./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array7_pattern.c --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/array-patterns/array7_pattern.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85b55cdd1f26353e63ecc189ba28ba899672edc569fe3ef3f04470f2b5e667fa --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 18:49:10,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 18:49:10,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 18:49:10,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 18:49:10,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 18:49:10,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 18:49:10,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 18:49:10,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 18:49:10,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 18:49:10,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 18:49:10,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 18:49:10,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 18:49:10,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 18:49:10,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 18:49:10,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 18:49:10,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 18:49:10,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 18:49:10,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 18:49:10,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 18:49:10,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 18:49:10,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 18:49:10,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 18:49:10,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 18:49:10,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 18:49:10,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 18:49:10,735 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 18:49:10,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 18:49:10,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 18:49:10,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 18:49:10,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 18:49:10,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 18:49:10,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 18:49:10,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 18:49:10,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 18:49:10,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 18:49:10,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 18:49:10,743 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 18:49:10,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 18:49:10,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 18:49:10,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 18:49:10,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 18:49:10,746 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 18:49:10,788 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 18:49:10,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 18:49:10,789 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 18:49:10,789 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 18:49:10,790 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 18:49:10,790 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 18:49:10,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 18:49:10,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 18:49:10,791 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 18:49:10,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 18:49:10,792 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 18:49:10,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 18:49:10,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 18:49:10,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 18:49:10,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 18:49:10,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 18:49:10,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 18:49:10,793 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 18:49:10,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 18:49:10,793 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 18:49:10,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 18:49:10,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 18:49:10,794 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 18:49:10,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 18:49:10,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 18:49:10,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 18:49:10,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 18:49:10,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 18:49:10,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 18:49:10,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 18:49:10,796 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 18:49:10,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 18:49:10,796 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 18:49:10,797 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 18:49:10,797 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 18:49:10,797 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85b55cdd1f26353e63ecc189ba28ba899672edc569fe3ef3f04470f2b5e667fa [2023-02-15 18:49:11,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 18:49:11,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 18:49:11,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 18:49:11,063 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 18:49:11,063 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 18:49:11,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array7_pattern.c [2023-02-15 18:49:12,119 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 18:49:12,289 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 18:49:12,290 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array7_pattern.c [2023-02-15 18:49:12,295 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a093a9551/a6a49da7b69e4eaf95ebb66d1685d6f4/FLAG75c8c0c85 [2023-02-15 18:49:12,304 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a093a9551/a6a49da7b69e4eaf95ebb66d1685d6f4 [2023-02-15 18:49:12,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 18:49:12,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 18:49:12,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 18:49:12,307 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 18:49:12,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 18:49:12,311 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 06:49:12" (1/1) ... [2023-02-15 18:49:12,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@456f6def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:49:12, skipping insertion in model container [2023-02-15 18:49:12,312 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 06:49:12" (1/1) ... [2023-02-15 18:49:12,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 18:49:12,335 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 18:49:12,431 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array7_pattern.c[1375,1388] [2023-02-15 18:49:12,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 18:49:12,451 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 18:49:12,459 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array7_pattern.c[1375,1388] [2023-02-15 18:49:12,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 18:49:12,478 INFO L208 MainTranslator]: Completed translation [2023-02-15 18:49:12,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:49:12 WrapperNode [2023-02-15 18:49:12,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 18:49:12,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 18:49:12,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 18:49:12,479 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 18:49:12,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:49:12" (1/1) ... [2023-02-15 18:49:12,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:49:12" (1/1) ... [2023-02-15 18:49:12,506 INFO L138 Inliner]: procedures = 16, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2023-02-15 18:49:12,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 18:49:12,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 18:49:12,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 18:49:12,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 18:49:12,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:49:12" (1/1) ... [2023-02-15 18:49:12,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:49:12" (1/1) ... [2023-02-15 18:49:12,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:49:12" (1/1) ... [2023-02-15 18:49:12,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:49:12" (1/1) ... [2023-02-15 18:49:12,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:49:12" (1/1) ... [2023-02-15 18:49:12,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:49:12" (1/1) ... [2023-02-15 18:49:12,526 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:49:12" (1/1) ... [2023-02-15 18:49:12,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:49:12" (1/1) ... [2023-02-15 18:49:12,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 18:49:12,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 18:49:12,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 18:49:12,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 18:49:12,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:49:12" (1/1) ... [2023-02-15 18:49:12,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 18:49:12,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:49:12,562 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 18:49:12,569 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 18:49:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 18:49:12,592 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-15 18:49:12,592 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-15 18:49:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 18:49:12,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-15 18:49:12,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-15 18:49:12,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 18:49:12,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 18:49:12,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-15 18:49:12,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-15 18:49:12,655 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 18:49:12,657 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 18:49:12,801 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 18:49:12,807 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 18:49:12,807 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-15 18:49:12,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 06:49:12 BoogieIcfgContainer [2023-02-15 18:49:12,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 18:49:12,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 18:49:12,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 18:49:12,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 18:49:12,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 06:49:12" (1/3) ... [2023-02-15 18:49:12,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1b84ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 06:49:12, skipping insertion in model container [2023-02-15 18:49:12,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 06:49:12" (2/3) ... [2023-02-15 18:49:12,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1b84ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 06:49:12, skipping insertion in model container [2023-02-15 18:49:12,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 06:49:12" (3/3) ... [2023-02-15 18:49:12,816 INFO L112 eAbstractionObserver]: Analyzing ICFG array7_pattern.c [2023-02-15 18:49:12,831 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 18:49:12,832 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 18:49:12,869 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 18:49:12,883 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;@f848fa7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 18:49:12,888 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 18:49:12,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 18:49:12,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-15 18:49:12,912 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:49:12,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:49:12,913 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:49:12,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:49:12,921 INFO L85 PathProgramCache]: Analyzing trace with hash -440982883, now seen corresponding path program 1 times [2023-02-15 18:49:12,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:49:12,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504074242] [2023-02-15 18:49:12,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:12,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:49:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:49:13,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 18:49:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:49:13,131 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 18:49:13,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:49:13,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504074242] [2023-02-15 18:49:13,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504074242] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 18:49:13,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 18:49:13,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 18:49:13,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325867614] [2023-02-15 18:49:13,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 18:49:13,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 18:49:13,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:49:13,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 18:49:13,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 18:49:13,182 INFO L87 Difference]: Start difference. First operand has 26 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 18:49:13,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:49:13,203 INFO L93 Difference]: Finished difference Result 49 states and 71 transitions. [2023-02-15 18:49:13,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 18:49:13,204 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-02-15 18:49:13,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:49:13,215 INFO L225 Difference]: With dead ends: 49 [2023-02-15 18:49:13,216 INFO L226 Difference]: Without dead ends: 22 [2023-02-15 18:49:13,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 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 18:49:13,224 INFO L413 NwaCegarLoop]: 30 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, 30 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 18:49:13,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 18:49:13,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-15 18:49:13,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-15 18:49:13,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 18:49:13,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2023-02-15 18:49:13,260 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2023-02-15 18:49:13,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:49:13,261 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2023-02-15 18:49:13,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-15 18:49:13,262 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2023-02-15 18:49:13,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-15 18:49:13,263 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:49:13,263 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:49:13,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 18:49:13,264 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:49:13,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:49:13,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1396045698, now seen corresponding path program 1 times [2023-02-15 18:49:13,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:49:13,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699420039] [2023-02-15 18:49:13,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:13,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:49:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:49:13,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 18:49:13,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:49:13,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 18:49:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:49:13,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-02-15 18:49:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:49:13,576 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-15 18:49:13,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:49:13,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699420039] [2023-02-15 18:49:13,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699420039] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 18:49:13,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 18:49:13,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 18:49:13,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253226533] [2023-02-15 18:49:13,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 18:49:13,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 18:49:13,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:49:13,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 18:49:13,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 18:49:13,580 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:49:13,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:49:13,613 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2023-02-15 18:49:13,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 18:49:13,614 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2023-02-15 18:49:13,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:49:13,616 INFO L225 Difference]: With dead ends: 27 [2023-02-15 18:49:13,616 INFO L226 Difference]: Without dead ends: 23 [2023-02-15 18:49:13,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 18:49:13,619 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 4 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 18:49:13,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 59 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 18:49:13,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-02-15 18:49:13,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-02-15 18:49:13,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 18:49:13,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2023-02-15 18:49:13,629 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 27 [2023-02-15 18:49:13,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:49:13,631 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2023-02-15 18:49:13,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:49:13,631 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2023-02-15 18:49:13,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-15 18:49:13,632 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:49:13,633 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:49:13,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 18:49:13,634 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:49:13,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:49:13,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1623352868, now seen corresponding path program 1 times [2023-02-15 18:49:13,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:49:13,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194919792] [2023-02-15 18:49:13,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:13,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:49:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:49:13,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 18:49:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:49:13,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-02-15 18:49:13,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:49:13,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-02-15 18:49:13,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:49:13,873 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-15 18:49:13,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:49:13,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194919792] [2023-02-15 18:49:13,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194919792] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 18:49:13,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 18:49:13,875 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 18:49:13,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938180871] [2023-02-15 18:49:13,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 18:49:13,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 18:49:13,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:49:13,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 18:49:13,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 18:49:13,879 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:49:13,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:49:13,936 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2023-02-15 18:49:13,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 18:49:13,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 29 [2023-02-15 18:49:13,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:49:13,940 INFO L225 Difference]: With dead ends: 43 [2023-02-15 18:49:13,940 INFO L226 Difference]: Without dead ends: 26 [2023-02-15 18:49:13,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 18:49:13,946 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 15 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 18:49:13,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 61 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 18:49:13,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-02-15 18:49:13,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2023-02-15 18:49:13,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 18:49:13,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2023-02-15 18:49:13,960 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 29 [2023-02-15 18:49:13,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:49:13,960 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2023-02-15 18:49:13,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-15 18:49:13,961 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-02-15 18:49:13,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-15 18:49:13,961 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:49:13,962 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:49:13,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 18:49:13,962 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:49:13,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:49:13,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1083978846, now seen corresponding path program 1 times [2023-02-15 18:49:13,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:49:13,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659632659] [2023-02-15 18:49:13,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:13,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:49:13,987 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:49:13,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1897296924] [2023-02-15 18:49:13,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:13,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:13,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:49:13,993 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 18:49:14,000 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 18:49:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 18:49:14,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-15 18:49:14,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:49:14,236 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-15 18:49:14,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:49:14,494 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 18:49:14,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:49:14,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659632659] [2023-02-15 18:49:14,495 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:49:14,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897296924] [2023-02-15 18:49:14,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897296924] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 18:49:14,496 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 18:49:14,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 15 [2023-02-15 18:49:14,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967907628] [2023-02-15 18:49:14,498 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 18:49:14,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-15 18:49:14,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:49:14,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-15 18:49:14,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-02-15 18:49:14,501 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 15 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 18:49:14,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:49:14,679 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions. [2023-02-15 18:49:14,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-15 18:49:14,680 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 31 [2023-02-15 18:49:14,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:49:14,681 INFO L225 Difference]: With dead ends: 73 [2023-02-15 18:49:14,681 INFO L226 Difference]: Without dead ends: 42 [2023-02-15 18:49:14,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2023-02-15 18:49:14,682 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 31 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 18:49:14,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 110 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 18:49:14,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-15 18:49:14,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2023-02-15 18:49:14,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 18:49:14,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2023-02-15 18:49:14,687 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 31 [2023-02-15 18:49:14,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:49:14,688 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2023-02-15 18:49:14,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 13 states have internal predecessors, (33), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 18:49:14,688 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2023-02-15 18:49:14,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-15 18:49:14,689 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:49:14,689 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:49:14,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 18:49:14,893 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 18:49:14,893 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:49:14,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:49:14,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1214758882, now seen corresponding path program 2 times [2023-02-15 18:49:14,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:49:14,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162604995] [2023-02-15 18:49:14,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:14,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:49:14,908 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:49:14,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [12509095] [2023-02-15 18:49:14,909 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 18:49:14,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:14,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:49:14,911 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 18:49:14,932 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 18:49:14,995 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 18:49:14,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 18:49:14,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 18:49:14,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:49:15,059 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 18:49:15,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:49:15,113 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-15 18:49:15,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:49:15,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162604995] [2023-02-15 18:49:15,114 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:49:15,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12509095] [2023-02-15 18:49:15,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12509095] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 18:49:15,115 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 18:49:15,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2023-02-15 18:49:15,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104556267] [2023-02-15 18:49:15,115 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 18:49:15,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 18:49:15,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:49:15,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 18:49:15,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-02-15 18:49:15,117 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-15 18:49:15,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:49:15,245 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2023-02-15 18:49:15,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 18:49:15,246 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 35 [2023-02-15 18:49:15,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:49:15,247 INFO L225 Difference]: With dead ends: 40 [2023-02-15 18:49:15,247 INFO L226 Difference]: Without dead ends: 36 [2023-02-15 18:49:15,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2023-02-15 18:49:15,249 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 38 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 18:49:15,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 68 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 18:49:15,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-15 18:49:15,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-02-15 18:49:15,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 18:49:15,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2023-02-15 18:49:15,254 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 35 [2023-02-15 18:49:15,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:49:15,255 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2023-02-15 18:49:15,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.25) internal successors, (39), 12 states have internal predecessors, (39), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-02-15 18:49:15,255 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2023-02-15 18:49:15,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-15 18:49:15,256 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:49:15,256 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:49:15,263 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 18:49:15,462 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 18:49:15,463 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:49:15,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:49:15,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1618850078, now seen corresponding path program 3 times [2023-02-15 18:49:15,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:49:15,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093850718] [2023-02-15 18:49:15,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:49:15,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:49:15,488 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:49:15,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1803109759] [2023-02-15 18:49:15,488 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 18:49:15,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:49:15,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:49:15,490 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 18:49:15,492 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 18:49:15,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-02-15 18:49:15,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 18:49:15,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 85 conjunts are in the unsatisfiable core [2023-02-15 18:49:15,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:49:15,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-15 18:49:15,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:15,760 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2023-02-15 18:49:15,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2023-02-15 18:49:15,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2023-02-15 18:49:15,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-02-15 18:49:15,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:15,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2023-02-15 18:49:15,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:15,893 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2023-02-15 18:49:15,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:15,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:15,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 49 [2023-02-15 18:49:16,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:16,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 52 [2023-02-15 18:49:16,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:16,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:16,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:16,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 36 [2023-02-15 18:49:16,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:16,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:16,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:16,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:16,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 62 [2023-02-15 18:49:17,635 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-02-15 18:49:17,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 1172 treesize of output 1087 [2023-02-15 18:49:17,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:17,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:17,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:17,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:17,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:17,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:17,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:17,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:17,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:17,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:17,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:17,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:17,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:17,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:17,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:17,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,004 INFO L217 Elim1Store]: Index analysis took 295 ms [2023-02-15 18:49:18,041 INFO L321 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2023-02-15 18:49:18,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 26 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 2 case distinctions, treesize of input 431 treesize of output 518 [2023-02-15 18:49:18,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:18,298 INFO L217 Elim1Store]: Index analysis took 199 ms [2023-02-15 18:49:18,506 INFO L321 Elim1Store]: treesize reduction 185, result has 0.5 percent of original size [2023-02-15 18:49:18,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 6 stores, 7 select indices, 7 select index equivalence classes, 31 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 7 case distinctions, treesize of input 657 treesize of output 1315 [2023-02-15 18:49:20,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:20,985 INFO L321 Elim1Store]: treesize reduction 245, result has 5.4 percent of original size [2023-02-15 18:49:20,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 7 select indices, 7 select index equivalence classes, 23 disjoint index pairs (out of 21 index pairs), introduced 9 new quantified variables, introduced 9 case distinctions, treesize of input 374 treesize of output 782 [2023-02-15 18:49:21,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,267 INFO L321 Elim1Store]: treesize reduction 211, result has 0.5 percent of original size [2023-02-15 18:49:21,268 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 8 select indices, 8 select index equivalence classes, 23 disjoint index pairs (out of 28 index pairs), introduced 11 new quantified variables, introduced 9 case distinctions, treesize of input 604 treesize of output 1652 [2023-02-15 18:49:21,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:21,396 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 40 [2023-02-15 18:49:24,475 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 18:49:24,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 197 treesize of output 167 [2023-02-15 18:49:24,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,786 INFO L321 Elim1Store]: treesize reduction 14, result has 93.2 percent of original size [2023-02-15 18:49:24,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 13 case distinctions, treesize of input 103 treesize of output 251 [2023-02-15 18:49:24,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:24,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:49:25,033 INFO L321 Elim1Store]: treesize reduction 12, result has 90.7 percent of original size [2023-02-15 18:49:25,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 13 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 162 treesize of output 208 [2023-02-15 18:49:29,480 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 18:49:29,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:50:55,688 WARN L233 SmtUtils]: Spent 52.65s on a formula simplification that was a NOOP. DAG size: 218 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 18:52:31,923 WARN L859 $PredicateComparison]: unable to prove that (or (let ((.cse20 (* 4294967297 |c_ULTIMATE.start_main_~pivot~0#1|)) (.cse28 (* 4294967295 |c_ULTIMATE.start_main_~pivot~0#1|))) (let ((.cse1 (+ .cse28 2147483647)) (.cse15 (+ .cse20 2147483647)) (.cse18 (* 8589934593 |c_ULTIMATE.start_main_~pivot~0#1|)) (.cse19 (+ .cse28 4294967296)) (.cse3 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 4)) (.cse5 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 8)) (.cse7 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| 8)) (.cse6 (+ |c_ULTIMATE.start_main_~#array2~0#1.offset| 4)) (.cse13 (select |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base|)) (.cse14 (* |c_ULTIMATE.start_main_~pivot~0#1| 4294967295)) (.cse27 (+ .cse20 4294967296)) (.cse21 (+ (* 8589934591 |c_ULTIMATE.start_main_~pivot~0#1|) c_~ARR_SIZE~0))) (and (forall ((|aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| Int) (|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_101_104| Int) (|aux_div_ULTIMATE.start_main_~index~0#1_101| Int)) (let ((.cse23 (* 4294967296 |aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_101_104|)) (.cse22 (* 4294967296 |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|))) (let ((.cse0 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse22)) (.cse16 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse22 .cse23)) (.cse17 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse22 .cse23 (* 4294967296 |aux_div_ULTIMATE.start_main_~index~0#1_101|)))) (or (<= .cse0 .cse1) (= (let ((.cse10 (* (mod |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| 4294967296) 4)) (.cse11 (* (mod (+ |c_ULTIMATE.start_main_~pivot~0#1| |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) 4294967296) 4)) (.cse12 (* (mod (+ .cse14 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) 4294967296) 4))) (let ((.cse8 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse10) (+ (select .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse11 (- 17179869184))) (select .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse12))))))) (let ((.cse4 (let ((.cse9 (select .cse8 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (store .cse9 (+ .cse10 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (+ (select .cse9 (+ .cse11 |c_ULTIMATE.start_main_~#array2~0#1.offset| (- 17179869184))) (select .cse9 (+ .cse12 |c_ULTIMATE.start_main_~#array2~0#1.offset|))))))) (let ((.cse2 (select (store .cse8 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse4) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse2 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse2 .cse3) (select .cse4 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse4 .cse5) (select .cse4 .cse6) (select .cse2 .cse7)))))) 0) (< .cse15 .cse16) (< |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| 0) (< .cse17 .cse18) (<= .cse19 .cse0) (< 2147483647 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) (< .cse16 .cse20) (<= .cse21 .cse17))))) (forall ((|aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| Int) (|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_101_104| Int) (|aux_div_ULTIMATE.start_main_~index~0#1_101| Int)) (let ((.cse36 (* 4294967296 |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|)) (.cse37 (* 4294967296 |aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_101_104|))) (let ((.cse24 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse36 .cse37)) (.cse26 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse36)) (.cse25 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse36 .cse37 (* 4294967296 |aux_div_ULTIMATE.start_main_~index~0#1_101|)))) (or (<= .cse24 .cse15) (< .cse25 .cse18) (<= 4294967296 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) (< .cse1 .cse26) (<= .cse27 .cse24) (<= |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| 2147483647) (< .cse26 .cse28) (<= .cse21 .cse25) (= (let ((.cse35 (* (mod (+ .cse14 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) 4294967296) 4)) (.cse34 (* (mod (+ |c_ULTIMATE.start_main_~pivot~0#1| |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) 4294967296) 4))) (let ((.cse31 (* (mod |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| 4294967296) 4)) (.cse32 (+ (select .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse35 (- 17179869184))) (select .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse34))))) (let ((.cse30 (let ((.cse33 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse31 (- 17179869184)) .cse32)) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (store .cse33 (+ .cse31 |c_ULTIMATE.start_main_~#array2~0#1.offset| (- 17179869184)) (+ (select .cse33 (+ .cse34 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (select .cse33 (+ .cse35 |c_ULTIMATE.start_main_~#array2~0#1.offset| (- 17179869184)))))))) (let ((.cse29 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse31) .cse32)) |c_ULTIMATE.start_main_~#array2~0#1.base| .cse30) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse29 .cse3) (select .cse29 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse29 .cse7) (select .cse30 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse30 .cse5) |c_ULTIMATE.start_main_~sum~0#1| (select .cse30 .cse6)))))) 0))))) (forall ((|aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| Int) (|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_101_104| Int) (|aux_div_ULTIMATE.start_main_~index~0#1_101| Int)) (let ((.cse48 (* 4294967296 |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|)) (.cse49 (* 4294967296 |aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_101_104|))) (let ((.cse38 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse48 .cse49)) (.cse40 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse48)) (.cse39 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse48 .cse49 (* 4294967296 |aux_div_ULTIMATE.start_main_~index~0#1_101|)))) (or (< .cse15 .cse38) (< .cse39 .cse18) (<= 4294967296 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) (< .cse1 .cse40) (= (let ((.cse46 (* (mod (+ |c_ULTIMATE.start_main_~pivot~0#1| |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) 4294967296) 4)) (.cse47 (* (mod (+ .cse14 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) 4294967296) 4))) (let ((.cse43 (* (mod |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| 4294967296) 4)) (.cse44 (+ (select .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse46)) (select .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse47))))) (let ((.cse41 (let ((.cse45 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse43 (- 17179869184)) .cse44)) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (store .cse45 (+ .cse43 |c_ULTIMATE.start_main_~#array2~0#1.offset| (- 17179869184)) (+ (select .cse45 (+ .cse46 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (select .cse45 (+ .cse47 |c_ULTIMATE.start_main_~#array2~0#1.offset|))))))) (let ((.cse42 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse43) .cse44)) |c_ULTIMATE.start_main_~#array2~0#1.base| .cse41) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse41 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse41 .cse6) (select .cse42 .cse3) (select .cse42 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse42 .cse7) (select .cse41 .cse5) |c_ULTIMATE.start_main_~sum~0#1|))))) 0) (< .cse38 .cse20) (<= |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| 2147483647) (< .cse40 .cse28) (<= .cse21 .cse39))))) (forall ((|aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| Int) (|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_101_104| Int) (|aux_div_ULTIMATE.start_main_~index~0#1_101| Int)) (let ((.cse60 (* 4294967296 |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|)) (.cse61 (* 4294967296 |aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_101_104|))) (let ((.cse50 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse60 .cse61)) (.cse52 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse60)) (.cse51 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse60 .cse61 (* 4294967296 |aux_div_ULTIMATE.start_main_~index~0#1_101|)))) (or (<= .cse50 .cse15) (< |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| 0) (< .cse51 .cse18) (< 2147483647 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) (< .cse1 .cse52) (<= .cse27 .cse50) (= (let ((.cse57 (* (mod |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| 4294967296) 4)) (.cse59 (* (mod (+ .cse14 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) 4294967296) 4)) (.cse58 (* (mod (+ |c_ULTIMATE.start_main_~pivot~0#1| |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) 4294967296) 4))) (let ((.cse55 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse57) (+ (select .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse59 (- 17179869184))) (select .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse58))))))) (let ((.cse54 (let ((.cse56 (select .cse55 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (store .cse56 (+ .cse57 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (+ (select .cse56 (+ .cse58 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (select .cse56 (+ .cse59 |c_ULTIMATE.start_main_~#array2~0#1.offset| (- 17179869184)))))))) (let ((.cse53 (select (store .cse55 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse54) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse53 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse54 .cse6) (select .cse54 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse54 .cse5) |c_ULTIMATE.start_main_~sum~0#1| (select .cse53 .cse3) (select .cse53 .cse7)))))) 0) (< .cse52 .cse28) (<= .cse21 .cse51))))) (forall ((|aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| Int) (|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_101_104| Int) (|aux_div_ULTIMATE.start_main_~index~0#1_101| Int)) (let ((.cse73 (* 4294967296 |aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_101_104|)) (.cse72 (* 4294967296 |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|))) (let ((.cse62 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse72)) (.cse63 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse72 .cse73)) (.cse64 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse72 .cse73 (* 4294967296 |aux_div_ULTIMATE.start_main_~index~0#1_101|)))) (or (<= .cse62 .cse1) (< .cse15 .cse63) (< .cse64 .cse18) (<= .cse19 .cse62) (<= 4294967296 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) (= (let ((.cse70 (* (mod (+ |c_ULTIMATE.start_main_~pivot~0#1| |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) 4294967296) 4)) (.cse71 (* (mod (+ .cse14 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) 4294967296) 4))) (let ((.cse67 (* (mod |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| 4294967296) 4)) (.cse68 (+ (select .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse70 (- 17179869184))) (select .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse71))))) (let ((.cse65 (let ((.cse69 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse67 (- 17179869184)) .cse68)) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (store .cse69 (+ .cse67 |c_ULTIMATE.start_main_~#array2~0#1.offset| (- 17179869184)) (+ (select .cse69 (+ .cse70 |c_ULTIMATE.start_main_~#array2~0#1.offset| (- 17179869184))) (select .cse69 (+ .cse71 |c_ULTIMATE.start_main_~#array2~0#1.offset|))))))) (let ((.cse66 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse67) .cse68)) |c_ULTIMATE.start_main_~#array2~0#1.base| .cse65) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse65 .cse5) (select .cse66 .cse3) (select .cse65 |c_ULTIMATE.start_main_~#array2~0#1.offset|) |c_ULTIMATE.start_main_~sum~0#1| (select .cse66 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse66 .cse7) (select .cse65 .cse6)))))) 0) (< .cse63 .cse20) (<= |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| 2147483647) (<= .cse21 .cse64))))) (forall ((|aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| Int) (|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_101_104| Int) (|aux_div_ULTIMATE.start_main_~index~0#1_101| Int)) (let ((.cse84 (* 4294967296 |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|)) (.cse85 (* 4294967296 |aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_101_104|))) (let ((.cse74 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse84 .cse85)) (.cse76 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse84)) (.cse75 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse84 .cse85 (* 4294967296 |aux_div_ULTIMATE.start_main_~index~0#1_101|)))) (or (< .cse15 .cse74) (< |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| 0) (< .cse75 .cse18) (< 2147483647 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) (< .cse1 .cse76) (< .cse74 .cse20) (< .cse76 .cse28) (<= .cse21 .cse75) (= (let ((.cse81 (* (mod |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| 4294967296) 4)) (.cse83 (* (mod (+ |c_ULTIMATE.start_main_~pivot~0#1| |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) 4294967296) 4)) (.cse82 (* (mod (+ .cse14 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) 4294967296) 4))) (let ((.cse79 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse81) (+ (select .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse83)) (select .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse82))))))) (let ((.cse78 (let ((.cse80 (select .cse79 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (store .cse80 (+ .cse81 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (+ (select .cse80 (+ .cse82 |c_ULTIMATE.start_main_~#array2~0#1.offset|)) (select .cse80 (+ .cse83 |c_ULTIMATE.start_main_~#array2~0#1.offset|))))))) (let ((.cse77 (select (store .cse79 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse78) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse77 .cse7) (select .cse77 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse78 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (select .cse77 .cse3) (select .cse78 .cse6) (select .cse78 .cse5) |c_ULTIMATE.start_main_~sum~0#1|))))) 0))))) (forall ((|aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| Int) (|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_101_104| Int) (|aux_div_ULTIMATE.start_main_~index~0#1_101| Int)) (let ((.cse97 (* 4294967296 |aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_101_104|)) (.cse96 (* 4294967296 |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|))) (let ((.cse86 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse96)) (.cse87 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse96 .cse97)) (.cse88 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse96 .cse97 (* 4294967296 |aux_div_ULTIMATE.start_main_~index~0#1_101|)))) (or (<= .cse86 .cse1) (<= .cse87 .cse15) (< .cse88 .cse18) (<= .cse19 .cse86) (<= 4294967296 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) (<= .cse27 .cse87) (<= |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| 2147483647) (<= .cse21 .cse88) (= (let ((.cse94 (* (mod (+ .cse14 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) 4294967296) 4)) (.cse95 (* (mod (+ |c_ULTIMATE.start_main_~pivot~0#1| |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) 4294967296) 4))) (let ((.cse91 (* (mod |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| 4294967296) 4)) (.cse92 (+ (select .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse94 (- 17179869184))) (select .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse95 (- 17179869184)))))) (let ((.cse89 (let ((.cse93 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse91 (- 17179869184)) .cse92)) |c_ULTIMATE.start_main_~#array2~0#1.base|))) (store .cse93 (+ .cse91 |c_ULTIMATE.start_main_~#array2~0#1.offset| (- 17179869184)) (+ (select .cse93 (+ .cse94 |c_ULTIMATE.start_main_~#array2~0#1.offset| (- 17179869184))) (select .cse93 (+ .cse95 |c_ULTIMATE.start_main_~#array2~0#1.offset| (- 17179869184)))))))) (let ((.cse90 (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse91) .cse92)) |c_ULTIMATE.start_main_~#array2~0#1.base| .cse89) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse89 .cse6) (select .cse90 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse90 .cse3) (select .cse90 .cse7) |c_ULTIMATE.start_main_~sum~0#1| (select .cse89 .cse5) (select .cse89 |c_ULTIMATE.start_main_~#array2~0#1.offset|)))))) 0))))) (forall ((|aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| Int) (|aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| Int) (|aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_101_104| Int) (|aux_div_ULTIMATE.start_main_~index~0#1_101| Int)) (let ((.cse109 (* 4294967296 |aux_div_aux_mod_ULTIMATE.start_main_~index~0#1_101_104|)) (.cse108 (* 4294967296 |aux_div_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|))) (let ((.cse98 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse108)) (.cse99 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse108 .cse109)) (.cse100 (+ |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| .cse108 .cse109 (* 4294967296 |aux_div_ULTIMATE.start_main_~index~0#1_101|)))) (or (<= .cse98 .cse1) (<= .cse99 .cse15) (< |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| 0) (< .cse100 .cse18) (<= .cse19 .cse98) (< 2147483647 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) (= (let ((.cse105 (* (mod |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125| 4294967296) 4)) (.cse107 (* (mod (+ .cse14 |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) 4294967296) 4)) (.cse106 (* (mod (+ |c_ULTIMATE.start_main_~pivot~0#1| |aux_mod_aux_mod_aux_mod_ULTIMATE.start_main_~index~0#1_101_104_125|) 4294967296) 4))) (let ((.cse103 (store |c_#memory_int| |c_ULTIMATE.start_main_~#array1~0#1.base| (store .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse105) (+ (select .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse107 (- 17179869184))) (select .cse13 (+ |c_ULTIMATE.start_main_~#array1~0#1.offset| .cse106 (- 17179869184)))))))) (let ((.cse102 (let ((.cse104 (select .cse103 |c_ULTIMATE.start_main_~#array2~0#1.base|))) (store .cse104 (+ .cse105 |c_ULTIMATE.start_main_~#array2~0#1.offset|) (+ (select .cse104 (+ .cse106 |c_ULTIMATE.start_main_~#array2~0#1.offset| (- 17179869184))) (select .cse104 (+ .cse107 |c_ULTIMATE.start_main_~#array2~0#1.offset| (- 17179869184)))))))) (let ((.cse101 (select (store .cse103 |c_ULTIMATE.start_main_~#array2~0#1.base| .cse102) |c_ULTIMATE.start_main_~#array1~0#1.base|))) (+ (select .cse101 |c_ULTIMATE.start_main_~#array1~0#1.offset|) (select .cse101 .cse3) (select .cse102 .cse5) |c_ULTIMATE.start_main_~sum~0#1| (select .cse101 .cse7) (select .cse102 .cse6) (select .cse102 |c_ULTIMATE.start_main_~#array2~0#1.offset|)))))) 0) (<= .cse27 .cse99) (<= .cse21 .cse100)))))))) (< 3 c_~ARR_SIZE~0) (not (< 0 c_~ARR_SIZE~0))) is different from true [2023-02-15 18:52:31,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:52:31,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093850718] [2023-02-15 18:52:31,931 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:52:31,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803109759] [2023-02-15 18:52:31,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803109759] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 18:52:31,931 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-15 18:52:31,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2023-02-15 18:52:31,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813410949] [2023-02-15 18:52:31,932 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-15 18:52:31,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-02-15 18:52:31,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:52:31,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-02-15 18:52:31,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1017, Unknown=1, NotChecked=66, Total=1260 [2023-02-15 18:52:31,934 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 25 states, 24 states have (on average 1.25) internal successors, (30), 22 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 18:52:43,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-15 18:52:45,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-02-15 18:52:47,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:52:47,975 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2023-02-15 18:52:47,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-02-15 18:52:47,976 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 1.25) internal successors, (30), 22 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 39 [2023-02-15 18:52:47,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:52:47,977 INFO L225 Difference]: With dead ends: 61 [2023-02-15 18:52:47,977 INFO L226 Difference]: Without dead ends: 57 [2023-02-15 18:52:47,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 651 ImplicationChecksByTransitivity, 78.1s TimeCoverageRelationStatistics Valid=338, Invalid=1826, Unknown=2, NotChecked=90, Total=2256 [2023-02-15 18:52:47,978 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 37 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-02-15 18:52:47,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 201 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 518 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2023-02-15 18:52:47,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-02-15 18:52:47,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 48. [2023-02-15 18:52:47,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 39 states have (on average 1.1025641025641026) internal successors, (43), 39 states have internal predecessors, (43), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 18:52:47,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2023-02-15 18:52:47,992 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 39 [2023-02-15 18:52:47,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:52:47,992 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2023-02-15 18:52:47,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 1.25) internal successors, (30), 22 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-02-15 18:52:47,992 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2023-02-15 18:52:47,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-02-15 18:52:47,993 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:52:47,993 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:52:48,003 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 18:52:48,194 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 18:52:48,194 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:52:48,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:52:48,195 INFO L85 PathProgramCache]: Analyzing trace with hash -883530364, now seen corresponding path program 4 times [2023-02-15 18:52:48,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:52:48,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421917209] [2023-02-15 18:52:48,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:52:48,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:52:48,204 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:52:48,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2090481325] [2023-02-15 18:52:48,207 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 18:52:48,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:52:48,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:52:48,209 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 18:52:48,211 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 18:52:48,279 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 18:52:48,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 18:52:48,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-15 18:52:48,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:52:48,377 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-15 18:52:48,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 18:52:48,447 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-15 18:52:48,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 18:52:48,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421917209] [2023-02-15 18:52:48,447 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-15 18:52:48,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090481325] [2023-02-15 18:52:48,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090481325] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 18:52:48,448 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-15 18:52:48,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2023-02-15 18:52:48,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625717754] [2023-02-15 18:52:48,448 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-15 18:52:48,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-15 18:52:48,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 18:52:48,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-15 18:52:48,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-02-15 18:52:48,450 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-15 18:52:48,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 18:52:48,601 INFO L93 Difference]: Finished difference Result 107 states and 117 transitions. [2023-02-15 18:52:48,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 18:52:48,601 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2023-02-15 18:52:48,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 18:52:48,602 INFO L225 Difference]: With dead ends: 107 [2023-02-15 18:52:48,602 INFO L226 Difference]: Without dead ends: 93 [2023-02-15 18:52:48,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 62 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2023-02-15 18:52:48,603 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 76 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 18:52:48,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 113 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 18:52:48,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-02-15 18:52:48,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 76. [2023-02-15 18:52:48,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 61 states have (on average 1.098360655737705) internal successors, (67), 61 states have internal predecessors, (67), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-02-15 18:52:48,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2023-02-15 18:52:48,624 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 41 [2023-02-15 18:52:48,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 18:52:48,625 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2023-02-15 18:52:48,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-15 18:52:48,625 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2023-02-15 18:52:48,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-02-15 18:52:48,626 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 18:52:48,626 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 18:52:48,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-15 18:52:48,829 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 18:52:48,829 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 18:52:48,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 18:52:48,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1451589122, now seen corresponding path program 5 times [2023-02-15 18:52:48,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 18:52:48,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917382093] [2023-02-15 18:52:48,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 18:52:48,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 18:52:48,839 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-15 18:52:48,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [117797862] [2023-02-15 18:52:48,840 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 18:52:48,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 18:52:48,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 18:52:48,841 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 18:52:48,865 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 18:52:50,070 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2023-02-15 18:52:50,070 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 18:52:50,073 WARN L261 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 110 conjunts are in the unsatisfiable core [2023-02-15 18:52:50,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 18:52:50,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-15 18:52:50,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2023-02-15 18:52:50,121 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2023-02-15 18:52:50,125 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 31 [2023-02-15 18:52:50,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 46 [2023-02-15 18:52:50,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2023-02-15 18:52:50,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 51 [2023-02-15 18:52:50,326 INFO L321 Elim1Store]: treesize reduction 33, result has 13.2 percent of original size [2023-02-15 18:52:50,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 87 [2023-02-15 18:52:50,330 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 45 [2023-02-15 18:52:50,346 INFO L321 Elim1Store]: treesize reduction 51, result has 8.9 percent of original size [2023-02-15 18:52:50,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 74 [2023-02-15 18:52:50,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 36 [2023-02-15 18:52:50,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,370 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-02-15 18:52:50,407 INFO L321 Elim1Store]: treesize reduction 25, result has 16.7 percent of original size [2023-02-15 18:52:50,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 43 [2023-02-15 18:52:50,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-02-15 18:52:50,555 INFO L321 Elim1Store]: treesize reduction 41, result has 10.9 percent of original size [2023-02-15 18:52:50,556 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 228 treesize of output 168 [2023-02-15 18:52:50,579 INFO L321 Elim1Store]: treesize reduction 68, result has 6.8 percent of original size [2023-02-15 18:52:50,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 190 treesize of output 173 [2023-02-15 18:52:50,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 112 [2023-02-15 18:52:50,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-02-15 18:52:50,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:50,614 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 51 [2023-02-15 18:52:50,635 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 50 [2023-02-15 18:52:50,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-02-15 18:52:52,068 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-02-15 18:52:52,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 1111 treesize of output 1028 [2023-02-15 18:52:52,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,450 INFO L217 Elim1Store]: Index analysis took 322 ms [2023-02-15 18:52:52,525 INFO L321 Elim1Store]: treesize reduction 122, result has 0.8 percent of original size [2023-02-15 18:52:52,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 39 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 6 case distinctions, treesize of input 447 treesize of output 538 [2023-02-15 18:52:52,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 133 [2023-02-15 18:52:52,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,783 INFO L217 Elim1Store]: Index analysis took 147 ms [2023-02-15 18:52:52,833 INFO L321 Elim1Store]: treesize reduction 122, result has 0.8 percent of original size [2023-02-15 18:52:52,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 39 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 6 case distinctions, treesize of input 580 treesize of output 487 [2023-02-15 18:52:52,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:52,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 386 treesize of output 294 [2023-02-15 18:52:53,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:53,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:53,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:53,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:53,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:53,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:53,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:53,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:53,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:53,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:53,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:53,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:53,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:53,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:53,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:53,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:53,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:53,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 18:52:53,360 INFO L217 Elim1Store]: Index analysis took 176 ms [2023-02-15 18:52:53,505 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 18:52:53,660 INFO L321 Elim1Store]: treesize reduction 85, result has 26.1 percent of original size [2023-02-15 18:52:53,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 39 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 6 case distinctions, treesize of input 207 treesize of output 187 [2023-02-15 18:52:53,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 13 [2023-02-15 18:52:54,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 13 [2023-02-15 18:53:04,397 WARN L233 SmtUtils]: Spent 9.09s on a formula simplification. DAG size of input: 132 DAG size of output: 130 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 18:53:26,519 WARN L233 SmtUtils]: Spent 8.29s on a formula simplification that was a NOOP. DAG size: 138 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 18:53:35,377 WARN L233 SmtUtils]: Spent 6.33s on a formula simplification that was a NOOP. DAG size: 133 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)