:50:19,316 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:50:19,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 16 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:50:19,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-15 22:50:19,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-02-15 22:50:19,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.5) 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 22:50:19,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-02-15 22:50:19,334 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 5 [2023-02-15 22:50:19,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:19,335 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-02-15 22:50:19,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 22:50:19,335 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-02-15 22:50:19,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 22:50:19,335 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:19,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 22:50:19,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 22:50:19,336 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:19,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:19,337 INFO L85 PathProgramCache]: Analyzing trace with hash 28695922, now seen corresponding path program 1 times [2023-02-15 22:50:19,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:19,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310226293] [2023-02-15 22:50:19,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:19,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:19,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:19,363 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 22:50:19,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:19,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310226293] [2023-02-15 22:50:19,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310226293] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:50:19,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:50:19,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:50:19,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570963951] [2023-02-15 22:50:19,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:50:19,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:50:19,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:19,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:50:19,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:50:19,366 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 22:50:19,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:19,378 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2023-02-15 22:50:19,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:50:19,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 22:50:19,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:19,379 INFO L225 Difference]: With dead ends: 26 [2023-02-15 22:50:19,379 INFO L226 Difference]: Without dead ends: 25 [2023-02-15 22:50:19,379 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 22:50:19,380 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:50:19,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 20 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:50:19,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-15 22:50:19,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2023-02-15 22:50:19,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.5) internal successors, (18), 16 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:50:19,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2023-02-15 22:50:19,387 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 5 [2023-02-15 22:50:19,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:19,387 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2023-02-15 22:50:19,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 22:50:19,387 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2023-02-15 22:50:19,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 22:50:19,388 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:19,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 22:50:19,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 22:50:19,388 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:19,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:19,389 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2023-02-15 22:50:19,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:19,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692224237] [2023-02-15 22:50:19,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:19,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:19,416 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 22:50:19,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:19,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692224237] [2023-02-15 22:50:19,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692224237] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:50:19,417 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:50:19,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:50:19,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066928336] [2023-02-15 22:50:19,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:50:19,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:50:19,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:19,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:50:19,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:50:19,418 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 22:50:19,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:19,428 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2023-02-15 22:50:19,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:50:19,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 22:50:19,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:19,429 INFO L225 Difference]: With dead ends: 22 [2023-02-15 22:50:19,430 INFO L226 Difference]: Without dead ends: 21 [2023-02-15 22:50:19,430 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 22:50:19,431 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 3 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 23 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 22:50:19,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 23 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:50:19,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-02-15 22:50:19,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2023-02-15 22:50:19,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 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 22:50:19,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2023-02-15 22:50:19,434 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 6 [2023-02-15 22:50:19,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:19,434 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2023-02-15 22:50:19,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 22:50:19,435 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2023-02-15 22:50:19,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 22:50:19,435 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:19,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 22:50:19,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 22:50:19,436 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:19,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:19,436 INFO L85 PathProgramCache]: Analyzing trace with hash 889573643, now seen corresponding path program 1 times [2023-02-15 22:50:19,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:19,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558532810] [2023-02-15 22:50:19,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:19,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:19,488 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 22:50:19,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:19,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558532810] [2023-02-15 22:50:19,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558532810] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:50:19,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:50:19,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:50:19,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197009927] [2023-02-15 22:50:19,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:50:19,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:50:19,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:19,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:50:19,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:50:19,491 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 22:50:19,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:19,509 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2023-02-15 22:50:19,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:50:19,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 22:50:19,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:19,510 INFO L225 Difference]: With dead ends: 25 [2023-02-15 22:50:19,510 INFO L226 Difference]: Without dead ends: 22 [2023-02-15 22:50:19,510 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 22:50:19,511 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 6 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:50:19,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 21 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:50:19,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-15 22:50:19,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2023-02-15 22:50:19,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:50:19,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-02-15 22:50:19,514 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 6 [2023-02-15 22:50:19,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:19,515 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2023-02-15 22:50:19,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 22:50:19,515 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-02-15 22:50:19,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 22:50:19,515 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:19,516 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:50:19,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 22:50:19,516 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:19,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:19,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2023-02-15 22:50:19,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:19,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044253444] [2023-02-15 22:50:19,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:19,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:19,544 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 22:50:19,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:19,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044253444] [2023-02-15 22:50:19,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044253444] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:50:19,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:50:19,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 22:50:19,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027290160] [2023-02-15 22:50:19,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:50:19,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:50:19,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:19,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:50:19,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:50:19,547 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:50:19,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:19,565 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2023-02-15 22:50:19,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:50:19,566 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-15 22:50:19,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:19,568 INFO L225 Difference]: With dead ends: 18 [2023-02-15 22:50:19,568 INFO L226 Difference]: Without dead ends: 16 [2023-02-15 22:50:19,569 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 22:50:19,572 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 9 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:50:19,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 14 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:50:19,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-02-15 22:50:19,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-02-15 22:50:19,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:50:19,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-02-15 22:50:19,583 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2023-02-15 22:50:19,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:19,584 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-02-15 22:50:19,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:50:19,584 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-02-15 22:50:19,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 22:50:19,584 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:19,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:50:19,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 22:50:19,585 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:19,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:19,585 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2023-02-15 22:50:19,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:19,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292435971] [2023-02-15 22:50:19,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:19,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:19,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:19,616 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 22:50:19,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:19,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292435971] [2023-02-15 22:50:19,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292435971] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:50:19,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:50:19,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 22:50:19,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74528871] [2023-02-15 22:50:19,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:50:19,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:50:19,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:19,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:50:19,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:50:19,620 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:50:19,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:19,649 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2023-02-15 22:50:19,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:50:19,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 22:50:19,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:19,650 INFO L225 Difference]: With dead ends: 19 [2023-02-15 22:50:19,650 INFO L226 Difference]: Without dead ends: 18 [2023-02-15 22:50:19,650 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 22:50:19,651 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:50:19,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 25 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:50:19,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-15 22:50:19,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-02-15 22:50:19,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.2) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:50:19,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-02-15 22:50:19,654 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 8 [2023-02-15 22:50:19,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:19,654 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2023-02-15 22:50:19,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:50:19,654 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-02-15 22:50:19,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 22:50:19,655 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:19,655 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:50:19,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 22:50:19,655 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:19,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:19,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1472766433, now seen corresponding path program 1 times [2023-02-15 22:50:19,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:19,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484009403] [2023-02-15 22:50:19,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:19,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:19,707 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 22:50:19,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:19,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484009403] [2023-02-15 22:50:19,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484009403] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:50:19,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909206475] [2023-02-15 22:50:19,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:19,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:19,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:50:19,723 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 22:50:19,756 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 22:50:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:19,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 22:50:19,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:50:19,797 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 22:50:19,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:50:19,820 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 22:50:19,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909206475] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:50:19,821 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:50:19,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-15 22:50:19,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450966704] [2023-02-15 22:50:19,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:50:19,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 22:50:19,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:19,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 22:50:19,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 22:50:19,823 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 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 22:50:19,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:19,837 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2023-02-15 22:50:19,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:50:19,838 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 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 22:50:19,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:19,838 INFO L225 Difference]: With dead ends: 43 [2023-02-15 22:50:19,838 INFO L226 Difference]: Without dead ends: 42 [2023-02-15 22:50:19,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 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 22:50:19,839 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 16 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 41 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 22:50:19,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 41 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:50:19,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-15 22:50:19,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 31. [2023-02-15 22:50:19,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 30 states have internal predecessors, (36), 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 22:50:19,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2023-02-15 22:50:19,843 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 11 [2023-02-15 22:50:19,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:19,844 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2023-02-15 22:50:19,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 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 22:50:19,844 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2023-02-15 22:50:19,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 22:50:19,844 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:19,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:50:19,852 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 22:50:20,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:20,050 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:20,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:20,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1472764863, now seen corresponding path program 1 times [2023-02-15 22:50:20,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:20,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833845121] [2023-02-15 22:50:20,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:20,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:20,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:20,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:20,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833845121] [2023-02-15 22:50:20,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833845121] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:50:20,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558639658] [2023-02-15 22:50:20,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:20,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:20,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:50:20,102 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 22:50:20,123 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 22:50:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:20,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 22:50:20,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:50:20,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:20,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:50:20,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:20,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558639658] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:50:20,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:50:20,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-02-15 22:50:20,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836265740] [2023-02-15 22:50:20,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:50:20,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 22:50:20,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:20,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 22:50:20,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-02-15 22:50:20,205 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 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 22:50:20,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:20,233 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2023-02-15 22:50:20,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 22:50:20,234 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 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 22:50:20,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:20,234 INFO L225 Difference]: With dead ends: 38 [2023-02-15 22:50:20,234 INFO L226 Difference]: Without dead ends: 32 [2023-02-15 22:50:20,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-02-15 22:50:20,235 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 15 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 37 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 22:50:20,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 37 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:50:20,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-15 22:50:20,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2023-02-15 22:50:20,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:50:20,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2023-02-15 22:50:20,239 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 11 [2023-02-15 22:50:20,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:20,239 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2023-02-15 22:50:20,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 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 22:50:20,239 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2023-02-15 22:50:20,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-15 22:50:20,240 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:20,240 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1] [2023-02-15 22:50:20,255 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 22:50:20,445 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,SelfDestructingSolverStorable7 [2023-02-15 22:50:20,445 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:20,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:20,446 INFO L85 PathProgramCache]: Analyzing trace with hash -555665681, now seen corresponding path program 1 times [2023-02-15 22:50:20,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:20,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791936762] [2023-02-15 22:50:20,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:20,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:20,553 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:20,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:20,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791936762] [2023-02-15 22:50:20,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791936762] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:50:20,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594292977] [2023-02-15 22:50:20,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:20,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:20,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:50:20,555 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 22:50:20,557 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 22:50:20,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:20,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 22:50:20,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:50:20,618 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:20,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:50:20,690 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:20,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594292977] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:50:20,690 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:50:20,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-02-15 22:50:20,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465759773] [2023-02-15 22:50:20,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:50:20,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-15 22:50:20,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:20,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-15 22:50:20,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-02-15 22:50:20,693 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:50:20,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:20,770 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2023-02-15 22:50:20,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-15 22:50:20,770 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-15 22:50:20,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:20,771 INFO L225 Difference]: With dead ends: 55 [2023-02-15 22:50:20,771 INFO L226 Difference]: Without dead ends: 54 [2023-02-15 22:50:20,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2023-02-15 22:50:20,772 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 33 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:50:20,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 48 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:50:20,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-02-15 22:50:20,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 43. [2023-02-15 22:50:20,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 40 states have (on average 1.2) internal successors, (48), 42 states have internal predecessors, (48), 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 22:50:20,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2023-02-15 22:50:20,776 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 18 [2023-02-15 22:50:20,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:20,776 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2023-02-15 22:50:20,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:50:20,776 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2023-02-15 22:50:20,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 22:50:20,777 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:20,777 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2023-02-15 22:50:20,794 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 22:50:20,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:20,994 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:20,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:20,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1032299713, now seen corresponding path program 2 times [2023-02-15 22:50:20,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:20,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491250935] [2023-02-15 22:50:20,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:20,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:21,082 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:21,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:21,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491250935] [2023-02-15 22:50:21,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491250935] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:50:21,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223045404] [2023-02-15 22:50:21,083 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:50:21,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:21,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:50:21,084 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 22:50:21,087 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 22:50:21,143 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 22:50:21,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:50:21,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-15 22:50:21,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:50:21,178 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:21,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:50:21,250 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:21,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223045404] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:50:21,250 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:50:21,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2023-02-15 22:50:21,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784495024] [2023-02-15 22:50:21,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:50:21,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-15 22:50:21,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:21,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-15 22:50:21,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-02-15 22:50:21,255 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:50:21,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:21,332 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions. [2023-02-15 22:50:21,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-15 22:50:21,334 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-02-15 22:50:21,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:21,336 INFO L225 Difference]: With dead ends: 61 [2023-02-15 22:50:21,336 INFO L226 Difference]: Without dead ends: 52 [2023-02-15 22:50:21,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2023-02-15 22:50:21,337 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 38 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:50:21,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 56 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:50:21,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-02-15 22:50:21,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2023-02-15 22:50:21,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 43 states have internal predecessors, (46), 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 22:50:21,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2023-02-15 22:50:21,351 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 21 [2023-02-15 22:50:21,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:21,351 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2023-02-15 22:50:21,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:50:21,351 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2023-02-15 22:50:21,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-15 22:50:21,352 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:21,352 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1] [2023-02-15 22:50:21,373 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 22:50:21,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:21,557 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:21,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:21,558 INFO L85 PathProgramCache]: Analyzing trace with hash 924342317, now seen corresponding path program 2 times [2023-02-15 22:50:21,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:21,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463843237] [2023-02-15 22:50:21,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:21,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:21,602 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 22:50:21,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:21,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463843237] [2023-02-15 22:50:21,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463843237] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:50:21,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269787716] [2023-02-15 22:50:21,603 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:50:21,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:21,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:50:21,607 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 22:50:21,609 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 22:50:21,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 22:50:21,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:50:21,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 22:50:21,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:50:21,699 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 22:50:21,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:50:21,749 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 22:50:21,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269787716] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:50:21,750 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:50:21,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-15 22:50:21,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545190439] [2023-02-15 22:50:21,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:50:21,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 22:50:21,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:21,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 22:50:21,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 22:50:21,751 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 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 22:50:21,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:21,772 INFO L93 Difference]: Finished difference Result 74 states and 79 transitions. [2023-02-15 22:50:21,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 22:50:21,772 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 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 22:50:21,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:21,773 INFO L225 Difference]: With dead ends: 74 [2023-02-15 22:50:21,773 INFO L226 Difference]: Without dead ends: 73 [2023-02-15 22:50:21,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 22:50:21,774 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 22 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:50:21,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 70 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:50:21,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-02-15 22:50:21,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 61. [2023-02-15 22:50:21,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 58 states have (on average 1.1551724137931034) internal successors, (67), 60 states have internal predecessors, (67), 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 22:50:21,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2023-02-15 22:50:21,778 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 26 [2023-02-15 22:50:21,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:21,778 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2023-02-15 22:50:21,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 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 22:50:21,778 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2023-02-15 22:50:21,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-02-15 22:50:21,795 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:21,796 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 1, 1, 1, 1] [2023-02-15 22:50:21,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 22:50:22,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-02-15 22:50:22,001 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:22,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:22,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1547319279, now seen corresponding path program 2 times [2023-02-15 22:50:22,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:22,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285602037] [2023-02-15 22:50:22,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:22,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:22,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:22,147 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:22,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:22,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285602037] [2023-02-15 22:50:22,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285602037] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:50:22,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354952698] [2023-02-15 22:50:22,148 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:50:22,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:22,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:50:22,165 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 22:50:22,166 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 22:50:22,211 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 22:50:22,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:50:22,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-15 22:50:22,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:50:22,252 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:22,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:50:22,464 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:22,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354952698] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:50:22,465 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:50:22,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 29 [2023-02-15 22:50:22,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22806504] [2023-02-15 22:50:22,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:50:22,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-02-15 22:50:22,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:22,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-02-15 22:50:22,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2023-02-15 22:50:22,467 INFO L87 Difference]: Start difference. First operand 61 states and 67 transitions. Second operand has 30 states, 29 states have (on average 2.5517241379310347) internal successors, (74), 30 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:50:22,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:22,678 INFO L93 Difference]: Finished difference Result 109 states and 116 transitions. [2023-02-15 22:50:22,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-02-15 22:50:22,679 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 2.5517241379310347) internal successors, (74), 30 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2023-02-15 22:50:22,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:22,679 INFO L225 Difference]: With dead ends: 109 [2023-02-15 22:50:22,679 INFO L226 Difference]: Without dead ends: 108 [2023-02-15 22:50:22,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=568, Invalid=1324, Unknown=0, NotChecked=0, Total=1892 [2023-02-15 22:50:22,680 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 114 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:50:22,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 86 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:50:22,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-02-15 22:50:22,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 83. [2023-02-15 22:50:22,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 80 states have (on average 1.175) internal successors, (94), 82 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:50:22,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 94 transitions. [2023-02-15 22:50:22,688 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 94 transitions. Word has length 38 [2023-02-15 22:50:22,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:22,688 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 94 transitions. [2023-02-15 22:50:22,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 2.5517241379310347) internal successors, (74), 30 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:50:22,689 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 94 transitions. [2023-02-15 22:50:22,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-02-15 22:50:22,691 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:22,691 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1] [2023-02-15 22:50:22,717 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 22:50:22,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:22,920 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:22,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:22,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1695303105, now seen corresponding path program 3 times [2023-02-15 22:50:22,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:22,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626773242] [2023-02-15 22:50:22,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:22,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:23,115 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:23,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:23,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626773242] [2023-02-15 22:50:23,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626773242] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:50:23,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315733316] [2023-02-15 22:50:23,116 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 22:50:23,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:23,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:50:23,134 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 22:50:23,135 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 22:50:23,167 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-02-15 22:50:23,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:50:23,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-15 22:50:23,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:50:23,211 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:23,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:50:23,436 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:23,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315733316] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:50:23,436 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:50:23,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2023-02-15 22:50:23,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367798844] [2023-02-15 22:50:23,437 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:50:23,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-02-15 22:50:23,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:23,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-02-15 22:50:23,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2023-02-15 22:50:23,439 INFO L87 Difference]: Start difference. First operand 83 states and 94 transitions. Second operand has 32 states, 31 states have (on average 2.5806451612903225) internal successors, (80), 32 states have internal predecessors, (80), 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 22:50:23,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:23,634 INFO L93 Difference]: Finished difference Result 111 states and 118 transitions. [2023-02-15 22:50:23,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-02-15 22:50:23,634 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.5806451612903225) internal successors, (80), 32 states have internal predecessors, (80), 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 41 [2023-02-15 22:50:23,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:23,635 INFO L225 Difference]: With dead ends: 111 [2023-02-15 22:50:23,635 INFO L226 Difference]: Without dead ends: 94 [2023-02-15 22:50:23,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=623, Invalid=1447, Unknown=0, NotChecked=0, Total=2070 [2023-02-15 22:50:23,636 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 114 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:50:23,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 107 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:50:23,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-02-15 22:50:23,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 84. [2023-02-15 22:50:23,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 81 states have (on average 1.0864197530864197) internal successors, (88), 83 states have internal predecessors, (88), 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 22:50:23,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2023-02-15 22:50:23,640 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 41 [2023-02-15 22:50:23,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:23,640 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2023-02-15 22:50:23,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.5806451612903225) internal successors, (80), 32 states have internal predecessors, (80), 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 22:50:23,641 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2023-02-15 22:50:23,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-02-15 22:50:23,641 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:23,641 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1] [2023-02-15 22:50:23,648 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 22:50:23,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:23,846 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:23,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:23,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1183028819, now seen corresponding path program 3 times [2023-02-15 22:50:23,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:23,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936380167] [2023-02-15 22:50:23,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:23,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:24,019 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 22:50:24,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:24,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936380167] [2023-02-15 22:50:24,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936380167] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:50:24,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258725545] [2023-02-15 22:50:24,019 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 22:50:24,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:24,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:50:24,021 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 22:50:24,023 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 22:50:24,062 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-15 22:50:24,062 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:50:24,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-15 22:50:24,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:50:24,120 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 22:50:24,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:50:24,310 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 22:50:24,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258725545] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:50:24,310 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:50:24,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-15 22:50:24,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772853748] [2023-02-15 22:50:24,311 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:50:24,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 22:50:24,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:24,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 22:50:24,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-15 22:50:24,312 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 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 22:50:24,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:24,353 INFO L93 Difference]: Finished difference Result 150 states and 161 transitions. [2023-02-15 22:50:24,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-15 22:50:24,354 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 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 22:50:24,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:24,354 INFO L225 Difference]: With dead ends: 150 [2023-02-15 22:50:24,354 INFO L226 Difference]: Without dead ends: 149 [2023-02-15 22:50:24,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 100 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 22:50:24,355 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 66 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:50:24,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 115 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:50:24,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-02-15 22:50:24,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 121. [2023-02-15 22:50:24,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 118 states have (on average 1.1440677966101696) internal successors, (135), 120 states have internal predecessors, (135), 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 22:50:24,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 135 transitions. [2023-02-15 22:50:24,360 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 135 transitions. Word has length 56 [2023-02-15 22:50:24,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:24,361 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 135 transitions. [2023-02-15 22:50:24,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 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 22:50:24,361 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 135 transitions. [2023-02-15 22:50:24,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-02-15 22:50:24,361 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:24,362 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 1, 1, 1, 1] [2023-02-15 22:50:24,377 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 22:50:24,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-02-15 22:50:24,567 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:24,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:24,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1552726511, now seen corresponding path program 3 times [2023-02-15 22:50:24,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:24,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072210956] [2023-02-15 22:50:24,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:24,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:25,066 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:25,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:25,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072210956] [2023-02-15 22:50:25,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072210956] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:50:25,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359129741] [2023-02-15 22:50:25,067 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 22:50:25,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:25,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:50:25,075 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 22:50:25,115 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 22:50:25,161 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-02-15 22:50:25,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:50:25,162 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 31 conjunts are in the unsatisfiable core [2023-02-15 22:50:25,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:50:25,241 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:25,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:50:25,924 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:25,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359129741] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:50:25,924 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:50:25,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 61 [2023-02-15 22:50:25,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132474057] [2023-02-15 22:50:25,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:50:25,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2023-02-15 22:50:25,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:25,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2023-02-15 22:50:25,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=991, Invalid=2791, Unknown=0, NotChecked=0, Total=3782 [2023-02-15 22:50:25,927 INFO L87 Difference]: Start difference. First operand 121 states and 135 transitions. Second operand has 62 states, 61 states have (on average 2.5245901639344264) internal successors, (154), 62 states have internal predecessors, (154), 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 22:50:26,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:26,518 INFO L93 Difference]: Finished difference Result 217 states and 232 transitions. [2023-02-15 22:50:26,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-02-15 22:50:26,519 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 2.5245901639344264) internal successors, (154), 62 states have internal predecessors, (154), 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 78 [2023-02-15 22:50:26,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:26,520 INFO L225 Difference]: With dead ends: 217 [2023-02-15 22:50:26,520 INFO L226 Difference]: Without dead ends: 216 [2023-02-15 22:50:26,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1654 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2416, Invalid=5956, Unknown=0, NotChecked=0, Total=8372 [2023-02-15 22:50:26,523 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 298 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:50:26,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 120 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:50:26,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-02-15 22:50:26,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 163. [2023-02-15 22:50:26,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 160 states have (on average 1.1625) internal successors, (186), 162 states have internal predecessors, (186), 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 22:50:26,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 186 transitions. [2023-02-15 22:50:26,528 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 186 transitions. Word has length 78 [2023-02-15 22:50:26,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:26,528 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 186 transitions. [2023-02-15 22:50:26,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 2.5245901639344264) internal successors, (154), 62 states have internal predecessors, (154), 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 22:50:26,529 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 186 transitions. [2023-02-15 22:50:26,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-02-15 22:50:26,529 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:26,529 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1] [2023-02-15 22:50:26,536 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 22:50:26,734 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,SelfDestructingSolverStorable14 [2023-02-15 22:50:26,735 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:26,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:26,735 INFO L85 PathProgramCache]: Analyzing trace with hash 477755455, now seen corresponding path program 4 times [2023-02-15 22:50:26,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:26,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487488419] [2023-02-15 22:50:26,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:26,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:27,189 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:27,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:27,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487488419] [2023-02-15 22:50:27,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487488419] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:50:27,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43132845] [2023-02-15 22:50:27,190 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 22:50:27,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:27,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:50:27,212 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 22:50:27,257 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 22:50:27,272 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 22:50:27,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:50:27,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 32 conjunts are in the unsatisfiable core [2023-02-15 22:50:27,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:50:27,363 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:27,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:50:28,045 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:28,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43132845] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:50:28,046 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:50:28,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2023-02-15 22:50:28,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748987036] [2023-02-15 22:50:28,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:50:28,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2023-02-15 22:50:28,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:28,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2023-02-15 22:50:28,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1056, Invalid=2976, Unknown=0, NotChecked=0, Total=4032 [2023-02-15 22:50:28,051 INFO L87 Difference]: Start difference. First operand 163 states and 186 transitions. Second operand has 64 states, 63 states have (on average 2.5396825396825395) internal successors, (160), 64 states have internal predecessors, (160), 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 22:50:28,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:28,638 INFO L93 Difference]: Finished difference Result 211 states and 226 transitions. [2023-02-15 22:50:28,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-02-15 22:50:28,639 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 2.5396825396825395) internal successors, (160), 64 states have internal predecessors, (160), 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 81 [2023-02-15 22:50:28,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:28,640 INFO L225 Difference]: With dead ends: 211 [2023-02-15 22:50:28,640 INFO L226 Difference]: Without dead ends: 178 [2023-02-15 22:50:28,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1726 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2527, Invalid=6215, Unknown=0, NotChecked=0, Total=8742 [2023-02-15 22:50:28,642 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 274 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:50:28,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 151 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:50:28,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-02-15 22:50:28,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 164. [2023-02-15 22:50:28,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 161 states have (on average 1.0683229813664596) internal successors, (172), 163 states have internal predecessors, (172), 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 22:50:28,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 172 transitions. [2023-02-15 22:50:28,650 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 172 transitions. Word has length 81 [2023-02-15 22:50:28,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:28,651 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 172 transitions. [2023-02-15 22:50:28,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 2.5396825396825395) internal successors, (160), 64 states have internal predecessors, (160), 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 22:50:28,651 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 172 transitions. [2023-02-15 22:50:28,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-02-15 22:50:28,657 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:28,657 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1] [2023-02-15 22:50:28,662 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 22:50:28,862 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,SelfDestructingSolverStorable15 [2023-02-15 22:50:28,862 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:28,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:28,863 INFO L85 PathProgramCache]: Analyzing trace with hash 493726893, now seen corresponding path program 4 times [2023-02-15 22:50:28,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:28,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555916302] [2023-02-15 22:50:28,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:28,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:29,283 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 22:50:29,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:29,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555916302] [2023-02-15 22:50:29,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555916302] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:50:29,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110336559] [2023-02-15 22:50:29,284 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 22:50:29,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:29,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:50:29,285 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 22:50:29,305 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 22:50:29,354 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 22:50:29,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:50:29,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-15 22:50:29,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:50:29,467 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 22:50:29,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:50:30,049 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 22:50:30,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110336559] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:50:30,050 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:50:30,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-15 22:50:30,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328266450] [2023-02-15 22:50:30,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:50:30,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-15 22:50:30,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:30,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-15 22:50:30,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 22:50:30,052 INFO L87 Difference]: Start difference. First operand 164 states and 172 transitions. Second operand has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 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 22:50:30,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:30,146 INFO L93 Difference]: Finished difference Result 302 states and 325 transitions. [2023-02-15 22:50:30,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-15 22:50:30,146 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 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 22:50:30,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:30,147 INFO L225 Difference]: With dead ends: 302 [2023-02-15 22:50:30,147 INFO L226 Difference]: Without dead ends: 301 [2023-02-15 22:50:30,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 22:50:30,148 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 154 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 235 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 22:50:30,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 235 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:50:30,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2023-02-15 22:50:30,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 241. [2023-02-15 22:50:30,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 238 states have (on average 1.138655462184874) internal successors, (271), 240 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:50:30,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 271 transitions. [2023-02-15 22:50:30,154 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 271 transitions. Word has length 116 [2023-02-15 22:50:30,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:30,155 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 271 transitions. [2023-02-15 22:50:30,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 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 22:50:30,155 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 271 transitions. [2023-02-15 22:50:30,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-02-15 22:50:30,156 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:30,156 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 30, 1, 1, 1, 1] [2023-02-15 22:50:30,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-02-15 22:50:30,361 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,SelfDestructingSolverStorable16 [2023-02-15 22:50:30,362 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:30,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:30,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1565278737, now seen corresponding path program 4 times [2023-02-15 22:50:30,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:30,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003625173] [2023-02-15 22:50:30,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:30,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:31,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2325 backedges. 0 proven. 2325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:31,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:31,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003625173] [2023-02-15 22:50:31,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003625173] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:50:31,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767456416] [2023-02-15 22:50:31,817 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 22:50:31,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:31,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:50:31,819 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 22:50:31,821 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 22:50:31,893 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 22:50:31,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:50:31,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 63 conjunts are in the unsatisfiable core [2023-02-15 22:50:31,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:50:32,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2325 backedges. 0 proven. 2325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:32,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:50:34,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2325 backedges. 0 proven. 2325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:34,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767456416] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:50:34,008 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:50:34,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63, 63] total 125 [2023-02-15 22:50:34,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831114520] [2023-02-15 22:50:34,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:50:34,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 126 states [2023-02-15 22:50:34,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:34,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2023-02-15 22:50:34,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4031, Invalid=11719, Unknown=0, NotChecked=0, Total=15750 [2023-02-15 22:50:34,017 INFO L87 Difference]: Start difference. First operand 241 states and 271 transitions. Second operand has 126 states, 125 states have (on average 2.512) internal successors, (314), 126 states have internal predecessors, (314), 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 22:50:36,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:36,251 INFO L93 Difference]: Finished difference Result 433 states and 464 transitions. [2023-02-15 22:50:36,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-02-15 22:50:36,252 INFO L78 Accepts]: Start accepts. Automaton has has 126 states, 125 states have (on average 2.512) internal successors, (314), 126 states have internal predecessors, (314), 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 158 [2023-02-15 22:50:36,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:36,254 INFO L225 Difference]: With dead ends: 433 [2023-02-15 22:50:36,254 INFO L226 Difference]: Without dead ends: 432 [2023-02-15 22:50:36,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7382 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=9952, Invalid=25204, Unknown=0, NotChecked=0, Total=35156 [2023-02-15 22:50:36,259 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 891 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 22:50:36,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 226 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 22:50:36,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2023-02-15 22:50:36,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 323. [2023-02-15 22:50:36,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 320 states have (on average 1.15625) internal successors, (370), 322 states have internal predecessors, (370), 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 22:50:36,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 370 transitions. [2023-02-15 22:50:36,270 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 370 transitions. Word has length 158 [2023-02-15 22:50:36,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:36,270 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 370 transitions. [2023-02-15 22:50:36,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 126 states, 125 states have (on average 2.512) internal successors, (314), 126 states have internal predecessors, (314), 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 22:50:36,271 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 370 transitions. [2023-02-15 22:50:36,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-02-15 22:50:36,272 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:36,273 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1] [2023-02-15 22:50:36,278 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 22:50:36,478 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,SelfDestructingSolverStorable17 [2023-02-15 22:50:36,479 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:36,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:36,480 INFO L85 PathProgramCache]: Analyzing trace with hash -758877121, now seen corresponding path program 5 times [2023-02-15 22:50:36,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:36,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915374590] [2023-02-15 22:50:36,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:36,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:37,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:37,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:37,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915374590] [2023-02-15 22:50:37,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915374590] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:50:37,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956031415] [2023-02-15 22:50:37,585 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 22:50:37,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:37,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:50:37,587 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 22:50:37,587 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 22:50:37,728 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2023-02-15 22:50:37,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:50:37,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 64 conjunts are in the unsatisfiable core [2023-02-15 22:50:37,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:50:37,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:37,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:50:39,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:39,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956031415] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:50:39,489 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:50:39,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 127 [2023-02-15 22:50:39,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049339969] [2023-02-15 22:50:39,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:50:39,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2023-02-15 22:50:39,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:39,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2023-02-15 22:50:39,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4160, Invalid=12096, Unknown=0, NotChecked=0, Total=16256 [2023-02-15 22:50:39,522 INFO L87 Difference]: Start difference. First operand 323 states and 370 transitions. Second operand has 128 states, 127 states have (on average 2.5196850393700787) internal successors, (320), 128 states have internal predecessors, (320), 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 22:50:41,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:41,051 INFO L93 Difference]: Finished difference Result 411 states and 442 transitions. [2023-02-15 22:50:41,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2023-02-15 22:50:41,051 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 127 states have (on average 2.5196850393700787) internal successors, (320), 128 states have internal predecessors, (320), 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 161 [2023-02-15 22:50:41,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:41,058 INFO L225 Difference]: With dead ends: 411 [2023-02-15 22:50:41,058 INFO L226 Difference]: Without dead ends: 346 [2023-02-15 22:50:41,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7534 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=10175, Invalid=25735, Unknown=0, NotChecked=0, Total=35910 [2023-02-15 22:50:41,062 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 707 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 22:50:41,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 240 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 22:50:41,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2023-02-15 22:50:41,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 324. [2023-02-15 22:50:41,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 321 states have (on average 1.0591900311526479) internal successors, (340), 323 states have internal predecessors, (340), 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 22:50:41,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 340 transitions. [2023-02-15 22:50:41,083 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 340 transitions. Word has length 161 [2023-02-15 22:50:41,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:41,084 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 340 transitions. [2023-02-15 22:50:41,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 127 states have (on average 2.5196850393700787) internal successors, (320), 128 states have internal predecessors, (320), 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 22:50:41,084 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 340 transitions. [2023-02-15 22:50:41,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-02-15 22:50:41,101 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:41,101 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1] [2023-02-15 22:50:41,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-15 22:50:41,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:41,307 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:41,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:41,307 INFO L85 PathProgramCache]: Analyzing trace with hash 982823597, now seen corresponding path program 5 times [2023-02-15 22:50:41,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:41,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405984234] [2023-02-15 22:50:41,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:41,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:42,556 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 22:50:42,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:42,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405984234] [2023-02-15 22:50:42,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405984234] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:50:42,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558766415] [2023-02-15 22:50:42,556 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 22:50:42,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:42,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:50:42,558 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:50:42,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-15 22:50:42,894 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-15 22:50:42,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:50:42,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 49 conjunts are in the unsatisfiable core [2023-02-15 22:50:42,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:50:43,134 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 22:50:43,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:50:45,187 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 22:50:45,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558766415] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:50:45,188 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:50:45,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-15 22:50:45,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553317844] [2023-02-15 22:50:45,188 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:50:45,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-15 22:50:45,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:45,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-15 22:50:45,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-15 22:50:45,191 INFO L87 Difference]: Start difference. First operand 324 states and 340 transitions. Second operand has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 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 22:50:45,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:50:45,454 INFO L93 Difference]: Finished difference Result 606 states and 653 transitions. [2023-02-15 22:50:45,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-15 22:50:45,455 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 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 22:50:45,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:50:45,457 INFO L225 Difference]: With dead ends: 606 [2023-02-15 22:50:45,459 INFO L226 Difference]: Without dead ends: 605 [2023-02-15 22:50:45,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-15 22:50:45,460 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 286 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 22:50:45,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 450 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 22:50:45,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2023-02-15 22:50:45,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 481. [2023-02-15 22:50:45,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 478 states have (on average 1.1359832635983265) internal successors, (543), 480 states have internal predecessors, (543), 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 22:50:45,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 543 transitions. [2023-02-15 22:50:45,479 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 543 transitions. Word has length 236 [2023-02-15 22:50:45,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:50:45,480 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 543 transitions. [2023-02-15 22:50:45,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 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 22:50:45,480 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 543 transitions. [2023-02-15 22:50:45,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2023-02-15 22:50:45,483 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:50:45,484 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 62, 1, 1, 1, 1] [2023-02-15 22:50:45,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-15 22:50:45,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:45,690 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:50:45,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:50:45,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1123432977, now seen corresponding path program 5 times [2023-02-15 22:50:45,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:50:45,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091842475] [2023-02-15 22:50:45,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:50:45,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:50:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:50:50,273 INFO L134 CoverageAnalysis]: Checked inductivity of 9765 backedges. 0 proven. 9765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:50,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:50:50,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091842475] [2023-02-15 22:50:50,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091842475] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:50:50,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94156781] [2023-02-15 22:50:50,274 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 22:50:50,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:50:50,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:50:50,275 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:50:50,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-15 22:50:50,974 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 63 check-sat command(s) [2023-02-15 22:50:50,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:50:50,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 127 conjunts are in the unsatisfiable core [2023-02-15 22:50:50,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:50:51,248 INFO L134 CoverageAnalysis]: Checked inductivity of 9765 backedges. 0 proven. 9765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:51,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:50:57,523 INFO L134 CoverageAnalysis]: Checked inductivity of 9765 backedges. 0 proven. 9765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:50:57,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94156781] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:50:57,523 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:50:57,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [127, 127, 127] total 253 [2023-02-15 22:50:57,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717431379] [2023-02-15 22:50:57,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:50:57,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 254 states [2023-02-15 22:50:57,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:50:57,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 254 interpolants. [2023-02-15 22:50:57,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16255, Invalid=48007, Unknown=0, NotChecked=0, Total=64262 [2023-02-15 22:50:57,532 INFO L87 Difference]: Start difference. First operand 481 states and 543 transitions. Second operand has 254 states, 253 states have (on average 2.505928853754941) internal successors, (634), 254 states have internal predecessors, (634), 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 22:51:05,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:51:05,951 INFO L93 Difference]: Finished difference Result 865 states and 928 transitions. [2023-02-15 22:51:05,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 254 states. [2023-02-15 22:51:05,952 INFO L78 Accepts]: Start accepts. Automaton has has 254 states, 253 states have (on average 2.505928853754941) internal successors, (634), 254 states have internal predecessors, (634), 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 318 [2023-02-15 22:51:05,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:51:05,954 INFO L225 Difference]: With dead ends: 865 [2023-02-15 22:51:05,954 INFO L226 Difference]: Without dead ends: 864 [2023-02-15 22:51:05,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 887 GetRequests, 509 SyntacticMatches, 0 SemanticMatches, 378 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31126 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=40384, Invalid=103636, Unknown=0, NotChecked=0, Total=144020 [2023-02-15 22:51:05,960 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1916 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1916 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-15 22:51:05,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1916 Valid, 411 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-15 22:51:05,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2023-02-15 22:51:05,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 643. [2023-02-15 22:51:05,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 640 states have (on average 1.153125) internal successors, (738), 642 states have internal predecessors, (738), 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 22:51:05,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 738 transitions. [2023-02-15 22:51:05,972 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 738 transitions. Word has length 318 [2023-02-15 22:51:05,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:51:05,972 INFO L495 AbstractCegarLoop]: Abstraction has 643 states and 738 transitions. [2023-02-15 22:51:05,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 254 states, 253 states have (on average 2.505928853754941) internal successors, (634), 254 states have internal predecessors, (634), 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 22:51:05,973 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 738 transitions. [2023-02-15 22:51:05,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-02-15 22:51:05,975 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:51:05,975 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1] [2023-02-15 22:51:05,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-02-15 22:51:06,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:51:06,189 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:51:06,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:51:06,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1806603201, now seen corresponding path program 6 times [2023-02-15 22:51:06,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:51:06,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985226785] [2023-02-15 22:51:06,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:51:06,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:51:06,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:51:10,839 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:51:10,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:51:10,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985226785] [2023-02-15 22:51:10,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985226785] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:51:10,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110004267] [2023-02-15 22:51:10,840 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 22:51:10,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:51:10,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:51:10,843 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:51:10,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-15 22:51:11,284 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2023-02-15 22:51:11,284 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:51:11,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 128 conjunts are in the unsatisfiable core [2023-02-15 22:51:11,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:51:11,565 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:51:11,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:51:21,056 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:51:21,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110004267] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:51:21,057 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:51:21,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128, 128] total 255 [2023-02-15 22:51:21,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797501398] [2023-02-15 22:51:21,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:51:21,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 256 states [2023-02-15 22:51:21,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:51:21,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 256 interpolants. [2023-02-15 22:51:21,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16512, Invalid=48768, Unknown=0, NotChecked=0, Total=65280 [2023-02-15 22:51:21,063 INFO L87 Difference]: Start difference. First operand 643 states and 738 transitions. Second operand has 256 states, 255 states have (on average 2.5098039215686274) internal successors, (640), 256 states have internal predecessors, (640), 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 22:51:28,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:51:28,337 INFO L93 Difference]: Finished difference Result 811 states and 874 transitions. [2023-02-15 22:51:28,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2023-02-15 22:51:28,339 INFO L78 Accepts]: Start accepts. Automaton has has 256 states, 255 states have (on average 2.5098039215686274) internal successors, (640), 256 states have internal predecessors, (640), 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 321 [2023-02-15 22:51:28,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:51:28,341 INFO L225 Difference]: With dead ends: 811 [2023-02-15 22:51:28,341 INFO L226 Difference]: Without dead ends: 682 [2023-02-15 22:51:28,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 894 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 380 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31438 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=40831, Invalid=104711, Unknown=0, NotChecked=0, Total=145542 [2023-02-15 22:51:28,348 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2143 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2143 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 22:51:28,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2143 Valid, 424 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 22:51:28,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2023-02-15 22:51:28,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 644. [2023-02-15 22:51:28,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 641 states have (on average 1.0546021840873634) internal successors, (676), 643 states have internal predecessors, (676), 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 22:51:28,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 676 transitions. [2023-02-15 22:51:28,359 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 676 transitions. Word has length 321 [2023-02-15 22:51:28,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:51:28,359 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 676 transitions. [2023-02-15 22:51:28,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 256 states, 255 states have (on average 2.5098039215686274) internal successors, (640), 256 states have internal predecessors, (640), 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 22:51:28,360 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 676 transitions. [2023-02-15 22:51:28,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2023-02-15 22:51:28,364 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:51:28,364 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 1, 1, 1, 1] [2023-02-15 22:51:28,372 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-02-15 22:51:28,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-02-15 22:51:28,573 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:51:28,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:51:28,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1056226989, now seen corresponding path program 6 times [2023-02-15 22:51:28,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:51:28,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606572320] [2023-02-15 22:51:28,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:51:28,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:51:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:51:32,579 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 22:51:32,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:51:32,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606572320] [2023-02-15 22:51:32,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606572320] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:51:32,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163320100] [2023-02-15 22:51:32,580 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 22:51:32,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:51:32,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:51:32,581 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:51:32,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-15 22:51:33,507 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-15 22:51:33,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:51:33,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 97 conjunts are in the unsatisfiable core [2023-02-15 22:51:33,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:51:33,973 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 22:51:33,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:51:41,670 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 22:51:41,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163320100] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:51:41,670 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:51:41,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-15 22:51:41,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800551175] [2023-02-15 22:51:41,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:51:41,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-15 22:51:41,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:51:41,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-15 22:51:41,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-15 22:51:41,678 INFO L87 Difference]: Start difference. First operand 644 states and 676 transitions. Second operand has 192 states, 191 states have (on average 4.973821989528796) internal successors, (950), 192 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 22:51:42,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:51:42,717 INFO L93 Difference]: Finished difference Result 1214 states and 1309 transitions. [2023-02-15 22:51:42,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-15 22:51:42,718 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 4.973821989528796) internal successors, (950), 192 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 22:51:42,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:51:42,721 INFO L225 Difference]: With dead ends: 1214 [2023-02-15 22:51:42,721 INFO L226 Difference]: Without dead ends: 1213 [2023-02-15 22:51:42,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1046 GetRequests, 856 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-15 22:51:42,723 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 866 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 22:51:42,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 864 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 22:51:42,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2023-02-15 22:51:42,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 961. [2023-02-15 22:51:42,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 958 states have (on average 1.1346555323590815) internal successors, (1087), 960 states have internal predecessors, (1087), 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 22:51:42,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1087 transitions. [2023-02-15 22:51:42,738 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1087 transitions. Word has length 476 [2023-02-15 22:51:42,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:51:42,738 INFO L495 AbstractCegarLoop]: Abstraction has 961 states and 1087 transitions. [2023-02-15 22:51:42,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 4.973821989528796) internal successors, (950), 192 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 22:51:42,739 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1087 transitions. [2023-02-15 22:51:42,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2023-02-15 22:51:42,742 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:51:42,742 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 126, 1, 1, 1, 1] [2023-02-15 22:51:42,748 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-02-15 22:51:42,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:51:42,949 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:51:42,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:51:42,949 INFO L85 PathProgramCache]: Analyzing trace with hash -371862033, now seen corresponding path program 6 times [2023-02-15 22:51:42,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:51:42,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482650931] [2023-02-15 22:51:42,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:51:42,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:51:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:52:07,840 INFO L134 CoverageAnalysis]: Checked inductivity of 40005 backedges. 0 proven. 40005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:52:07,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:52:07,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482650931] [2023-02-15 22:52:07,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482650931] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:52:07,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703151654] [2023-02-15 22:52:07,841 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 22:52:07,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:52:07,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:52:07,842 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:52:07,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-15 22:52:10,729 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 127 check-sat command(s) [2023-02-15 22:52:10,729 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:52:10,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 1424 conjuncts, 255 conjunts are in the unsatisfiable core [2023-02-15 22:52:10,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:52:11,242 INFO L134 CoverageAnalysis]: Checked inductivity of 40005 backedges. 0 proven. 40005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:52:11,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:52:41,715 INFO L134 CoverageAnalysis]: Checked inductivity of 40005 backedges. 0 proven. 40005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:52:41,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703151654] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:52:41,716 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:52:41,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [255, 255, 255] total 509 [2023-02-15 22:52:41,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643065960] [2023-02-15 22:52:41,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:52:41,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 510 states [2023-02-15 22:52:41,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:52:41,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 510 interpolants. [2023-02-15 22:52:41,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65279, Invalid=194311, Unknown=0, NotChecked=0, Total=259590 [2023-02-15 22:52:41,740 INFO L87 Difference]: Start difference. First operand 961 states and 1087 transitions. Second operand has 510 states, 509 states have (on average 2.5029469548133596) internal successors, (1274), 510 states have internal predecessors, (1274), 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 22:53:26,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:53:26,329 INFO L93 Difference]: Finished difference Result 1729 states and 1856 transitions. [2023-02-15 22:53:26,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 510 states. [2023-02-15 22:53:26,334 INFO L78 Accepts]: Start accepts. Automaton has has 510 states, 509 states have (on average 2.5029469548133596) internal successors, (1274), 510 states have internal predecessors, (1274), 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 638 [2023-02-15 22:53:26,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:53:26,355 INFO L225 Difference]: With dead ends: 1729 [2023-02-15 22:53:26,355 INFO L226 Difference]: Without dead ends: 1728 [2023-02-15 22:53:26,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1783 GetRequests, 1021 SyntacticMatches, 0 SemanticMatches, 762 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127766 ImplicationChecksByTransitivity, 63.9s TimeCoverageRelationStatistics Valid=162688, Invalid=420244, Unknown=0, NotChecked=0, Total=582932 [2023-02-15 22:53:26,383 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 4757 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4757 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-02-15 22:53:26,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4757 Valid, 766 Invalid, 1576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-02-15 22:53:26,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2023-02-15 22:53:26,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1283. [2023-02-15 22:53:26,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1280 states have (on average 1.1515625) internal successors, (1474), 1282 states have internal predecessors, (1474), 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 22:53:26,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1474 transitions. [2023-02-15 22:53:26,439 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1474 transitions. Word has length 638 [2023-02-15 22:53:26,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:53:26,439 INFO L495 AbstractCegarLoop]: Abstraction has 1283 states and 1474 transitions. [2023-02-15 22:53:26,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 510 states, 509 states have (on average 2.5029469548133596) internal successors, (1274), 510 states have internal predecessors, (1274), 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 22:53:26,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1474 transitions. [2023-02-15 22:53:26,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2023-02-15 22:53:26,443 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:53:26,443 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 127, 1, 1, 1, 1, 1, 1] [2023-02-15 22:53:26,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-02-15 22:53:26,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:53:26,650 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-15 22:53:26,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:53:26,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1421124545, now seen corresponding path program 7 times [2023-02-15 22:53:26,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:53:26,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992308044] [2023-02-15 22:53:26,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:53:26,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:53:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:53:49,258 INFO L134 CoverageAnalysis]: Checked inductivity of 40132 backedges. 0 proven. 40132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:53:49,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:53:49,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992308044] [2023-02-15 22:53:49,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992308044] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:53:49,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422126710] [2023-02-15 22:53:49,259 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-15 22:53:49,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:53:49,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:53:49,260 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:53:49,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-02-15 22:53:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:53:49,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 256 conjunts are in the unsatisfiable core [2023-02-15 22:53:49,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:53:50,037 INFO L134 CoverageAnalysis]: Checked inductivity of 40132 backedges. 0 proven. 40132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:53:50,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:54:14,404 INFO L134 CoverageAnalysis]: Checked inductivity of 40132 backedges. 0 proven. 40132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:54:14,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422126710] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:54:14,404 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:54:14,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [256, 256, 256] total 511 [2023-02-15 22:54:14,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062155368] [2023-02-15 22:54:14,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:54:14,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 512 states [2023-02-15 22:54:14,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:54:14,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 512 interpolants. [2023-02-15 22:54:14,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65792, Invalid=195840, Unknown=0, NotChecked=0, Total=261632 [2023-02-15 22:54:14,435 INFO L87 Difference]: Start difference. First operand 1283 states and 1474 transitions. Second operand has 512 states, 511 states have (on average 2.5048923679060664) internal successors, (1280), 512 states have internal predecessors, (1280), 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)