./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 [2023-02-17 04:59:04,085 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 04:59:04,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 04:59:04,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 04:59:04,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 04:59:04,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 04:59:04,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 04:59:04,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 04:59:04,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 04:59:04,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 04:59:04,126 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 04:59:04,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 04:59:04,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 04:59:04,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 04:59:04,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 04:59:04,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 04:59:04,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 04:59:04,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 04:59:04,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 04:59:04,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 04:59:04,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 04:59:04,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 04:59:04,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 04:59:04,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 04:59:04,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 04:59:04,148 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 04:59:04,148 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 04:59:04,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 04:59:04,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 04:59:04,150 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 04:59:04,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 04:59:04,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 04:59:04,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 04:59:04,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 04:59:04,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 04:59:04,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 04:59:04,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 04:59:04,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 04:59:04,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 04:59:04,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 04:59:04,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 04:59:04,157 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-17 04:59:04,185 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 04:59:04,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 04:59:04,185 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 04:59:04,186 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 04:59:04,186 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 04:59:04,186 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 04:59:04,187 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 04:59:04,187 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 04:59:04,187 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 04:59:04,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 04:59:04,188 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 04:59:04,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 04:59:04,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 04:59:04,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 04:59:04,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 04:59:04,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 04:59:04,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 04:59:04,189 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 04:59:04,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 04:59:04,189 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 04:59:04,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 04:59:04,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 04:59:04,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 04:59:04,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 04:59:04,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 04:59:04,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 04:59:04,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 04:59:04,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 04:59:04,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 04:59:04,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 04:59:04,191 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 04:59:04,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 04:59:04,192 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 04:59:04,192 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 04:59:04,192 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 04:59:04,192 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64e2b591ee375a99f019d69fefe326e9fd46db25f76a67e4f3bee333adbec68f [2023-02-17 04:59:04,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 04:59:04,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 04:59:04,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 04:59:04,398 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 04:59:04,399 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 04:59:04,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-crafted/zero_sum_m2.c [2023-02-17 04:59:05,342 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 04:59:05,488 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 04:59:05,488 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-crafted/zero_sum_m2.c [2023-02-17 04:59:05,493 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2e321b56/3c1eadeab3e8442b8e1dbbb9d9fd3150/FLAG5dab621d5 [2023-02-17 04:59:05,505 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2e321b56/3c1eadeab3e8442b8e1dbbb9d9fd3150 [2023-02-17 04:59:05,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 04:59:05,509 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 04:59:05,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 04:59:05,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 04:59:05,515 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 04:59:05,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 04:59:05" (1/1) ... [2023-02-17 04:59:05,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@342eb95c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:59:05, skipping insertion in model container [2023-02-17 04:59:05,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 04:59:05" (1/1) ... [2023-02-17 04:59:05,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 04:59:05,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 04:59:05,646 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] [2023-02-17 04:59:05,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 04:59:05,673 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 04:59:05,684 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] [2023-02-17 04:59:05,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 04:59:05,702 INFO L208 MainTranslator]: Completed translation [2023-02-17 04:59:05,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:59:05 WrapperNode [2023-02-17 04:59:05,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 04:59:05,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 04:59:05,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 04:59:05,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 04:59:05,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:59:05" (1/1) ... [2023-02-17 04:59:05,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:59:05" (1/1) ... [2023-02-17 04:59:05,724 INFO L138 Inliner]: procedures = 15, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2023-02-17 04:59:05,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 04:59:05,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 04:59:05,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 04:59:05,725 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 04:59:05,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:59:05" (1/1) ... [2023-02-17 04:59:05,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:59:05" (1/1) ... [2023-02-17 04:59:05,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:59:05" (1/1) ... [2023-02-17 04:59:05,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:59:05" (1/1) ... [2023-02-17 04:59:05,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:59:05" (1/1) ... [2023-02-17 04:59:05,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:59:05" (1/1) ... [2023-02-17 04:59:05,757 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:59:05" (1/1) ... [2023-02-17 04:59:05,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:59:05" (1/1) ... [2023-02-17 04:59:05,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 04:59:05,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 04:59:05,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 04:59:05,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 04:59:05,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:59:05" (1/1) ... [2023-02-17 04:59:05,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 04:59:05,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:59:05,788 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) [2023-02-17 04:59:05,789 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 [2023-02-17 04:59:05,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 04:59:05,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 04:59:05,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-17 04:59:05,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-17 04:59:05,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 04:59:05,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 04:59:05,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-17 04:59:05,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-17 04:59:05,871 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 04:59:05,872 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 04:59:06,006 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 04:59:06,022 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 04:59:06,023 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2023-02-17 04:59:06,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 04:59:06 BoogieIcfgContainer [2023-02-17 04:59:06,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 04:59:06,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 04:59:06,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 04:59:06,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 04:59:06,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 04:59:05" (1/3) ... [2023-02-17 04:59:06,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ab0e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 04:59:06, skipping insertion in model container [2023-02-17 04:59:06,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 04:59:05" (2/3) ... [2023-02-17 04:59:06,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ab0e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 04:59:06, skipping insertion in model container [2023-02-17 04:59:06,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 04:59:06" (3/3) ... [2023-02-17 04:59:06,049 INFO L112 eAbstractionObserver]: Analyzing ICFG zero_sum_m2.c [2023-02-17 04:59:06,065 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 04:59:06,065 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-17 04:59:06,114 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 04:59:06,119 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;@29882469, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 04:59:06,119 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-17 04:59:06,122 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) [2023-02-17 04:59:06,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-17 04:59:06,125 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 04:59:06,126 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 04:59:06,126 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 04:59:06,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:59:06,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1122046426, now seen corresponding path program 1 times [2023-02-17 04:59:06,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:59:06,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104850362] [2023-02-17 04:59:06,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:59:06,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:59:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:59:06,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:59:06,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 04:59:06,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104850362] [2023-02-17 04:59:06,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104850362] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 04:59:06,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 04:59:06,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-17 04:59:06,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487808871] [2023-02-17 04:59:06,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 04:59:06,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-17 04:59:06,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 04:59:06,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-17 04:59:06,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-17 04:59:06,351 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) [2023-02-17 04:59:06,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 04:59:06,366 INFO L93 Difference]: Finished difference Result 47 states and 66 transitions. [2023-02-17 04:59:06,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-17 04:59:06,368 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 [2023-02-17 04:59:06,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 04:59:06,373 INFO L225 Difference]: With dead ends: 47 [2023-02-17 04:59:06,373 INFO L226 Difference]: Without dead ends: 21 [2023-02-17 04:59:06,375 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 [2023-02-17 04:59:06,379 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 [2023-02-17 04:59:06,380 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] [2023-02-17 04:59:06,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-02-17 04:59:06,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-02-17 04:59:06,400 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) [2023-02-17 04:59:06,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2023-02-17 04:59:06,402 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 15 [2023-02-17 04:59:06,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 04:59:06,402 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2023-02-17 04:59:06,402 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) [2023-02-17 04:59:06,403 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2023-02-17 04:59:06,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-17 04:59:06,403 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 04:59:06,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 04:59:06,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 04:59:06,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 04:59:06,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:59:06,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1896542740, now seen corresponding path program 1 times [2023-02-17 04:59:06,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:59:06,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617811299] [2023-02-17 04:59:06,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:59:06,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:59:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:59:06,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:59:06,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 04:59:06,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617811299] [2023-02-17 04:59:06,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617811299] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 04:59:06,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 04:59:06,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 04:59:06,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484259159] [2023-02-17 04:59:06,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 04:59:06,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 04:59:06,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 04:59:06,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 04:59:06,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 04:59:06,465 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) [2023-02-17 04:59:06,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 04:59:06,496 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2023-02-17 04:59:06,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 04:59:06,497 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 [2023-02-17 04:59:06,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 04:59:06,497 INFO L225 Difference]: With dead ends: 39 [2023-02-17 04:59:06,497 INFO L226 Difference]: Without dead ends: 23 [2023-02-17 04:59:06,498 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 [2023-02-17 04:59:06,499 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 [2023-02-17 04:59:06,499 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] [2023-02-17 04:59:06,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-17 04:59:06,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2023-02-17 04:59:06,502 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) [2023-02-17 04:59:06,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2023-02-17 04:59:06,503 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2023-02-17 04:59:06,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 04:59:06,503 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2023-02-17 04:59:06,503 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) [2023-02-17 04:59:06,503 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2023-02-17 04:59:06,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-17 04:59:06,509 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 04:59:06,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 04:59:06,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-17 04:59:06,509 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 04:59:06,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:59:06,510 INFO L85 PathProgramCache]: Analyzing trace with hash -66597874, now seen corresponding path program 1 times [2023-02-17 04:59:06,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:59:06,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571973192] [2023-02-17 04:59:06,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:59:06,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:59:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:59:06,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-17 04:59:06,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 04:59:06,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571973192] [2023-02-17 04:59:06,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571973192] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 04:59:06,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 04:59:06,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 04:59:06,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484635067] [2023-02-17 04:59:06,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 04:59:06,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 04:59:06,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 04:59:06,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 04:59:06,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-17 04:59:06,584 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) [2023-02-17 04:59:06,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 04:59:06,654 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions. [2023-02-17 04:59:06,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 04:59:06,654 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 [2023-02-17 04:59:06,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 04:59:06,655 INFO L225 Difference]: With dead ends: 43 [2023-02-17 04:59:06,655 INFO L226 Difference]: Without dead ends: 30 [2023-02-17 04:59:06,655 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 [2023-02-17 04:59:06,656 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, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 04:59:06,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 15 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 04:59:06,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-17 04:59:06,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2023-02-17 04:59:06,659 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) [2023-02-17 04:59:06,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2023-02-17 04:59:06,660 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 17 [2023-02-17 04:59:06,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 04:59:06,660 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2023-02-17 04:59:06,661 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) [2023-02-17 04:59:06,661 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2023-02-17 04:59:06,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-17 04:59:06,661 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 04:59:06,661 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] [2023-02-17 04:59:06,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-17 04:59:06,662 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 04:59:06,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:59:06,662 INFO L85 PathProgramCache]: Analyzing trace with hash -2060422634, now seen corresponding path program 1 times [2023-02-17 04:59:06,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:59:06,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691212899] [2023-02-17 04:59:06,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:59:06,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:59:06,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:59:06,768 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-17 04:59:06,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 04:59:06,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691212899] [2023-02-17 04:59:06,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691212899] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 04:59:06,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295778897] [2023-02-17 04:59:06,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:59:06,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 04:59:06,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:59:06,772 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) [2023-02-17 04:59:06,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 04:59:06,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:59:06,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 04:59:06,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:59:06,883 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-17 04:59:06,884 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 04:59:06,922 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-17 04:59:06,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295778897] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 04:59:06,923 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 04:59:06,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-02-17 04:59:06,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637481221] [2023-02-17 04:59:06,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 04:59:06,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-17 04:59:06,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 04:59:06,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-17 04:59:06,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2023-02-17 04:59:06,925 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) [2023-02-17 04:59:06,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 04:59:06,959 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2023-02-17 04:59:06,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-17 04:59:06,959 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 [2023-02-17 04:59:06,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 04:59:06,960 INFO L225 Difference]: With dead ends: 49 [2023-02-17 04:59:06,961 INFO L226 Difference]: Without dead ends: 29 [2023-02-17 04:59:06,961 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 [2023-02-17 04:59:06,963 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 [2023-02-17 04:59:06,964 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] [2023-02-17 04:59:06,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-02-17 04:59:06,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2023-02-17 04:59:06,967 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) [2023-02-17 04:59:06,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2023-02-17 04:59:06,968 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 25 [2023-02-17 04:59:06,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 04:59:06,968 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2023-02-17 04:59:06,968 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) [2023-02-17 04:59:06,968 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2023-02-17 04:59:06,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-17 04:59:06,969 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 04:59:06,969 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] [2023-02-17 04:59:06,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-17 04:59:07,169 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 [2023-02-17 04:59:07,170 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 04:59:07,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:59:07,170 INFO L85 PathProgramCache]: Analyzing trace with hash -959615560, now seen corresponding path program 2 times [2023-02-17 04:59:07,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:59:07,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663267461] [2023-02-17 04:59:07,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:59:07,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:59:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:59:07,232 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-02-17 04:59:07,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 04:59:07,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663267461] [2023-02-17 04:59:07,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663267461] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 04:59:07,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239298736] [2023-02-17 04:59:07,233 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 04:59:07,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 04:59:07,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:59:07,234 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) [2023-02-17 04:59:07,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 04:59:07,286 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 04:59:07,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 04:59:07,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-17 04:59:07,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:59:07,308 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-02-17 04:59:07,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 04:59:07,336 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-02-17 04:59:07,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239298736] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 04:59:07,339 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 04:59:07,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2023-02-17 04:59:07,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963361150] [2023-02-17 04:59:07,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 04:59:07,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-17 04:59:07,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 04:59:07,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-17 04:59:07,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2023-02-17 04:59:07,341 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) [2023-02-17 04:59:07,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 04:59:07,422 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2023-02-17 04:59:07,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 04:59:07,423 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 [2023-02-17 04:59:07,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 04:59:07,423 INFO L225 Difference]: With dead ends: 56 [2023-02-17 04:59:07,424 INFO L226 Difference]: Without dead ends: 40 [2023-02-17 04:59:07,424 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 [2023-02-17 04:59:07,426 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 31 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-02-17 04:59:07,426 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] [2023-02-17 04:59:07,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-17 04:59:07,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2023-02-17 04:59:07,431 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) [2023-02-17 04:59:07,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2023-02-17 04:59:07,432 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 27 [2023-02-17 04:59:07,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 04:59:07,433 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2023-02-17 04:59:07,433 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) [2023-02-17 04:59:07,433 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2023-02-17 04:59:07,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-17 04:59:07,434 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 04:59:07,434 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] [2023-02-17 04:59:07,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-17 04:59:07,639 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 [2023-02-17 04:59:07,639 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 04:59:07,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:59:07,640 INFO L85 PathProgramCache]: Analyzing trace with hash -2048824896, now seen corresponding path program 3 times [2023-02-17 04:59:07,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:59:07,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350587076] [2023-02-17 04:59:07,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:59:07,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:59:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:59:08,945 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:59:08,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 04:59:08,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350587076] [2023-02-17 04:59:08,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350587076] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 04:59:08,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819888854] [2023-02-17 04:59:08,948 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 04:59:08,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 04:59:08,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:59:08,949 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) [2023-02-17 04:59:08,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-17 04:59:08,996 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-02-17 04:59:08,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 04:59:08,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-17 04:59:08,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:59:09,708 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 [2023-02-17 04:59:09,798 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:59:09,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 04:59:11,052 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 04:59:11,052 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 [2023-02-17 04:59:11,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 04:59:11,278 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-17 04:59:11,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 04:59:11,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 04:59:11,281 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 04:59:11,281 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 [2023-02-17 04:59:12,136 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:59:12,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819888854] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 04:59:12,136 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 04:59:12,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 25, 25] total 61 [2023-02-17 04:59:12,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297827970] [2023-02-17 04:59:12,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 04:59:12,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2023-02-17 04:59:12,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 04:59:12,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2023-02-17 04:59:12,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=3405, Unknown=0, NotChecked=0, Total=3660 [2023-02-17 04:59:12,139 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) [2023-02-17 04:59:15,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 04:59:15,154 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2023-02-17 04:59:15,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-02-17 04:59:15,155 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 [2023-02-17 04:59:15,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 04:59:15,156 INFO L225 Difference]: With dead ends: 87 [2023-02-17 04:59:15,156 INFO L226 Difference]: Without dead ends: 83 [2023-02-17 04:59:15,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 26 SyntacticMatches, 9 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2141 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=534, Invalid=7298, Unknown=0, NotChecked=0, Total=7832 [2023-02-17 04:59:15,159 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 [2023-02-17 04:59:15,159 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] [2023-02-17 04:59:15,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-02-17 04:59:15,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 53. [2023-02-17 04:59:15,174 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) [2023-02-17 04:59:15,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2023-02-17 04:59:15,175 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 35 [2023-02-17 04:59:15,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 04:59:15,175 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2023-02-17 04:59:15,175 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) [2023-02-17 04:59:15,176 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2023-02-17 04:59:15,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-17 04:59:15,176 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 04:59:15,176 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] [2023-02-17 04:59:15,181 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-17 04:59:15,380 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 [2023-02-17 04:59:15,381 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 04:59:15,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:59:15,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1772469278, now seen corresponding path program 4 times [2023-02-17 04:59:15,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:59:15,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256803690] [2023-02-17 04:59:15,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:59:15,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:59:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:59:15,443 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-17 04:59:15,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 04:59:15,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256803690] [2023-02-17 04:59:15,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256803690] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 04:59:15,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892632146] [2023-02-17 04:59:15,443 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-17 04:59:15,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 04:59:15,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:59:15,445 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) [2023-02-17 04:59:15,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-17 04:59:15,485 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-17 04:59:15,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 04:59:15,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-17 04:59:15,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:59:15,523 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-17 04:59:15,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 04:59:15,550 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-17 04:59:15,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892632146] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 04:59:15,550 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 04:59:15,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2023-02-17 04:59:15,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95084169] [2023-02-17 04:59:15,552 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 04:59:15,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-17 04:59:15,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 04:59:15,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-17 04:59:15,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-02-17 04:59:15,554 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) [2023-02-17 04:59:15,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 04:59:15,722 INFO L93 Difference]: Finished difference Result 138 states and 155 transitions. [2023-02-17 04:59:15,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-17 04:59:15,722 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 [2023-02-17 04:59:15,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 04:59:15,724 INFO L225 Difference]: With dead ends: 138 [2023-02-17 04:59:15,724 INFO L226 Difference]: Without dead ends: 72 [2023-02-17 04:59:15,725 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 [2023-02-17 04:59:15,726 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 [2023-02-17 04:59:15,726 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] [2023-02-17 04:59:15,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-02-17 04:59:15,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 56. [2023-02-17 04:59:15,740 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) [2023-02-17 04:59:15,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 62 transitions. [2023-02-17 04:59:15,741 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 62 transitions. Word has length 37 [2023-02-17 04:59:15,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 04:59:15,741 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 62 transitions. [2023-02-17 04:59:15,741 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) [2023-02-17 04:59:15,741 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 62 transitions. [2023-02-17 04:59:15,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-17 04:59:15,742 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 04:59:15,742 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] [2023-02-17 04:59:15,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-17 04:59:15,946 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 [2023-02-17 04:59:15,947 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 04:59:15,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:59:15,947 INFO L85 PathProgramCache]: Analyzing trace with hash -192826428, now seen corresponding path program 5 times [2023-02-17 04:59:15,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:59:15,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287516710] [2023-02-17 04:59:15,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:59:15,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:59:15,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:59:16,015 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-02-17 04:59:16,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 04:59:16,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287516710] [2023-02-17 04:59:16,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287516710] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 04:59:16,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188163065] [2023-02-17 04:59:16,016 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-17 04:59:16,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 04:59:16,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:59:16,018 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) [2023-02-17 04:59:16,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-17 04:59:16,075 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2023-02-17 04:59:16,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 04:59:16,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-17 04:59:16,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:59:16,107 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-02-17 04:59:16,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 04:59:16,137 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-02-17 04:59:16,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188163065] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 04:59:16,137 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 04:59:16,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 14 [2023-02-17 04:59:16,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169796143] [2023-02-17 04:59:16,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 04:59:16,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-17 04:59:16,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 04:59:16,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-17 04:59:16,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-02-17 04:59:16,139 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) [2023-02-17 04:59:16,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 04:59:16,226 INFO L93 Difference]: Finished difference Result 66 states and 72 transitions. [2023-02-17 04:59:16,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-17 04:59:16,227 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 [2023-02-17 04:59:16,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 04:59:16,228 INFO L225 Difference]: With dead ends: 66 [2023-02-17 04:59:16,229 INFO L226 Difference]: Without dead ends: 50 [2023-02-17 04:59:16,229 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 [2023-02-17 04:59:16,231 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 159 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2023-02-17 04:59:16,231 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] [2023-02-17 04:59:16,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-02-17 04:59:16,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2023-02-17 04:59:16,242 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) [2023-02-17 04:59:16,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2023-02-17 04:59:16,243 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 39 [2023-02-17 04:59:16,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 04:59:16,243 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2023-02-17 04:59:16,243 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) [2023-02-17 04:59:16,243 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2023-02-17 04:59:16,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-02-17 04:59:16,244 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 04:59:16,244 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] [2023-02-17 04:59:16,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-17 04:59:16,448 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 [2023-02-17 04:59:16,449 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 04:59:16,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:59:16,449 INFO L85 PathProgramCache]: Analyzing trace with hash -604138262, now seen corresponding path program 6 times [2023-02-17 04:59:16,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:59:16,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928457226] [2023-02-17 04:59:16,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:59:16,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:59:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:59:17,838 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:59:17,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 04:59:17,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928457226] [2023-02-17 04:59:17,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928457226] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 04:59:17,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108758875] [2023-02-17 04:59:17,838 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-17 04:59:17,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 04:59:17,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:59:17,840 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) [2023-02-17 04:59:17,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-17 04:59:17,887 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2023-02-17 04:59:17,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 04:59:17,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 66 conjunts are in the unsatisfiable core [2023-02-17 04:59:17,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:59:17,907 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 [2023-02-17 04:59:18,930 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 04:59:18,930 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 [2023-02-17 04:59:18,997 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:59:18,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 04:59:20,442 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-17 04:59:20,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108758875] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 04:59:20,443 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 04:59:20,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 29, 26] total 73 [2023-02-17 04:59:20,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823591211] [2023-02-17 04:59:20,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 04:59:20,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2023-02-17 04:59:20,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 04:59:20,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2023-02-17 04:59:20,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=4983, Unknown=0, NotChecked=0, Total=5256 [2023-02-17 04:59:20,449 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) [2023-02-17 04:59:23,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 04:59:23,105 INFO L93 Difference]: Finished difference Result 81 states and 88 transitions. [2023-02-17 04:59:23,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-02-17 04:59:23,105 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 [2023-02-17 04:59:23,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 04:59:23,106 INFO L225 Difference]: With dead ends: 81 [2023-02-17 04:59:23,106 INFO L226 Difference]: Without dead ends: 77 [2023-02-17 04:59:23,107 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 [2023-02-17 04:59:23,108 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, 1.3s IncrementalHoareTripleChecker+Time [2023-02-17 04:59:23,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 152 Invalid, 2223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2170 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-02-17 04:59:23,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-02-17 04:59:23,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 67. [2023-02-17 04:59:23,118 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) [2023-02-17 04:59:23,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2023-02-17 04:59:23,118 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 45 [2023-02-17 04:59:23,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 04:59:23,120 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2023-02-17 04:59:23,120 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) [2023-02-17 04:59:23,120 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2023-02-17 04:59:23,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-02-17 04:59:23,120 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 04:59:23,121 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] [2023-02-17 04:59:23,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-17 04:59:23,325 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 [2023-02-17 04:59:23,326 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 04:59:23,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:59:23,326 INFO L85 PathProgramCache]: Analyzing trace with hash -703050612, now seen corresponding path program 7 times [2023-02-17 04:59:23,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:59:23,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168652450] [2023-02-17 04:59:23,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:59:23,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:59:23,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:59:23,390 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-17 04:59:23,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 04:59:23,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168652450] [2023-02-17 04:59:23,391 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168652450] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 04:59:23,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348710748] [2023-02-17 04:59:23,391 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-17 04:59:23,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 04:59:23,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:59:23,393 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) [2023-02-17 04:59:23,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-17 04:59:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:59:23,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-17 04:59:23,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:59:23,469 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-17 04:59:23,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 04:59:23,502 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-17 04:59:23,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348710748] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 04:59:23,502 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 04:59:23,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2023-02-17 04:59:23,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772150975] [2023-02-17 04:59:23,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 04:59:23,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-17 04:59:23,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 04:59:23,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-17 04:59:23,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2023-02-17 04:59:23,504 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) [2023-02-17 04:59:23,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 04:59:23,633 INFO L93 Difference]: Finished difference Result 132 states and 146 transitions. [2023-02-17 04:59:23,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-17 04:59:23,634 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 [2023-02-17 04:59:23,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 04:59:23,635 INFO L225 Difference]: With dead ends: 132 [2023-02-17 04:59:23,635 INFO L226 Difference]: Without dead ends: 70 [2023-02-17 04:59:23,635 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 [2023-02-17 04:59:23,636 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 [2023-02-17 04:59:23,636 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] [2023-02-17 04:59:23,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-02-17 04:59:23,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2023-02-17 04:59:23,651 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) [2023-02-17 04:59:23,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 76 transitions. [2023-02-17 04:59:23,652 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 76 transitions. Word has length 47 [2023-02-17 04:59:23,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 04:59:23,652 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 76 transitions. [2023-02-17 04:59:23,652 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) [2023-02-17 04:59:23,652 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 76 transitions. [2023-02-17 04:59:23,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-02-17 04:59:23,653 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 04:59:23,653 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] [2023-02-17 04:59:23,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-17 04:59:23,857 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 [2023-02-17 04:59:23,857 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 04:59:23,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:59:23,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1331298990, now seen corresponding path program 8 times [2023-02-17 04:59:23,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:59:23,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35378817] [2023-02-17 04:59:23,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:59:23,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:59:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:59:23,922 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-02-17 04:59:23,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 04:59:23,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35378817] [2023-02-17 04:59:23,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35378817] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 04:59:23,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470357082] [2023-02-17 04:59:23,923 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 04:59:23,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 04:59:23,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:59:23,925 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) [2023-02-17 04:59:23,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-17 04:59:23,970 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 04:59:23,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 04:59:23,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-17 04:59:23,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:59:24,011 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-02-17 04:59:24,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 04:59:24,057 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-02-17 04:59:24,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470357082] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 04:59:24,058 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 04:59:24,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 17 [2023-02-17 04:59:24,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030198039] [2023-02-17 04:59:24,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 04:59:24,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-17 04:59:24,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 04:59:24,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-17 04:59:24,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-02-17 04:59:24,061 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) [2023-02-17 04:59:24,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 04:59:24,177 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2023-02-17 04:59:24,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-17 04:59:24,177 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 [2023-02-17 04:59:24,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 04:59:24,178 INFO L225 Difference]: With dead ends: 101 [2023-02-17 04:59:24,178 INFO L226 Difference]: Without dead ends: 60 [2023-02-17 04:59:24,178 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 [2023-02-17 04:59:24,179 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 [2023-02-17 04:59:24,179 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] [2023-02-17 04:59:24,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-02-17 04:59:24,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2023-02-17 04:59:24,187 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) [2023-02-17 04:59:24,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2023-02-17 04:59:24,188 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 49 [2023-02-17 04:59:24,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 04:59:24,188 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2023-02-17 04:59:24,188 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) [2023-02-17 04:59:24,188 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2023-02-17 04:59:24,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-02-17 04:59:24,189 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 04:59:24,189 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] [2023-02-17 04:59:24,196 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-17 04:59:24,393 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 [2023-02-17 04:59:24,394 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 04:59:24,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 04:59:24,395 INFO L85 PathProgramCache]: Analyzing trace with hash -2047700076, now seen corresponding path program 9 times [2023-02-17 04:59:24,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 04:59:24,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982293609] [2023-02-17 04:59:24,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 04:59:24,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 04:59:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 04:59:26,776 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 04:59:26,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 04:59:26,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982293609] [2023-02-17 04:59:26,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982293609] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 04:59:26,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090380596] [2023-02-17 04:59:26,777 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 04:59:26,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 04:59:26,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 04:59:26,778 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) [2023-02-17 04:59:26,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-17 04:59:26,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-02-17 04:59:26,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 04:59:26,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 85 conjunts are in the unsatisfiable core [2023-02-17 04:59:26,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 04:59:26,884 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 [2023-02-17 04:59:30,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-17 04:59:30,152 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 04:59:30,152 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 [2023-02-17 04:59:30,644 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 04:59:30,666 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 04:59:30,754 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 04:59:30,764 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 04:59:30,771 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 04:59:30,792 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 04:59:30,795 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 04:59:30,801 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 04:59:30,806 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 04:59:30,825 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 04:59:30,957 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 04:59:30,961 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 04:59:30,967 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 04:59:30,973 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 04:59:30,993 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 04:59:31,026 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 04:59:31,031 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 04:59:31,052 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 04:59:31,058 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 04:59:31,468 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:00:16,246 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 7 proven. 64 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-17 05:00:16,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 05:00:31,090 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-17 05:00:31,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090380596] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 05:00:31,091 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 05:00:31,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 40, 38] total 116 [2023-02-17 05:00:31,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518618736] [2023-02-17 05:00:31,091 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 05:00:31,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2023-02-17 05:00:31,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 05:00:31,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2023-02-17 05:00:31,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=689, Invalid=12651, Unknown=0, NotChecked=0, Total=13340 [2023-02-17 05:00:31,095 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) [2023-02-17 05:01:09,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 05:01:09,968 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2023-02-17 05:01:09,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-02-17 05:01:09,970 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 [2023-02-17 05:01:09,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 05:01:09,970 INFO L225 Difference]: With dead ends: 97 [2023-02-17 05:01:09,970 INFO L226 Difference]: Without dead ends: 93 [2023-02-17 05:01:09,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 35 SyntacticMatches, 5 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6920 ImplicationChecksByTransitivity, 55.4s TimeCoverageRelationStatistics Valid=1601, Invalid=26455, Unknown=0, NotChecked=0, Total=28056 [2023-02-17 05:01:09,976 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 45 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 3722 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s 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, 5.5s IncrementalHoareTripleChecker+Time [2023-02-17 05:01:09,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 199 Invalid, 3849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 3722 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-02-17 05:01:09,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-02-17 05:01:10,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 81. [2023-02-17 05:01:10,006 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) [2023-02-17 05:01:10,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 88 transitions. [2023-02-17 05:01:10,006 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 88 transitions. Word has length 55 [2023-02-17 05:01:10,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 05:01:10,007 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 88 transitions. [2023-02-17 05:01:10,007 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) [2023-02-17 05:01:10,007 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 88 transitions. [2023-02-17 05:01:10,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-02-17 05:01:10,007 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 05:01:10,008 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] [2023-02-17 05:01:10,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-17 05:01:10,212 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 [2023-02-17 05:01:10,213 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 05:01:10,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 05:01:10,213 INFO L85 PathProgramCache]: Analyzing trace with hash -691517258, now seen corresponding path program 10 times [2023-02-17 05:01:10,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 05:01:10,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208139171] [2023-02-17 05:01:10,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 05:01:10,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 05:01:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 05:01:10,316 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-02-17 05:01:10,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 05:01:10,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208139171] [2023-02-17 05:01:10,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208139171] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 05:01:10,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1919321670] [2023-02-17 05:01:10,317 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-17 05:01:10,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 05:01:10,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 05:01:10,324 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) [2023-02-17 05:01:10,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-17 05:01:10,375 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-17 05:01:10,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 05:01:10,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-17 05:01:10,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 05:01:10,460 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-02-17 05:01:10,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 05:01:10,535 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-02-17 05:01:10,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1919321670] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 05:01:10,535 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 05:01:10,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2023-02-17 05:01:10,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644098585] [2023-02-17 05:01:10,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 05:01:10,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-17 05:01:10,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 05:01:10,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-17 05:01:10,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2023-02-17 05:01:10,536 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) [2023-02-17 05:01:10,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 05:01:10,866 INFO L93 Difference]: Finished difference Result 206 states and 223 transitions. [2023-02-17 05:01:10,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-02-17 05:01:10,867 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 [2023-02-17 05:01:10,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 05:01:10,867 INFO L225 Difference]: With dead ends: 206 [2023-02-17 05:01:10,867 INFO L226 Difference]: Without dead ends: 100 [2023-02-17 05:01:10,868 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 [2023-02-17 05:01:10,869 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 [2023-02-17 05:01:10,869 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] [2023-02-17 05:01:10,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-02-17 05:01:10,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 84. [2023-02-17 05:01:10,896 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) [2023-02-17 05:01:10,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 90 transitions. [2023-02-17 05:01:10,896 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 90 transitions. Word has length 57 [2023-02-17 05:01:10,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 05:01:10,896 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 90 transitions. [2023-02-17 05:01:10,896 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) [2023-02-17 05:01:10,897 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 90 transitions. [2023-02-17 05:01:10,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-02-17 05:01:10,897 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 05:01:10,897 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] [2023-02-17 05:01:10,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-17 05:01:11,101 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 [2023-02-17 05:01:11,101 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 05:01:11,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 05:01:11,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1701588072, now seen corresponding path program 11 times [2023-02-17 05:01:11,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 05:01:11,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075043698] [2023-02-17 05:01:11,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 05:01:11,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 05:01:11,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 05:01:11,183 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 9 proven. 32 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-02-17 05:01:11,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 05:01:11,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075043698] [2023-02-17 05:01:11,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075043698] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 05:01:11,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712211965] [2023-02-17 05:01:11,183 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-17 05:01:11,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 05:01:11,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 05:01:11,189 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) [2023-02-17 05:01:11,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-17 05:01:11,281 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-02-17 05:01:11,281 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 05:01:11,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-17 05:01:11,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 05:01:11,368 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-02-17 05:01:11,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 05:01:11,442 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-02-17 05:01:11,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712211965] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 05:01:11,443 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 05:01:11,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2023-02-17 05:01:11,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632173656] [2023-02-17 05:01:11,443 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 05:01:11,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-17 05:01:11,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 05:01:11,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-17 05:01:11,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=439, Unknown=0, NotChecked=0, Total=552 [2023-02-17 05:01:11,444 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) [2023-02-17 05:01:11,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 05:01:11,637 INFO L93 Difference]: Finished difference Result 94 states and 100 transitions. [2023-02-17 05:01:11,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-17 05:01:11,637 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 [2023-02-17 05:01:11,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 05:01:11,638 INFO L225 Difference]: With dead ends: 94 [2023-02-17 05:01:11,638 INFO L226 Difference]: Without dead ends: 70 [2023-02-17 05:01:11,639 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 [2023-02-17 05:01:11,639 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 [2023-02-17 05:01:11,639 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] [2023-02-17 05:01:11,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-02-17 05:01:11,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2023-02-17 05:01:11,658 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) [2023-02-17 05:01:11,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2023-02-17 05:01:11,658 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 59 [2023-02-17 05:01:11,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 05:01:11,658 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2023-02-17 05:01:11,658 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) [2023-02-17 05:01:11,659 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2023-02-17 05:01:11,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-02-17 05:01:11,659 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 05:01:11,659 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] [2023-02-17 05:01:11,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-17 05:01:11,859 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 [2023-02-17 05:01:11,860 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 05:01:11,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 05:01:11,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1079638594, now seen corresponding path program 12 times [2023-02-17 05:01:11,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 05:01:11,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751106169] [2023-02-17 05:01:11,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 05:01:11,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 05:01:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 05:01:14,950 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 1 proven. 124 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:01:14,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 05:01:14,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751106169] [2023-02-17 05:01:14,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751106169] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 05:01:14,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139427312] [2023-02-17 05:01:14,951 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-17 05:01:14,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 05:01:14,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 05:01:14,952 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) [2023-02-17 05:01:14,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-17 05:01:15,060 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2023-02-17 05:01:15,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 05:01:15,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 105 conjunts are in the unsatisfiable core [2023-02-17 05:01:15,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 05:01:19,977 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-17 05:01:19,977 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 [2023-02-17 05:01:19,984 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:19,988 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:19,991 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:19,996 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,000 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,002 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-17 05:01:20,008 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,010 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,014 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,017 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,018 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,023 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,026 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,028 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-17 05:01:20,034 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,037 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-17 05:01:20,042 WARN L718 sPolynomialRelations]: Constructing 512(two to the power of 9 dual juncts. [2023-02-17 05:01:20,054 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,056 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-17 05:01:20,063 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,065 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,069 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,073 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,074 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,078 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,081 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-17 05:01:20,097 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,102 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,105 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,108 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,112 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,118 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,121 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,124 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,127 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-17 05:01:20,133 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,136 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,140 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,146 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,149 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,152 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,154 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,162 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,195 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,209 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,215 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,217 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,221 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,226 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,231 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,233 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,237 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,246 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,250 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,251 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,256 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-17 05:01:20,262 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,265 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,267 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,283 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,289 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,296 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,300 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,304 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,342 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,372 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,400 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,414 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,423 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,428 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,432 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,444 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,452 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,457 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,458 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,463 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,479 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,490 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,491 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,496 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,503 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,505 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,510 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,512 WARN L718 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2023-02-17 05:01:20,520 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,525 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,527 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,539 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,564 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,569 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,574 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,578 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,586 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,751 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,761 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,893 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,921 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,943 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,951 WARN L718 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-02-17 05:01:20,958 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-02-17 05:01:20,961 WARN L718 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts.