./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-crafted/zero_sum_m2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 574ddb4e 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/array-crafted/zero_sum_m2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 64e2b591ee375a99f019d69fefe326e9fd46db25f76a67e4f3bee333adbec68f --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 11:08:11,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 11:08:11,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 11:08:11,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 11:08:11,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 11:08:11,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 11:08:11,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 11:08:11,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 11:08:11,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 11:08:11,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 11:08:11,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 11:08:11,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 11:08:11,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 11:08:11,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 11:08:11,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 11:08:11,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 11:08:11,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 11:08:11,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 11:08:11,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 11:08:11,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 11:08:11,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 11:08:11,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 11:08:11,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 11:08:11,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 11:08:11,235 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 11:08:11,235 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 11:08:11,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 11:08:11,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 11:08:11,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 11:08:11,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 11:08:11,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 11:08:11,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 11:08:11,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 11:08:11,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 11:08:11,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 11:08:11,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 11:08:11,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 11:08:11,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 11:08:11,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 11:08:11,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 11:08:11,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 11:08:11,244 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-18 11:08:11,267 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 11:08:11,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 11:08:11,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 11:08:11,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 11:08:11,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 11:08:11,269 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 11:08:11,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 11:08:11,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 11:08:11,270 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 11:08:11,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 11:08:11,270 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 11:08:11,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 11:08:11,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 11:08:11,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 11:08:11,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 11:08:11,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 11:08:11,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 11:08:11,272 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 11:08:11,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 11:08:11,272 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 11:08:11,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 11:08:11,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 11:08:11,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 11:08:11,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 11:08:11,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 11:08:11,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 11:08:11,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 11:08:11,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 11:08:11,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 11:08:11,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 11:08:11,274 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 11:08:11,274 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 11:08:11,274 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 11:08:11,274 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 11:08:11,274 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 11:08:11,274 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64e2b591ee375a99f019d69fefe326e9fd46db25f76a67e4f3bee333adbec68f [2023-02-18 11:08:11,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 11:08:11,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 11:08:11,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 11:08:11,466 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 11:08:11,466 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 11:08:11,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-crafted/zero_sum_m2.c [2023-02-18 11:08:12,470 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 11:08:12,599 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 11:08:12,599 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-crafted/zero_sum_m2.c [2023-02-18 11:08:12,603 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c340737a8/532f8caa72b24f06b21215ca346cf7d2/FLAG51d17f8bb [2023-02-18 11:08:12,612 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c340737a8/532f8caa72b24f06b21215ca346cf7d2 [2023-02-18 11:08:12,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 11:08:12,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 11:08:12,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 11:08:12,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 11:08:12,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 11:08:12,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:08:12" (1/1) ... [2023-02-18 11:08:12,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@232afc3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:08:12, skipping insertion in model container [2023-02-18 11:08:12,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:08:12" (1/1) ... [2023-02-18 11:08:12,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 11:08:12,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 11:08:12,711 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/array-crafted/zero_sum_m2.c[402,415] [2023-02-18 11:08:12,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 11:08:12,726 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 11:08:12,733 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/array-crafted/zero_sum_m2.c[402,415] [2023-02-18 11:08:12,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 11:08:12,745 INFO L208 MainTranslator]: Completed translation [2023-02-18 11:08:12,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:08:12 WrapperNode [2023-02-18 11:08:12,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 11:08:12,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 11:08:12,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 11:08:12,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 11:08:12,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:08:12" (1/1) ... [2023-02-18 11:08:12,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:08:12" (1/1) ... [2023-02-18 11:08:12,766 INFO L138 Inliner]: procedures = 15, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2023-02-18 11:08:12,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 11:08:12,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 11:08:12,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 11:08:12,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 11:08:12,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:08:12" (1/1) ... [2023-02-18 11:08:12,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:08:12" (1/1) ... [2023-02-18 11:08:12,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:08:12" (1/1) ... [2023-02-18 11:08:12,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:08:12" (1/1) ... [2023-02-18 11:08:12,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:08:12" (1/1) ... [2023-02-18 11:08:12,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:08:12" (1/1) ... [2023-02-18 11:08:12,779 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:08:12" (1/1) ... [2023-02-18 11:08:12,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:08:12" (1/1) ... [2023-02-18 11:08:12,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 11:08:12,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 11:08:12,782 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 11:08:12,782 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 11:08:12,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:08:12" (1/1) ... [2023-02-18 11:08:12,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 11:08:12,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 11:08:12,804 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) [2023-02-18 11:08:12,805 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 [2023-02-18 11:08:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 11:08:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 11:08:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-18 11:08:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-18 11:08:12,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 11:08:12,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 11:08:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-18 11:08:12,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-18 11:08:12,896 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 11:08:12,899 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 11:08:13,043 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 11:08:13,047 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 11:08:13,047 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2023-02-18 11:08:13,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:08:13 BoogieIcfgContainer [2023-02-18 11:08:13,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 11:08:13,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 11:08:13,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 11:08:13,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 11:08:13,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 11:08:12" (1/3) ... [2023-02-18 11:08:13,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631a0288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:08:13, skipping insertion in model container [2023-02-18 11:08:13,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:08:12" (2/3) ... [2023-02-18 11:08:13,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@631a0288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:08:13, skipping insertion in model container [2023-02-18 11:08:13,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:08:13" (3/3) ... [2023-02-18 11:08:13,055 INFO L112 eAbstractionObserver]: Analyzing ICFG zero_sum_m2.c [2023-02-18 11:08:13,071 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 11:08:13,072 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-18 11:08:13,116 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 11:08:13,120 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;@34e97bb4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 11:08:13,121 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-18 11:08:13,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:13,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-18 11:08:13,130 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 11:08:13,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 11:08:13,131 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 11:08:13,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 11:08:13,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1122046426, now seen corresponding path program 1 times [2023-02-18 11:08:13,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 11:08:13,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811412486] [2023-02-18 11:08:13,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 11:08:13,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 11:08:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 11:08:13,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 11:08:13,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 11:08:13,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811412486] [2023-02-18 11:08:13,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811412486] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 11:08:13,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 11:08:13,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 11:08:13,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860190849] [2023-02-18 11:08:13,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 11:08:13,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-18 11:08:13,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 11:08:13,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-18 11:08:13,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 11:08:13,308 INFO L87 Difference]: Start difference. First operand has 26 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 25 states have internal predecessors, (37), 0 states have call successors, (0), 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 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) [2023-02-18 11:08:13,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 11:08:13,318 INFO L93 Difference]: Finished difference Result 47 states and 66 transitions. [2023-02-18 11:08:13,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-18 11:08:13,320 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-02-18 11:08:13,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 11:08:13,325 INFO L225 Difference]: With dead ends: 47 [2023-02-18 11:08:13,331 INFO L226 Difference]: Without dead ends: 21 [2023-02-18 11:08:13,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 11:08:13,336 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 11:08:13,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 11:08:13,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-02-18 11:08:13,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-02-18 11:08:13,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:13,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2023-02-18 11:08:13,383 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 15 [2023-02-18 11:08:13,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 11:08:13,384 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2023-02-18 11:08:13,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) [2023-02-18 11:08:13,385 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2023-02-18 11:08:13,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-18 11:08:13,385 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 11:08:13,385 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 11:08:13,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 11:08:13,386 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 11:08:13,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 11:08:13,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1896542740, now seen corresponding path program 1 times [2023-02-18 11:08:13,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 11:08:13,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895580059] [2023-02-18 11:08:13,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 11:08:13,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 11:08:13,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 11:08:13,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 11:08:13,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 11:08:13,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895580059] [2023-02-18 11:08:13,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895580059] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 11:08:13,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 11:08:13,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 11:08:13,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354983433] [2023-02-18 11:08:13,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 11:08:13,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 11:08:13,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 11:08:13,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 11:08:13,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 11:08:13,456 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2023-02-18 11:08:13,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 11:08:13,477 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2023-02-18 11:08:13,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 11:08:13,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-02-18 11:08:13,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 11:08:13,478 INFO L225 Difference]: With dead ends: 39 [2023-02-18 11:08:13,478 INFO L226 Difference]: Without dead ends: 23 [2023-02-18 11:08:13,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 11:08:13,479 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 1 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 11:08:13,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 34 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 11:08:13,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-18 11:08:13,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2023-02-18 11:08:13,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:13,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2023-02-18 11:08:13,483 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2023-02-18 11:08:13,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 11:08:13,483 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2023-02-18 11:08:13,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2023-02-18 11:08:13,483 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2023-02-18 11:08:13,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 11:08:13,484 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 11:08:13,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 11:08:13,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 11:08:13,484 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 11:08:13,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 11:08:13,485 INFO L85 PathProgramCache]: Analyzing trace with hash -66597874, now seen corresponding path program 1 times [2023-02-18 11:08:13,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 11:08:13,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636206185] [2023-02-18 11:08:13,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 11:08:13,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 11:08:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 11:08:13,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 11:08:13,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 11:08:13,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636206185] [2023-02-18 11:08:13,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636206185] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 11:08:13,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 11:08:13,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-18 11:08:13,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085602259] [2023-02-18 11:08:13,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 11:08:13,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 11:08:13,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 11:08:13,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 11:08:13,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-18 11:08:13,577 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:13,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 11:08:13,628 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions. [2023-02-18 11:08:13,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 11:08:13,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-02-18 11:08:13,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 11:08:13,629 INFO L225 Difference]: With dead ends: 43 [2023-02-18 11:08:13,629 INFO L226 Difference]: Without dead ends: 30 [2023-02-18 11:08:13,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-18 11:08:13,630 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 23 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 11:08:13,631 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 15 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 11:08:13,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-18 11:08:13,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2023-02-18 11:08:13,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.2) internal successors, (30), 25 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:13,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2023-02-18 11:08:13,635 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 17 [2023-02-18 11:08:13,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 11:08:13,635 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2023-02-18 11:08:13,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:13,635 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2023-02-18 11:08:13,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-18 11:08:13,636 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 11:08:13,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 11:08:13,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 11:08:13,636 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 11:08:13,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 11:08:13,637 INFO L85 PathProgramCache]: Analyzing trace with hash -2060422634, now seen corresponding path program 1 times [2023-02-18 11:08:13,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 11:08:13,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877702281] [2023-02-18 11:08:13,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 11:08:13,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 11:08:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 11:08:13,726 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 11:08:13,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 11:08:13,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877702281] [2023-02-18 11:08:13,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877702281] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 11:08:13,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722450456] [2023-02-18 11:08:13,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 11:08:13,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:08:13,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 11:08:13,731 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) [2023-02-18 11:08:13,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 11:08:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 11:08:13,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 11:08:13,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 11:08:13,831 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 11:08:13,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 11:08:13,855 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-18 11:08:13,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722450456] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 11:08:13,857 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 11:08:13,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-02-18 11:08:13,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460322224] [2023-02-18 11:08:13,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 11:08:13,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 11:08:13,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 11:08:13,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 11:08:13,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-02-18 11:08:13,861 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:13,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 11:08:13,892 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2023-02-18 11:08:13,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 11:08:13,893 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-02-18 11:08:13,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 11:08:13,894 INFO L225 Difference]: With dead ends: 49 [2023-02-18 11:08:13,894 INFO L226 Difference]: Without dead ends: 29 [2023-02-18 11:08:13,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-02-18 11:08:13,896 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 2 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 11:08:13,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 45 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 11:08:13,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-02-18 11:08:13,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2023-02-18 11:08:13,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:13,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2023-02-18 11:08:13,903 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 25 [2023-02-18 11:08:13,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 11:08:13,904 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2023-02-18 11:08:13,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:13,904 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2023-02-18 11:08:13,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-18 11:08:13,905 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 11:08:13,905 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 11:08:13,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-18 11:08:14,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:08:14,112 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 11:08:14,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 11:08:14,112 INFO L85 PathProgramCache]: Analyzing trace with hash -959615560, now seen corresponding path program 2 times [2023-02-18 11:08:14,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 11:08:14,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778745137] [2023-02-18 11:08:14,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 11:08:14,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 11:08:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 11:08:14,192 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-02-18 11:08:14,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 11:08:14,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778745137] [2023-02-18 11:08:14,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778745137] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 11:08:14,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59664791] [2023-02-18 11:08:14,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 11:08:14,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:08:14,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 11:08:14,195 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) [2023-02-18 11:08:14,199 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 11:08:14,256 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 11:08:14,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 11:08:14,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 11:08:14,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 11:08:14,279 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-02-18 11:08:14,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 11:08:14,316 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-02-18 11:08:14,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59664791] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 11:08:14,316 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 11:08:14,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2023-02-18 11:08:14,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441855972] [2023-02-18 11:08:14,317 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 11:08:14,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-18 11:08:14,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 11:08:14,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-18 11:08:14,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-02-18 11:08:14,318 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:14,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 11:08:14,384 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2023-02-18 11:08:14,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 11:08:14,385 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 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 27 [2023-02-18 11:08:14,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 11:08:14,385 INFO L225 Difference]: With dead ends: 56 [2023-02-18 11:08:14,385 INFO L226 Difference]: Without dead ends: 40 [2023-02-18 11:08:14,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 48 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2023-02-18 11:08:14,387 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 31 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 11:08:14,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 15 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 11:08:14,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-18 11:08:14,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2023-02-18 11:08:14,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 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) [2023-02-18 11:08:14,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2023-02-18 11:08:14,390 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 27 [2023-02-18 11:08:14,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 11:08:14,391 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2023-02-18 11:08:14,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:14,391 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2023-02-18 11:08:14,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-18 11:08:14,392 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 11:08:14,392 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 11:08:14,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-18 11:08:14,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:08:14,596 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 11:08:14,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 11:08:14,597 INFO L85 PathProgramCache]: Analyzing trace with hash -2048824896, now seen corresponding path program 3 times [2023-02-18 11:08:14,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 11:08:14,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65097313] [2023-02-18 11:08:14,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 11:08:14,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 11:08:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 11:08:15,930 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 11:08:15,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 11:08:15,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65097313] [2023-02-18 11:08:15,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65097313] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 11:08:15,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65987494] [2023-02-18 11:08:15,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 11:08:15,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:08:15,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 11:08:15,932 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) [2023-02-18 11:08:15,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 11:08:15,978 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-02-18 11:08:15,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 11:08:15,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-18 11:08:15,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 11:08:16,666 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 93 [2023-02-18 11:08:16,767 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 11:08:16,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 11:08:17,958 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 11:08:17,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 284 treesize of output 214 [2023-02-18 11:08:18,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 11:08:18,202 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-18 11:08:18,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 11:08:18,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 11:08:18,205 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 11:08:18,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 93 treesize of output 40 [2023-02-18 11:08:19,069 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 11:08:19,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65987494] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 11:08:19,069 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 11:08:19,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 25, 25] total 61 [2023-02-18 11:08:19,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038120615] [2023-02-18 11:08:19,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 11:08:19,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2023-02-18 11:08:19,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 11:08:19,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2023-02-18 11:08:19,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=3405, Unknown=0, NotChecked=0, Total=3660 [2023-02-18 11:08:19,072 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 61 states, 61 states have (on average 1.459016393442623) internal successors, (89), 61 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:22,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 11:08:22,055 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2023-02-18 11:08:22,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-02-18 11:08:22,065 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 1.459016393442623) internal successors, (89), 61 states have internal predecessors, (89), 0 states have call successors, (0), 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 35 [2023-02-18 11:08:22,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 11:08:22,067 INFO L225 Difference]: With dead ends: 87 [2023-02-18 11:08:22,067 INFO L226 Difference]: Without dead ends: 83 [2023-02-18 11:08:22,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 26 SyntacticMatches, 9 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2141 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=534, Invalid=7298, Unknown=0, NotChecked=0, Total=7832 [2023-02-18 11:08:22,070 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 32 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-02-18 11:08:22,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 148 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-02-18 11:08:22,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-02-18 11:08:22,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 53. [2023-02-18 11:08:22,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.1538461538461537) internal successors, (60), 52 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:22,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2023-02-18 11:08:22,089 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 35 [2023-02-18 11:08:22,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 11:08:22,089 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2023-02-18 11:08:22,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 1.459016393442623) internal successors, (89), 61 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:22,090 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2023-02-18 11:08:22,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-18 11:08:22,092 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 11:08:22,092 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 11:08:22,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-18 11:08:22,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:08:22,297 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 11:08:22,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 11:08:22,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1772469278, now seen corresponding path program 4 times [2023-02-18 11:08:22,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 11:08:22,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812066627] [2023-02-18 11:08:22,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 11:08:22,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 11:08:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 11:08:22,353 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-18 11:08:22,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 11:08:22,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812066627] [2023-02-18 11:08:22,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812066627] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 11:08:22,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629297911] [2023-02-18 11:08:22,354 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 11:08:22,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:08:22,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 11:08:22,355 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) [2023-02-18 11:08:22,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-18 11:08:22,393 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 11:08:22,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 11:08:22,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-18 11:08:22,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 11:08:22,440 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-18 11:08:22,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 11:08:22,468 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-18 11:08:22,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629297911] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 11:08:22,469 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 11:08:22,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2023-02-18 11:08:22,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625820467] [2023-02-18 11:08:22,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 11:08:22,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-18 11:08:22,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 11:08:22,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-18 11:08:22,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-02-18 11:08:22,470 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 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) [2023-02-18 11:08:22,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 11:08:22,628 INFO L93 Difference]: Finished difference Result 138 states and 155 transitions. [2023-02-18 11:08:22,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-18 11:08:22,629 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 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 37 [2023-02-18 11:08:22,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 11:08:22,631 INFO L225 Difference]: With dead ends: 138 [2023-02-18 11:08:22,631 INFO L226 Difference]: Without dead ends: 72 [2023-02-18 11:08:22,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 61 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2023-02-18 11:08:22,632 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 136 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 11:08:22,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 46 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 11:08:22,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-02-18 11:08:22,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 56. [2023-02-18 11:08:22,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.1272727272727272) internal successors, (62), 55 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:22,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 62 transitions. [2023-02-18 11:08:22,651 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 62 transitions. Word has length 37 [2023-02-18 11:08:22,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 11:08:22,652 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 62 transitions. [2023-02-18 11:08:22,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 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) [2023-02-18 11:08:22,652 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 62 transitions. [2023-02-18 11:08:22,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-18 11:08:22,656 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 11:08:22,656 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 11:08:22,661 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-18 11:08:22,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:08:22,863 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 11:08:22,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 11:08:22,863 INFO L85 PathProgramCache]: Analyzing trace with hash -192826428, now seen corresponding path program 5 times [2023-02-18 11:08:22,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 11:08:22,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779096990] [2023-02-18 11:08:22,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 11:08:22,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 11:08:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 11:08:22,930 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-02-18 11:08:22,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 11:08:22,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779096990] [2023-02-18 11:08:22,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779096990] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 11:08:22,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674571292] [2023-02-18 11:08:22,931 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 11:08:22,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:08:22,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 11:08:22,933 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) [2023-02-18 11:08:22,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-18 11:08:22,993 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2023-02-18 11:08:22,993 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 11:08:22,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-18 11:08:22,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 11:08:23,028 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-02-18 11:08:23,029 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 11:08:23,062 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-02-18 11:08:23,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674571292] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 11:08:23,063 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 11:08:23,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2023-02-18 11:08:23,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251130417] [2023-02-18 11:08:23,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 11:08:23,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-18 11:08:23,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 11:08:23,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-18 11:08:23,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-02-18 11:08:23,065 INFO L87 Difference]: Start difference. First operand 56 states and 62 transitions. Second operand has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:23,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 11:08:23,147 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2023-02-18 11:08:23,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 11:08:23,147 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2023-02-18 11:08:23,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 11:08:23,148 INFO L225 Difference]: With dead ends: 66 [2023-02-18 11:08:23,149 INFO L226 Difference]: Without dead ends: 50 [2023-02-18 11:08:23,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 65 SyntacticMatches, 8 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2023-02-18 11:08:23,149 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 159 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 11:08:23,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 21 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 11:08:23,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-02-18 11:08:23,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2023-02-18 11:08:23,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.1111111111111112) internal successors, (50), 45 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) [2023-02-18 11:08:23,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2023-02-18 11:08:23,160 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 39 [2023-02-18 11:08:23,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 11:08:23,161 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2023-02-18 11:08:23,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.857142857142857) internal successors, (54), 14 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:23,161 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2023-02-18 11:08:23,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-02-18 11:08:23,161 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 11:08:23,161 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 11:08:23,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-18 11:08:23,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:08:23,371 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 11:08:23,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 11:08:23,371 INFO L85 PathProgramCache]: Analyzing trace with hash -604138262, now seen corresponding path program 6 times [2023-02-18 11:08:23,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 11:08:23,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031124121] [2023-02-18 11:08:23,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 11:08:23,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 11:08:23,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 11:08:24,741 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 11:08:24,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 11:08:24,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031124121] [2023-02-18 11:08:24,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031124121] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 11:08:24,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030300925] [2023-02-18 11:08:24,742 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 11:08:24,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:08:24,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 11:08:24,743 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) [2023-02-18 11:08:24,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-18 11:08:24,792 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2023-02-18 11:08:24,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 11:08:24,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 66 conjunts are in the unsatisfiable core [2023-02-18 11:08:24,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 11:08:24,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-02-18 11:08:25,809 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 11:08:25,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 79 treesize of output 29 [2023-02-18 11:08:25,876 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 11:08:25,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 11:08:27,336 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-18 11:08:27,337 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030300925] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 11:08:27,337 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 11:08:27,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 29, 26] total 73 [2023-02-18 11:08:27,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95509148] [2023-02-18 11:08:27,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 11:08:27,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2023-02-18 11:08:27,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 11:08:27,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2023-02-18 11:08:27,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=4983, Unknown=0, NotChecked=0, Total=5256 [2023-02-18 11:08:27,340 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 73 states, 73 states have (on average 1.452054794520548) internal successors, (106), 73 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:29,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 11:08:29,937 INFO L93 Difference]: Finished difference Result 81 states and 88 transitions. [2023-02-18 11:08:29,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-02-18 11:08:29,941 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 73 states have (on average 1.452054794520548) internal successors, (106), 73 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2023-02-18 11:08:29,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 11:08:29,941 INFO L225 Difference]: With dead ends: 81 [2023-02-18 11:08:29,941 INFO L226 Difference]: Without dead ends: 77 [2023-02-18 11:08:29,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 36 SyntacticMatches, 17 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2920 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=557, Invalid=8949, Unknown=0, NotChecked=0, Total=9506 [2023-02-18 11:08:29,944 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 14 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 2170 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 2223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-18 11:08:29,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 152 Invalid, 2223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2170 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-02-18 11:08:29,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-02-18 11:08:29,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 67. [2023-02-18 11:08:29,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 66 states have (on average 1.121212121212121) internal successors, (74), 66 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) [2023-02-18 11:08:29,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2023-02-18 11:08:29,952 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 45 [2023-02-18 11:08:29,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 11:08:29,953 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2023-02-18 11:08:29,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 1.452054794520548) internal successors, (106), 73 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:29,953 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2023-02-18 11:08:29,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-02-18 11:08:29,953 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 11:08:29,954 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 11:08:29,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-18 11:08:30,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:08:30,161 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 11:08:30,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 11:08:30,162 INFO L85 PathProgramCache]: Analyzing trace with hash -703050612, now seen corresponding path program 7 times [2023-02-18 11:08:30,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 11:08:30,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525261324] [2023-02-18 11:08:30,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 11:08:30,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 11:08:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 11:08:30,225 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-18 11:08:30,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 11:08:30,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525261324] [2023-02-18 11:08:30,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525261324] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 11:08:30,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244552189] [2023-02-18 11:08:30,226 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 11:08:30,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:08:30,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 11:08:30,227 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) [2023-02-18 11:08:30,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-18 11:08:30,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 11:08:30,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-18 11:08:30,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 11:08:30,357 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-18 11:08:30,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 11:08:30,385 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-18 11:08:30,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244552189] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 11:08:30,385 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 11:08:30,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2023-02-18 11:08:30,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188631831] [2023-02-18 11:08:30,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 11:08:30,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-18 11:08:30,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 11:08:30,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-18 11:08:30,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2023-02-18 11:08:30,388 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:30,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 11:08:30,513 INFO L93 Difference]: Finished difference Result 132 states and 146 transitions. [2023-02-18 11:08:30,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-18 11:08:30,513 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2023-02-18 11:08:30,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 11:08:30,513 INFO L225 Difference]: With dead ends: 132 [2023-02-18 11:08:30,514 INFO L226 Difference]: Without dead ends: 70 [2023-02-18 11:08:30,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 77 SyntacticMatches, 11 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2023-02-18 11:08:30,514 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 49 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 11:08:30,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 68 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 11:08:30,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-02-18 11:08:30,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2023-02-18 11:08:30,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.1176470588235294) internal successors, (76), 68 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:30,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 76 transitions. [2023-02-18 11:08:30,528 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 76 transitions. Word has length 47 [2023-02-18 11:08:30,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 11:08:30,529 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 76 transitions. [2023-02-18 11:08:30,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:30,529 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 76 transitions. [2023-02-18 11:08:30,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-02-18 11:08:30,531 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 11:08:30,531 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 11:08:30,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-18 11:08:30,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:08:30,737 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 11:08:30,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 11:08:30,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1331298990, now seen corresponding path program 8 times [2023-02-18 11:08:30,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 11:08:30,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443254887] [2023-02-18 11:08:30,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 11:08:30,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 11:08:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 11:08:30,804 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-02-18 11:08:30,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 11:08:30,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443254887] [2023-02-18 11:08:30,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443254887] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 11:08:30,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285101775] [2023-02-18 11:08:30,805 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 11:08:30,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:08:30,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 11:08:30,806 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) [2023-02-18 11:08:30,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-18 11:08:30,852 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 11:08:30,852 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 11:08:30,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-18 11:08:30,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 11:08:30,896 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-02-18 11:08:30,896 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 11:08:30,932 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-02-18 11:08:30,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285101775] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 11:08:30,933 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 11:08:30,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2023-02-18 11:08:30,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051821749] [2023-02-18 11:08:30,934 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 11:08:30,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-18 11:08:30,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 11:08:30,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-18 11:08:30,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-02-18 11:08:30,935 INFO L87 Difference]: Start difference. First operand 69 states and 76 transitions. Second operand has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:31,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 11:08:31,046 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2023-02-18 11:08:31,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-18 11:08:31,047 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2023-02-18 11:08:31,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 11:08:31,047 INFO L225 Difference]: With dead ends: 101 [2023-02-18 11:08:31,047 INFO L226 Difference]: Without dead ends: 60 [2023-02-18 11:08:31,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 81 SyntacticMatches, 11 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=152, Invalid=354, Unknown=0, NotChecked=0, Total=506 [2023-02-18 11:08:31,049 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 155 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 11:08:31,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 31 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 11:08:31,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-02-18 11:08:31,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2023-02-18 11:08:31,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.0909090909090908) internal successors, (60), 55 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:31,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2023-02-18 11:08:31,060 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 49 [2023-02-18 11:08:31,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 11:08:31,060 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2023-02-18 11:08:31,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.8823529411764706) internal successors, (49), 17 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:08:31,060 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2023-02-18 11:08:31,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-02-18 11:08:31,061 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 11:08:31,061 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 11:08:31,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-18 11:08:31,266 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,SelfDestructingSolverStorable10 [2023-02-18 11:08:31,266 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 11:08:31,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 11:08:31,267 INFO L85 PathProgramCache]: Analyzing trace with hash -2047700076, now seen corresponding path program 9 times [2023-02-18 11:08:31,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 11:08:31,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292648771] [2023-02-18 11:08:31,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 11:08:31,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 11:08:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 11:08:33,643 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 11:08:33,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 11:08:33,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292648771] [2023-02-18 11:08:33,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292648771] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 11:08:33,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528793276] [2023-02-18 11:08:33,643 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 11:08:33,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:08:33,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 11:08:33,644 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) [2023-02-18 11:08:33,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-18 11:08:33,702 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-02-18 11:08:33,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 11:08:33,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 85 conjunts are in the unsatisfiable core [2023-02-18 11:08:33,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 11:08:33,746 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-02-18 11:08:36,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-18 11:08:36,966 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 11:08:36,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 90 treesize of output 217 [2023-02-18 11:08:37,414 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:08:37,436 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:08:37,524 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:08:37,534 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:08:37,541 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:08:37,559 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:08:37,575 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:08:37,580 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:08:37,586 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:08:37,604 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:08:37,729 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:08:37,732 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:08:37,738 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:08:37,743 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:08:37,763 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:08:37,794 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:08:37,799 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:08:37,819 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:08:37,825 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:08:38,226 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:09:21,659 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 7 proven. 64 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-18 11:09:21,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 11:09:35,866 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-18 11:09:35,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528793276] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 11:09:35,866 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 11:09:35,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 40, 38] total 116 [2023-02-18 11:09:35,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131344113] [2023-02-18 11:09:35,867 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 11:09:35,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2023-02-18 11:09:35,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 11:09:35,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2023-02-18 11:09:35,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=689, Invalid=12651, Unknown=0, NotChecked=0, Total=13340 [2023-02-18 11:09:35,870 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand has 116 states, 116 states have (on average 1.2844827586206897) internal successors, (149), 116 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:10:12,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 11:10:12,934 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2023-02-18 11:10:12,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-02-18 11:10:12,934 INFO L78 Accepts]: Start accepts. Automaton has has 116 states, 116 states have (on average 1.2844827586206897) internal successors, (149), 116 states have internal predecessors, (149), 0 states have call successors, (0), 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 55 [2023-02-18 11:10:12,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 11:10:12,937 INFO L225 Difference]: With dead ends: 97 [2023-02-18 11:10:12,938 INFO L226 Difference]: Without dead ends: 93 [2023-02-18 11:10:12,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 35 SyntacticMatches, 5 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6920 ImplicationChecksByTransitivity, 53.2s TimeCoverageRelationStatistics Valid=1601, Invalid=26455, Unknown=0, NotChecked=0, Total=28056 [2023-02-18 11:10:12,942 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 45 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 3722 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 3849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 3722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-02-18 11:10:12,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 199 Invalid, 3849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 3722 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-02-18 11:10:12,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-02-18 11:10:12,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 81. [2023-02-18 11:10:12,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.1) internal successors, (88), 80 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) [2023-02-18 11:10:12,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 88 transitions. [2023-02-18 11:10:12,969 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 88 transitions. Word has length 55 [2023-02-18 11:10:12,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 11:10:12,969 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 88 transitions. [2023-02-18 11:10:12,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 116 states, 116 states have (on average 1.2844827586206897) internal successors, (149), 116 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:10:12,970 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 88 transitions. [2023-02-18 11:10:12,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-02-18 11:10:12,970 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 11:10:12,970 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 11:10:12,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-18 11:10:13,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:10:13,175 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 11:10:13,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 11:10:13,175 INFO L85 PathProgramCache]: Analyzing trace with hash -691517258, now seen corresponding path program 10 times [2023-02-18 11:10:13,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 11:10:13,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076400533] [2023-02-18 11:10:13,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 11:10:13,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 11:10:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 11:10:13,273 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-02-18 11:10:13,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 11:10:13,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076400533] [2023-02-18 11:10:13,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076400533] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 11:10:13,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362908214] [2023-02-18 11:10:13,274 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 11:10:13,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:10:13,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 11:10:13,275 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) [2023-02-18 11:10:13,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-18 11:10:13,324 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 11:10:13,325 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 11:10:13,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 11:10:13,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 11:10:13,411 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-02-18 11:10:13,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 11:10:13,480 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-02-18 11:10:13,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362908214] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 11:10:13,480 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 11:10:13,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2023-02-18 11:10:13,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579384436] [2023-02-18 11:10:13,480 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 11:10:13,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 11:10:13,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 11:10:13,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 11:10:13,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2023-02-18 11:10:13,481 INFO L87 Difference]: Start difference. First operand 81 states and 88 transitions. Second operand has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:10:13,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 11:10:13,803 INFO L93 Difference]: Finished difference Result 206 states and 223 transitions. [2023-02-18 11:10:13,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-02-18 11:10:13,803 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 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 57 [2023-02-18 11:10:13,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 11:10:13,804 INFO L225 Difference]: With dead ends: 206 [2023-02-18 11:10:13,804 INFO L226 Difference]: Without dead ends: 100 [2023-02-18 11:10:13,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 93 SyntacticMatches, 10 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=937, Unknown=0, NotChecked=0, Total=1190 [2023-02-18 11:10:13,805 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 219 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 11:10:13,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 58 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 11:10:13,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-02-18 11:10:13,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 84. [2023-02-18 11:10:13,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 83 states have (on average 1.0843373493975903) internal successors, (90), 83 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:10:13,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 90 transitions. [2023-02-18 11:10:13,830 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 90 transitions. Word has length 57 [2023-02-18 11:10:13,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 11:10:13,830 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 90 transitions. [2023-02-18 11:10:13,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:10:13,830 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions. [2023-02-18 11:10:13,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-02-18 11:10:13,831 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 11:10:13,831 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 11:10:13,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-18 11:10:14,036 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,SelfDestructingSolverStorable12 [2023-02-18 11:10:14,036 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 11:10:14,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 11:10:14,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1701588072, now seen corresponding path program 11 times [2023-02-18 11:10:14,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 11:10:14,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052070928] [2023-02-18 11:10:14,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 11:10:14,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 11:10:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 11:10:14,119 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 9 proven. 32 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-02-18 11:10:14,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 11:10:14,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052070928] [2023-02-18 11:10:14,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052070928] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 11:10:14,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174312982] [2023-02-18 11:10:14,120 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 11:10:14,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:10:14,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 11:10:14,122 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) [2023-02-18 11:10:14,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-18 11:10:14,213 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-02-18 11:10:14,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 11:10:14,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-18 11:10:14,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 11:10:14,292 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-02-18 11:10:14,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 11:10:14,358 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-02-18 11:10:14,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174312982] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 11:10:14,358 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 11:10:14,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2023-02-18 11:10:14,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488516270] [2023-02-18 11:10:14,359 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 11:10:14,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 11:10:14,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 11:10:14,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 11:10:14,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2023-02-18 11:10:14,360 INFO L87 Difference]: Start difference. First operand 84 states and 90 transitions. Second operand has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:10:14,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 11:10:14,557 INFO L93 Difference]: Finished difference Result 94 states and 100 transitions. [2023-02-18 11:10:14,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-18 11:10:14,557 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 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 59 [2023-02-18 11:10:14,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 11:10:14,558 INFO L225 Difference]: With dead ends: 94 [2023-02-18 11:10:14,558 INFO L226 Difference]: Without dead ends: 70 [2023-02-18 11:10:14,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 96 SyntacticMatches, 11 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=236, Invalid=756, Unknown=0, NotChecked=0, Total=992 [2023-02-18 11:10:14,558 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 229 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 11:10:14,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 30 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 11:10:14,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-02-18 11:10:14,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2023-02-18 11:10:14,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.0769230769230769) internal successors, (70), 65 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:10:14,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2023-02-18 11:10:14,577 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 59 [2023-02-18 11:10:14,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 11:10:14,577 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2023-02-18 11:10:14,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.75) internal successors, (66), 24 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 11:10:14,577 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2023-02-18 11:10:14,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-02-18 11:10:14,578 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 11:10:14,578 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 11:10:14,585 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-18 11:10:14,778 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,SelfDestructingSolverStorable13 [2023-02-18 11:10:14,778 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 11:10:14,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 11:10:14,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1079638594, now seen corresponding path program 12 times [2023-02-18 11:10:14,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 11:10:14,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80864105] [2023-02-18 11:10:14,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 11:10:14,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 11:10:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 11:10:17,798 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 1 proven. 124 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 11:10:17,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 11:10:17,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80864105] [2023-02-18 11:10:17,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80864105] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 11:10:17,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360942588] [2023-02-18 11:10:17,798 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 11:10:17,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 11:10:17,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 11:10:17,800 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) [2023-02-18 11:10:17,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-18 11:10:17,901 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2023-02-18 11:10:17,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 11:10:17,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 105 conjunts are in the unsatisfiable core [2023-02-18 11:10:17,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 11:10:22,518 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-18 11:10:22,519 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 117 treesize of output 336 [2023-02-18 11:10:22,526 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,529 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,533 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,538 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,541 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,544 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-18 11:10:22,551 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,552 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,556 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,560 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,561 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,566 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,569 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,571 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-18 11:10:22,577 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,580 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-18 11:10:22,585 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2023-02-18 11:10:22,598 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,601 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-18 11:10:22,608 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,609 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,613 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,617 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,618 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,622 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,625 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-18 11:10:22,641 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,645 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,649 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,651 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,655 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,661 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,665 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,668 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,671 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-18 11:10:22,684 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,688 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,691 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,698 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,701 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,704 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,706 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,714 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,750 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,764 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,771 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,772 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,776 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,782 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,787 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,789 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,793 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,802 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,806 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,808 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,812 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-18 11:10:22,819 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,822 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,824 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,839 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,845 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,852 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,856 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,860 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,898 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,927 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,955 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,969 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,979 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:22,984 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:22,989 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,000 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,009 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,013 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,015 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:23,020 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,029 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,039 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,041 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:23,046 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,052 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,054 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:23,059 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:23,062 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-18 11:10:23,070 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,074 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,076 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:23,095 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,120 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,125 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,130 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:23,134 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,141 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,297 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,306 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,428 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,454 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,475 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,484 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-18 11:10:23,490 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-18 11:10:23,493 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts.