./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/gr2006.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e8d55036 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-lit/gr2006.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3ef045eb54c58e8ecfe4972142a43378e1f3b08091dc3d5b7e399cf5703f1724 --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 20:05:23,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 20:05:23,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 20:05:23,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 20:05:23,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 20:05:23,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 20:05:23,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 20:05:23,827 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 20:05:23,829 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 20:05:23,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 20:05:23,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 20:05:23,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 20:05:23,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 20:05:23,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 20:05:23,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 20:05:23,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 20:05:23,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 20:05:23,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 20:05:23,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 20:05:23,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 20:05:23,839 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 20:05:23,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 20:05:23,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 20:05:23,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 20:05:23,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 20:05:23,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 20:05:23,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 20:05:23,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 20:05:23,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 20:05:23,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 20:05:23,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 20:05:23,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 20:05:23,855 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 20:05:23,856 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 20:05:23,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 20:05:23,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 20:05:23,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 20:05:23,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 20:05:23,858 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 20:05:23,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 20:05:23,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 20:05:23,860 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 20:05:23,881 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 20:05:23,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 20:05:23,881 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 20:05:23,881 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 20:05:23,882 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 20:05:23,882 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 20:05:23,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 20:05:23,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 20:05:23,883 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 20:05:23,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 20:05:23,883 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 20:05:23,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 20:05:23,883 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 20:05:23,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 20:05:23,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 20:05:23,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 20:05:23,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 20:05:23,884 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 20:05:23,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 20:05:23,885 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 20:05:23,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 20:05:23,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 20:05:23,885 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 20:05:23,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 20:05:23,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 20:05:23,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 20:05:23,886 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 20:05:23,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 20:05:23,886 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 20:05:23,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 20:05:23,887 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 20:05:23,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 20:05:23,887 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 20:05:23,887 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 20:05:23,887 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 20:05:23,887 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ef045eb54c58e8ecfe4972142a43378e1f3b08091dc3d5b7e399cf5703f1724 [2023-02-15 20:05:24,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 20:05:24,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 20:05:24,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 20:05:24,114 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 20:05:24,114 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 20:05:24,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/gr2006.i [2023-02-15 20:05:25,030 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 20:05:25,199 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 20:05:25,199 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gr2006.i [2023-02-15 20:05:25,203 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e325f33ad/9864141b2ed541698ad5b0347b195f18/FLAG1dea3072d [2023-02-15 20:05:25,216 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e325f33ad/9864141b2ed541698ad5b0347b195f18 [2023-02-15 20:05:25,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 20:05:25,219 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 20:05:25,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 20:05:25,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 20:05:25,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 20:05:25,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 08:05:25" (1/1) ... [2023-02-15 20:05:25,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e79657e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:05:25, skipping insertion in model container [2023-02-15 20:05:25,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 08:05:25" (1/1) ... [2023-02-15 20:05:25,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 20:05:25,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 20:05:25,361 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gr2006.i[895,908] [2023-02-15 20:05:25,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 20:05:25,378 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 20:05:25,387 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gr2006.i[895,908] [2023-02-15 20:05:25,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 20:05:25,399 INFO L208 MainTranslator]: Completed translation [2023-02-15 20:05:25,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:05:25 WrapperNode [2023-02-15 20:05:25,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 20:05:25,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 20:05:25,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 20:05:25,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 20:05:25,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:05:25" (1/1) ... [2023-02-15 20:05:25,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:05:25" (1/1) ... [2023-02-15 20:05:25,421 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 38 [2023-02-15 20:05:25,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 20:05:25,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 20:05:25,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 20:05:25,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 20:05:25,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:05:25" (1/1) ... [2023-02-15 20:05:25,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:05:25" (1/1) ... [2023-02-15 20:05:25,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:05:25" (1/1) ... [2023-02-15 20:05:25,430 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:05:25" (1/1) ... [2023-02-15 20:05:25,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:05:25" (1/1) ... [2023-02-15 20:05:25,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:05:25" (1/1) ... [2023-02-15 20:05:25,438 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:05:25" (1/1) ... [2023-02-15 20:05:25,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:05:25" (1/1) ... [2023-02-15 20:05:25,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 20:05:25,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 20:05:25,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 20:05:25,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 20:05:25,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:05:25" (1/1) ... [2023-02-15 20:05:25,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 20:05:25,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 20:05:25,469 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 20:05:25,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 20:05:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 20:05:25,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 20:05:25,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 20:05:25,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 20:05:25,535 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 20:05:25,536 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 20:05:25,646 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 20:05:25,650 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 20:05:25,651 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 20:05:25,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 08:05:25 BoogieIcfgContainer [2023-02-15 20:05:25,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 20:05:25,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 20:05:25,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 20:05:25,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 20:05:25,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 08:05:25" (1/3) ... [2023-02-15 20:05:25,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1faa68e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 08:05:25, skipping insertion in model container [2023-02-15 20:05:25,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 08:05:25" (2/3) ... [2023-02-15 20:05:25,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1faa68e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 08:05:25, skipping insertion in model container [2023-02-15 20:05:25,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 08:05:25" (3/3) ... [2023-02-15 20:05:25,659 INFO L112 eAbstractionObserver]: Analyzing ICFG gr2006.i [2023-02-15 20:05:25,671 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 20:05:25,672 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 20:05:25,708 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 20:05:25,713 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1bcb3627, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 20:05:25,713 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 20:05:25,716 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:25,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 20:05:25,721 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:05:25,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 20:05:25,722 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:05:25,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:05:25,726 INFO L85 PathProgramCache]: Analyzing trace with hash 890091623, now seen corresponding path program 1 times [2023-02-15 20:05:25,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:05:25,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371620895] [2023-02-15 20:05:25,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:05:25,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:05:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:05:25,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:05:25,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:05:25,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371620895] [2023-02-15 20:05:25,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371620895] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 20:05:25,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 20:05:25,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 20:05:25,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197900884] [2023-02-15 20:05:25,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 20:05:25,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 20:05:25,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:05:25,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 20:05:25,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 20:05:25,859 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 12 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:25,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:05:25,870 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2023-02-15 20:05:25,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 20:05:25,872 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-15 20:05:25,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:05:25,876 INFO L225 Difference]: With dead ends: 21 [2023-02-15 20:05:25,876 INFO L226 Difference]: Without dead ends: 9 [2023-02-15 20:05:25,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 20:05:25,881 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 20:05:25,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 20:05:25,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-02-15 20:05:25,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-02-15 20:05:25,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:25,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2023-02-15 20:05:25,901 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2023-02-15 20:05:25,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:05:25,901 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-02-15 20:05:25,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:25,902 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-02-15 20:05:25,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 20:05:25,902 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:05:25,902 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 20:05:25,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 20:05:25,903 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:05:25,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:05:25,903 INFO L85 PathProgramCache]: Analyzing trace with hash 297871632, now seen corresponding path program 1 times [2023-02-15 20:05:25,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:05:25,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404017021] [2023-02-15 20:05:25,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:05:25,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:05:25,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:05:25,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:05:25,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:05:25,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404017021] [2023-02-15 20:05:25,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404017021] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 20:05:25,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 20:05:25,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 20:05:25,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976961226] [2023-02-15 20:05:25,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 20:05:25,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 20:05:25,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:05:25,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 20:05:25,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 20:05:25,965 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:25,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:05:25,989 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2023-02-15 20:05:25,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 20:05:25,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 20:05:25,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:05:25,990 INFO L225 Difference]: With dead ends: 23 [2023-02-15 20:05:25,990 INFO L226 Difference]: Without dead ends: 16 [2023-02-15 20:05:25,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 20:05:25,991 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 20:05:25,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 12 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 20:05:25,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-02-15 20:05:25,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 11. [2023-02-15 20:05:25,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:25,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2023-02-15 20:05:25,994 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2023-02-15 20:05:25,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:05:25,994 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-02-15 20:05:25,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:25,994 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-02-15 20:05:25,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 20:05:25,995 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:05:25,995 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 20:05:25,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 20:05:25,995 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:05:25,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:05:25,995 INFO L85 PathProgramCache]: Analyzing trace with hash 296024590, now seen corresponding path program 1 times [2023-02-15 20:05:25,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:05:26,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467941567] [2023-02-15 20:05:26,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:05:26,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:05:26,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:05:26,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:05:26,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:05:26,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467941567] [2023-02-15 20:05:26,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467941567] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 20:05:26,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 20:05:26,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 20:05:26,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796143030] [2023-02-15 20:05:26,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 20:05:26,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 20:05:26,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:05:26,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 20:05:26,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 20:05:26,075 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:26,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:05:26,090 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2023-02-15 20:05:26,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 20:05:26,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 20:05:26,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:05:26,091 INFO L225 Difference]: With dead ends: 18 [2023-02-15 20:05:26,091 INFO L226 Difference]: Without dead ends: 14 [2023-02-15 20:05:26,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 20:05:26,092 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 20:05:26,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 18 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 20:05:26,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-02-15 20:05:26,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-02-15 20:05:26,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:26,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2023-02-15 20:05:26,097 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 8 [2023-02-15 20:05:26,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:05:26,097 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2023-02-15 20:05:26,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:26,097 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-02-15 20:05:26,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 20:05:26,098 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:05:26,098 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 20:05:26,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 20:05:26,098 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:05:26,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:05:26,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1661002755, now seen corresponding path program 1 times [2023-02-15 20:05:26,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:05:26,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009696286] [2023-02-15 20:05:26,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:05:26,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:05:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:05:26,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:05:26,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:05:26,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009696286] [2023-02-15 20:05:26,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009696286] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 20:05:26,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [554732956] [2023-02-15 20:05:26,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:05:26,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:05:26,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 20:05:26,142 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 20:05:26,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 20:05:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:05:26,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 20:05:26,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 20:05:26,228 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:05:26,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 20:05:26,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:05:26,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [554732956] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 20:05:26,263 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 20:05:26,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-02-15 20:05:26,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152158934] [2023-02-15 20:05:26,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 20:05:26,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 20:05:26,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:05:26,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 20:05:26,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-02-15 20:05:26,267 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:26,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:05:26,318 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2023-02-15 20:05:26,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 20:05:26,319 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-15 20:05:26,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:05:26,319 INFO L225 Difference]: With dead ends: 35 [2023-02-15 20:05:26,319 INFO L226 Difference]: Without dead ends: 28 [2023-02-15 20:05:26,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-02-15 20:05:26,320 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 20:05:26,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 41 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 20:05:26,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-02-15 20:05:26,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 23. [2023-02-15 20:05:26,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:26,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2023-02-15 20:05:26,324 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 11 [2023-02-15 20:05:26,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:05:26,324 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2023-02-15 20:05:26,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:26,324 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2023-02-15 20:05:26,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-15 20:05:26,324 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:05:26,325 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 20:05:26,332 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 20:05:26,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:05:26,529 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:05:26,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:05:26,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1073415472, now seen corresponding path program 2 times [2023-02-15 20:05:26,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:05:26,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184713270] [2023-02-15 20:05:26,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:05:26,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:05:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:05:26,649 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:05:26,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:05:26,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184713270] [2023-02-15 20:05:26,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184713270] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 20:05:26,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2109848704] [2023-02-15 20:05:26,650 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 20:05:26,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:05:26,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 20:05:26,651 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 20:05:26,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 20:05:26,689 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 20:05:26,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 20:05:26,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 20:05:26,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 20:05:26,743 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 20:05:26,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 20:05:26,800 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 28 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 20:05:26,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2109848704] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 20:05:26,800 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 20:05:26,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-02-15 20:05:26,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969068513] [2023-02-15 20:05:26,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 20:05:26,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-15 20:05:26,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:05:26,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-15 20:05:26,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2023-02-15 20:05:26,802 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 15 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:26,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:05:26,886 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2023-02-15 20:05:26,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-15 20:05:26,886 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-02-15 20:05:26,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:05:26,887 INFO L225 Difference]: With dead ends: 47 [2023-02-15 20:05:26,887 INFO L226 Difference]: Without dead ends: 40 [2023-02-15 20:05:26,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=176, Invalid=376, Unknown=0, NotChecked=0, Total=552 [2023-02-15 20:05:26,889 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 5 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 20:05:26,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 47 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 20:05:26,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-15 20:05:26,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2023-02-15 20:05:26,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 35 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:26,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2023-02-15 20:05:26,898 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 20 [2023-02-15 20:05:26,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:05:26,898 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2023-02-15 20:05:26,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:26,898 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2023-02-15 20:05:26,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-15 20:05:26,899 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:05:26,899 INFO L195 NwaCegarLoop]: trace histogram [10, 9, 5, 5, 1, 1, 1, 1, 1, 1] [2023-02-15 20:05:26,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 20:05:27,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:05:27,106 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:05:27,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:05:27,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1219917565, now seen corresponding path program 3 times [2023-02-15 20:05:27,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:05:27,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008586327] [2023-02-15 20:05:27,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:05:27,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:05:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:05:27,244 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 73 proven. 40 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-15 20:05:27,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:05:27,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008586327] [2023-02-15 20:05:27,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008586327] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 20:05:27,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519377415] [2023-02-15 20:05:27,246 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 20:05:27,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:05:27,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 20:05:27,248 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 20:05:27,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 20:05:27,286 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2023-02-15 20:05:27,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 20:05:27,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-15 20:05:27,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 20:05:27,446 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 9 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:05:27,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 20:05:27,588 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 9 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:05:27,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519377415] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 20:05:27,588 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 20:05:27,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 12] total 23 [2023-02-15 20:05:27,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224335694] [2023-02-15 20:05:27,589 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 20:05:27,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-02-15 20:05:27,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:05:27,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-02-15 20:05:27,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2023-02-15 20:05:27,590 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 23 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:27,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:05:27,649 INFO L93 Difference]: Finished difference Result 104 states and 129 transitions. [2023-02-15 20:05:27,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-15 20:05:27,649 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 23 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2023-02-15 20:05:27,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:05:27,650 INFO L225 Difference]: With dead ends: 104 [2023-02-15 20:05:27,650 INFO L226 Difference]: Without dead ends: 84 [2023-02-15 20:05:27,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2023-02-15 20:05:27,651 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 17 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 20:05:27,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 49 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 20:05:27,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-02-15 20:05:27,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 81. [2023-02-15 20:05:27,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.075) internal successors, (86), 80 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:27,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 86 transitions. [2023-02-15 20:05:27,658 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 86 transitions. Word has length 35 [2023-02-15 20:05:27,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:05:27,658 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 86 transitions. [2023-02-15 20:05:27,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 23 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:27,658 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 86 transitions. [2023-02-15 20:05:27,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-02-15 20:05:27,659 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:05:27,660 INFO L195 NwaCegarLoop]: trace histogram [25, 24, 20, 5, 1, 1, 1, 1, 1, 1] [2023-02-15 20:05:27,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-15 20:05:27,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:05:27,866 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:05:27,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:05:27,866 INFO L85 PathProgramCache]: Analyzing trace with hash 399884816, now seen corresponding path program 4 times [2023-02-15 20:05:27,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:05:27,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30601795] [2023-02-15 20:05:27,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:05:27,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:05:27,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:05:28,252 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 268 proven. 610 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-15 20:05:28,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:05:28,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30601795] [2023-02-15 20:05:28,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30601795] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 20:05:28,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524115402] [2023-02-15 20:05:28,253 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 20:05:28,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:05:28,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 20:05:28,254 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 20:05:28,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 20:05:28,300 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 20:05:28,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 20:05:28,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-15 20:05:28,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 20:05:28,390 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 268 proven. 610 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-15 20:05:28,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 20:05:28,884 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 268 proven. 610 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-15 20:05:28,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524115402] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 20:05:28,884 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 20:05:28,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2023-02-15 20:05:28,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090511797] [2023-02-15 20:05:28,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 20:05:28,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-02-15 20:05:28,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:05:28,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-02-15 20:05:28,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2023-02-15 20:05:28,887 INFO L87 Difference]: Start difference. First operand 81 states and 86 transitions. Second operand has 45 states, 45 states have (on average 3.066666666666667) internal successors, (138), 45 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:29,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:05:29,010 INFO L93 Difference]: Finished difference Result 170 states and 202 transitions. [2023-02-15 20:05:29,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-02-15 20:05:29,011 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 3.066666666666667) internal successors, (138), 45 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2023-02-15 20:05:29,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:05:29,014 INFO L225 Difference]: With dead ends: 170 [2023-02-15 20:05:29,014 INFO L226 Difference]: Without dead ends: 150 [2023-02-15 20:05:29,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2023-02-15 20:05:29,019 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 20:05:29,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 78 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 20:05:29,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2023-02-15 20:05:29,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 147. [2023-02-15 20:05:29,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 1.0410958904109588) internal successors, (152), 146 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:29,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 152 transitions. [2023-02-15 20:05:29,037 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 152 transitions. Word has length 80 [2023-02-15 20:05:29,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:05:29,038 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 152 transitions. [2023-02-15 20:05:29,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 3.066666666666667) internal successors, (138), 45 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:29,038 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 152 transitions. [2023-02-15 20:05:29,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-02-15 20:05:29,040 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:05:29,040 INFO L195 NwaCegarLoop]: trace histogram [47, 46, 42, 5, 1, 1, 1, 1, 1, 1] [2023-02-15 20:05:29,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 20:05:29,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:05:29,245 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:05:29,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:05:29,245 INFO L85 PathProgramCache]: Analyzing trace with hash -344528976, now seen corresponding path program 5 times [2023-02-15 20:05:29,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:05:29,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826846672] [2023-02-15 20:05:29,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:05:29,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:05:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:05:30,270 INFO L134 CoverageAnalysis]: Checked inductivity of 3243 backedges. 554 proven. 2667 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-15 20:05:30,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:05:30,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826846672] [2023-02-15 20:05:30,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826846672] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 20:05:30,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851966162] [2023-02-15 20:05:30,270 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 20:05:30,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:05:30,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 20:05:30,273 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 20:05:30,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 20:05:30,357 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-15 20:05:30,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 20:05:30,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 44 conjunts are in the unsatisfiable core [2023-02-15 20:05:30,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 20:05:30,515 INFO L134 CoverageAnalysis]: Checked inductivity of 3243 backedges. 554 proven. 2667 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-15 20:05:30,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 20:05:31,452 INFO L134 CoverageAnalysis]: Checked inductivity of 3243 backedges. 554 proven. 2667 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-15 20:05:31,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851966162] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 20:05:31,452 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 20:05:31,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45, 45] total 53 [2023-02-15 20:05:31,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559590263] [2023-02-15 20:05:31,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 20:05:31,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2023-02-15 20:05:31,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:05:31,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2023-02-15 20:05:31,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2023-02-15 20:05:31,455 INFO L87 Difference]: Start difference. First operand 147 states and 152 transitions. Second operand has 53 states, 53 states have (on average 3.0943396226415096) internal successors, (164), 53 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:31,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:05:31,562 INFO L93 Difference]: Finished difference Result 194 states and 212 transitions. [2023-02-15 20:05:31,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-02-15 20:05:31,562 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 3.0943396226415096) internal successors, (164), 53 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2023-02-15 20:05:31,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:05:31,566 INFO L225 Difference]: With dead ends: 194 [2023-02-15 20:05:31,566 INFO L226 Difference]: Without dead ends: 174 [2023-02-15 20:05:31,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 248 SyntacticMatches, 36 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1050 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2023-02-15 20:05:31,567 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 20:05:31,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 79 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 20:05:31,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2023-02-15 20:05:31,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 171. [2023-02-15 20:05:31,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.035294117647059) internal successors, (176), 170 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:31,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 176 transitions. [2023-02-15 20:05:31,592 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 176 transitions. Word has length 146 [2023-02-15 20:05:31,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:05:31,597 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 176 transitions. [2023-02-15 20:05:31,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 3.0943396226415096) internal successors, (164), 53 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:31,597 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 176 transitions. [2023-02-15 20:05:31,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-02-15 20:05:31,598 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:05:31,598 INFO L195 NwaCegarLoop]: trace histogram [55, 54, 50, 5, 1, 1, 1, 1, 1, 1] [2023-02-15 20:05:31,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 20:05:31,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:05:31,801 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:05:31,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:05:31,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1661700912, now seen corresponding path program 6 times [2023-02-15 20:05:31,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:05:31,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725673951] [2023-02-15 20:05:31,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:05:31,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:05:31,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:05:31,948 INFO L134 CoverageAnalysis]: Checked inductivity of 4455 backedges. 1416 proven. 57 refuted. 0 times theorem prover too weak. 2982 trivial. 0 not checked. [2023-02-15 20:05:31,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:05:31,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725673951] [2023-02-15 20:05:31,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725673951] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 20:05:31,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372667479] [2023-02-15 20:05:31,948 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 20:05:31,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:05:31,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 20:05:31,950 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 20:05:31,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 20:05:32,013 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 29 check-sat command(s) [2023-02-15 20:05:32,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 20:05:32,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 20:05:32,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 20:05:32,045 INFO L134 CoverageAnalysis]: Checked inductivity of 4455 backedges. 1416 proven. 57 refuted. 0 times theorem prover too weak. 2982 trivial. 0 not checked. [2023-02-15 20:05:32,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 20:05:32,098 INFO L134 CoverageAnalysis]: Checked inductivity of 4455 backedges. 1416 proven. 57 refuted. 0 times theorem prover too weak. 2982 trivial. 0 not checked. [2023-02-15 20:05:32,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372667479] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 20:05:32,098 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 20:05:32,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 8 [2023-02-15 20:05:32,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061260869] [2023-02-15 20:05:32,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 20:05:32,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 20:05:32,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:05:32,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 20:05:32,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-02-15 20:05:32,100 INFO L87 Difference]: Start difference. First operand 171 states and 176 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:32,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:05:32,123 INFO L93 Difference]: Finished difference Result 191 states and 201 transitions. [2023-02-15 20:05:32,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 20:05:32,123 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 170 [2023-02-15 20:05:32,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:05:32,125 INFO L225 Difference]: With dead ends: 191 [2023-02-15 20:05:32,125 INFO L226 Difference]: Without dead ends: 187 [2023-02-15 20:05:32,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 333 SyntacticMatches, 12 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-02-15 20:05:32,130 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 20:05:32,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 20:05:32,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-02-15 20:05:32,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 174. [2023-02-15 20:05:32,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 1.0404624277456647) internal successors, (180), 173 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:32,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 180 transitions. [2023-02-15 20:05:32,139 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 180 transitions. Word has length 170 [2023-02-15 20:05:32,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:05:32,140 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 180 transitions. [2023-02-15 20:05:32,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:32,141 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 180 transitions. [2023-02-15 20:05:32,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-02-15 20:05:32,146 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:05:32,146 INFO L195 NwaCegarLoop]: trace histogram [56, 55, 50, 6, 1, 1, 1, 1, 1, 1] [2023-02-15 20:05:32,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 20:05:32,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:05:32,354 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:05:32,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:05:32,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1272078235, now seen corresponding path program 7 times [2023-02-15 20:05:32,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:05:32,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537340725] [2023-02-15 20:05:32,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:05:32,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:05:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:05:32,517 INFO L134 CoverageAnalysis]: Checked inductivity of 4620 backedges. 1681 proven. 86 refuted. 0 times theorem prover too weak. 2853 trivial. 0 not checked. [2023-02-15 20:05:32,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:05:32,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537340725] [2023-02-15 20:05:32,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537340725] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 20:05:32,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13971848] [2023-02-15 20:05:32,517 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-15 20:05:32,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:05:32,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 20:05:32,518 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 20:05:32,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 20:05:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:05:32,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 58 conjunts are in the unsatisfiable core [2023-02-15 20:05:32,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 20:05:33,544 INFO L134 CoverageAnalysis]: Checked inductivity of 4620 backedges. 4518 proven. 86 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-15 20:05:33,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 20:05:34,422 INFO L134 CoverageAnalysis]: Checked inductivity of 4620 backedges. 4518 proven. 86 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-02-15 20:05:34,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13971848] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 20:05:34,422 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 20:05:34,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 53, 53] total 97 [2023-02-15 20:05:34,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494306729] [2023-02-15 20:05:34,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 20:05:34,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2023-02-15 20:05:34,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:05:34,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2023-02-15 20:05:34,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2023-02-15 20:05:34,426 INFO L87 Difference]: Start difference. First operand 174 states and 180 transitions. Second operand has 97 states, 97 states have (on average 3.1752577319587627) internal successors, (308), 97 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:34,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:05:34,814 INFO L93 Difference]: Finished difference Result 1033 states and 1353 transitions. [2023-02-15 20:05:34,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-02-15 20:05:34,821 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 3.1752577319587627) internal successors, (308), 97 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2023-02-15 20:05:34,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:05:34,826 INFO L225 Difference]: With dead ends: 1033 [2023-02-15 20:05:34,826 INFO L226 Difference]: Without dead ends: 1029 [2023-02-15 20:05:34,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 251 SyntacticMatches, 13 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5014 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2023-02-15 20:05:34,828 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 20 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 20:05:34,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 261 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 20:05:34,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2023-02-15 20:05:34,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 309. [2023-02-15 20:05:34,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 308 states have (on average 1.1688311688311688) internal successors, (360), 308 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:34,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 360 transitions. [2023-02-15 20:05:34,841 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 360 transitions. Word has length 173 [2023-02-15 20:05:34,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:05:34,841 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 360 transitions. [2023-02-15 20:05:34,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 3.1752577319587627) internal successors, (308), 97 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:34,842 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 360 transitions. [2023-02-15 20:05:34,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2023-02-15 20:05:34,844 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:05:34,844 INFO L195 NwaCegarLoop]: trace histogram [101, 100, 51, 50, 1, 1, 1, 1, 1, 1] [2023-02-15 20:05:34,849 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-02-15 20:05:35,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:05:35,050 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:05:35,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:05:35,051 INFO L85 PathProgramCache]: Analyzing trace with hash -338193904, now seen corresponding path program 8 times [2023-02-15 20:05:35,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:05:35,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593417360] [2023-02-15 20:05:35,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:05:35,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:05:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:05:39,522 INFO L134 CoverageAnalysis]: Checked inductivity of 15150 backedges. 0 proven. 15150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:05:39,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:05:39,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593417360] [2023-02-15 20:05:39,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593417360] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 20:05:39,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957106465] [2023-02-15 20:05:39,523 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 20:05:39,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:05:39,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 20:05:39,524 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 20:05:39,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 20:05:39,667 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 20:05:39,667 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 20:05:39,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 208 conjunts are in the unsatisfiable core [2023-02-15 20:05:39,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 20:05:42,646 INFO L134 CoverageAnalysis]: Checked inductivity of 15150 backedges. 0 proven. 15150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:05:42,646 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 20:05:43,338 INFO L134 CoverageAnalysis]: Checked inductivity of 15150 backedges. 0 proven. 15150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 20:05:43,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957106465] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 20:05:43,339 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 20:05:43,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [105, 104, 104] total 155 [2023-02-15 20:05:43,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258228378] [2023-02-15 20:05:43,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 20:05:43,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 155 states [2023-02-15 20:05:43,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:05:43,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2023-02-15 20:05:43,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2858, Invalid=21012, Unknown=0, NotChecked=0, Total=23870 [2023-02-15 20:05:43,348 INFO L87 Difference]: Start difference. First operand 309 states and 360 transitions. Second operand has 155 states, 155 states have (on average 2.967741935483871) internal successors, (460), 155 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:48,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:05:48,405 INFO L93 Difference]: Finished difference Result 4542 states and 5921 transitions. [2023-02-15 20:05:48,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2023-02-15 20:05:48,406 INFO L78 Accepts]: Start accepts. Automaton has has 155 states, 155 states have (on average 2.967741935483871) internal successors, (460), 155 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 308 [2023-02-15 20:05:48,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:05:48,421 INFO L225 Difference]: With dead ends: 4542 [2023-02-15 20:05:48,422 INFO L226 Difference]: Without dead ends: 4382 [2023-02-15 20:05:48,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 720 GetRequests, 556 SyntacticMatches, 10 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8651 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=2863, Invalid=21317, Unknown=0, NotChecked=0, Total=24180 [2023-02-15 20:05:48,427 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 197 mSDsluCounter, 15992 mSDsCounter, 0 mSdLazyCounter, 17568 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 16245 SdHoareTripleChecker+Invalid, 17621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 17568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-02-15 20:05:48,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 16245 Invalid, 17621 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [53 Valid, 17568 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-02-15 20:05:48,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4382 states. [2023-02-15 20:05:48,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4382 to 4186. [2023-02-15 20:05:48,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4186 states, 4185 states have (on average 1.0241338112305853) internal successors, (4286), 4185 states have internal predecessors, (4286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:48,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4186 states to 4186 states and 4286 transitions. [2023-02-15 20:05:48,618 INFO L78 Accepts]: Start accepts. Automaton has 4186 states and 4286 transitions. Word has length 308 [2023-02-15 20:05:48,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:05:48,619 INFO L495 AbstractCegarLoop]: Abstraction has 4186 states and 4286 transitions. [2023-02-15 20:05:48,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 155 states, 155 states have (on average 2.967741935483871) internal successors, (460), 155 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:48,619 INFO L276 IsEmpty]: Start isEmpty. Operand 4186 states and 4286 transitions. [2023-02-15 20:05:48,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-02-15 20:05:48,621 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 20:05:48,621 INFO L195 NwaCegarLoop]: trace histogram [102, 101, 52, 50, 1, 1, 1, 1, 1, 1] [2023-02-15 20:05:48,628 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-02-15 20:05:48,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-02-15 20:05:48,828 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 20:05:48,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 20:05:48,829 INFO L85 PathProgramCache]: Analyzing trace with hash -2103022405, now seen corresponding path program 9 times [2023-02-15 20:05:48,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 20:05:48,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721261113] [2023-02-15 20:05:48,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 20:05:48,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 20:05:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 20:05:51,186 INFO L134 CoverageAnalysis]: Checked inductivity of 15453 backedges. 7903 proven. 7403 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-02-15 20:05:51,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 20:05:51,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721261113] [2023-02-15 20:05:51,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721261113] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 20:05:51,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201280211] [2023-02-15 20:05:51,187 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 20:05:51,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:05:51,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 20:05:51,188 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 20:05:51,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 20:05:51,360 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 102 check-sat command(s) [2023-02-15 20:05:51,360 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 20:05:51,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 103 conjunts are in the unsatisfiable core [2023-02-15 20:05:51,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 20:05:51,720 INFO L134 CoverageAnalysis]: Checked inductivity of 15453 backedges. 7903 proven. 7401 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-02-15 20:05:51,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 20:05:53,568 INFO L134 CoverageAnalysis]: Checked inductivity of 15453 backedges. 7903 proven. 7401 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-02-15 20:05:53,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201280211] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 20:05:53,569 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 20:05:53,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 54, 54] total 55 [2023-02-15 20:05:53,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528434646] [2023-02-15 20:05:53,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 20:05:53,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2023-02-15 20:05:53,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 20:05:53,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2023-02-15 20:05:53,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1484, Invalid=1486, Unknown=0, NotChecked=0, Total=2970 [2023-02-15 20:05:53,571 INFO L87 Difference]: Start difference. First operand 4186 states and 4286 transitions. Second operand has 55 states, 55 states have (on average 3.909090909090909) internal successors, (215), 55 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:53,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 20:05:53,781 INFO L93 Difference]: Finished difference Result 4337 states and 4437 transitions. [2023-02-15 20:05:53,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-02-15 20:05:53,781 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 3.909090909090909) internal successors, (215), 55 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 311 [2023-02-15 20:05:53,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 20:05:53,782 INFO L225 Difference]: With dead ends: 4337 [2023-02-15 20:05:53,782 INFO L226 Difference]: Without dead ends: 0 [2023-02-15 20:05:53,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 724 GetRequests, 569 SyntacticMatches, 102 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3338 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1484, Invalid=1486, Unknown=0, NotChecked=0, Total=2970 [2023-02-15 20:05:53,786 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 20:05:53,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 20:05:53,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-15 20:05:53,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-15 20:05:53,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:53,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 20:05:53,787 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 311 [2023-02-15 20:05:53,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 20:05:53,787 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 20:05:53,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 3.909090909090909) internal successors, (215), 55 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 20:05:53,787 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-15 20:05:53,788 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-15 20:05:53,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-15 20:05:53,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-02-15 20:05:53,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 20:05:53,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-15 20:05:55,588 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-15 20:05:55,588 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 33) no Hoare annotation was computed. [2023-02-15 20:05:55,589 INFO L899 garLoopResultBuilder]: For program point L29-2(lines 28 36) no Hoare annotation was computed. [2023-02-15 20:05:55,589 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-02-15 20:05:55,589 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-15 20:05:55,589 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 24 39) the Hoare annotation is: true [2023-02-15 20:05:55,589 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-15 20:05:55,589 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-15 20:05:55,590 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 28 36) the Hoare annotation is: (let ((.cse3 (<= |ULTIMATE.start_main_~y~0#1| 46)) (.cse4 (<= 46 |ULTIMATE.start_main_~y~0#1|)) (.cse9 (<= |ULTIMATE.start_main_~y~0#1| 39)) (.cse10 (<= 39 |ULTIMATE.start_main_~y~0#1|)) (.cse41 (<= 2 |ULTIMATE.start_main_~y~0#1|)) (.cse42 (<= |ULTIMATE.start_main_~y~0#1| 2)) (.cse27 (<= |ULTIMATE.start_main_~y~0#1| 43)) (.cse28 (<= 43 |ULTIMATE.start_main_~y~0#1|)) (.cse15 (<= |ULTIMATE.start_main_~y~0#1| 12)) (.cse16 (<= 12 |ULTIMATE.start_main_~y~0#1|)) (.cse45 (<= 29 |ULTIMATE.start_main_~y~0#1|)) (.cse46 (<= |ULTIMATE.start_main_~y~0#1| 29)) (.cse35 (<= 19 |ULTIMATE.start_main_~y~0#1|)) (.cse36 (<= |ULTIMATE.start_main_~y~0#1| 19)) (.cse57 (<= |ULTIMATE.start_main_~y~0#1| 18)) (.cse58 (<= 18 |ULTIMATE.start_main_~y~0#1|)) (.cse49 (<= |ULTIMATE.start_main_~y~0#1| 35)) (.cse50 (<= 35 |ULTIMATE.start_main_~y~0#1|)) (.cse23 (<= |ULTIMATE.start_main_~y~0#1| 4)) (.cse24 (<= 4 |ULTIMATE.start_main_~y~0#1|)) (.cse11 (<= |ULTIMATE.start_main_~y~0#1| 31)) (.cse12 (<= 31 |ULTIMATE.start_main_~y~0#1|)) (.cse31 (<= 49 |ULTIMATE.start_main_~y~0#1|)) (.cse32 (<= |ULTIMATE.start_main_~y~0#1| 49)) (.cse71 (<= 37 |ULTIMATE.start_main_~y~0#1|)) (.cse72 (<= |ULTIMATE.start_main_~y~0#1| 37)) (.cse67 (<= |ULTIMATE.start_main_~y~0#1| 23)) (.cse68 (<= 23 |ULTIMATE.start_main_~y~0#1|)) (.cse47 (<= |ULTIMATE.start_main_~y~0#1| 17)) (.cse48 (<= 17 |ULTIMATE.start_main_~y~0#1|)) (.cse53 (<= |ULTIMATE.start_main_~y~0#1| 15)) (.cse54 (<= 15 |ULTIMATE.start_main_~y~0#1|)) (.cse69 (<= 9 |ULTIMATE.start_main_~y~0#1|)) (.cse70 (<= |ULTIMATE.start_main_~y~0#1| 9)) (.cse8 (<= |ULTIMATE.start_main_~y~0#1| 11)) (.cse7 (<= 11 |ULTIMATE.start_main_~y~0#1|)) (.cse17 (<= 24 |ULTIMATE.start_main_~y~0#1|)) (.cse18 (<= |ULTIMATE.start_main_~y~0#1| 24)) (.cse5 (<= |ULTIMATE.start_main_~y~0#1| 32)) (.cse6 (<= 32 |ULTIMATE.start_main_~y~0#1|)) (.cse82 (<= |ULTIMATE.start_main_~y~0#1| 30)) (.cse81 (<= 30 |ULTIMATE.start_main_~y~0#1|)) (.cse33 (<= 26 |ULTIMATE.start_main_~y~0#1|)) (.cse34 (<= |ULTIMATE.start_main_~y~0#1| 26)) (.cse30 (<= 7 |ULTIMATE.start_main_~y~0#1|)) (.cse29 (<= |ULTIMATE.start_main_~y~0#1| 7)) (.cse39 (<= |ULTIMATE.start_main_~y~0#1| 44)) (.cse40 (<= 44 |ULTIMATE.start_main_~y~0#1|)) (.cse59 (<= 13 |ULTIMATE.start_main_~y~0#1|)) (.cse60 (<= |ULTIMATE.start_main_~y~0#1| 13)) (.cse73 (<= |ULTIMATE.start_main_~y~0#1| 27)) (.cse74 (<= 27 |ULTIMATE.start_main_~y~0#1|)) (.cse51 (<= 34 |ULTIMATE.start_main_~y~0#1|)) (.cse52 (<= |ULTIMATE.start_main_~y~0#1| 34)) (.cse2 (= |ULTIMATE.start_main_~y~0#1| 0)) (.cse85 (<= |ULTIMATE.start_main_~y~0#1| 8)) (.cse86 (<= 8 |ULTIMATE.start_main_~y~0#1|)) (.cse63 (<= 36 |ULTIMATE.start_main_~y~0#1|)) (.cse64 (<= |ULTIMATE.start_main_~y~0#1| 36)) (.cse21 (<= |ULTIMATE.start_main_~y~0#1| 14)) (.cse22 (<= 14 |ULTIMATE.start_main_~y~0#1|)) (.cse61 (<= 45 |ULTIMATE.start_main_~y~0#1|)) (.cse62 (<= |ULTIMATE.start_main_~y~0#1| 45)) (.cse83 (<= |ULTIMATE.start_main_~y~0#1| 48)) (.cse84 (<= 48 |ULTIMATE.start_main_~y~0#1|)) (.cse37 (<= 28 |ULTIMATE.start_main_~y~0#1|)) (.cse38 (<= |ULTIMATE.start_main_~y~0#1| 28)) (.cse55 (<= |ULTIMATE.start_main_~y~0#1| 47)) (.cse56 (<= 47 |ULTIMATE.start_main_~y~0#1|)) (.cse93 (<= |ULTIMATE.start_main_~y~0#1| 21)) (.cse94 (<= 21 |ULTIMATE.start_main_~y~0#1|)) (.cse75 (<= |ULTIMATE.start_main_~y~0#1| 3)) (.cse76 (<= 3 |ULTIMATE.start_main_~y~0#1|)) (.cse25 (<= 38 |ULTIMATE.start_main_~y~0#1|)) (.cse26 (<= |ULTIMATE.start_main_~y~0#1| 38)) (.cse79 (<= 22 |ULTIMATE.start_main_~y~0#1|)) (.cse80 (<= |ULTIMATE.start_main_~y~0#1| 22)) (.cse77 (<= |ULTIMATE.start_main_~y~0#1| 25)) (.cse78 (<= 25 |ULTIMATE.start_main_~y~0#1|)) (.cse89 (<= 40 |ULTIMATE.start_main_~y~0#1|)) (.cse90 (<= |ULTIMATE.start_main_~y~0#1| 40)) (.cse43 (<= 5 |ULTIMATE.start_main_~y~0#1|)) (.cse44 (<= |ULTIMATE.start_main_~y~0#1| 5)) (.cse91 (<= |ULTIMATE.start_main_~y~0#1| 1)) (.cse92 (<= 1 |ULTIMATE.start_main_~y~0#1|)) (.cse65 (<= 33 |ULTIMATE.start_main_~y~0#1|)) (.cse66 (<= |ULTIMATE.start_main_~y~0#1| 33)) (.cse19 (<= 10 |ULTIMATE.start_main_~y~0#1|)) (.cse20 (<= |ULTIMATE.start_main_~y~0#1| 10)) (.cse95 (<= |ULTIMATE.start_main_~y~0#1| 42)) (.cse96 (<= 42 |ULTIMATE.start_main_~y~0#1|)) (.cse87 (<= 6 |ULTIMATE.start_main_~y~0#1|)) (.cse88 (<= |ULTIMATE.start_main_~y~0#1| 6)) (.cse97 (<= 20 |ULTIMATE.start_main_~y~0#1|)) (.cse98 (<= |ULTIMATE.start_main_~y~0#1| 20)) (.cse0 (<= |ULTIMATE.start_main_~y~0#1| 41)) (.cse1 (<= 41 |ULTIMATE.start_main_~y~0#1|)) (.cse13 (<= |ULTIMATE.start_main_~y~0#1| 16)) (.cse14 (<= 16 |ULTIMATE.start_main_~y~0#1|))) (or (and (<= 59 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 59) .cse0 .cse1) (and (= |ULTIMATE.start_main_~x~0#1| 0) .cse2) (and .cse3 (= |ULTIMATE.start_main_~x~0#1| 46) .cse4) (and (<= |ULTIMATE.start_main_~x~0#1| 68) .cse5 .cse6 (<= 68 |ULTIMATE.start_main_~x~0#1|)) (and (<= 89 |ULTIMATE.start_main_~x~0#1|) .cse7 .cse8 (<= |ULTIMATE.start_main_~x~0#1| 89)) (and .cse9 .cse10 (= |ULTIMATE.start_main_~x~0#1| 39)) (and (= |ULTIMATE.start_main_~x~0#1| 31) .cse11 .cse12) (and (<= |ULTIMATE.start_main_~x~0#1| 84) .cse13 (<= 84 |ULTIMATE.start_main_~x~0#1|) .cse14) (and (<= |ULTIMATE.start_main_~x~0#1| 88) .cse15 .cse16 (<= 88 |ULTIMATE.start_main_~x~0#1|)) (and .cse17 .cse18 (= |ULTIMATE.start_main_~x~0#1| 24)) (and .cse19 (= |ULTIMATE.start_main_~x~0#1| 10) .cse20) (and (= |ULTIMATE.start_main_~x~0#1| 14) .cse21 .cse22) (and .cse23 (= |ULTIMATE.start_main_~x~0#1| 4) .cse24) (and .cse25 .cse26 (= |ULTIMATE.start_main_~x~0#1| 38)) (and .cse3 (<= 54 |ULTIMATE.start_main_~x~0#1|) .cse4 (<= |ULTIMATE.start_main_~x~0#1| 54)) (and (<= |ULTIMATE.start_main_~x~0#1| 61) .cse9 .cse10 (<= 61 |ULTIMATE.start_main_~x~0#1|)) (and .cse27 (<= |ULTIMATE.start_main_~x~0#1| 57) (<= 57 |ULTIMATE.start_main_~x~0#1|) .cse28) (and (= |ULTIMATE.start_main_~x~0#1| 7) .cse29 .cse30) (and .cse31 .cse32 (= |ULTIMATE.start_main_~x~0#1| 49)) (and (<= |ULTIMATE.start_main_~x~0#1| 74) .cse33 (<= 74 |ULTIMATE.start_main_~x~0#1|) .cse34) (and (= |ULTIMATE.start_main_~x~0#1| 19) .cse35 .cse36) (and .cse37 .cse38 (= |ULTIMATE.start_main_~x~0#1| 28)) (and (<= |ULTIMATE.start_main_~x~0#1| 56) (<= 56 |ULTIMATE.start_main_~x~0#1|) .cse39 .cse40) (and .cse41 .cse42 (<= |ULTIMATE.start_main_~x~0#1| 98) (<= 98 |ULTIMATE.start_main_~x~0#1|)) (and (<= |ULTIMATE.start_main_~x~0#1| 95) .cse43 .cse44 (<= 95 |ULTIMATE.start_main_~x~0#1|)) (and .cse45 .cse46 (<= |ULTIMATE.start_main_~x~0#1| 71) (<= 71 |ULTIMATE.start_main_~x~0#1|)) (and .cse47 .cse48 (<= |ULTIMATE.start_main_~x~0#1| 83) (<= 83 |ULTIMATE.start_main_~x~0#1|)) (and (<= 65 |ULTIMATE.start_main_~x~0#1|) .cse49 (<= |ULTIMATE.start_main_~x~0#1| 65) .cse50) (and .cse51 .cse52 (= |ULTIMATE.start_main_~x~0#1| 34)) (and .cse53 .cse54 (<= |ULTIMATE.start_main_~x~0#1| 85) (<= 85 |ULTIMATE.start_main_~x~0#1|)) (and (= |ULTIMATE.start_main_~x~0#1| 2) .cse41 .cse42) (and .cse55 (<= |ULTIMATE.start_main_~x~0#1| 53) .cse56 (<= 53 |ULTIMATE.start_main_~x~0#1|)) (and .cse27 (= |ULTIMATE.start_main_~x~0#1| 43) .cse28) (and .cse57 .cse58 (= |ULTIMATE.start_main_~x~0#1| 18)) (and .cse59 (= |ULTIMATE.start_main_~x~0#1| 13) .cse60) (and .cse61 (= |ULTIMATE.start_main_~x~0#1| 45) .cse62) (and (<= |ULTIMATE.start_main_~x~0#1| 64) .cse63 (<= 64 |ULTIMATE.start_main_~x~0#1|) .cse64) (and .cse65 .cse66 (<= 67 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 67)) (and .cse15 (= |ULTIMATE.start_main_~x~0#1| 12) .cse16) (and .cse67 .cse68 (= |ULTIMATE.start_main_~x~0#1| 23)) (and .cse45 (= |ULTIMATE.start_main_~x~0#1| 29) .cse46) (and .cse69 (<= 91 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 91) .cse70) (and .cse71 .cse72 (= |ULTIMATE.start_main_~x~0#1| 37)) (and (<= 81 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 81) .cse35 .cse36) (and (= |ULTIMATE.start_main_~x~0#1| 27) .cse73 .cse74) (and .cse57 (<= 82 |ULTIMATE.start_main_~x~0#1|) .cse58 (<= |ULTIMATE.start_main_~x~0#1| 82)) (and .cse49 .cse50 (= |ULTIMATE.start_main_~x~0#1| 35)) (and (<= 96 |ULTIMATE.start_main_~x~0#1|) .cse23 .cse24 (<= |ULTIMATE.start_main_~x~0#1| 96)) (and (= |ULTIMATE.start_main_~x~0#1| 3) .cse75 .cse76) (and (= |ULTIMATE.start_main_~x~0#1| 25) .cse77 .cse78) (and (= |ULTIMATE.start_main_~x~0#1| 22) .cse79 .cse80) (and (<= |ULTIMATE.start_main_~x~0#1| 69) .cse11 .cse12 (<= 69 |ULTIMATE.start_main_~x~0#1|)) (and (<= 51 |ULTIMATE.start_main_~x~0#1|) .cse31 (<= |ULTIMATE.start_main_~x~0#1| 51) .cse32) (and (<= 70 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 70) .cse81 .cse82) (and .cse83 (<= |ULTIMATE.start_main_~x~0#1| 52) (<= 52 |ULTIMATE.start_main_~x~0#1|) .cse84) (and .cse71 (<= |ULTIMATE.start_main_~x~0#1| 63) (<= 63 |ULTIMATE.start_main_~x~0#1|) .cse72) (and .cse67 .cse68 (<= |ULTIMATE.start_main_~x~0#1| 77) (<= 77 |ULTIMATE.start_main_~x~0#1|)) (and .cse47 .cse48 (= |ULTIMATE.start_main_~x~0#1| 17)) (and .cse53 (= |ULTIMATE.start_main_~x~0#1| 15) .cse54) (and .cse69 (= |ULTIMATE.start_main_~x~0#1| 9) .cse70) (and .cse8 .cse7 (= |ULTIMATE.start_main_~x~0#1| 11)) (and (= |ULTIMATE.start_main_~x~0#1| 8) .cse85 .cse86) (and .cse17 (<= |ULTIMATE.start_main_~x~0#1| 76) .cse18 (<= 76 |ULTIMATE.start_main_~x~0#1|)) (and (<= |ULTIMATE.start_main_~x~0#1| 50) (<= 50 |ULTIMATE.start_main_~x~0#1|) (<= 50 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 50)) (and .cse5 .cse6 (= |ULTIMATE.start_main_~x~0#1| 32)) (and (<= |ULTIMATE.start_main_~x~0#1| 94) .cse87 .cse88 (<= 94 |ULTIMATE.start_main_~x~0#1|)) (and (= |ULTIMATE.start_main_~x~0#1| 30) .cse82 .cse81) (and (= |ULTIMATE.start_main_~x~0#1| 26) .cse33 .cse34) (and (<= |ULTIMATE.start_main_~x~0#1| 93) (<= 93 |ULTIMATE.start_main_~x~0#1|) .cse30 .cse29) (and (= |ULTIMATE.start_main_~x~0#1| 44) .cse39 .cse40) (and (<= |ULTIMATE.start_main_~x~0#1| 87) .cse59 (<= 87 |ULTIMATE.start_main_~x~0#1|) .cse60) (and (<= |ULTIMATE.start_main_~x~0#1| 73) .cse73 (<= 73 |ULTIMATE.start_main_~x~0#1|) .cse74) (and .cse51 .cse52 (<= |ULTIMATE.start_main_~x~0#1| 66) (<= 66 |ULTIMATE.start_main_~x~0#1|)) (and .cse89 (= |ULTIMATE.start_main_~x~0#1| 40) .cse90) (and (< 99 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 100) .cse2) (and (<= 92 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 92) .cse85 .cse86) (and (= |ULTIMATE.start_main_~x~0#1| 36) .cse63 .cse64) (and (<= |ULTIMATE.start_main_~x~0#1| 86) (<= 86 |ULTIMATE.start_main_~x~0#1|) .cse21 .cse22) (and .cse61 (<= 55 |ULTIMATE.start_main_~x~0#1|) .cse62 (<= |ULTIMATE.start_main_~x~0#1| 55)) (and .cse83 (= |ULTIMATE.start_main_~x~0#1| 48) .cse84) (and .cse91 (<= 99 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 99) .cse92) (and .cse37 .cse38 (<= 72 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 72)) (and .cse93 (<= |ULTIMATE.start_main_~x~0#1| 79) (<= 79 |ULTIMATE.start_main_~x~0#1|) .cse94) (and .cse55 (= |ULTIMATE.start_main_~x~0#1| 47) .cse56) (and .cse93 (= |ULTIMATE.start_main_~x~0#1| 21) .cse94) (and (<= |ULTIMATE.start_main_~x~0#1| 97) (<= 97 |ULTIMATE.start_main_~x~0#1|) .cse75 .cse76) (and .cse25 .cse26 (<= 62 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 62)) (and (<= |ULTIMATE.start_main_~x~0#1| 78) (<= 78 |ULTIMATE.start_main_~x~0#1|) .cse79 .cse80) (and .cse77 (<= 75 |ULTIMATE.start_main_~x~0#1|) .cse78 (<= |ULTIMATE.start_main_~x~0#1| 75)) (and (<= |ULTIMATE.start_main_~x~0#1| 60) .cse89 (<= 60 |ULTIMATE.start_main_~x~0#1|) .cse90) (and .cse43 .cse44 (= |ULTIMATE.start_main_~x~0#1| 5)) (and .cse91 (= |ULTIMATE.start_main_~x~0#1| 1) .cse92) (and (<= 58 |ULTIMATE.start_main_~x~0#1|) .cse95 .cse96 (<= |ULTIMATE.start_main_~x~0#1| 58)) (and .cse65 .cse66 (= |ULTIMATE.start_main_~x~0#1| 33)) (and (<= |ULTIMATE.start_main_~x~0#1| 90) .cse19 (<= 90 |ULTIMATE.start_main_~x~0#1|) .cse20) (and .cse95 .cse96 (= |ULTIMATE.start_main_~x~0#1| 42)) (and .cse97 (<= |ULTIMATE.start_main_~x~0#1| 80) (<= 80 |ULTIMATE.start_main_~x~0#1|) .cse98) (and .cse87 (= |ULTIMATE.start_main_~x~0#1| 6) .cse88) (and .cse97 (= |ULTIMATE.start_main_~x~0#1| 20) .cse98) (and .cse0 (= |ULTIMATE.start_main_~x~0#1| 41) .cse1) (and (= |ULTIMATE.start_main_~x~0#1| 16) .cse13 .cse14))) [2023-02-15 20:05:55,591 INFO L899 garLoopResultBuilder]: For program point L28-3(lines 28 36) no Hoare annotation was computed. [2023-02-15 20:05:55,591 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-02-15 20:05:55,591 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2023-02-15 20:05:55,591 INFO L902 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2023-02-15 20:05:55,596 INFO L445 BasicCegarLoop]: Path program histogram: [9, 1, 1, 1] [2023-02-15 20:05:55,597 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 20:05:55,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 08:05:55 BoogieIcfgContainer [2023-02-15 20:05:55,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 20:05:55,630 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 20:05:55,630 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 20:05:55,631 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 20:05:55,631 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 08:05:25" (3/4) ... [2023-02-15 20:05:55,633 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-15 20:05:55,640 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-02-15 20:05:55,640 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-02-15 20:05:55,640 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-15 20:05:55,640 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-15 20:05:55,666 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 20:05:55,666 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 20:05:55,667 INFO L158 Benchmark]: Toolchain (without parser) took 30448.15ms. Allocated memory was 138.4MB in the beginning and 511.7MB in the end (delta: 373.3MB). Free memory was 106.8MB in the beginning and 326.4MB in the end (delta: -219.6MB). Peak memory consumption was 156.2MB. Max. memory is 16.1GB. [2023-02-15 20:05:55,667 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory was 61.0MB in the beginning and 60.9MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 20:05:55,667 INFO L158 Benchmark]: CACSL2BoogieTranslator took 178.75ms. Allocated memory is still 138.4MB. Free memory was 106.8MB in the beginning and 96.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 20:05:55,667 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.87ms. Allocated memory is still 138.4MB. Free memory was 96.8MB in the beginning and 95.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 20:05:55,667 INFO L158 Benchmark]: Boogie Preprocessor took 25.72ms. Allocated memory is still 138.4MB. Free memory was 95.2MB in the beginning and 94.2MB in the end (delta: 977.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 20:05:55,667 INFO L158 Benchmark]: RCFGBuilder took 204.26ms. Allocated memory is still 138.4MB. Free memory was 94.2MB in the beginning and 85.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 20:05:55,668 INFO L158 Benchmark]: TraceAbstraction took 29976.00ms. Allocated memory was 138.4MB in the beginning and 511.7MB in the end (delta: 373.3MB). Free memory was 84.2MB in the beginning and 329.6MB in the end (delta: -245.3MB). Peak memory consumption was 296.7MB. Max. memory is 16.1GB. [2023-02-15 20:05:55,668 INFO L158 Benchmark]: Witness Printer took 35.94ms. Allocated memory is still 511.7MB. Free memory was 329.6MB in the beginning and 326.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-15 20:05:55,669 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory was 61.0MB in the beginning and 60.9MB in the end (delta: 151.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 178.75ms. Allocated memory is still 138.4MB. Free memory was 106.8MB in the beginning and 96.8MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.87ms. Allocated memory is still 138.4MB. Free memory was 96.8MB in the beginning and 95.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.72ms. Allocated memory is still 138.4MB. Free memory was 95.2MB in the beginning and 94.2MB in the end (delta: 977.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 204.26ms. Allocated memory is still 138.4MB. Free memory was 94.2MB in the beginning and 85.2MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 29976.00ms. Allocated memory was 138.4MB in the beginning and 511.7MB in the end (delta: 373.3MB). Free memory was 84.2MB in the beginning and 329.6MB in the end (delta: -245.3MB). Peak memory consumption was 296.7MB. Max. memory is 16.1GB. * Witness Printer took 35.94ms. Allocated memory is still 511.7MB. Free memory was 329.6MB in the beginning and 326.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 29.9s, OverallIterations: 12, TraceHistogramMax: 102, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 255 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 255 mSDsluCounter, 16929 SdHoareTripleChecker+Invalid, 4.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16531 mSDsCounter, 192 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18846 IncrementalHoareTripleChecker+Invalid, 19038 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 192 mSolverCounterUnsat, 398 mSDtfsCounter, 18846 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2834 GetRequests, 2205 SyntacticMatches, 176 SemanticMatches, 453 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18328 ImplicationChecksByTransitivity, 11.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4186occurred in iteration=11, InterpolantAutomatonStates: 373, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 952 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 106 NumberOfFragments, 1160 HoareAnnotationTreeSize, 3 FomulaSimplifications, 5238 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 18.6s InterpolantComputationTime, 2530 NumberOfCodeBlocks, 2452 NumberOfCodeBlocksAsserted, 208 NumberOfCheckSat, 3754 ConstructedInterpolants, 0 QuantifiedInterpolants, 11870 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2909 ConjunctsInSsa, 468 ConjunctsInUnsatCore, 30 InterpolantComputations, 3 PerfectInterpolantSequences, 53726/131967 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((59 <= x && x <= 59) && y <= 41) && 41 <= y) || (x == 0 && y == 0)) || ((y <= 46 && x == 46) && 46 <= y)) || (((x <= 68 && y <= 32) && 32 <= y) && 68 <= x)) || (((89 <= x && 11 <= y) && y <= 11) && x <= 89)) || ((y <= 39 && 39 <= y) && x == 39)) || ((x == 31 && y <= 31) && 31 <= y)) || (((x <= 84 && y <= 16) && 84 <= x) && 16 <= y)) || (((x <= 88 && y <= 12) && 12 <= y) && 88 <= x)) || ((24 <= y && y <= 24) && x == 24)) || ((10 <= y && x == 10) && y <= 10)) || ((x == 14 && y <= 14) && 14 <= y)) || ((y <= 4 && x == 4) && 4 <= y)) || ((38 <= y && y <= 38) && x == 38)) || (((y <= 46 && 54 <= x) && 46 <= y) && x <= 54)) || (((x <= 61 && y <= 39) && 39 <= y) && 61 <= x)) || (((y <= 43 && x <= 57) && 57 <= x) && 43 <= y)) || ((x == 7 && y <= 7) && 7 <= y)) || ((49 <= y && y <= 49) && x == 49)) || (((x <= 74 && 26 <= y) && 74 <= x) && y <= 26)) || ((x == 19 && 19 <= y) && y <= 19)) || ((28 <= y && y <= 28) && x == 28)) || (((x <= 56 && 56 <= x) && y <= 44) && 44 <= y)) || (((2 <= y && y <= 2) && x <= 98) && 98 <= x)) || (((x <= 95 && 5 <= y) && y <= 5) && 95 <= x)) || (((29 <= y && y <= 29) && x <= 71) && 71 <= x)) || (((y <= 17 && 17 <= y) && x <= 83) && 83 <= x)) || (((65 <= x && y <= 35) && x <= 65) && 35 <= y)) || ((34 <= y && y <= 34) && x == 34)) || (((y <= 15 && 15 <= y) && x <= 85) && 85 <= x)) || ((x == 2 && 2 <= y) && y <= 2)) || (((y <= 47 && x <= 53) && 47 <= y) && 53 <= x)) || ((y <= 43 && x == 43) && 43 <= y)) || ((y <= 18 && 18 <= y) && x == 18)) || ((13 <= y && x == 13) && y <= 13)) || ((45 <= y && x == 45) && y <= 45)) || (((x <= 64 && 36 <= y) && 64 <= x) && y <= 36)) || (((33 <= y && y <= 33) && 67 <= x) && x <= 67)) || ((y <= 12 && x == 12) && 12 <= y)) || ((y <= 23 && 23 <= y) && x == 23)) || ((29 <= y && x == 29) && y <= 29)) || (((9 <= y && 91 <= x) && x <= 91) && y <= 9)) || ((37 <= y && y <= 37) && x == 37)) || (((81 <= x && x <= 81) && 19 <= y) && y <= 19)) || ((x == 27 && y <= 27) && 27 <= y)) || (((y <= 18 && 82 <= x) && 18 <= y) && x <= 82)) || ((y <= 35 && 35 <= y) && x == 35)) || (((96 <= x && y <= 4) && 4 <= y) && x <= 96)) || ((x == 3 && y <= 3) && 3 <= y)) || ((x == 25 && y <= 25) && 25 <= y)) || ((x == 22 && 22 <= y) && y <= 22)) || (((x <= 69 && y <= 31) && 31 <= y) && 69 <= x)) || (((51 <= x && 49 <= y) && x <= 51) && y <= 49)) || (((70 <= x && x <= 70) && 30 <= y) && y <= 30)) || (((y <= 48 && x <= 52) && 52 <= x) && 48 <= y)) || (((37 <= y && x <= 63) && 63 <= x) && y <= 37)) || (((y <= 23 && 23 <= y) && x <= 77) && 77 <= x)) || ((y <= 17 && 17 <= y) && x == 17)) || ((y <= 15 && x == 15) && 15 <= y)) || ((9 <= y && x == 9) && y <= 9)) || ((y <= 11 && 11 <= y) && x == 11)) || ((x == 8 && y <= 8) && 8 <= y)) || (((24 <= y && x <= 76) && y <= 24) && 76 <= x)) || (((x <= 50 && 50 <= x) && 50 <= y) && y <= 50)) || ((y <= 32 && 32 <= y) && x == 32)) || (((x <= 94 && 6 <= y) && y <= 6) && 94 <= x)) || ((x == 30 && y <= 30) && 30 <= y)) || ((x == 26 && 26 <= y) && y <= 26)) || (((x <= 93 && 93 <= x) && 7 <= y) && y <= 7)) || ((x == 44 && y <= 44) && 44 <= y)) || (((x <= 87 && 13 <= y) && 87 <= x) && y <= 13)) || (((x <= 73 && y <= 27) && 73 <= x) && 27 <= y)) || (((34 <= y && y <= 34) && x <= 66) && 66 <= x)) || ((40 <= y && x == 40) && y <= 40)) || ((99 < x && x <= 100) && y == 0)) || (((92 <= x && x <= 92) && y <= 8) && 8 <= y)) || ((x == 36 && 36 <= y) && y <= 36)) || (((x <= 86 && 86 <= x) && y <= 14) && 14 <= y)) || (((45 <= y && 55 <= x) && y <= 45) && x <= 55)) || ((y <= 48 && x == 48) && 48 <= y)) || (((y <= 1 && 99 <= x) && x <= 99) && 1 <= y)) || (((28 <= y && y <= 28) && 72 <= x) && x <= 72)) || (((y <= 21 && x <= 79) && 79 <= x) && 21 <= y)) || ((y <= 47 && x == 47) && 47 <= y)) || ((y <= 21 && x == 21) && 21 <= y)) || (((x <= 97 && 97 <= x) && y <= 3) && 3 <= y)) || (((38 <= y && y <= 38) && 62 <= x) && x <= 62)) || (((x <= 78 && 78 <= x) && 22 <= y) && y <= 22)) || (((y <= 25 && 75 <= x) && 25 <= y) && x <= 75)) || (((x <= 60 && 40 <= y) && 60 <= x) && y <= 40)) || ((5 <= y && y <= 5) && x == 5)) || ((y <= 1 && x == 1) && 1 <= y)) || (((58 <= x && y <= 42) && 42 <= y) && x <= 58)) || ((33 <= y && y <= 33) && x == 33)) || (((x <= 90 && 10 <= y) && 90 <= x) && y <= 10)) || ((y <= 42 && 42 <= y) && x == 42)) || (((20 <= y && x <= 80) && 80 <= x) && y <= 20)) || ((6 <= y && x == 6) && y <= 6)) || ((20 <= y && x == 20) && y <= 20)) || ((y <= 41 && x == 41) && 41 <= y)) || ((x == 16 && y <= 16) && 16 <= y) RESULT: Ultimate proved your program to be correct! [2023-02-15 20:05:55,694 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE