./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/gr2006.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e1ff0e6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-lit/gr2006.i -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 3ef045eb54c58e8ecfe4972142a43378e1f3b08091dc3d5b7e399cf5703f1724 --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-14 23:14:24,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 23:14:24,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 23:14:24,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 23:14:24,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 23:14:24,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 23:14:24,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 23:14:24,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 23:14:24,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 23:14:24,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 23:14:24,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 23:14:24,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 23:14:24,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 23:14:24,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 23:14:24,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 23:14:24,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 23:14:24,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 23:14:24,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 23:14:24,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 23:14:24,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 23:14:24,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 23:14:24,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 23:14:24,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 23:14:24,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 23:14:24,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 23:14:24,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 23:14:24,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 23:14:24,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 23:14:24,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 23:14:24,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 23:14:24,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 23:14:24,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 23:14:24,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 23:14:24,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 23:14:24,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 23:14:24,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 23:14:24,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 23:14:24,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 23:14:24,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 23:14:24,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 23:14:24,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 23:14:24,186 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-14 23:14:24,220 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 23:14:24,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 23:14:24,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 23:14:24,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 23:14:24,222 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 23:14:24,223 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 23:14:24,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 23:14:24,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 23:14:24,223 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 23:14:24,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 23:14:24,224 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-14 23:14:24,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 23:14:24,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-14 23:14:24,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 23:14:24,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 23:14:24,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 23:14:24,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 23:14:24,226 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-14 23:14:24,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 23:14:24,226 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 23:14:24,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 23:14:24,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 23:14:24,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 23:14:24,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 23:14:24,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 23:14:24,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 23:14:24,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 23:14:24,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 23:14:24,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 23:14:24,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-14 23:14:24,228 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 23:14:24,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 23:14:24,228 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 23:14:24,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 23:14:24,229 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 23:14:24,229 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ef045eb54c58e8ecfe4972142a43378e1f3b08091dc3d5b7e399cf5703f1724 [2023-02-14 23:14:24,454 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 23:14:24,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 23:14:24,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 23:14:24,478 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 23:14:24,478 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 23:14:24,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/gr2006.i [2023-02-14 23:14:25,601 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 23:14:25,761 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 23:14:25,762 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gr2006.i [2023-02-14 23:14:25,767 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9af65609d/c675484e013d44c0aa549e777caa27d5/FLAG41079e110 [2023-02-14 23:14:25,782 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9af65609d/c675484e013d44c0aa549e777caa27d5 [2023-02-14 23:14:25,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 23:14:25,787 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 23:14:25,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 23:14:25,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 23:14:25,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 23:14:25,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 11:14:25" (1/1) ... [2023-02-14 23:14:25,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10c25833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:14:25, skipping insertion in model container [2023-02-14 23:14:25,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 11:14:25" (1/1) ... [2023-02-14 23:14:25,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 23:14:25,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 23:14:25,938 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gr2006.i[895,908] [2023-02-14 23:14:25,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 23:14:25,953 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 23:14:25,964 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gr2006.i[895,908] [2023-02-14 23:14:25,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 23:14:25,978 INFO L208 MainTranslator]: Completed translation [2023-02-14 23:14:25,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:14:25 WrapperNode [2023-02-14 23:14:25,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 23:14:25,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 23:14:25,979 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 23:14:25,979 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 23:14:25,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:14:25" (1/1) ... [2023-02-14 23:14:25,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:14:25" (1/1) ... [2023-02-14 23:14:26,005 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2023-02-14 23:14:26,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 23:14:26,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 23:14:26,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 23:14:26,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 23:14:26,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:14:25" (1/1) ... [2023-02-14 23:14:26,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:14:25" (1/1) ... [2023-02-14 23:14:26,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:14:25" (1/1) ... [2023-02-14 23:14:26,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:14:25" (1/1) ... [2023-02-14 23:14:26,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:14:25" (1/1) ... [2023-02-14 23:14:26,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:14:25" (1/1) ... [2023-02-14 23:14:26,027 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:14:25" (1/1) ... [2023-02-14 23:14:26,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:14:25" (1/1) ... [2023-02-14 23:14:26,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 23:14:26,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 23:14:26,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 23:14:26,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 23:14:26,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:14:25" (1/1) ... [2023-02-14 23:14:26,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 23:14:26,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 23:14:26,063 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) [2023-02-14 23:14:26,065 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 [2023-02-14 23:14:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-14 23:14:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-14 23:14:26,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 23:14:26,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 23:14:26,136 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 23:14:26,137 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 23:14:26,219 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 23:14:26,224 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 23:14:26,224 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-14 23:14:26,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 11:14:26 BoogieIcfgContainer [2023-02-14 23:14:26,226 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 23:14:26,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 23:14:26,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 23:14:26,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 23:14:26,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 11:14:25" (1/3) ... [2023-02-14 23:14:26,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f3028dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 11:14:26, skipping insertion in model container [2023-02-14 23:14:26,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 11:14:25" (2/3) ... [2023-02-14 23:14:26,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f3028dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 11:14:26, skipping insertion in model container [2023-02-14 23:14:26,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 11:14:26" (3/3) ... [2023-02-14 23:14:26,233 INFO L112 eAbstractionObserver]: Analyzing ICFG gr2006.i [2023-02-14 23:14:26,248 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 23:14:26,249 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-14 23:14:26,287 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 23:14:26,293 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;@1bdd9860, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 23:14:26,294 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-14 23:14:26,297 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 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) [2023-02-14 23:14:26,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-14 23:14:26,301 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:14:26,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-14 23:14:26,302 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:14:26,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:14:26,306 INFO L85 PathProgramCache]: Analyzing trace with hash 890091623, now seen corresponding path program 1 times [2023-02-14 23:14:26,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:14:26,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860403003] [2023-02-14 23:14:26,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:14:26,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:14:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:14:26,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 23:14:26,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:14:26,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860403003] [2023-02-14 23:14:26,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860403003] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 23:14:26,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 23:14:26,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 23:14:26,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650800288] [2023-02-14 23:14:26,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 23:14:26,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-14 23:14:26,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:14:26,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-14 23:14:26,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-14 23:14:26,479 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:26,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:14:26,500 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2023-02-14 23:14:26,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-14 23:14:26,504 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-14 23:14:26,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:14:26,510 INFO L225 Difference]: With dead ends: 21 [2023-02-14 23:14:26,510 INFO L226 Difference]: Without dead ends: 9 [2023-02-14 23:14:26,513 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 [2023-02-14 23:14:26,517 INFO L413 NwaCegarLoop]: 14 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, 14 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 [2023-02-14 23:14:26,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 23:14:26,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-02-14 23:14:26,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-02-14 23:14:26,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:26,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2023-02-14 23:14:26,546 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2023-02-14 23:14:26,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:14:26,547 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-02-14 23:14:26,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:26,547 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-02-14 23:14:26,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-14 23:14:26,548 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:14:26,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 23:14:26,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-14 23:14:26,549 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:14:26,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:14:26,550 INFO L85 PathProgramCache]: Analyzing trace with hash 297871632, now seen corresponding path program 1 times [2023-02-14 23:14:26,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:14:26,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118406691] [2023-02-14 23:14:26,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:14:26,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:14:26,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:14:26,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 23:14:26,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:14:26,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118406691] [2023-02-14 23:14:26,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118406691] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 23:14:26,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 23:14:26,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-14 23:14:26,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711659128] [2023-02-14 23:14:26,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 23:14:26,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-14 23:14:26,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:14:26,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 23:14:26,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 23:14:26,689 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:26,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:14:26,733 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2023-02-14 23:14:26,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 23:14:26,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-14 23:14:26,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:14:26,734 INFO L225 Difference]: With dead ends: 23 [2023-02-14 23:14:26,734 INFO L226 Difference]: Without dead ends: 16 [2023-02-14 23:14:26,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 23:14:26,736 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 23:14:26,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 12 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 23:14:26,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-02-14 23:14:26,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2023-02-14 23:14:26,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:26,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2023-02-14 23:14:26,757 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2023-02-14 23:14:26,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:14:26,757 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-02-14 23:14:26,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:26,758 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-02-14 23:14:26,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-14 23:14:26,758 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:14:26,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 23:14:26,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-14 23:14:26,759 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:14:26,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:14:26,760 INFO L85 PathProgramCache]: Analyzing trace with hash 296024590, now seen corresponding path program 1 times [2023-02-14 23:14:26,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:14:26,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302379643] [2023-02-14 23:14:26,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:14:26,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:14:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:14:26,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 23:14:26,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:14:26,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302379643] [2023-02-14 23:14:26,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302379643] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 23:14:26,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 23:14:26,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 23:14:26,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877334344] [2023-02-14 23:14:26,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 23:14:26,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 23:14:26,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:14:26,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 23:14:26,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 23:14:26,806 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:26,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:14:26,825 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2023-02-14 23:14:26,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 23:14:26,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-14 23:14:26,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:14:26,827 INFO L225 Difference]: With dead ends: 18 [2023-02-14 23:14:26,827 INFO L226 Difference]: Without dead ends: 14 [2023-02-14 23:14:26,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 23:14:26,835 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 23:14:26,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 18 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 23:14:26,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-02-14 23:14:26,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-02-14 23:14:26,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:26,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2023-02-14 23:14:26,840 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 8 [2023-02-14 23:14:26,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:14:26,840 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-02-14 23:14:26,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:26,840 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-02-14 23:14:26,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-14 23:14:26,841 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:14:26,841 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 23:14:26,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-14 23:14:26,841 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:14:26,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:14:26,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1661002755, now seen corresponding path program 1 times [2023-02-14 23:14:26,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:14:26,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009583502] [2023-02-14 23:14:26,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:14:26,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:14:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:14:26,920 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 23:14:26,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:14:26,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009583502] [2023-02-14 23:14:26,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009583502] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 23:14:26,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605209621] [2023-02-14 23:14:26,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:14:26,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 23:14:26,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 23:14:26,937 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) [2023-02-14 23:14:26,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-14 23:14:26,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:14:27,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 23:14:27,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 23:14:27,066 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 23:14:27,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 23:14:27,095 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 23:14:27,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605209621] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 23:14:27,096 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 23:14:27,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-02-14 23:14:27,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924791402] [2023-02-14 23:14:27,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 23:14:27,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-14 23:14:27,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:14:27,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-14 23:14:27,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-02-14 23:14:27,098 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:27,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:14:27,148 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2023-02-14 23:14:27,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 23:14:27,149 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-14 23:14:27,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:14:27,151 INFO L225 Difference]: With dead ends: 35 [2023-02-14 23:14:27,151 INFO L226 Difference]: Without dead ends: 28 [2023-02-14 23:14:27,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-02-14 23:14:27,159 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 23:14:27,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 41 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 23:14:27,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-02-14 23:14:27,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2023-02-14 23:14:27,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 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) [2023-02-14 23:14:27,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2023-02-14 23:14:27,175 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 11 [2023-02-14 23:14:27,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:14:27,176 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2023-02-14 23:14:27,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:27,176 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2023-02-14 23:14:27,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-14 23:14:27,177 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:14:27,178 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 23:14:27,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-14 23:14:27,383 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 [2023-02-14 23:14:27,383 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:14:27,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:14:27,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1073415472, now seen corresponding path program 2 times [2023-02-14 23:14:27,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:14:27,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356984373] [2023-02-14 23:14:27,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:14:27,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:14:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:14:27,492 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 23:14:27,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:14:27,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356984373] [2023-02-14 23:14:27,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356984373] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 23:14:27,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301855665] [2023-02-14 23:14:27,494 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-14 23:14:27,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 23:14:27,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 23:14:27,495 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) [2023-02-14 23:14:27,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-14 23:14:27,550 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-14 23:14:27,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 23:14:27,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-14 23:14:27,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 23:14:27,641 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-14 23:14:27,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 23:14:27,746 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-14 23:14:27,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301855665] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 23:14:27,747 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 23:14:27,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-02-14 23:14:27,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136072141] [2023-02-14 23:14:27,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 23:14:27,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-14 23:14:27,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:14:27,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-14 23:14:27,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-02-14 23:14:27,757 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 15 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:27,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:14:27,881 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2023-02-14 23:14:27,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-14 23:14:27,882 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-02-14 23:14:27,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:14:27,882 INFO L225 Difference]: With dead ends: 47 [2023-02-14 23:14:27,882 INFO L226 Difference]: Without dead ends: 40 [2023-02-14 23:14:27,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=376, Unknown=0, NotChecked=0, Total=552 [2023-02-14 23:14:27,884 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 5 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 23:14:27,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 47 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 23:14:27,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-14 23:14:27,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2023-02-14 23:14:27,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 35 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) [2023-02-14 23:14:27,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2023-02-14 23:14:27,894 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 20 [2023-02-14 23:14:27,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:14:27,894 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2023-02-14 23:14:27,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:27,894 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2023-02-14 23:14:27,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-14 23:14:27,905 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:14:27,906 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 5, 5, 1, 1, 1, 1, 1, 1] [2023-02-14 23:14:27,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-14 23:14:28,106 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 [2023-02-14 23:14:28,107 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:14:28,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:14:28,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1219917565, now seen corresponding path program 3 times [2023-02-14 23:14:28,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:14:28,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436877151] [2023-02-14 23:14:28,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:14:28,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:14:28,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:14:28,258 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 73 proven. 40 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-14 23:14:28,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:14:28,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436877151] [2023-02-14 23:14:28,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436877151] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 23:14:28,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616262476] [2023-02-14 23:14:28,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-14 23:14:28,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 23:14:28,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 23:14:28,265 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) [2023-02-14 23:14:28,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-14 23:14:28,314 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2023-02-14 23:14:28,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 23:14:28,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-14 23:14:28,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 23:14:28,401 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 9 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 23:14:28,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 23:14:28,605 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 9 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 23:14:28,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616262476] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 23:14:28,606 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 23:14:28,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 12] total 23 [2023-02-14 23:14:28,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046888636] [2023-02-14 23:14:28,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 23:14:28,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-02-14 23:14:28,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:14:28,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-02-14 23:14:28,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2023-02-14 23:14:28,612 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 23 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:28,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:14:28,701 INFO L93 Difference]: Finished difference Result 104 states and 129 transitions. [2023-02-14 23:14:28,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-14 23:14:28,702 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 23 states have internal predecessors, (73), 0 states have call successors, (0), 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 [2023-02-14 23:14:28,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:14:28,705 INFO L225 Difference]: With dead ends: 104 [2023-02-14 23:14:28,706 INFO L226 Difference]: Without dead ends: 84 [2023-02-14 23:14:28,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2023-02-14 23:14:28,707 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 17 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 23:14:28,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 49 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 23:14:28,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-02-14 23:14:28,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 81. [2023-02-14 23:14:28,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.075) internal successors, (86), 80 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:28,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 86 transitions. [2023-02-14 23:14:28,730 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 86 transitions. Word has length 35 [2023-02-14 23:14:28,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:14:28,730 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 86 transitions. [2023-02-14 23:14:28,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 23 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:28,731 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 86 transitions. [2023-02-14 23:14:28,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-02-14 23:14:28,734 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:14:28,734 INFO L195 NwaCegarLoop]: trace histogram [25, 24, 20, 5, 1, 1, 1, 1, 1, 1] [2023-02-14 23:14:28,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-14 23:14:28,939 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 [2023-02-14 23:14:28,940 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:14:28,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:14:28,940 INFO L85 PathProgramCache]: Analyzing trace with hash 399884816, now seen corresponding path program 4 times [2023-02-14 23:14:28,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:14:28,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494692807] [2023-02-14 23:14:28,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:14:28,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:14:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:14:29,523 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 268 proven. 610 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-14 23:14:29,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:14:29,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494692807] [2023-02-14 23:14:29,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494692807] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 23:14:29,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377267297] [2023-02-14 23:14:29,524 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-14 23:14:29,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 23:14:29,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 23:14:29,526 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) [2023-02-14 23:14:29,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-14 23:14:29,594 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-14 23:14:29,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 23:14:29,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-14 23:14:29,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 23:14:29,717 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 268 proven. 610 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-14 23:14:29,717 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 23:14:30,360 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 268 proven. 610 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-14 23:14:30,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377267297] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 23:14:30,360 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 23:14:30,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2023-02-14 23:14:30,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480169902] [2023-02-14 23:14:30,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 23:14:30,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-02-14 23:14:30,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:14:30,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-02-14 23:14:30,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2023-02-14 23:14:30,363 INFO L87 Difference]: Start difference. First operand 81 states and 86 transitions. Second operand has 45 states, 45 states have (on average 3.066666666666667) internal successors, (138), 45 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:30,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:14:30,537 INFO L93 Difference]: Finished difference Result 170 states and 202 transitions. [2023-02-14 23:14:30,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-02-14 23:14:30,538 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 3.066666666666667) internal successors, (138), 45 states have internal predecessors, (138), 0 states have call successors, (0), 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 80 [2023-02-14 23:14:30,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:14:30,541 INFO L225 Difference]: With dead ends: 170 [2023-02-14 23:14:30,541 INFO L226 Difference]: Without dead ends: 150 [2023-02-14 23:14:30,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2023-02-14 23:14:30,546 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 23:14:30,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 78 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 23:14:30,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-02-14 23:14:30,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 147. [2023-02-14 23:14:30,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 1.0410958904109588) internal successors, (152), 146 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:30,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 152 transitions. [2023-02-14 23:14:30,573 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 152 transitions. Word has length 80 [2023-02-14 23:14:30,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:14:30,575 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 152 transitions. [2023-02-14 23:14:30,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 3.066666666666667) internal successors, (138), 45 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:30,576 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 152 transitions. [2023-02-14 23:14:30,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-02-14 23:14:30,582 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:14:30,582 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 42, 5, 1, 1, 1, 1, 1, 1] [2023-02-14 23:14:30,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-14 23:14:30,788 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 [2023-02-14 23:14:30,788 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:14:30,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:14:30,789 INFO L85 PathProgramCache]: Analyzing trace with hash -344528976, now seen corresponding path program 5 times [2023-02-14 23:14:30,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:14:30,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523831363] [2023-02-14 23:14:30,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:14:30,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:14:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:14:32,310 INFO L134 CoverageAnalysis]: Checked inductivity of 3243 backedges. 554 proven. 2667 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-14 23:14:32,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:14:32,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523831363] [2023-02-14 23:14:32,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523831363] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 23:14:32,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135690797] [2023-02-14 23:14:32,311 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-14 23:14:32,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 23:14:32,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 23:14:32,313 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) [2023-02-14 23:14:32,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-14 23:14:32,416 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-14 23:14:32,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 23:14:32,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 44 conjunts are in the unsatisfiable core [2023-02-14 23:14:32,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 23:14:32,613 INFO L134 CoverageAnalysis]: Checked inductivity of 3243 backedges. 554 proven. 2667 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-14 23:14:32,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 23:14:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 3243 backedges. 554 proven. 2667 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-14 23:14:33,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135690797] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 23:14:33,706 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 23:14:33,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45, 45] total 53 [2023-02-14 23:14:33,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204881186] [2023-02-14 23:14:33,706 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 23:14:33,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2023-02-14 23:14:33,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:14:33,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2023-02-14 23:14:33,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2023-02-14 23:14:33,709 INFO L87 Difference]: Start difference. First operand 147 states and 152 transitions. Second operand has 53 states, 53 states have (on average 3.0943396226415096) internal successors, (164), 53 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:33,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:14:33,850 INFO L93 Difference]: Finished difference Result 194 states and 212 transitions. [2023-02-14 23:14:33,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-02-14 23:14:33,850 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 3.0943396226415096) internal successors, (164), 53 states have internal predecessors, (164), 0 states have call successors, (0), 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 146 [2023-02-14 23:14:33,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:14:33,851 INFO L225 Difference]: With dead ends: 194 [2023-02-14 23:14:33,851 INFO L226 Difference]: Without dead ends: 174 [2023-02-14 23:14:33,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 248 SyntacticMatches, 36 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1050 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2023-02-14 23:14:33,853 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 23:14:33,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 79 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 23:14:33,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-02-14 23:14:33,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 171. [2023-02-14 23:14:33,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.035294117647059) internal successors, (176), 170 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:33,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 176 transitions. [2023-02-14 23:14:33,862 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 176 transitions. Word has length 146 [2023-02-14 23:14:33,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:14:33,862 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 176 transitions. [2023-02-14 23:14:33,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 3.0943396226415096) internal successors, (164), 53 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:33,863 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 176 transitions. [2023-02-14 23:14:33,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-02-14 23:14:33,864 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:14:33,864 INFO L195 NwaCegarLoop]: trace histogram [55, 54, 50, 5, 1, 1, 1, 1, 1, 1] [2023-02-14 23:14:33,894 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-14 23:14:34,068 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 [2023-02-14 23:14:34,068 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:14:34,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:14:34,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1661700912, now seen corresponding path program 6 times [2023-02-14 23:14:34,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:14:34,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666507684] [2023-02-14 23:14:34,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:14:34,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:14:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:14:34,288 INFO L134 CoverageAnalysis]: Checked inductivity of 4455 backedges. 1416 proven. 57 refuted. 0 times theorem prover too weak. 2982 trivial. 0 not checked. [2023-02-14 23:14:34,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:14:34,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666507684] [2023-02-14 23:14:34,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666507684] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 23:14:34,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660160175] [2023-02-14 23:14:34,289 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-14 23:14:34,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 23:14:34,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 23:14:34,291 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) [2023-02-14 23:14:34,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-14 23:14:34,372 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 29 check-sat command(s) [2023-02-14 23:14:34,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 23:14:34,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-14 23:14:34,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 23:14:34,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4455 backedges. 1416 proven. 57 refuted. 0 times theorem prover too weak. 2982 trivial. 0 not checked. [2023-02-14 23:14:34,423 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 23:14:34,498 INFO L134 CoverageAnalysis]: Checked inductivity of 4455 backedges. 1416 proven. 57 refuted. 0 times theorem prover too weak. 2982 trivial. 0 not checked. [2023-02-14 23:14:34,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660160175] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 23:14:34,499 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 23:14:34,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 8 [2023-02-14 23:14:34,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792212797] [2023-02-14 23:14:34,499 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 23:14:34,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-14 23:14:34,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:14:34,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-14 23:14:34,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-02-14 23:14:34,501 INFO L87 Difference]: Start difference. First operand 171 states and 176 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:34,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:14:34,536 INFO L93 Difference]: Finished difference Result 191 states and 201 transitions. [2023-02-14 23:14:34,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-14 23:14:34,536 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 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 170 [2023-02-14 23:14:34,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:14:34,538 INFO L225 Difference]: With dead ends: 191 [2023-02-14 23:14:34,539 INFO L226 Difference]: Without dead ends: 187 [2023-02-14 23:14:34,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 333 SyntacticMatches, 12 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-02-14 23:14:34,540 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 23:14:34,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 23:14:34,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-02-14 23:14:34,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 174. [2023-02-14 23:14:34,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 1.0404624277456647) internal successors, (180), 173 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:34,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 180 transitions. [2023-02-14 23:14:34,548 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 180 transitions. Word has length 170 [2023-02-14 23:14:34,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:14:34,549 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 180 transitions. [2023-02-14 23:14:34,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:34,549 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 180 transitions. [2023-02-14 23:14:34,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-02-14 23:14:34,550 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:14:34,550 INFO L195 NwaCegarLoop]: trace histogram [56, 55, 50, 6, 1, 1, 1, 1, 1, 1] [2023-02-14 23:14:34,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-14 23:14:34,756 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 [2023-02-14 23:14:34,756 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:14:34,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:14:34,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1272078235, now seen corresponding path program 7 times [2023-02-14 23:14:34,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:14:34,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531364463] [2023-02-14 23:14:34,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:14:34,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:14:34,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:14:34,970 INFO L134 CoverageAnalysis]: Checked inductivity of 4620 backedges. 1681 proven. 86 refuted. 0 times theorem prover too weak. 2853 trivial. 0 not checked. [2023-02-14 23:14:34,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:14:34,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531364463] [2023-02-14 23:14:34,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531364463] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 23:14:34,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176529140] [2023-02-14 23:14:34,971 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-14 23:14:34,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 23:14:34,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 23:14:34,972 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) [2023-02-14 23:14:34,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-14 23:14:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:14:35,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 58 conjunts are in the unsatisfiable core [2023-02-14 23:14:35,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 23:14:36,216 INFO L134 CoverageAnalysis]: Checked inductivity of 4620 backedges. 4518 proven. 86 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-14 23:14:36,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 23:14:37,338 INFO L134 CoverageAnalysis]: Checked inductivity of 4620 backedges. 4518 proven. 86 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-14 23:14:37,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176529140] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 23:14:37,338 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 23:14:37,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 53, 53] total 97 [2023-02-14 23:14:37,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299761002] [2023-02-14 23:14:37,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 23:14:37,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2023-02-14 23:14:37,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:14:37,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2023-02-14 23:14:37,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2023-02-14 23:14:37,348 INFO L87 Difference]: Start difference. First operand 174 states and 180 transitions. Second operand has 97 states, 97 states have (on average 3.1752577319587627) internal successors, (308), 97 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:37,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:14:37,922 INFO L93 Difference]: Finished difference Result 1033 states and 1353 transitions. [2023-02-14 23:14:37,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-02-14 23:14:37,922 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 3.1752577319587627) internal successors, (308), 97 states have internal predecessors, (308), 0 states have call successors, (0), 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 173 [2023-02-14 23:14:37,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:14:37,926 INFO L225 Difference]: With dead ends: 1033 [2023-02-14 23:14:37,926 INFO L226 Difference]: Without dead ends: 1029 [2023-02-14 23:14:37,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 251 SyntacticMatches, 13 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5014 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2023-02-14 23:14:37,930 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 20 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-14 23:14:37,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 261 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-14 23:14:37,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2023-02-14 23:14:37,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 309. [2023-02-14 23:14:37,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 308 states have (on average 1.1688311688311688) internal successors, (360), 308 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:37,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 360 transitions. [2023-02-14 23:14:37,955 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 360 transitions. Word has length 173 [2023-02-14 23:14:37,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:14:37,955 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 360 transitions. [2023-02-14 23:14:37,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 3.1752577319587627) internal successors, (308), 97 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:37,956 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 360 transitions. [2023-02-14 23:14:37,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2023-02-14 23:14:37,959 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:14:37,959 INFO L195 NwaCegarLoop]: trace histogram [101, 100, 51, 50, 1, 1, 1, 1, 1, 1] [2023-02-14 23:14:37,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-14 23:14:38,165 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 [2023-02-14 23:14:38,166 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:14:38,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:14:38,166 INFO L85 PathProgramCache]: Analyzing trace with hash -338193904, now seen corresponding path program 8 times [2023-02-14 23:14:38,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:14:38,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317866796] [2023-02-14 23:14:38,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:14:38,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:14:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:14:44,068 INFO L134 CoverageAnalysis]: Checked inductivity of 15150 backedges. 0 proven. 15150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 23:14:44,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:14:44,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317866796] [2023-02-14 23:14:44,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317866796] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 23:14:44,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936745335] [2023-02-14 23:14:44,071 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-14 23:14:44,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 23:14:44,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 23:14:44,073 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) [2023-02-14 23:14:44,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-14 23:14:44,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-14 23:14:44,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 23:14:44,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 208 conjunts are in the unsatisfiable core [2023-02-14 23:14:44,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 23:14:47,590 INFO L134 CoverageAnalysis]: Checked inductivity of 15150 backedges. 0 proven. 15150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 23:14:47,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 23:14:48,383 INFO L134 CoverageAnalysis]: Checked inductivity of 15150 backedges. 0 proven. 15150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 23:14:48,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936745335] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 23:14:48,383 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 23:14:48,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [105, 104, 104] total 155 [2023-02-14 23:14:48,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035244901] [2023-02-14 23:14:48,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 23:14:48,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 155 states [2023-02-14 23:14:48,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:14:48,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2023-02-14 23:14:48,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2858, Invalid=21012, Unknown=0, NotChecked=0, Total=23870 [2023-02-14 23:14:48,391 INFO L87 Difference]: Start difference. First operand 309 states and 360 transitions. Second operand has 155 states, 155 states have (on average 2.967741935483871) internal successors, (460), 155 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:54,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:14:54,372 INFO L93 Difference]: Finished difference Result 4542 states and 5921 transitions. [2023-02-14 23:14:54,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2023-02-14 23:14:54,375 INFO L78 Accepts]: Start accepts. Automaton has has 155 states, 155 states have (on average 2.967741935483871) internal successors, (460), 155 states have internal predecessors, (460), 0 states have call successors, (0), 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 308 [2023-02-14 23:14:54,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:14:54,390 INFO L225 Difference]: With dead ends: 4542 [2023-02-14 23:14:54,390 INFO L226 Difference]: Without dead ends: 4382 [2023-02-14 23:14:54,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 720 GetRequests, 561 SyntacticMatches, 5 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8151 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=2863, Invalid=21317, Unknown=0, NotChecked=0, Total=24180 [2023-02-14 23:14:54,399 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 197 mSDsluCounter, 15992 mSDsCounter, 0 mSdLazyCounter, 17568 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 16245 SdHoareTripleChecker+Invalid, 17621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 17568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-02-14 23:14:54,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 16245 Invalid, 17621 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 17568 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-02-14 23:14:54,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4382 states. [2023-02-14 23:14:54,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4382 to 4186. [2023-02-14 23:14:54,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4186 states, 4185 states have (on average 1.0241338112305853) internal successors, (4286), 4185 states have internal predecessors, (4286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:54,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4186 states to 4186 states and 4286 transitions. [2023-02-14 23:14:54,658 INFO L78 Accepts]: Start accepts. Automaton has 4186 states and 4286 transitions. Word has length 308 [2023-02-14 23:14:54,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:14:54,659 INFO L495 AbstractCegarLoop]: Abstraction has 4186 states and 4286 transitions. [2023-02-14 23:14:54,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 155 states, 155 states have (on average 2.967741935483871) internal successors, (460), 155 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:14:54,660 INFO L276 IsEmpty]: Start isEmpty. Operand 4186 states and 4286 transitions. [2023-02-14 23:14:54,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-02-14 23:14:54,663 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 23:14:54,663 INFO L195 NwaCegarLoop]: trace histogram [102, 101, 52, 50, 1, 1, 1, 1, 1, 1] [2023-02-14 23:14:54,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-14 23:14:54,870 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 [2023-02-14 23:14:54,870 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 23:14:54,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 23:14:54,871 INFO L85 PathProgramCache]: Analyzing trace with hash -2103022405, now seen corresponding path program 9 times [2023-02-14 23:14:54,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 23:14:54,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350449014] [2023-02-14 23:14:54,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 23:14:54,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 23:14:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 23:14:58,168 INFO L134 CoverageAnalysis]: Checked inductivity of 15453 backedges. 7903 proven. 7403 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-02-14 23:14:58,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 23:14:58,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350449014] [2023-02-14 23:14:58,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350449014] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 23:14:58,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876310055] [2023-02-14 23:14:58,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-14 23:14:58,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 23:14:58,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 23:14:58,171 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) [2023-02-14 23:14:58,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-14 23:14:58,393 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 102 check-sat command(s) [2023-02-14 23:14:58,394 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 23:14:58,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 103 conjunts are in the unsatisfiable core [2023-02-14 23:14:58,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 23:14:58,786 INFO L134 CoverageAnalysis]: Checked inductivity of 15453 backedges. 7903 proven. 7401 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-02-14 23:14:58,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 23:15:00,841 INFO L134 CoverageAnalysis]: Checked inductivity of 15453 backedges. 7903 proven. 7401 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-02-14 23:15:00,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876310055] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 23:15:00,842 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 23:15:00,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 54, 54] total 55 [2023-02-14 23:15:00,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878931288] [2023-02-14 23:15:00,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 23:15:00,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-02-14 23:15:00,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 23:15:00,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-02-14 23:15:00,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1484, Invalid=1486, Unknown=0, NotChecked=0, Total=2970 [2023-02-14 23:15:00,845 INFO L87 Difference]: Start difference. First operand 4186 states and 4286 transitions. Second operand has 55 states, 55 states have (on average 3.909090909090909) internal successors, (215), 55 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:15:01,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 23:15:01,078 INFO L93 Difference]: Finished difference Result 4337 states and 4437 transitions. [2023-02-14 23:15:01,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-02-14 23:15:01,079 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 3.909090909090909) internal successors, (215), 55 states have internal predecessors, (215), 0 states have call successors, (0), 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 311 [2023-02-14 23:15:01,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 23:15:01,079 INFO L225 Difference]: With dead ends: 4337 [2023-02-14 23:15:01,080 INFO L226 Difference]: Without dead ends: 0 [2023-02-14 23:15:01,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 724 GetRequests, 569 SyntacticMatches, 102 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3338 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1484, Invalid=1486, Unknown=0, NotChecked=0, Total=2970 [2023-02-14 23:15:01,084 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-14 23:15:01,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-14 23:15:01,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-14 23:15:01,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-14 23:15:01,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:15:01,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-14 23:15:01,085 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 311 [2023-02-14 23:15:01,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 23:15:01,086 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 23:15:01,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 3.909090909090909) internal successors, (215), 55 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 23:15:01,086 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-14 23:15:01,086 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-14 23:15:01,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-14 23:15:01,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-14 23:15:01,295 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 [2023-02-14 23:15:01,297 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-14 23:15:04,885 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-14 23:15:04,885 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 33) no Hoare annotation was computed. [2023-02-14 23:15:04,886 INFO L899 garLoopResultBuilder]: For program point L29-2(lines 28 36) no Hoare annotation was computed. [2023-02-14 23:15:04,886 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-02-14 23:15:04,886 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-14 23:15:04,886 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 24 39) the Hoare annotation is: true [2023-02-14 23:15:04,886 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-14 23:15:04,886 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-14 23:15:04,890 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 28 36) the Hoare annotation is: (let ((.cse4 (<= 49 |ULTIMATE.start_main_~y~0#1|)) (.cse5 (<= |ULTIMATE.start_main_~y~0#1| 49)) (.cse20 (<= 31 |ULTIMATE.start_main_~y~0#1|)) (.cse21 (<= |ULTIMATE.start_main_~y~0#1| 31)) (.cse10 (<= 17 |ULTIMATE.start_main_~y~0#1|)) (.cse11 (<= |ULTIMATE.start_main_~y~0#1| 17)) (.cse12 (<= 42 |ULTIMATE.start_main_~y~0#1|)) (.cse13 (<= |ULTIMATE.start_main_~y~0#1| 42)) (.cse30 (<= 22 |ULTIMATE.start_main_~y~0#1|)) (.cse31 (<= |ULTIMATE.start_main_~y~0#1| 22)) (.cse32 (<= 34 |ULTIMATE.start_main_~y~0#1|)) (.cse33 (<= |ULTIMATE.start_main_~y~0#1| 34)) (.cse34 (<= |ULTIMATE.start_main_~y~0#1| 14)) (.cse35 (<= 14 |ULTIMATE.start_main_~y~0#1|)) (.cse60 (<= 16 |ULTIMATE.start_main_~y~0#1|)) (.cse61 (<= |ULTIMATE.start_main_~y~0#1| 16)) (.cse48 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse49 (<= |ULTIMATE.start_main_~y~0#1| 1)) (.cse25 (<= |ULTIMATE.start_main_~x~0#1| 99)) (.cse26 (<= |ULTIMATE.start_main_~y~0#1| 27)) (.cse27 (<= 27 |ULTIMATE.start_main_~y~0#1|)) (.cse14 (<= |ULTIMATE.start_main_~y~0#1| 9)) (.cse15 (<= 9 |ULTIMATE.start_main_~y~0#1|)) (.cse8 (<= 4 |ULTIMATE.start_main_~y~0#1|)) (.cse9 (<= |ULTIMATE.start_main_~y~0#1| 4)) (.cse62 (<= 10 |ULTIMATE.start_main_~y~0#1|)) (.cse63 (<= |ULTIMATE.start_main_~y~0#1| 10)) (.cse24 (= |ULTIMATE.start_main_~y~0#1| 0)) (.cse64 (<= |ULTIMATE.start_main_~y~0#1| 39)) (.cse65 (<= 39 |ULTIMATE.start_main_~y~0#1|)) (.cse72 (<= 11 |ULTIMATE.start_main_~y~0#1|)) (.cse73 (<= |ULTIMATE.start_main_~y~0#1| 11)) (.cse6 (<= |ULTIMATE.start_main_~y~0#1| 7)) (.cse7 (<= 7 |ULTIMATE.start_main_~y~0#1|)) (.cse70 (<= |ULTIMATE.start_main_~y~0#1| 28)) (.cse71 (<= 28 |ULTIMATE.start_main_~y~0#1|)) (.cse82 (<= |ULTIMATE.start_main_~y~0#1| 35)) (.cse83 (<= 35 |ULTIMATE.start_main_~y~0#1|)) (.cse66 (<= 19 |ULTIMATE.start_main_~y~0#1|)) (.cse67 (<= |ULTIMATE.start_main_~y~0#1| 19)) (.cse78 (<= 8 |ULTIMATE.start_main_~y~0#1|)) (.cse79 (<= |ULTIMATE.start_main_~y~0#1| 8)) (.cse18 (<= |ULTIMATE.start_main_~y~0#1| 43)) (.cse19 (<= 43 |ULTIMATE.start_main_~y~0#1|)) (.cse96 (<= |ULTIMATE.start_main_~y~0#1| 15)) (.cse97 (<= 15 |ULTIMATE.start_main_~y~0#1|)) (.cse92 (<= 20 |ULTIMATE.start_main_~y~0#1|)) (.cse93 (<= |ULTIMATE.start_main_~y~0#1| 20)) (.cse94 (<= |ULTIMATE.start_main_~y~0#1| 26)) (.cse95 (<= 26 |ULTIMATE.start_main_~y~0#1|)) (.cse0 (<= 5 |ULTIMATE.start_main_~y~0#1|)) (.cse1 (<= |ULTIMATE.start_main_~y~0#1| 5)) (.cse42 (<= 48 |ULTIMATE.start_main_~y~0#1|)) (.cse43 (<= |ULTIMATE.start_main_~y~0#1| 48)) (.cse36 (<= |ULTIMATE.start_main_~y~0#1| 29)) (.cse37 (<= 29 |ULTIMATE.start_main_~y~0#1|)) (.cse46 (<= 30 |ULTIMATE.start_main_~y~0#1|)) (.cse47 (<= |ULTIMATE.start_main_~y~0#1| 30)) (.cse88 (<= |ULTIMATE.start_main_~y~0#1| 33)) (.cse89 (<= 33 |ULTIMATE.start_main_~y~0#1|)) (.cse58 (<= |ULTIMATE.start_main_~y~0#1| 18)) (.cse59 (<= 18 |ULTIMATE.start_main_~y~0#1|)) (.cse86 (<= 13 |ULTIMATE.start_main_~y~0#1|)) (.cse87 (<= |ULTIMATE.start_main_~y~0#1| 13)) (.cse56 (<= 21 |ULTIMATE.start_main_~y~0#1|)) (.cse57 (<= |ULTIMATE.start_main_~y~0#1| 21)) (.cse38 (<= |ULTIMATE.start_main_~y~0#1| 45)) (.cse39 (<= 45 |ULTIMATE.start_main_~y~0#1|)) (.cse50 (<= 12 |ULTIMATE.start_main_~y~0#1|)) (.cse51 (<= |ULTIMATE.start_main_~y~0#1| 12)) (.cse68 (<= 6 |ULTIMATE.start_main_~y~0#1|)) (.cse69 (<= |ULTIMATE.start_main_~y~0#1| 6)) (.cse16 (<= |ULTIMATE.start_main_~y~0#1| 46)) (.cse17 (<= 46 |ULTIMATE.start_main_~y~0#1|)) (.cse22 (<= 3 |ULTIMATE.start_main_~y~0#1|)) (.cse23 (<= |ULTIMATE.start_main_~y~0#1| 3)) (.cse98 (<= 25 |ULTIMATE.start_main_~y~0#1|)) (.cse99 (<= |ULTIMATE.start_main_~y~0#1| 25)) (.cse76 (<= |ULTIMATE.start_main_~y~0#1| 40)) (.cse77 (<= 40 |ULTIMATE.start_main_~y~0#1|)) (.cse74 (<= 23 |ULTIMATE.start_main_~y~0#1|)) (.cse75 (<= |ULTIMATE.start_main_~y~0#1| 23)) (.cse84 (<= 36 |ULTIMATE.start_main_~y~0#1|)) (.cse85 (<= |ULTIMATE.start_main_~y~0#1| 36)) (.cse54 (<= |ULTIMATE.start_main_~y~0#1| 37)) (.cse55 (<= 37 |ULTIMATE.start_main_~y~0#1|)) (.cse52 (<= 32 |ULTIMATE.start_main_~y~0#1|)) (.cse53 (<= |ULTIMATE.start_main_~y~0#1| 32)) (.cse40 (<= |ULTIMATE.start_main_~y~0#1| 44)) (.cse41 (<= 44 |ULTIMATE.start_main_~y~0#1|)) (.cse80 (<= 41 |ULTIMATE.start_main_~y~0#1|)) (.cse81 (<= |ULTIMATE.start_main_~y~0#1| 41)) (.cse44 (<= |ULTIMATE.start_main_~y~0#1| 24)) (.cse45 (<= 24 |ULTIMATE.start_main_~y~0#1|)) (.cse28 (<= 38 |ULTIMATE.start_main_~y~0#1|)) (.cse29 (<= |ULTIMATE.start_main_~y~0#1| 38)) (.cse2 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse3 (<= 2 |ULTIMATE.start_main_~y~0#1|)) (.cse90 (<= |ULTIMATE.start_main_~y~0#1| 47)) (.cse91 (<= 47 |ULTIMATE.start_main_~y~0#1|))) (or (and (= 5 |ULTIMATE.start_main_~x~0#1|) .cse0 .cse1) (and (= 2 |ULTIMATE.start_main_~x~0#1|) .cse2 .cse3) (and .cse4 (= 49 |ULTIMATE.start_main_~x~0#1|) .cse5) (and .cse6 (= 7 |ULTIMATE.start_main_~x~0#1|) .cse7) (and .cse8 .cse9 (= |ULTIMATE.start_main_~x~0#1| 4)) (and .cse10 .cse11 (= |ULTIMATE.start_main_~x~0#1| 17)) (and .cse12 .cse13 (= 42 |ULTIMATE.start_main_~x~0#1|)) (and (= 9 |ULTIMATE.start_main_~x~0#1|) .cse14 .cse15) (and (<= 54 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 54) .cse16 .cse17) (and (<= 57 |ULTIMATE.start_main_~x~0#1|) .cse18 .cse19 (<= |ULTIMATE.start_main_~x~0#1| 57)) (and (<= 69 |ULTIMATE.start_main_~x~0#1|) .cse20 .cse21 (<= |ULTIMATE.start_main_~x~0#1| 69)) (and .cse4 .cse5 (<= 51 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 51)) (and (= 3 |ULTIMATE.start_main_~x~0#1|) .cse22 .cse23) (and .cse24 (<= |ULTIMATE.start_main_~x~0#1| 100) (not .cse25)) (and .cse26 .cse27 (= |ULTIMATE.start_main_~x~0#1| 27)) (and .cse28 .cse29 (<= |ULTIMATE.start_main_~x~0#1| 62) (<= 62 |ULTIMATE.start_main_~x~0#1|)) (and (<= |ULTIMATE.start_main_~x~0#1| 78) .cse30 (<= 78 |ULTIMATE.start_main_~x~0#1|) .cse31) (and (= |ULTIMATE.start_main_~x~0#1| 34) .cse32 .cse33) (and (= 31 |ULTIMATE.start_main_~x~0#1|) .cse20 .cse21) (and (<= |ULTIMATE.start_main_~x~0#1| 86) .cse34 (<= 86 |ULTIMATE.start_main_~x~0#1|) .cse35) (and (<= 71 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 71) .cse36 .cse37) (and .cse38 (= |ULTIMATE.start_main_~x~0#1| 45) .cse39) (and .cse40 .cse41 (= 44 |ULTIMATE.start_main_~x~0#1|)) (and .cse42 .cse43 (<= 52 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 52)) (and .cse44 (<= |ULTIMATE.start_main_~x~0#1| 76) .cse45 (<= 76 |ULTIMATE.start_main_~x~0#1|)) (and .cse46 .cse47 (= 30 |ULTIMATE.start_main_~x~0#1|)) (and .cse48 (= |ULTIMATE.start_main_~x~0#1| 1) .cse49) (and .cse50 .cse51 (= |ULTIMATE.start_main_~x~0#1| 12)) (and .cse52 (<= 68 |ULTIMATE.start_main_~x~0#1|) .cse53 (<= |ULTIMATE.start_main_~x~0#1| 68)) (and .cse10 .cse11 (<= 83 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 83)) (and .cse54 .cse55 (= |ULTIMATE.start_main_~x~0#1| 37)) (and .cse12 .cse13 (<= 58 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 58)) (and .cse56 .cse57 (= 21 |ULTIMATE.start_main_~x~0#1|)) (and (= 22 |ULTIMATE.start_main_~x~0#1|) .cse30 .cse31) (and .cse58 .cse59 (= |ULTIMATE.start_main_~x~0#1| 18)) (and .cse60 (<= |ULTIMATE.start_main_~x~0#1| 84) (<= 84 |ULTIMATE.start_main_~x~0#1|) .cse61) (and (<= |ULTIMATE.start_main_~x~0#1| 90) .cse62 .cse63 (<= 90 |ULTIMATE.start_main_~x~0#1|)) (and (<= |ULTIMATE.start_main_~x~0#1| 61) .cse64 .cse65 (<= 61 |ULTIMATE.start_main_~x~0#1|)) (and (<= |ULTIMATE.start_main_~x~0#1| 66) .cse32 (<= 66 |ULTIMATE.start_main_~x~0#1|) .cse33) (and .cse34 (= 14 |ULTIMATE.start_main_~x~0#1|) .cse35) (and .cse66 (= 19 |ULTIMATE.start_main_~x~0#1|) .cse67) (and .cse68 (<= 94 |ULTIMATE.start_main_~x~0#1|) .cse69 (<= |ULTIMATE.start_main_~x~0#1| 94)) (and .cse70 (<= 72 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 72) .cse71) (and (= |ULTIMATE.start_main_~x~0#1| 11) .cse72 .cse73) (and .cse60 (= 16 |ULTIMATE.start_main_~x~0#1|) .cse61) (and .cse74 (= 23 |ULTIMATE.start_main_~x~0#1|) .cse75) (and (<= 99 |ULTIMATE.start_main_~x~0#1|) .cse48 .cse49 .cse25) (and .cse76 (<= |ULTIMATE.start_main_~x~0#1| 60) (<= 60 |ULTIMATE.start_main_~x~0#1|) .cse77) (and (<= 92 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 92) .cse78 .cse79) (and .cse26 (<= |ULTIMATE.start_main_~x~0#1| 73) .cse27 (<= 73 |ULTIMATE.start_main_~x~0#1|)) (and (= 41 |ULTIMATE.start_main_~x~0#1|) .cse80 .cse81) (and .cse82 .cse83 (= 35 |ULTIMATE.start_main_~x~0#1|)) (and (= |ULTIMATE.start_main_~x~0#1| 36) .cse84 .cse85) (and (<= |ULTIMATE.start_main_~x~0#1| 91) (<= 91 |ULTIMATE.start_main_~x~0#1|) .cse14 .cse15) (and .cse8 .cse9 (<= |ULTIMATE.start_main_~x~0#1| 96) (<= 96 |ULTIMATE.start_main_~x~0#1|)) (and (<= 87 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 87) .cse86 .cse87) (and (<= |ULTIMATE.start_main_~x~0#1| 67) .cse88 (<= 67 |ULTIMATE.start_main_~x~0#1|) .cse89) (and .cse90 (<= |ULTIMATE.start_main_~x~0#1| 53) .cse91 (<= 53 |ULTIMATE.start_main_~x~0#1|)) (and .cse62 .cse63 (= |ULTIMATE.start_main_~x~0#1| 10)) (and .cse24 (= |ULTIMATE.start_main_~x~0#1| 0)) (and .cse64 .cse65 (= |ULTIMATE.start_main_~x~0#1| 39)) (and .cse92 .cse93 (= |ULTIMATE.start_main_~x~0#1| 20)) (and (<= |ULTIMATE.start_main_~x~0#1| 89) .cse72 (<= 89 |ULTIMATE.start_main_~x~0#1|) .cse73) (and (<= |ULTIMATE.start_main_~x~0#1| 74) .cse94 (<= 74 |ULTIMATE.start_main_~x~0#1|) .cse95) (and .cse6 (<= 93 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 93) .cse7) (and .cse70 .cse71 (= |ULTIMATE.start_main_~x~0#1| 28)) (and .cse82 .cse83 (<= 65 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 65)) (and (<= 81 |ULTIMATE.start_main_~x~0#1|) .cse66 (<= |ULTIMATE.start_main_~x~0#1| 81) .cse67) (and .cse96 (= |ULTIMATE.start_main_~x~0#1| 15) .cse97) (and .cse78 (= |ULTIMATE.start_main_~x~0#1| 8) .cse79) (and .cse18 .cse19 (= |ULTIMATE.start_main_~x~0#1| 43)) (and .cse96 (<= 85 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 85) .cse97) (and (<= 80 |ULTIMATE.start_main_~x~0#1|) .cse92 .cse93 (<= |ULTIMATE.start_main_~x~0#1| 80)) (and .cse94 (= |ULTIMATE.start_main_~x~0#1| 26) .cse95) (and .cse0 .cse1 (<= 95 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 95)) (and .cse42 .cse43 (= |ULTIMATE.start_main_~x~0#1| 48)) (and .cse36 (= 29 |ULTIMATE.start_main_~x~0#1|) .cse37) (and (<= |ULTIMATE.start_main_~x~0#1| 70) .cse46 (<= 70 |ULTIMATE.start_main_~x~0#1|) .cse47) (and .cse88 (= |ULTIMATE.start_main_~x~0#1| 33) .cse89) (and (<= 82 |ULTIMATE.start_main_~x~0#1|) .cse58 .cse59 (<= |ULTIMATE.start_main_~x~0#1| 82)) (and (= |ULTIMATE.start_main_~x~0#1| 13) .cse86 .cse87) (and .cse56 .cse57 (<= |ULTIMATE.start_main_~x~0#1| 79) (<= 79 |ULTIMATE.start_main_~x~0#1|)) (and .cse38 (<= |ULTIMATE.start_main_~x~0#1| 55) (<= 55 |ULTIMATE.start_main_~x~0#1|) .cse39) (and (<= |ULTIMATE.start_main_~x~0#1| 75) .cse98 .cse99 (<= 75 |ULTIMATE.start_main_~x~0#1|)) (and (<= 50 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 50) (<= |ULTIMATE.start_main_~y~0#1| 50) (<= 50 |ULTIMATE.start_main_~y~0#1|)) (and .cse50 .cse51 (<= 88 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 88)) (and .cse68 .cse69 (= 6 |ULTIMATE.start_main_~x~0#1|)) (and .cse16 .cse17 (= 46 |ULTIMATE.start_main_~x~0#1|)) (and (<= 97 |ULTIMATE.start_main_~x~0#1|) .cse22 (<= |ULTIMATE.start_main_~x~0#1| 97) .cse23) (and .cse98 .cse99 (= |ULTIMATE.start_main_~x~0#1| 25)) (and .cse76 .cse77 (= 40 |ULTIMATE.start_main_~x~0#1|)) (and .cse74 (<= |ULTIMATE.start_main_~x~0#1| 77) .cse75 (<= 77 |ULTIMATE.start_main_~x~0#1|)) (and (<= |ULTIMATE.start_main_~x~0#1| 64) (<= 64 |ULTIMATE.start_main_~x~0#1|) .cse84 .cse85) (and (<= |ULTIMATE.start_main_~x~0#1| 63) .cse54 .cse55 (<= 63 |ULTIMATE.start_main_~x~0#1|)) (and .cse52 (= 32 |ULTIMATE.start_main_~x~0#1|) .cse53) (and (<= |ULTIMATE.start_main_~x~0#1| 56) .cse40 (<= 56 |ULTIMATE.start_main_~x~0#1|) .cse41) (and (<= |ULTIMATE.start_main_~x~0#1| 59) .cse80 .cse81 (<= 59 |ULTIMATE.start_main_~x~0#1|)) (and .cse44 (= |ULTIMATE.start_main_~x~0#1| 24) .cse45) (and (= |ULTIMATE.start_main_~x~0#1| 38) .cse28 .cse29) (and .cse2 (<= 98 |ULTIMATE.start_main_~x~0#1|) .cse3 (<= |ULTIMATE.start_main_~x~0#1| 98)) (and .cse90 .cse91 (= 47 |ULTIMATE.start_main_~x~0#1|)))) [2023-02-14 23:15:04,891 INFO L899 garLoopResultBuilder]: For program point L28-3(lines 28 36) no Hoare annotation was computed. [2023-02-14 23:15:04,891 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-02-14 23:15:04,891 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2023-02-14 23:15:04,891 INFO L902 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2023-02-14 23:15:04,894 INFO L445 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1] [2023-02-14 23:15:04,897 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-14 23:15:04,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 11:15:04 BoogieIcfgContainer [2023-02-14 23:15:04,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-14 23:15:04,953 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 23:15:04,953 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 23:15:04,954 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 23:15:04,954 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 11:14:26" (3/4) ... [2023-02-14 23:15:04,957 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-14 23:15:04,968 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-02-14 23:15:04,969 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-02-14 23:15:04,969 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-14 23:15:04,969 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-14 23:15:05,000 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-14 23:15:05,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 23:15:05,001 INFO L158 Benchmark]: Toolchain (without parser) took 39214.96ms. Allocated memory was 132.1MB in the beginning and 549.5MB in the end (delta: 417.3MB). Free memory was 93.7MB in the beginning and 406.8MB in the end (delta: -313.1MB). Peak memory consumption was 107.1MB. Max. memory is 16.1GB. [2023-02-14 23:15:05,001 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 23:15:05,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.77ms. Allocated memory is still 132.1MB. Free memory was 93.5MB in the beginning and 83.2MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-14 23:15:05,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.42ms. Allocated memory is still 132.1MB. Free memory was 83.2MB in the beginning and 81.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 23:15:05,003 INFO L158 Benchmark]: Boogie Preprocessor took 26.57ms. Allocated memory is still 132.1MB. Free memory was 81.7MB in the beginning and 81.1MB in the end (delta: 663.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 23:15:05,003 INFO L158 Benchmark]: RCFGBuilder took 192.27ms. Allocated memory is still 132.1MB. Free memory was 80.9MB in the beginning and 71.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-14 23:15:05,003 INFO L158 Benchmark]: TraceAbstraction took 38724.47ms. Allocated memory was 132.1MB in the beginning and 549.5MB in the end (delta: 417.3MB). Free memory was 70.6MB in the beginning and 408.9MB in the end (delta: -338.3MB). Peak memory consumption was 308.4MB. Max. memory is 16.1GB. [2023-02-14 23:15:05,004 INFO L158 Benchmark]: Witness Printer took 47.74ms. Allocated memory is still 549.5MB. Free memory was 408.9MB in the beginning and 406.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 23:15:05,005 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 61.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 190.77ms. Allocated memory is still 132.1MB. Free memory was 93.5MB in the beginning and 83.2MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.42ms. Allocated memory is still 132.1MB. Free memory was 83.2MB in the beginning and 81.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.57ms. Allocated memory is still 132.1MB. Free memory was 81.7MB in the beginning and 81.1MB in the end (delta: 663.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 192.27ms. Allocated memory is still 132.1MB. Free memory was 80.9MB in the beginning and 71.3MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 38724.47ms. Allocated memory was 132.1MB in the beginning and 549.5MB in the end (delta: 417.3MB). Free memory was 70.6MB in the beginning and 408.9MB in the end (delta: -338.3MB). Peak memory consumption was 308.4MB. Max. memory is 16.1GB. * Witness Printer took 47.74ms. Allocated memory is still 549.5MB. Free memory was 408.9MB in the beginning and 406.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38.6s, OverallIterations: 12, TraceHistogramMax: 102, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 255 SdHoareTripleChecker+Valid, 6.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 255 mSDsluCounter, 16929 SdHoareTripleChecker+Invalid, 5.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16531 mSDsCounter, 192 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18846 IncrementalHoareTripleChecker+Invalid, 19038 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 192 mSolverCounterUnsat, 398 mSDtfsCounter, 18846 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2834 GetRequests, 2210 SyntacticMatches, 171 SemanticMatches, 453 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17828 ImplicationChecksByTransitivity, 13.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4186occurred in iteration=11, InterpolantAutomatonStates: 373, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 952 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 106 NumberOfFragments, 1161 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 5238 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 23.5s InterpolantComputationTime, 2530 NumberOfCodeBlocks, 2452 NumberOfCodeBlocksAsserted, 208 NumberOfCheckSat, 3754 ConstructedInterpolants, 0 QuantifiedInterpolants, 11882 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2909 ConjunctsInSsa, 468 ConjunctsInUnsatCore, 30 InterpolantComputations, 3 PerfectInterpolantSequences, 53726/131967 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((5 == x && 5 <= y) && y <= 5) || ((2 == x && y <= 2) && 2 <= y)) || ((49 <= y && 49 == x) && y <= 49)) || ((y <= 7 && 7 == x) && 7 <= y)) || ((4 <= y && y <= 4) && x == 4)) || ((17 <= y && y <= 17) && x == 17)) || ((42 <= y && y <= 42) && 42 == x)) || ((9 == x && y <= 9) && 9 <= y)) || (((54 <= x && x <= 54) && y <= 46) && 46 <= y)) || (((57 <= x && y <= 43) && 43 <= y) && x <= 57)) || (((69 <= x && 31 <= y) && y <= 31) && x <= 69)) || (((49 <= y && y <= 49) && 51 <= x) && x <= 51)) || ((3 == x && 3 <= y) && y <= 3)) || ((y == 0 && x <= 100) && !(x <= 99))) || ((y <= 27 && 27 <= y) && x == 27)) || (((38 <= y && y <= 38) && x <= 62) && 62 <= x)) || (((x <= 78 && 22 <= y) && 78 <= x) && y <= 22)) || ((x == 34 && 34 <= y) && y <= 34)) || ((31 == x && 31 <= y) && y <= 31)) || (((x <= 86 && y <= 14) && 86 <= x) && 14 <= y)) || (((71 <= x && x <= 71) && y <= 29) && 29 <= y)) || ((y <= 45 && x == 45) && 45 <= y)) || ((y <= 44 && 44 <= y) && 44 == x)) || (((48 <= y && y <= 48) && 52 <= x) && x <= 52)) || (((y <= 24 && x <= 76) && 24 <= y) && 76 <= x)) || ((30 <= y && y <= 30) && 30 == x)) || ((1 <= y && x == 1) && y <= 1)) || ((12 <= y && y <= 12) && x == 12)) || (((32 <= y && 68 <= x) && y <= 32) && x <= 68)) || (((17 <= y && y <= 17) && 83 <= x) && x <= 83)) || ((y <= 37 && 37 <= y) && x == 37)) || (((42 <= y && y <= 42) && 58 <= x) && x <= 58)) || ((21 <= y && y <= 21) && 21 == x)) || ((22 == x && 22 <= y) && y <= 22)) || ((y <= 18 && 18 <= y) && x == 18)) || (((16 <= y && x <= 84) && 84 <= x) && y <= 16)) || (((x <= 90 && 10 <= y) && y <= 10) && 90 <= x)) || (((x <= 61 && y <= 39) && 39 <= y) && 61 <= x)) || (((x <= 66 && 34 <= y) && 66 <= x) && y <= 34)) || ((y <= 14 && 14 == x) && 14 <= y)) || ((19 <= y && 19 == x) && y <= 19)) || (((6 <= y && 94 <= x) && y <= 6) && x <= 94)) || (((y <= 28 && 72 <= x) && x <= 72) && 28 <= y)) || ((x == 11 && 11 <= y) && y <= 11)) || ((16 <= y && 16 == x) && y <= 16)) || ((23 <= y && 23 == x) && y <= 23)) || (((99 <= x && 1 <= y) && y <= 1) && x <= 99)) || (((y <= 40 && x <= 60) && 60 <= x) && 40 <= y)) || (((92 <= x && x <= 92) && 8 <= y) && y <= 8)) || (((y <= 27 && x <= 73) && 27 <= y) && 73 <= x)) || ((41 == x && 41 <= y) && y <= 41)) || ((y <= 35 && 35 <= y) && 35 == x)) || ((x == 36 && 36 <= y) && y <= 36)) || (((x <= 91 && 91 <= x) && y <= 9) && 9 <= y)) || (((4 <= y && y <= 4) && x <= 96) && 96 <= x)) || (((87 <= x && x <= 87) && 13 <= y) && y <= 13)) || (((x <= 67 && y <= 33) && 67 <= x) && 33 <= y)) || (((y <= 47 && x <= 53) && 47 <= y) && 53 <= x)) || ((10 <= y && y <= 10) && x == 10)) || (y == 0 && x == 0)) || ((y <= 39 && 39 <= y) && x == 39)) || ((20 <= y && y <= 20) && x == 20)) || (((x <= 89 && 11 <= y) && 89 <= x) && y <= 11)) || (((x <= 74 && y <= 26) && 74 <= x) && 26 <= y)) || (((y <= 7 && 93 <= x) && x <= 93) && 7 <= y)) || ((y <= 28 && 28 <= y) && x == 28)) || (((y <= 35 && 35 <= y) && 65 <= x) && x <= 65)) || (((81 <= x && 19 <= y) && x <= 81) && y <= 19)) || ((y <= 15 && x == 15) && 15 <= y)) || ((8 <= y && x == 8) && y <= 8)) || ((y <= 43 && 43 <= y) && x == 43)) || (((y <= 15 && 85 <= x) && x <= 85) && 15 <= y)) || (((80 <= x && 20 <= y) && y <= 20) && x <= 80)) || ((y <= 26 && x == 26) && 26 <= y)) || (((5 <= y && y <= 5) && 95 <= x) && x <= 95)) || ((48 <= y && y <= 48) && x == 48)) || ((y <= 29 && 29 == x) && 29 <= y)) || (((x <= 70 && 30 <= y) && 70 <= x) && y <= 30)) || ((y <= 33 && x == 33) && 33 <= y)) || (((82 <= x && y <= 18) && 18 <= y) && x <= 82)) || ((x == 13 && 13 <= y) && y <= 13)) || (((21 <= y && y <= 21) && x <= 79) && 79 <= x)) || (((y <= 45 && x <= 55) && 55 <= x) && 45 <= y)) || (((x <= 75 && 25 <= y) && y <= 25) && 75 <= x)) || (((50 <= x && x <= 50) && y <= 50) && 50 <= y)) || (((12 <= y && y <= 12) && 88 <= x) && x <= 88)) || ((6 <= y && y <= 6) && 6 == x)) || ((y <= 46 && 46 <= y) && 46 == x)) || (((97 <= x && 3 <= y) && x <= 97) && y <= 3)) || ((25 <= y && y <= 25) && x == 25)) || ((y <= 40 && 40 <= y) && 40 == x)) || (((23 <= y && x <= 77) && y <= 23) && 77 <= x)) || (((x <= 64 && 64 <= x) && 36 <= y) && y <= 36)) || (((x <= 63 && y <= 37) && 37 <= y) && 63 <= x)) || ((32 <= y && 32 == x) && y <= 32)) || (((x <= 56 && y <= 44) && 56 <= x) && 44 <= y)) || (((x <= 59 && 41 <= y) && y <= 41) && 59 <= x)) || ((y <= 24 && x == 24) && 24 <= y)) || ((x == 38 && 38 <= y) && y <= 38)) || (((y <= 2 && 98 <= x) && 2 <= y) && x <= 98)) || ((y <= 47 && 47 <= y) && 47 == x) RESULT: Ultimate proved your program to be correct! [2023-02-14 23:15:05,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE