./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.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 c8661b1e533413e4de6576c4feab251d05a672526bd5f59b260c6cb9f9c05939 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:58:27,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:58:27,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:58:27,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:58:27,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:58:27,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:58:27,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:58:27,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:58:27,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:58:27,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:58:27,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:58:27,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:58:27,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:58:27,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:58:27,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:58:27,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:58:27,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:58:27,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:58:27,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:58:27,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:58:27,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:58:27,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:58:27,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:58:27,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:58:27,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:58:27,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:58:27,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:58:27,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:58:27,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:58:27,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:58:27,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:58:27,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:58:27,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:58:27,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:58:27,182 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:58:27,182 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:58:27,183 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:58:27,183 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:58:27,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:58:27,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:58:27,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:58:27,185 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:58:27,199 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:58:27,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:58:27,204 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:58:27,204 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:58:27,204 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:58:27,205 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:58:27,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:58:27,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:58:27,205 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:58:27,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:58:27,206 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:58:27,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:58:27,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:58:27,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:58:27,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:58:27,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:58:27,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:58:27,207 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:58:27,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:58:27,207 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:58:27,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:58:27,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:58:27,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:58:27,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:58:27,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:58:27,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:58:27,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:58:27,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:58:27,209 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:58:27,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:58:27,209 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:58:27,210 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:58:27,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:58:27,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:58:27,210 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8661b1e533413e4de6576c4feab251d05a672526bd5f59b260c6cb9f9c05939 [2021-12-15 10:58:27,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:58:27,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:58:27,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:58:27,417 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:58:27,418 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:58:27,418 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2021-12-15 10:58:27,479 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb463ede6/3d1a8f686dd044f5987b78b6609a6593/FLAG1ba19ab72 [2021-12-15 10:58:27,831 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:58:27,832 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2021-12-15 10:58:27,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb463ede6/3d1a8f686dd044f5987b78b6609a6593/FLAG1ba19ab72 [2021-12-15 10:58:27,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb463ede6/3d1a8f686dd044f5987b78b6609a6593 [2021-12-15 10:58:27,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:58:27,855 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:58:27,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:58:27,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:58:27,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:58:27,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:58:27" (1/1) ... [2021-12-15 10:58:27,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1566240a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:58:27, skipping insertion in model container [2021-12-15 10:58:27,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:58:27" (1/1) ... [2021-12-15 10:58:27,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:58:27,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:58:27,970 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i[873,886] [2021-12-15 10:58:27,978 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:58:27,996 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:58:28,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i[873,886] [2021-12-15 10:58:28,007 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:58:28,017 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:58:28,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:58:28 WrapperNode [2021-12-15 10:58:28,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:58:28,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:58:28,018 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:58:28,018 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:58:28,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:58:28" (1/1) ... [2021-12-15 10:58:28,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:58:28" (1/1) ... [2021-12-15 10:58:28,043 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2021-12-15 10:58:28,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:58:28,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:58:28,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:58:28,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:58:28,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:58:28" (1/1) ... [2021-12-15 10:58:28,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:58:28" (1/1) ... [2021-12-15 10:58:28,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:58:28" (1/1) ... [2021-12-15 10:58:28,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:58:28" (1/1) ... [2021-12-15 10:58:28,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:58:28" (1/1) ... [2021-12-15 10:58:28,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:58:28" (1/1) ... [2021-12-15 10:58:28,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:58:28" (1/1) ... [2021-12-15 10:58:28,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:58:28,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:58:28,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:58:28,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:58:28,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:58:28" (1/1) ... [2021-12-15 10:58:28,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:58:28,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:58:28,076 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) [2021-12-15 10:58:28,078 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 [2021-12-15 10:58:28,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:58:28,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 10:58:28,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:58:28,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:58:28,135 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:58:28,136 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:58:28,205 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:58:28,209 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:58:28,209 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 10:58:28,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:58:28 BoogieIcfgContainer [2021-12-15 10:58:28,211 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:58:28,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:58:28,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:58:28,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:58:28,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:58:27" (1/3) ... [2021-12-15 10:58:28,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52070344 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:58:28, skipping insertion in model container [2021-12-15 10:58:28,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:58:28" (2/3) ... [2021-12-15 10:58:28,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52070344 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:58:28, skipping insertion in model container [2021-12-15 10:58:28,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:58:28" (3/3) ... [2021-12-15 10:58:28,216 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark23_conjunctive.i [2021-12-15 10:58:28,219 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:58:28,220 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:58:28,251 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:58:28,257 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 10:58:28,257 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:58:28,265 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:28,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-15 10:58:28,269 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:58:28,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:58:28,270 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:58:28,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:58:28,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1807089479, now seen corresponding path program 1 times [2021-12-15 10:58:28,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:58:28,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120723998] [2021-12-15 10:58:28,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:58:28,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:58:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:58:28,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:28,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 10:58:28,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120723998] [2021-12-15 10:58:28,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120723998] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:58:28,387 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:58:28,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 10:58:28,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940439655] [2021-12-15 10:58:28,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:58:28,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 10:58:28,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 10:58:28,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 10:58:28,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:58:28,421 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:28,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:58:28,431 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2021-12-15 10:58:28,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 10:58:28,433 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-15 10:58:28,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:58:28,438 INFO L225 Difference]: With dead ends: 20 [2021-12-15 10:58:28,438 INFO L226 Difference]: Without dead ends: 8 [2021-12-15 10:58:28,441 INFO L932 BasicCegarLoop]: 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 [2021-12-15 10:58:28,445 INFO L933 BasicCegarLoop]: 13 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, 13 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 [2021-12-15 10:58:28,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:58:28,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-12-15 10:58:28,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-12-15 10:58:28,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 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) [2021-12-15 10:58:28,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-12-15 10:58:28,470 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 7 [2021-12-15 10:58:28,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:58:28,471 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-12-15 10:58:28,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:28,471 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-12-15 10:58:28,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-15 10:58:28,472 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:58:28,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:58:28,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 10:58:28,473 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:58:28,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:58:28,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1806970315, now seen corresponding path program 1 times [2021-12-15 10:58:28,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:58:28,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940319470] [2021-12-15 10:58:28,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:58:28,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:58:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:58:28,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:28,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 10:58:28,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940319470] [2021-12-15 10:58:28,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940319470] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:58:28,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:58:28,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 10:58:28,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497364895] [2021-12-15 10:58:28,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:58:28,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 10:58:28,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 10:58:28,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 10:58:28,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 10:58:28,541 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:28,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:58:28,564 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-12-15 10:58:28,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 10:58:28,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-15 10:58:28,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:58:28,565 INFO L225 Difference]: With dead ends: 13 [2021-12-15 10:58:28,565 INFO L226 Difference]: Without dead ends: 9 [2021-12-15 10:58:28,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 10:58:28,566 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:58:28,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:58:28,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-12-15 10:58:28,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-12-15 10:58:28,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:28,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-12-15 10:58:28,585 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2021-12-15 10:58:28,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:58:28,585 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-12-15 10:58:28,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:28,586 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-12-15 10:58:28,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-15 10:58:28,586 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:58:28,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:58:28,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 10:58:28,586 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:58:28,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:58:28,587 INFO L85 PathProgramCache]: Analyzing trace with hash 183170323, now seen corresponding path program 1 times [2021-12-15 10:58:28,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:58:28,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88220089] [2021-12-15 10:58:28,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:58:28,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:58:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:58:28,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:28,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 10:58:28,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88220089] [2021-12-15 10:58:28,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88220089] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 10:58:28,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1754534018] [2021-12-15 10:58:28,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:58:28,628 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 10:58:28,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:58:28,644 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) [2021-12-15 10:58:28,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 10:58:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:58:28,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 10:58:28,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:58:28,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:28,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 10:58:28,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:28,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1754534018] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 10:58:28,755 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 10:58:28,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-12-15 10:58:28,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368246684] [2021-12-15 10:58:28,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 10:58:28,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 10:58:28,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 10:58:28,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 10:58:28,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-15 10:58:28,757 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:28,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:58:28,767 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2021-12-15 10:58:28,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 10:58:28,768 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-15 10:58:28,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:58:28,768 INFO L225 Difference]: With dead ends: 16 [2021-12-15 10:58:28,769 INFO L226 Difference]: Without dead ends: 12 [2021-12-15 10:58:28,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-15 10:58:28,770 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:58:28,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:58:28,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-12-15 10:58:28,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-12-15 10:58:28,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 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) [2021-12-15 10:58:28,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-12-15 10:58:28,772 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2021-12-15 10:58:28,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:58:28,773 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2021-12-15 10:58:28,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:28,773 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-12-15 10:58:28,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-15 10:58:28,773 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:58:28,773 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:58:28,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-15 10:58:28,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 10:58:28,987 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:58:28,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:58:28,988 INFO L85 PathProgramCache]: Analyzing trace with hash -422592565, now seen corresponding path program 2 times [2021-12-15 10:58:28,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:58:28,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466777356] [2021-12-15 10:58:28,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:58:28,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:58:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:58:29,067 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:29,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 10:58:29,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466777356] [2021-12-15 10:58:29,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466777356] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 10:58:29,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510647932] [2021-12-15 10:58:29,068 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-15 10:58:29,068 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 10:58:29,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:58:29,069 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) [2021-12-15 10:58:29,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 10:58:29,095 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-15 10:58:29,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-15 10:58:29,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-15 10:58:29,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:58:29,125 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:29,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 10:58:29,213 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:29,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510647932] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 10:58:29,214 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 10:58:29,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2021-12-15 10:58:29,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281057724] [2021-12-15 10:58:29,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 10:58:29,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-15 10:58:29,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 10:58:29,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-15 10:58:29,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-12-15 10:58:29,215 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 12 states, 12 states have (on average 1.4166666666666667) 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) [2021-12-15 10:58:29,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:58:29,233 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2021-12-15 10:58:29,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-15 10:58:29,233 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.4166666666666667) 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) Word has length 11 [2021-12-15 10:58:29,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:58:29,233 INFO L225 Difference]: With dead ends: 22 [2021-12-15 10:58:29,234 INFO L226 Difference]: Without dead ends: 18 [2021-12-15 10:58:29,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-12-15 10:58:29,235 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:58:29,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:58:29,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-12-15 10:58:29,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-12-15 10:58:29,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:29,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-12-15 10:58:29,252 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2021-12-15 10:58:29,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:58:29,252 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-12-15 10:58:29,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.4166666666666667) 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) [2021-12-15 10:58:29,252 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-12-15 10:58:29,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-15 10:58:29,253 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:58:29,253 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:58:29,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 10:58:29,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-15 10:58:29,454 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:58:29,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:58:29,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1035090635, now seen corresponding path program 3 times [2021-12-15 10:58:29,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:58:29,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302855984] [2021-12-15 10:58:29,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:58:29,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:58:29,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:58:29,555 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:29,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 10:58:29,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302855984] [2021-12-15 10:58:29,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302855984] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 10:58:29,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100791724] [2021-12-15 10:58:29,556 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-15 10:58:29,557 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 10:58:29,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:58:29,558 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) [2021-12-15 10:58:29,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-15 10:58:29,591 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-12-15 10:58:29,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-15 10:58:29,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-15 10:58:29,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:58:29,650 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:29,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 10:58:29,837 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:29,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100791724] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 10:58:29,839 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 10:58:29,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 24 [2021-12-15 10:58:29,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911936940] [2021-12-15 10:58:29,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 10:58:29,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-15 10:58:29,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 10:58:29,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-15 10:58:29,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-12-15 10:58:29,844 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:29,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:58:29,892 INFO L93 Difference]: Finished difference Result 34 states and 45 transitions. [2021-12-15 10:58:29,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-15 10:58:29,893 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-15 10:58:29,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:58:29,894 INFO L225 Difference]: With dead ends: 34 [2021-12-15 10:58:29,894 INFO L226 Difference]: Without dead ends: 30 [2021-12-15 10:58:29,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-12-15 10:58:29,898 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:58:29,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:58:29,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-12-15 10:58:29,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-12-15 10:58:29,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 29 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:29,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2021-12-15 10:58:29,904 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 17 [2021-12-15 10:58:29,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:58:29,904 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2021-12-15 10:58:29,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:29,904 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2021-12-15 10:58:29,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-15 10:58:29,905 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:58:29,905 INFO L514 BasicCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:58:29,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-15 10:58:30,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 10:58:30,106 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:58:30,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:58:30,106 INFO L85 PathProgramCache]: Analyzing trace with hash 160329931, now seen corresponding path program 4 times [2021-12-15 10:58:30,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:58:30,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051103950] [2021-12-15 10:58:30,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:58:30,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:58:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:58:30,408 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:30,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 10:58:30,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051103950] [2021-12-15 10:58:30,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051103950] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 10:58:30,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566321361] [2021-12-15 10:58:30,409 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-15 10:58:30,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 10:58:30,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:58:30,410 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) [2021-12-15 10:58:30,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-15 10:58:30,447 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-15 10:58:30,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-15 10:58:30,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-15 10:58:30,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:58:30,505 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:30,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 10:58:31,122 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:31,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566321361] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 10:58:31,122 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 10:58:31,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 48 [2021-12-15 10:58:31,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932303255] [2021-12-15 10:58:31,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 10:58:31,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-12-15 10:58:31,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 10:58:31,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-12-15 10:58:31,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-12-15 10:58:31,124 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 48 states, 48 states have (on average 1.1041666666666667) internal successors, (53), 48 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:31,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:58:31,189 INFO L93 Difference]: Finished difference Result 58 states and 81 transitions. [2021-12-15 10:58:31,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-15 10:58:31,189 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 1.1041666666666667) internal successors, (53), 48 states have internal predecessors, (53), 0 states have call successors, (0), 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 29 [2021-12-15 10:58:31,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:58:31,194 INFO L225 Difference]: With dead ends: 58 [2021-12-15 10:58:31,194 INFO L226 Difference]: Without dead ends: 54 [2021-12-15 10:58:31,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-12-15 10:58:31,197 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:58:31,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:58:31,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-12-15 10:58:31,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-12-15 10:58:31,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 53 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:31,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2021-12-15 10:58:31,215 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 29 [2021-12-15 10:58:31,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:58:31,215 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2021-12-15 10:58:31,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 1.1041666666666667) internal successors, (53), 48 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:31,217 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2021-12-15 10:58:31,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-15 10:58:31,218 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:58:31,218 INFO L514 BasicCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:58:31,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-15 10:58:31,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 10:58:31,439 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:58:31,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:58:31,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1226580789, now seen corresponding path program 5 times [2021-12-15 10:58:31,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:58:31,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567503424] [2021-12-15 10:58:31,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:58:31,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:58:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:58:32,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:32,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 10:58:32,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567503424] [2021-12-15 10:58:32,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567503424] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 10:58:32,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642670276] [2021-12-15 10:58:32,245 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-15 10:58:32,245 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 10:58:32,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:58:32,246 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) [2021-12-15 10:58:32,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-15 10:58:32,301 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2021-12-15 10:58:32,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-15 10:58:32,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-15 10:58:32,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:58:32,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:32,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 10:58:34,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:34,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642670276] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 10:58:34,414 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 10:58:34,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 96 [2021-12-15 10:58:34,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600880521] [2021-12-15 10:58:34,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 10:58:34,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-12-15 10:58:34,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 10:58:34,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-12-15 10:58:34,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-12-15 10:58:34,419 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 96 states, 96 states have (on average 1.0520833333333333) internal successors, (101), 96 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:34,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:58:34,553 INFO L93 Difference]: Finished difference Result 106 states and 153 transitions. [2021-12-15 10:58:34,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-12-15 10:58:34,553 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 1.0520833333333333) internal successors, (101), 96 states have internal predecessors, (101), 0 states have call successors, (0), 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 53 [2021-12-15 10:58:34,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:58:34,554 INFO L225 Difference]: With dead ends: 106 [2021-12-15 10:58:34,554 INFO L226 Difference]: Without dead ends: 102 [2021-12-15 10:58:34,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-12-15 10:58:34,556 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 10:58:34,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 10:58:34,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-12-15 10:58:34,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-12-15 10:58:34,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.00990099009901) internal successors, (102), 101 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:34,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 102 transitions. [2021-12-15 10:58:34,563 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 102 transitions. Word has length 53 [2021-12-15 10:58:34,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:58:34,564 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 102 transitions. [2021-12-15 10:58:34,564 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 1.0520833333333333) internal successors, (101), 96 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:34,564 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 102 transitions. [2021-12-15 10:58:34,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-15 10:58:34,565 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:58:34,565 INFO L514 BasicCegarLoop]: trace histogram [94, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:58:34,583 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-15 10:58:34,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 10:58:34,783 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:58:34,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:58:34,783 INFO L85 PathProgramCache]: Analyzing trace with hash 839038155, now seen corresponding path program 6 times [2021-12-15 10:58:34,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:58:34,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525164782] [2021-12-15 10:58:34,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:58:34,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:58:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:58:37,392 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:37,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 10:58:37,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525164782] [2021-12-15 10:58:37,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525164782] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 10:58:37,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457009713] [2021-12-15 10:58:37,392 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-15 10:58:37,393 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 10:58:37,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:58:37,393 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) [2021-12-15 10:58:37,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-15 10:58:37,507 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 48 check-sat command(s) [2021-12-15 10:58:37,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-15 10:58:37,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 96 conjunts are in the unsatisfiable core [2021-12-15 10:58:37,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:58:37,708 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:37,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 10:58:38,208 INFO L134 CoverageAnalysis]: Checked inductivity of 4465 backedges. 0 proven. 4465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:38,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457009713] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 10:58:38,208 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 10:58:38,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 102 [2021-12-15 10:58:38,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297198497] [2021-12-15 10:58:38,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 10:58:38,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2021-12-15 10:58:38,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 10:58:38,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2021-12-15 10:58:38,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2021-12-15 10:58:38,212 INFO L87 Difference]: Start difference. First operand 102 states and 102 transitions. Second operand has 102 states, 102 states have (on average 1.0588235294117647) internal successors, (108), 102 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:38,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:58:38,290 INFO L93 Difference]: Finished difference Result 112 states and 117 transitions. [2021-12-15 10:58:38,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-12-15 10:58:38,291 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 102 states have (on average 1.0588235294117647) internal successors, (108), 102 states have internal predecessors, (108), 0 states have call successors, (0), 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 101 [2021-12-15 10:58:38,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:58:38,291 INFO L225 Difference]: With dead ends: 112 [2021-12-15 10:58:38,292 INFO L226 Difference]: Without dead ends: 108 [2021-12-15 10:58:38,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 196 SyntacticMatches, 1 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2021-12-15 10:58:38,294 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:58:38,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:58:38,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-12-15 10:58:38,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2021-12-15 10:58:38,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 1.0093457943925233) internal successors, (108), 107 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:38,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 108 transitions. [2021-12-15 10:58:38,300 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 108 transitions. Word has length 101 [2021-12-15 10:58:38,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:58:38,300 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 108 transitions. [2021-12-15 10:58:38,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 1.0588235294117647) internal successors, (108), 102 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:38,301 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 108 transitions. [2021-12-15 10:58:38,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-15 10:58:38,302 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:58:38,302 INFO L514 BasicCegarLoop]: trace histogram [100, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:58:38,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-15 10:58:38,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 10:58:38,519 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:58:38,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:58:38,519 INFO L85 PathProgramCache]: Analyzing trace with hash 840527819, now seen corresponding path program 7 times [2021-12-15 10:58:38,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:58:38,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991891527] [2021-12-15 10:58:38,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:58:38,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:58:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:58:42,232 INFO L134 CoverageAnalysis]: Checked inductivity of 5050 backedges. 0 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:42,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 10:58:42,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991891527] [2021-12-15 10:58:42,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991891527] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 10:58:42,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462928271] [2021-12-15 10:58:42,233 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-15 10:58:42,233 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 10:58:42,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:58:42,234 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) [2021-12-15 10:58:42,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-15 10:58:42,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:58:42,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 205 conjunts are in the unsatisfiable core [2021-12-15 10:58:42,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:58:42,996 INFO L134 CoverageAnalysis]: Checked inductivity of 5050 backedges. 0 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:42,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 10:58:43,817 INFO L134 CoverageAnalysis]: Checked inductivity of 5050 backedges. 0 proven. 5050 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:43,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462928271] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 10:58:43,817 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 10:58:43,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [104, 104, 104] total 105 [2021-12-15 10:58:43,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239718173] [2021-12-15 10:58:43,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 10:58:43,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2021-12-15 10:58:43,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 10:58:43,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2021-12-15 10:58:43,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=10712, Unknown=0, NotChecked=0, Total=10920 [2021-12-15 10:58:43,823 INFO L87 Difference]: Start difference. First operand 108 states and 108 transitions. Second operand has 105 states, 105 states have (on average 1.0380952380952382) internal successors, (109), 105 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:46,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:58:46,872 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2021-12-15 10:58:46,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2021-12-15 10:58:46,872 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 105 states have (on average 1.0380952380952382) internal successors, (109), 105 states have internal predecessors, (109), 0 states have call successors, (0), 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 107 [2021-12-15 10:58:46,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:58:46,873 INFO L225 Difference]: With dead ends: 113 [2021-12-15 10:58:46,873 INFO L226 Difference]: Without dead ends: 109 [2021-12-15 10:58:46,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 198 SyntacticMatches, 15 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=213, Invalid=10917, Unknown=0, NotChecked=0, Total=11130 [2021-12-15 10:58:46,875 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 10711 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 10711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-15 10:58:46,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 420 Invalid, 10711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10711 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-15 10:58:46,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-12-15 10:58:46,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-12-15 10:58:46,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 108 states have (on average 1.0092592592592593) internal successors, (109), 108 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:46,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 109 transitions. [2021-12-15 10:58:46,883 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 109 transitions. Word has length 107 [2021-12-15 10:58:46,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:58:46,883 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 109 transitions. [2021-12-15 10:58:46,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 1.0380952380952382) internal successors, (109), 105 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:46,883 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2021-12-15 10:58:46,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-15 10:58:46,884 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:58:46,884 INFO L514 BasicCegarLoop]: trace histogram [101, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:58:46,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-15 10:58:47,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 10:58:47,101 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:58:47,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:58:47,102 INFO L85 PathProgramCache]: Analyzing trace with hash 288224019, now seen corresponding path program 8 times [2021-12-15 10:58:47,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:58:47,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057885002] [2021-12-15 10:58:47,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:58:47,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:58:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:58:50,206 INFO L134 CoverageAnalysis]: Checked inductivity of 5151 backedges. 5151 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:58:50,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 10:58:50,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057885002] [2021-12-15 10:58:50,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057885002] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:58:50,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:58:50,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [103] imperfect sequences [] total 103 [2021-12-15 10:58:50,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806264715] [2021-12-15 10:58:50,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:58:50,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2021-12-15 10:58:50,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 10:58:50,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2021-12-15 10:58:50,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2021-12-15 10:58:50,211 INFO L87 Difference]: Start difference. First operand 109 states and 109 transitions. Second operand has 103 states, 103 states have (on average 1.0485436893203883) internal successors, (108), 103 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:50,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:58:50,407 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2021-12-15 10:58:50,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-12-15 10:58:50,408 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 103 states have (on average 1.0485436893203883) internal successors, (108), 103 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2021-12-15 10:58:50,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:58:50,408 INFO L225 Difference]: With dead ends: 109 [2021-12-15 10:58:50,408 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 10:58:50,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2021-12-15 10:58:50,410 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 10:58:50,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 10:58:50,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 10:58:50,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 10:58:50,411 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) [2021-12-15 10:58:50,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 10:58:50,411 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2021-12-15 10:58:50,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:58:50,411 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 10:58:50,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 103 states have (on average 1.0485436893203883) internal successors, (108), 103 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:58:50,412 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 10:58:50,412 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 10:58:50,413 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 10:58:50,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 10:58:50,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 10:58:51,612 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 10:58:51,612 INFO L854 garLoopResultBuilder]: At program point L23-2(lines 23 26) the Hoare annotation is: (or (and (<= 76 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 76) (<= |ULTIMATE.start_main_~i~0#1| 38) (<= 38 |ULTIMATE.start_main_~i~0#1|)) (and (<= 86 |ULTIMATE.start_main_~j~0#1|) (<= 43 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 43) (<= |ULTIMATE.start_main_~j~0#1| 86)) (and (<= 79 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 79) (<= 158 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 158)) (and (<= 64 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 128) (<= |ULTIMATE.start_main_~i~0#1| 64) (<= 128 |ULTIMATE.start_main_~j~0#1|)) (and (<= 2 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 1) (<= |ULTIMATE.start_main_~j~0#1| 2) (<= 1 |ULTIMATE.start_main_~i~0#1|)) (and (<= 32 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 64) (<= |ULTIMATE.start_main_~i~0#1| 32) (<= 64 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 32) (<= 32 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 16) (<= 16 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 6) (<= 12 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 12) (<= 6 |ULTIMATE.start_main_~i~0#1|)) (and (<= 52 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 26) (<= 26 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 52)) (and (<= 114 |ULTIMATE.start_main_~j~0#1|) (<= 57 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 114) (<= |ULTIMATE.start_main_~i~0#1| 57)) (and (<= |ULTIMATE.start_main_~j~0#1| 112) (<= 112 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 56) (<= 56 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 65) (<= |ULTIMATE.start_main_~j~0#1| 130) (<= 65 |ULTIMATE.start_main_~i~0#1|) (<= 130 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 14) (<= |ULTIMATE.start_main_~i~0#1| 7) (<= 7 |ULTIMATE.start_main_~i~0#1|) (<= 14 |ULTIMATE.start_main_~j~0#1|)) (and (<= 56 |ULTIMATE.start_main_~j~0#1|) (<= 28 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 28) (<= |ULTIMATE.start_main_~j~0#1| 56)) (and (<= |ULTIMATE.start_main_~i~0#1| 11) (<= |ULTIMATE.start_main_~j~0#1| 22) (<= 22 |ULTIMATE.start_main_~j~0#1|) (<= 11 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 89) (<= 178 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 178) (<= 89 |ULTIMATE.start_main_~i~0#1|)) (and (<= 20 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 40) (<= 40 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 20)) (and (<= |ULTIMATE.start_main_~j~0#1| 148) (<= 148 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 74) (<= 74 |ULTIMATE.start_main_~i~0#1|)) (and (<= 54 |ULTIMATE.start_main_~j~0#1|) (<= 27 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 54) (<= |ULTIMATE.start_main_~i~0#1| 27)) (and (<= 44 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 44) (<= 88 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 88)) (and (<= 106 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 53) (<= |ULTIMATE.start_main_~j~0#1| 106) (<= 53 |ULTIMATE.start_main_~i~0#1|)) (and (<= 160 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 80) (<= 80 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 160)) (and (<= 36 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 72) (<= |ULTIMATE.start_main_~i~0#1| 36) (<= 72 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 10) (<= 20 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 20) (<= 10 |ULTIMATE.start_main_~i~0#1|)) (and (<= 17 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 17) (<= |ULTIMATE.start_main_~j~0#1| 34) (<= 34 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 58) (<= |ULTIMATE.start_main_~i~0#1| 29) (<= 58 |ULTIMATE.start_main_~j~0#1|) (<= 29 |ULTIMATE.start_main_~i~0#1|)) (and (<= 60 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 60) (<= 120 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 120)) (and (<= |ULTIMATE.start_main_~j~0#1| 104) (<= 52 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 52) (<= 104 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 138) (<= 138 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 69) (<= 69 |ULTIMATE.start_main_~i~0#1|)) (and (<= 12 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 12) (<= |ULTIMATE.start_main_~j~0#1| 24) (<= 24 |ULTIMATE.start_main_~j~0#1|)) (and (<= 62 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 62) (<= 31 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 31)) (and (<= 61 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 61) (<= |ULTIMATE.start_main_~j~0#1| 122) (<= 122 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 42) (<= 21 |ULTIMATE.start_main_~i~0#1|) (<= 42 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 21)) (and (<= |ULTIMATE.start_main_~j~0#1| 68) (<= 34 |ULTIMATE.start_main_~i~0#1|) (<= 68 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 34)) (and (<= |ULTIMATE.start_main_~j~0#1| 132) (<= 66 |ULTIMATE.start_main_~i~0#1|) (<= 132 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 66)) (and (<= |ULTIMATE.start_main_~j~0#1| 96) (<= 96 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 48) (<= 48 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 198) (< |ULTIMATE.start_main_~i~0#1| 100) (<= 198 |ULTIMATE.start_main_~j~0#1|) (<= 99 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 13) (<= 26 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 26) (<= 13 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 168) (<= |ULTIMATE.start_main_~i~0#1| 84) (<= 168 |ULTIMATE.start_main_~j~0#1|) (<= 84 |ULTIMATE.start_main_~i~0#1|)) (and (<= 45 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 45) (<= |ULTIMATE.start_main_~j~0#1| 90) (<= 90 |ULTIMATE.start_main_~j~0#1|)) (and (<= 70 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 140) (<= 140 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 70)) (and (<= |ULTIMATE.start_main_~j~0#1| 0) (<= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 46) (<= |ULTIMATE.start_main_~j~0#1| 92) (<= 92 |ULTIMATE.start_main_~j~0#1|) (<= 46 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 68) (<= 136 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 136) (<= 68 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 8) (<= 8 |ULTIMATE.start_main_~j~0#1|) (<= 4 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 4)) (and (<= 4 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 2) (<= |ULTIMATE.start_main_~j~0#1| 4) (<= 2 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 100) (<= 100 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 50) (<= 50 |ULTIMATE.start_main_~i~0#1|)) (and (<= 55 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 110) (<= 110 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 55)) (and (<= 18 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 9) (<= 9 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 18)) (and (<= 91 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 182) (<= 182 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 91)) (and (<= |ULTIMATE.start_main_~i~0#1| 75) (<= 75 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 150) (<= 150 |ULTIMATE.start_main_~j~0#1|)) (and (<= 22 |ULTIMATE.start_main_~i~0#1|) (<= 44 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 22) (<= |ULTIMATE.start_main_~j~0#1| 44)) (and (<= 19 |ULTIMATE.start_main_~i~0#1|) (<= 38 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 38) (<= |ULTIMATE.start_main_~i~0#1| 19)) (and (<= |ULTIMATE.start_main_~j~0#1| 80) (<= |ULTIMATE.start_main_~i~0#1| 40) (<= 40 |ULTIMATE.start_main_~i~0#1|) (<= 80 |ULTIMATE.start_main_~j~0#1|)) (and (<= 82 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 41) (<= 41 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 82)) (and (<= 82 |ULTIMATE.start_main_~i~0#1|) (<= 164 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 164) (<= |ULTIMATE.start_main_~i~0#1| 82)) (and (<= 24 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 24) (<= |ULTIMATE.start_main_~j~0#1| 48) (<= 48 |ULTIMATE.start_main_~j~0#1|)) (and (<= 92 |ULTIMATE.start_main_~i~0#1|) (<= 184 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 92) (<= |ULTIMATE.start_main_~j~0#1| 184)) (and (<= |ULTIMATE.start_main_~i~0#1| 35) (<= |ULTIMATE.start_main_~j~0#1| 70) (<= 35 |ULTIMATE.start_main_~i~0#1|) (<= 70 |ULTIMATE.start_main_~j~0#1|)) (and (< |ULTIMATE.start_main_~i~0#1| 96) (<= 190 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 190) (<= 95 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 142) (<= |ULTIMATE.start_main_~i~0#1| 71) (<= 71 |ULTIMATE.start_main_~i~0#1|) (<= 142 |ULTIMATE.start_main_~j~0#1|)) (and (<= 63 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 126) (<= |ULTIMATE.start_main_~i~0#1| 63) (<= 126 |ULTIMATE.start_main_~j~0#1|)) (and (<= 72 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 144) (<= 144 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 72)) (and (<= |ULTIMATE.start_main_~j~0#1| 174) (<= 174 |ULTIMATE.start_main_~j~0#1|) (<= 87 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 87)) (and (<= |ULTIMATE.start_main_~j~0#1| 176) (<= |ULTIMATE.start_main_~i~0#1| 88) (<= 176 |ULTIMATE.start_main_~j~0#1|) (<= 88 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 166) (<= |ULTIMATE.start_main_~i~0#1| 83) (<= 83 |ULTIMATE.start_main_~i~0#1|) (<= 166 |ULTIMATE.start_main_~j~0#1|)) (and (<= 93 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 93) (<= 186 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 186)) (and (<= |ULTIMATE.start_main_~j~0#1| 10) (<= 10 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 5) (<= 5 |ULTIMATE.start_main_~i~0#1|)) (and (<= 96 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| 97) (<= 192 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 192)) (and (<= 78 |ULTIMATE.start_main_~i~0#1|) (<= 156 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 78) (<= |ULTIMATE.start_main_~j~0#1| 156)) (and (<= |ULTIMATE.start_main_~j~0#1| 200) (<= 100 |ULTIMATE.start_main_~i~0#1|) (< 199 |ULTIMATE.start_main_~j~0#1|)) (and (<= 77 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 77) (<= |ULTIMATE.start_main_~j~0#1| 154) (<= 154 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 30) (<= 30 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 60) (<= 60 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 180) (<= 90 |ULTIMATE.start_main_~i~0#1|) (<= 180 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 90)) (and (<= |ULTIMATE.start_main_~i~0#1| 62) (<= 62 |ULTIMATE.start_main_~i~0#1|) (<= 124 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 124)) (and (<= |ULTIMATE.start_main_~i~0#1| 51) (<= 102 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 102) (<= 51 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 146) (<= 146 |ULTIMATE.start_main_~j~0#1|) (<= 73 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 73)) (and (<= |ULTIMATE.start_main_~j~0#1| 94) (<= 94 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 47) (<= 47 |ULTIMATE.start_main_~i~0#1|)) (and (<= 74 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 37) (<= 37 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 74)) (and (<= 8 |ULTIMATE.start_main_~i~0#1|) (<= 16 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 8) (<= |ULTIMATE.start_main_~j~0#1| 16)) (and (<= 116 |ULTIMATE.start_main_~j~0#1|) (<= 58 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 58) (<= |ULTIMATE.start_main_~j~0#1| 116)) (and (<= |ULTIMATE.start_main_~j~0#1| 152) (<= |ULTIMATE.start_main_~i~0#1| 76) (<= 76 |ULTIMATE.start_main_~i~0#1|) (<= 152 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 188) (<= 94 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 94) (<= 188 |ULTIMATE.start_main_~j~0#1|)) (and (<= 36 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 36) (<= |ULTIMATE.start_main_~i~0#1| 18) (<= 18 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 85) (<= 170 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 170) (<= 85 |ULTIMATE.start_main_~i~0#1|)) (and (<= 39 |ULTIMATE.start_main_~i~0#1|) (<= 78 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 78) (<= |ULTIMATE.start_main_~i~0#1| 39)) (and (<= |ULTIMATE.start_main_~i~0#1| 59) (<= 118 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 118) (<= 59 |ULTIMATE.start_main_~i~0#1|)) (and (<= 86 |ULTIMATE.start_main_~i~0#1|) (<= 172 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 86) (<= |ULTIMATE.start_main_~j~0#1| 172)) (and (<= 25 |ULTIMATE.start_main_~i~0#1|) (<= 50 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 50) (<= |ULTIMATE.start_main_~i~0#1| 25)) (and (<= |ULTIMATE.start_main_~j~0#1| 194) (< |ULTIMATE.start_main_~i~0#1| 98) (<= 97 |ULTIMATE.start_main_~i~0#1|) (<= 194 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 134) (<= |ULTIMATE.start_main_~i~0#1| 67) (<= 134 |ULTIMATE.start_main_~j~0#1|) (<= 67 |ULTIMATE.start_main_~i~0#1|)) (and (<= 54 |ULTIMATE.start_main_~i~0#1|) (<= 108 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 54) (<= |ULTIMATE.start_main_~j~0#1| 108)) (and (<= |ULTIMATE.start_main_~i~0#1| 49) (<= 49 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 98) (<= 98 |ULTIMATE.start_main_~j~0#1|)) (and (<= 42 |ULTIMATE.start_main_~i~0#1|) (<= 84 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 84) (<= |ULTIMATE.start_main_~i~0#1| 42)) (and (<= |ULTIMATE.start_main_~i~0#1| 33) (<= |ULTIMATE.start_main_~j~0#1| 66) (<= 66 |ULTIMATE.start_main_~j~0#1|) (<= 33 |ULTIMATE.start_main_~i~0#1|)) (and (<= 14 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 28) (<= |ULTIMATE.start_main_~i~0#1| 14) (<= 28 |ULTIMATE.start_main_~j~0#1|)) (and (<= 15 |ULTIMATE.start_main_~i~0#1|) (<= 30 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 15) (<= |ULTIMATE.start_main_~j~0#1| 30)) (and (<= 23 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 23) (<= |ULTIMATE.start_main_~j~0#1| 46) (<= 46 |ULTIMATE.start_main_~j~0#1|)) (and (<= 162 |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~i~0#1| 81) (<= |ULTIMATE.start_main_~j~0#1| 162) (<= 81 |ULTIMATE.start_main_~i~0#1|)) (and (<= |ULTIMATE.start_main_~j~0#1| 196) (<= 98 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| 99) (<= 196 |ULTIMATE.start_main_~j~0#1|)) (and (<= |ULTIMATE.start_main_~i~0#1| 3) (<= 3 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~j~0#1| 6) (<= 6 |ULTIMATE.start_main_~j~0#1|))) [2021-12-15 10:58:51,613 INFO L858 garLoopResultBuilder]: For program point L23-3(lines 23 26) no Hoare annotation was computed. [2021-12-15 10:58:51,613 INFO L858 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-12-15 10:58:51,613 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 10:58:51,613 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 10:58:51,613 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 10:58:51,613 INFO L861 garLoopResultBuilder]: At program point L28(lines 19 29) the Hoare annotation is: true [2021-12-15 10:58:51,613 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2021-12-15 10:58:51,613 INFO L858 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-12-15 10:58:51,613 INFO L858 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2021-12-15 10:58:51,613 INFO L858 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-12-15 10:58:51,615 INFO L732 BasicCegarLoop]: Path program histogram: [8, 1, 1] [2021-12-15 10:58:51,616 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 10:58:51,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:58:51 BoogieIcfgContainer [2021-12-15 10:58:51,652 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 10:58:51,652 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 10:58:51,652 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 10:58:51,653 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 10:58:51,653 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:58:28" (3/4) ... [2021-12-15 10:58:51,656 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 10:58:51,662 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-12-15 10:58:51,662 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-12-15 10:58:51,663 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 10:58:51,663 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 10:58:51,689 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 10:58:51,690 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 10:58:51,690 INFO L158 Benchmark]: Toolchain (without parser) took 23834.86ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 69.0MB in the beginning and 81.4MB in the end (delta: -12.3MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2021-12-15 10:58:51,690 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 107.0MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:58:51,691 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.33ms. Allocated memory is still 107.0MB. Free memory was 68.8MB in the beginning and 83.8MB in the end (delta: -15.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 10:58:51,691 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.30ms. Allocated memory is still 107.0MB. Free memory was 83.4MB in the beginning and 82.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:58:51,691 INFO L158 Benchmark]: Boogie Preprocessor took 10.58ms. Allocated memory is still 107.0MB. Free memory was 82.2MB in the beginning and 81.3MB in the end (delta: 860.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:58:51,691 INFO L158 Benchmark]: RCFGBuilder took 155.95ms. Allocated memory is still 107.0MB. Free memory was 81.3MB in the beginning and 72.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 10:58:51,692 INFO L158 Benchmark]: TraceAbstraction took 23440.09ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 71.7MB in the beginning and 84.5MB in the end (delta: -12.8MB). Peak memory consumption was 85.8MB. Max. memory is 16.1GB. [2021-12-15 10:58:51,692 INFO L158 Benchmark]: Witness Printer took 37.52ms. Allocated memory is still 157.3MB. Free memory was 84.5MB in the beginning and 81.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:58:51,693 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 107.0MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.33ms. Allocated memory is still 107.0MB. Free memory was 68.8MB in the beginning and 83.8MB in the end (delta: -15.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.30ms. Allocated memory is still 107.0MB. Free memory was 83.4MB in the beginning and 82.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 10.58ms. Allocated memory is still 107.0MB. Free memory was 82.2MB in the beginning and 81.3MB in the end (delta: 860.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 155.95ms. Allocated memory is still 107.0MB. Free memory was 81.3MB in the beginning and 72.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 23440.09ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 71.7MB in the beginning and 84.5MB in the end (delta: -12.8MB). Peak memory consumption was 85.8MB. Max. memory is 16.1GB. * Witness Printer took 37.52ms. Allocated memory is still 157.3MB. Free memory was 84.5MB in the beginning and 81.4MB in the end (delta: 3.1MB). 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: 16]: 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, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 23.4s, OverallIterations: 10, TraceHistogramMax: 101, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 589 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 518 mSDsCounter, 116 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11529 IncrementalHoareTripleChecker+Invalid, 11645 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 116 mSolverCounterUnsat, 71 mSDtfsCounter, 11529 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1046 GetRequests, 548 SyntacticMatches, 16 SemanticMatches, 482 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 13.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=109occurred in iteration=9, InterpolantAutomatonStates: 500, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 104 NumberOfFragments, 1312 HoareAnnotationTreeSize, 2 FomulaSimplifications, 264 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 15.9s InterpolantComputationTime, 774 NumberOfCodeBlocks, 774 NumberOfCodeBlocksAsserted, 94 NumberOfCheckSat, 1076 ConstructedInterpolants, 0 QuantifiedInterpolants, 4221 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1644 ConjunctsInSsa, 394 ConjunctsInUnsatCore, 24 InterpolantComputations, 3 PerfectInterpolantSequences, 5151/37896 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: 23]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((76 <= j && j <= 76) && i <= 38) && 38 <= i) || (((86 <= j && 43 <= i) && i <= 43) && j <= 86)) || (((79 <= i && i <= 79) && 158 <= j) && j <= 158)) || (((64 <= i && j <= 128) && i <= 64) && 128 <= j)) || (((2 <= j && i <= 1) && j <= 2) && 1 <= i)) || (((32 <= i && j <= 64) && i <= 32) && 64 <= j)) || (((j <= 32 && 32 <= j) && i <= 16) && 16 <= i)) || (((i <= 6 && 12 <= j) && j <= 12) && 6 <= i)) || (((52 <= j && i <= 26) && 26 <= i) && j <= 52)) || (((114 <= j && 57 <= i) && j <= 114) && i <= 57)) || (((j <= 112 && 112 <= j) && i <= 56) && 56 <= i)) || (((i <= 65 && j <= 130) && 65 <= i) && 130 <= j)) || (((j <= 14 && i <= 7) && 7 <= i) && 14 <= j)) || (((56 <= j && 28 <= i) && i <= 28) && j <= 56)) || (((i <= 11 && j <= 22) && 22 <= j) && 11 <= i)) || (((i <= 89 && 178 <= j) && j <= 178) && 89 <= i)) || (((20 <= i && j <= 40) && 40 <= j) && i <= 20)) || (((j <= 148 && 148 <= j) && i <= 74) && 74 <= i)) || (((54 <= j && 27 <= i) && j <= 54) && i <= 27)) || (((44 <= i && i <= 44) && 88 <= j) && j <= 88)) || (((106 <= j && i <= 53) && j <= 106) && 53 <= i)) || (((160 <= j && i <= 80) && 80 <= i) && j <= 160)) || (((36 <= i && j <= 72) && i <= 36) && 72 <= j)) || (((i <= 10 && 20 <= j) && j <= 20) && 10 <= i)) || (((17 <= i && i <= 17) && j <= 34) && 34 <= j)) || (((j <= 58 && i <= 29) && 58 <= j) && 29 <= i)) || (((60 <= i && i <= 60) && 120 <= j) && j <= 120)) || (((j <= 104 && 52 <= i) && i <= 52) && 104 <= j)) || (((j <= 138 && 138 <= j) && i <= 69) && 69 <= i)) || (((12 <= i && i <= 12) && j <= 24) && 24 <= j)) || (((62 <= j && j <= 62) && 31 <= i) && i <= 31)) || (((61 <= i && i <= 61) && j <= 122) && 122 <= j)) || (((j <= 42 && 21 <= i) && 42 <= j) && i <= 21)) || (((j <= 68 && 34 <= i) && 68 <= j) && i <= 34)) || (((j <= 132 && 66 <= i) && 132 <= j) && i <= 66)) || (((j <= 96 && 96 <= j) && i <= 48) && 48 <= i)) || (((j <= 198 && i < 100) && 198 <= j) && 99 <= i)) || (((i <= 13 && 26 <= j) && j <= 26) && 13 <= i)) || (((j <= 168 && i <= 84) && 168 <= j) && 84 <= i)) || (((45 <= i && i <= 45) && j <= 90) && 90 <= j)) || (((70 <= i && j <= 140) && 140 <= j) && i <= 70)) || (((j <= 0 && i <= 0) && 0 <= i) && 0 <= j)) || (((i <= 46 && j <= 92) && 92 <= j) && 46 <= i)) || (((i <= 68 && 136 <= j) && j <= 136) && 68 <= i)) || (((j <= 8 && 8 <= j) && 4 <= i) && i <= 4)) || (((4 <= j && i <= 2) && j <= 4) && 2 <= i)) || (((j <= 100 && 100 <= j) && i <= 50) && 50 <= i)) || (((55 <= i && j <= 110) && 110 <= j) && i <= 55)) || (((18 <= j && i <= 9) && 9 <= i) && j <= 18)) || (((91 <= i && j <= 182) && 182 <= j) && i <= 91)) || (((i <= 75 && 75 <= i) && j <= 150) && 150 <= j)) || (((22 <= i && 44 <= j) && i <= 22) && j <= 44)) || (((19 <= i && 38 <= j) && j <= 38) && i <= 19)) || (((j <= 80 && i <= 40) && 40 <= i) && 80 <= j)) || (((82 <= j && i <= 41) && 41 <= i) && j <= 82)) || (((82 <= i && 164 <= j) && j <= 164) && i <= 82)) || (((24 <= i && i <= 24) && j <= 48) && 48 <= j)) || (((92 <= i && 184 <= j) && i <= 92) && j <= 184)) || (((i <= 35 && j <= 70) && 35 <= i) && 70 <= j)) || (((i < 96 && 190 <= j) && j <= 190) && 95 <= i)) || (((j <= 142 && i <= 71) && 71 <= i) && 142 <= j)) || (((63 <= i && j <= 126) && i <= 63) && 126 <= j)) || (((72 <= i && j <= 144) && 144 <= j) && i <= 72)) || (((j <= 174 && 174 <= j) && 87 <= i) && i <= 87)) || (((j <= 176 && i <= 88) && 176 <= j) && 88 <= i)) || (((j <= 166 && i <= 83) && 83 <= i) && 166 <= j)) || (((93 <= i && i <= 93) && 186 <= j) && j <= 186)) || (((j <= 10 && 10 <= j) && i <= 5) && 5 <= i)) || (((96 <= i && i < 97) && 192 <= j) && j <= 192)) || (((78 <= i && 156 <= j) && i <= 78) && j <= 156)) || ((j <= 200 && 100 <= i) && 199 < j)) || (((77 <= i && i <= 77) && j <= 154) && 154 <= j)) || (((i <= 30 && 30 <= i) && j <= 60) && 60 <= j)) || (((j <= 180 && 90 <= i) && 180 <= j) && i <= 90)) || (((i <= 62 && 62 <= i) && 124 <= j) && j <= 124)) || (((i <= 51 && 102 <= j) && j <= 102) && 51 <= i)) || (((j <= 146 && 146 <= j) && 73 <= i) && i <= 73)) || (((j <= 94 && 94 <= j) && i <= 47) && 47 <= i)) || (((74 <= j && i <= 37) && 37 <= i) && j <= 74)) || (((8 <= i && 16 <= j) && i <= 8) && j <= 16)) || (((116 <= j && 58 <= i) && i <= 58) && j <= 116)) || (((j <= 152 && i <= 76) && 76 <= i) && 152 <= j)) || (((j <= 188 && 94 <= i) && i <= 94) && 188 <= j)) || (((36 <= j && j <= 36) && i <= 18) && 18 <= i)) || (((i <= 85 && 170 <= j) && j <= 170) && 85 <= i)) || (((39 <= i && 78 <= j) && j <= 78) && i <= 39)) || (((i <= 59 && 118 <= j) && j <= 118) && 59 <= i)) || (((86 <= i && 172 <= j) && i <= 86) && j <= 172)) || (((25 <= i && 50 <= j) && j <= 50) && i <= 25)) || (((j <= 194 && i < 98) && 97 <= i) && 194 <= j)) || (((j <= 134 && i <= 67) && 134 <= j) && 67 <= i)) || (((54 <= i && 108 <= j) && i <= 54) && j <= 108)) || (((i <= 49 && 49 <= i) && j <= 98) && 98 <= j)) || (((42 <= i && 84 <= j) && j <= 84) && i <= 42)) || (((i <= 33 && j <= 66) && 66 <= j) && 33 <= i)) || (((14 <= i && j <= 28) && i <= 14) && 28 <= j)) || (((15 <= i && 30 <= j) && i <= 15) && j <= 30)) || (((23 <= i && i <= 23) && j <= 46) && 46 <= j)) || (((162 <= j && i <= 81) && j <= 162) && 81 <= i)) || (((j <= 196 && 98 <= i) && i < 99) && 196 <= j)) || (((i <= 3 && 3 <= i) && j <= 6) && 6 <= j) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-15 10:58:51,731 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