./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array20_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e1ff0e6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-patterns/array20_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 4595fcce7ed27c87f4b36557925b67d85fd0fff83d482c199564b06ae0d3b884 --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-14 21:54:12,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 21:54:12,529 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 21:54:12,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 21:54:12,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 21:54:12,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 21:54:12,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 21:54:12,566 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 21:54:12,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 21:54:12,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 21:54:12,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 21:54:12,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 21:54:12,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 21:54:12,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 21:54:12,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 21:54:12,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 21:54:12,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 21:54:12,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 21:54:12,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 21:54:12,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 21:54:12,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 21:54:12,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 21:54:12,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 21:54:12,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 21:54:12,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 21:54:12,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 21:54:12,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 21:54:12,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 21:54:12,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 21:54:12,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 21:54:12,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 21:54:12,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 21:54:12,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 21:54:12,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 21:54:12,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 21:54:12,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 21:54:12,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 21:54:12,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 21:54:12,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 21:54:12,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 21:54:12,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 21:54:12,600 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-14 21:54:12,621 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 21:54:12,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 21:54:12,622 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 21:54:12,622 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 21:54:12,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 21:54:12,622 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 21:54:12,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 21:54:12,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 21:54:12,623 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 21:54:12,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 21:54:12,624 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-14 21:54:12,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 21:54:12,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-14 21:54:12,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 21:54:12,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 21:54:12,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 21:54:12,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 21:54:12,625 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-14 21:54:12,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 21:54:12,625 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 21:54:12,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 21:54:12,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 21:54:12,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 21:54:12,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 21:54:12,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 21:54:12,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 21:54:12,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 21:54:12,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 21:54:12,627 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 21:54:12,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-14 21:54:12,627 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 21:54:12,627 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 21:54:12,627 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 21:54:12,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 21:54:12,627 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 21:54:12,628 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4595fcce7ed27c87f4b36557925b67d85fd0fff83d482c199564b06ae0d3b884 [2023-02-14 21:54:12,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 21:54:12,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 21:54:12,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 21:54:12,837 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 21:54:12,837 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 21:54:12,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array20_pattern.c [2023-02-14 21:54:13,730 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 21:54:13,884 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 21:54:13,884 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array20_pattern.c [2023-02-14 21:54:13,888 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9026ed790/fed406688dd2436e928791548011171b/FLAG360d3b7ba [2023-02-14 21:54:13,896 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9026ed790/fed406688dd2436e928791548011171b [2023-02-14 21:54:13,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 21:54:13,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 21:54:13,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 21:54:13,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 21:54:13,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 21:54:13,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 09:54:13" (1/1) ... [2023-02-14 21:54:13,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dcb226c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:54:13, skipping insertion in model container [2023-02-14 21:54:13,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 09:54:13" (1/1) ... [2023-02-14 21:54:13,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 21:54:13,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 21:54:14,012 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/array20_pattern.c[1444,1457] [2023-02-14 21:54:14,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 21:54:14,049 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 21:54:14,057 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/array20_pattern.c[1444,1457] [2023-02-14 21:54:14,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 21:54:14,087 INFO L208 MainTranslator]: Completed translation [2023-02-14 21:54:14,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:54:14 WrapperNode [2023-02-14 21:54:14,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 21:54:14,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 21:54:14,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 21:54:14,088 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 21:54:14,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:54:14" (1/1) ... [2023-02-14 21:54:14,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:54:14" (1/1) ... [2023-02-14 21:54:14,120 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 102 [2023-02-14 21:54:14,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 21:54:14,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 21:54:14,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 21:54:14,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 21:54:14,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:54:14" (1/1) ... [2023-02-14 21:54:14,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:54:14" (1/1) ... [2023-02-14 21:54:14,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:54:14" (1/1) ... [2023-02-14 21:54:14,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:54:14" (1/1) ... [2023-02-14 21:54:14,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:54:14" (1/1) ... [2023-02-14 21:54:14,147 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:54:14" (1/1) ... [2023-02-14 21:54:14,150 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:54:14" (1/1) ... [2023-02-14 21:54:14,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:54:14" (1/1) ... [2023-02-14 21:54:14,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 21:54:14,154 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 21:54:14,155 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 21:54:14,155 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 21:54:14,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:54:14" (1/1) ... [2023-02-14 21:54:14,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 21:54:14,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 21:54:14,190 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-14 21:54:14,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-14 21:54:14,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-14 21:54:14,237 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-14 21:54:14,237 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-14 21:54:14,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-14 21:54:14,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-14 21:54:14,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-14 21:54:14,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 21:54:14,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 21:54:14,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-14 21:54:14,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-14 21:54:14,292 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 21:54:14,294 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 21:54:14,445 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 21:54:14,448 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 21:54:14,448 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2023-02-14 21:54:14,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 09:54:14 BoogieIcfgContainer [2023-02-14 21:54:14,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 21:54:14,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 21:54:14,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 21:54:14,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 21:54:14,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 09:54:13" (1/3) ... [2023-02-14 21:54:14,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@802a637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 09:54:14, skipping insertion in model container [2023-02-14 21:54:14,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 09:54:14" (2/3) ... [2023-02-14 21:54:14,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@802a637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 09:54:14, skipping insertion in model container [2023-02-14 21:54:14,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 09:54:14" (3/3) ... [2023-02-14 21:54:14,455 INFO L112 eAbstractionObserver]: Analyzing ICFG array20_pattern.c [2023-02-14 21:54:14,465 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 21:54:14,465 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-14 21:54:14,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 21:54:14,494 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;@50ad2623, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 21:54:14,494 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-14 21:54:14,496 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 28 states have internal predecessors, (43), 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) [2023-02-14 21:54:14,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-14 21:54:14,501 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 21:54:14,501 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 21:54:14,501 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 21:54:14,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 21:54:14,504 INFO L85 PathProgramCache]: Analyzing trace with hash -2132324569, now seen corresponding path program 1 times [2023-02-14 21:54:14,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 21:54:14,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421501654] [2023-02-14 21:54:14,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 21:54:14,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 21:54:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 21:54:14,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 21:54:14,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421501654] [2023-02-14 21:54:14,607 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-14 21:54:14,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344689488] [2023-02-14 21:54:14,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 21:54:14,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 21:54:14,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 21:54:14,622 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 21:54:14,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-14 21:54:14,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 21:54:14,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-14 21:54:14,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 21:54:14,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 21:54:14,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 21:54:14,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344689488] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 21:54:14,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 21:54:14,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-14 21:54:14,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032131220] [2023-02-14 21:54:14,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 21:54:14,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-14 21:54:14,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 21:54:14,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-14 21:54:14,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-14 21:54:14,762 INFO L87 Difference]: Start difference. First operand has 33 states, 27 states have (on average 1.5925925925925926) internal successors, (43), 28 states have internal predecessors, (43), 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) [2023-02-14 21:54:14,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 21:54:14,776 INFO L93 Difference]: Finished difference Result 63 states and 97 transitions. [2023-02-14 21:54:14,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-14 21:54:14,778 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 [2023-02-14 21:54:14,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 21:54:14,782 INFO L225 Difference]: With dead ends: 63 [2023-02-14 21:54:14,782 INFO L226 Difference]: Without dead ends: 29 [2023-02-14 21:54:14,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-14 21:54:14,787 INFO L413 NwaCegarLoop]: 41 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, 41 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 21:54:14,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 21:54:14,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-02-14 21:54:14,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-02-14 21:54:14,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 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) [2023-02-14 21:54:14,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 37 transitions. [2023-02-14 21:54:14,811 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 37 transitions. Word has length 15 [2023-02-14 21:54:14,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 21:54:14,812 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 37 transitions. [2023-02-14 21:54:14,812 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) [2023-02-14 21:54:14,812 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2023-02-14 21:54:14,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-14 21:54:14,814 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 21:54:14,815 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] [2023-02-14 21:54:14,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-14 21:54:15,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-02-14 21:54:15,021 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 21:54:15,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 21:54:15,021 INFO L85 PathProgramCache]: Analyzing trace with hash 1872922357, now seen corresponding path program 1 times [2023-02-14 21:54:15,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 21:54:15,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069723825] [2023-02-14 21:54:15,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 21:54:15,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 21:54:15,057 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 21:54:15,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1889463941] [2023-02-14 21:54:15,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 21:54:15,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 21:54:15,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 21:54:15,077 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 21:54:15,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-14 21:54:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 21:54:15,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-14 21:54:15,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 21:54:15,191 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-14 21:54:15,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 21:54:15,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 21:54:15,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069723825] [2023-02-14 21:54:15,193 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-14 21:54:15,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889463941] [2023-02-14 21:54:15,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889463941] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 21:54:15,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 21:54:15,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 21:54:15,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535138825] [2023-02-14 21:54:15,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 21:54:15,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 21:54:15,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 21:54:15,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 21:54:15,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 21:54:15,195 INFO L87 Difference]: Start difference. First operand 29 states and 37 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2023-02-14 21:54:15,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 21:54:15,212 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2023-02-14 21:54:15,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 21:54:15,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 30 [2023-02-14 21:54:15,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 21:54:15,213 INFO L225 Difference]: With dead ends: 36 [2023-02-14 21:54:15,213 INFO L226 Difference]: Without dead ends: 32 [2023-02-14 21:54:15,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-14 21:54:15,214 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 12 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 84 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 [2023-02-14 21:54:15,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 84 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 21:54:15,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-14 21:54:15,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-02-14 21:54:15,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 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) [2023-02-14 21:54:15,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2023-02-14 21:54:15,219 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 30 [2023-02-14 21:54:15,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 21:54:15,220 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 41 transitions. [2023-02-14 21:54:15,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2023-02-14 21:54:15,220 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2023-02-14 21:54:15,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-14 21:54:15,221 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 21:54:15,221 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, 1, 1, 1, 1] [2023-02-14 21:54:15,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-14 21:54:15,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-02-14 21:54:15,429 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 21:54:15,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 21:54:15,430 INFO L85 PathProgramCache]: Analyzing trace with hash 212512359, now seen corresponding path program 1 times [2023-02-14 21:54:15,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 21:54:15,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936653661] [2023-02-14 21:54:15,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 21:54:15,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 21:54:15,454 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 21:54:15,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1515700989] [2023-02-14 21:54:15,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 21:54:15,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 21:54:15,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 21:54:15,456 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 21:54:15,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-14 21:54:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 21:54:15,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 21:54:15,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 21:54:15,548 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-14 21:54:15,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 21:54:15,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 21:54:15,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936653661] [2023-02-14 21:54:15,548 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-14 21:54:15,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515700989] [2023-02-14 21:54:15,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515700989] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 21:54:15,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 21:54:15,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-14 21:54:15,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997086871] [2023-02-14 21:54:15,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 21:54:15,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-14 21:54:15,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 21:54:15,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-14 21:54:15,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-14 21:54:15,550 INFO L87 Difference]: Start difference. First operand 32 states and 41 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-14 21:54:15,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 21:54:15,613 INFO L93 Difference]: Finished difference Result 67 states and 86 transitions. [2023-02-14 21:54:15,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 21:54:15,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2023-02-14 21:54:15,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 21:54:15,614 INFO L225 Difference]: With dead ends: 67 [2023-02-14 21:54:15,614 INFO L226 Difference]: Without dead ends: 42 [2023-02-14 21:54:15,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-02-14 21:54:15,615 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 21 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 21:54:15,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 92 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 21:54:15,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-14 21:54:15,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 33. [2023-02-14 21:54:15,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 28 states have internal predecessors, (36), 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) [2023-02-14 21:54:15,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2023-02-14 21:54:15,620 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 35 [2023-02-14 21:54:15,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 21:54:15,620 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2023-02-14 21:54:15,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-14 21:54:15,620 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2023-02-14 21:54:15,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-02-14 21:54:15,621 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 21:54:15,621 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, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 21:54:15,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-14 21:54:15,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 21:54:15,827 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 21:54:15,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 21:54:15,827 INFO L85 PathProgramCache]: Analyzing trace with hash -654332553, now seen corresponding path program 1 times [2023-02-14 21:54:15,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 21:54:15,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341730491] [2023-02-14 21:54:15,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 21:54:15,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 21:54:15,837 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 21:54:15,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1873083527] [2023-02-14 21:54:15,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 21:54:15,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 21:54:15,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 21:54:15,838 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 21:54:15,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-14 21:54:15,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 21:54:15,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 21:54:15,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 21:54:15,931 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-02-14 21:54:15,932 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 21:54:15,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 21:54:15,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341730491] [2023-02-14 21:54:15,933 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-14 21:54:15,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873083527] [2023-02-14 21:54:15,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873083527] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 21:54:15,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 21:54:15,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-14 21:54:15,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894520571] [2023-02-14 21:54:15,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 21:54:15,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-14 21:54:15,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 21:54:15,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-14 21:54:15,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-14 21:54:15,936 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-14 21:54:15,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 21:54:15,976 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2023-02-14 21:54:15,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 21:54:15,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-02-14 21:54:15,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 21:54:15,980 INFO L225 Difference]: With dead ends: 64 [2023-02-14 21:54:15,980 INFO L226 Difference]: Without dead ends: 36 [2023-02-14 21:54:15,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-14 21:54:15,983 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 28 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 21:54:15,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 51 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 21:54:15,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-14 21:54:16,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2023-02-14 21:54:16,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 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) [2023-02-14 21:54:16,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2023-02-14 21:54:16,009 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 38 [2023-02-14 21:54:16,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 21:54:16,009 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2023-02-14 21:54:16,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-02-14 21:54:16,009 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2023-02-14 21:54:16,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-02-14 21:54:16,011 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 21:54:16,011 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 21:54:16,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-14 21:54:16,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 21:54:16,216 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 21:54:16,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 21:54:16,217 INFO L85 PathProgramCache]: Analyzing trace with hash 579061941, now seen corresponding path program 1 times [2023-02-14 21:54:16,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 21:54:16,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125116819] [2023-02-14 21:54:16,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 21:54:16,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 21:54:16,227 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 21:54:16,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1774779255] [2023-02-14 21:54:16,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 21:54:16,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 21:54:16,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 21:54:16,229 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 21:54:16,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-14 21:54:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 21:54:16,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 42 conjunts are in the unsatisfiable core [2023-02-14 21:54:16,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 21:54:16,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 139 treesize of output 130 [2023-02-14 21:54:16,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 567 [2023-02-14 21:54:16,686 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-14 21:54:16,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:54:16,695 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:54:16,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:54:16,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:54:16,701 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:54:16,702 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:54:16,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 417 [2023-02-14 21:54:16,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:54:16,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:54:16,730 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:54:16,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 147 [2023-02-14 21:54:16,893 INFO L321 Elim1Store]: treesize reduction 17, result has 15.0 percent of original size [2023-02-14 21:54:16,894 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 28 treesize of output 10 [2023-02-14 21:54:16,920 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-14 21:54:16,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 21:54:17,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 168 [2023-02-14 21:54:17,071 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-14 21:54:17,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 168 treesize of output 733 [2023-02-14 21:54:18,110 INFO L321 Elim1Store]: treesize reduction 1003, result has 32.1 percent of original size [2023-02-14 21:54:18,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 5 new quantified variables, introduced 17 case distinctions, treesize of input 1361 treesize of output 3086 [2023-02-14 21:54:30,201 INFO L217 Elim1Store]: Index analysis took 1066 ms [2023-02-14 21:54:30,285 INFO L321 Elim1Store]: treesize reduction 282, result has 0.4 percent of original size [2023-02-14 21:54:30,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 9 case distinctions, treesize of input 652 treesize of output 1134 [2023-02-14 21:54:32,472 INFO L217 Elim1Store]: Index analysis took 1453 ms [2023-02-14 21:54:32,543 INFO L321 Elim1Store]: treesize reduction 357, result has 0.3 percent of original size [2023-02-14 21:54:32,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 11 case distinctions, treesize of input 917 treesize of output 2653 [2023-02-14 21:54:33,880 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:54:33,906 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:54:33,908 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:54:34,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:54:34,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:54:34,517 INFO L217 Elim1Store]: Index analysis took 638 ms [2023-02-14 21:54:34,601 INFO L321 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2023-02-14 21:54:34,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 652 treesize of output 1134 [2023-02-14 21:54:35,325 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:54:35,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:54:35,967 INFO L217 Elim1Store]: Index analysis took 690 ms [2023-02-14 21:54:35,987 INFO L321 Elim1Store]: treesize reduction 294, result has 0.3 percent of original size [2023-02-14 21:54:35,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 11 case distinctions, treesize of input 917 treesize of output 2653 [2023-02-14 21:54:37,261 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:54:37,265 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:54:37,673 INFO L321 Elim1Store]: treesize reduction 108, result has 60.3 percent of original size [2023-02-14 21:54:37,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 2605 treesize of output 3966 [2023-02-14 21:54:39,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:54:39,514 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:54:39,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:54:39,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:54:39,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:54:39,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:54:39,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:54:39,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:54:39,574 INFO L321 Elim1Store]: treesize reduction 68, result has 1.4 percent of original size [2023-02-14 21:54:39,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 826 treesize of output 2584 [2023-02-14 21:54:40,860 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:54:40,861 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:54:40,864 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:54:40,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:54:40,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:54:41,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:54:41,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:54:41,066 INFO L217 Elim1Store]: Index analysis took 206 ms [2023-02-14 21:54:41,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 652 treesize of output 1134 [2023-02-14 21:55:09,086 INFO L321 Elim1Store]: treesize reduction 364, result has 64.3 percent of original size [2023-02-14 21:55:09,087 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 7 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 6890 treesize of output 11491 [2023-02-14 21:56:40,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:56:41,105 INFO L217 Elim1Store]: Index analysis took 344 ms [2023-02-14 21:56:41,676 INFO L321 Elim1Store]: treesize reduction 488, result has 12.4 percent of original size [2023-02-14 21:56:41,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 1652 treesize of output 2894 [2023-02-14 21:56:49,393 INFO L321 Elim1Store]: treesize reduction 546, result has 47.1 percent of original size [2023-02-14 21:56:49,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 18 case distinctions, treesize of input 7656 treesize of output 13452 [2023-02-14 21:57:17,093 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:57:17,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:17,095 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:57:17,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:17,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:17,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:17,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:17,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:17,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 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 7548 treesize of output 9698 [2023-02-14 21:57:19,096 INFO L321 Elim1Store]: treesize reduction 456, result has 0.2 percent of original size [2023-02-14 21:57:19,097 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 16 case distinctions, treesize of input 2487 treesize of output 4638 [2023-02-14 21:57:20,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:20,499 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:57:20,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:20,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:20,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:20,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:20,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:20,528 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 7596 treesize of output 9724 [2023-02-14 21:57:33,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:33,019 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:57:33,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:33,021 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:57:33,021 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:57:33,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:33,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:34,127 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-14 21:57:34,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 5 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 5365 treesize of output 11694 [2023-02-14 21:57:40,127 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:57:40,128 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:57:40,128 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:57:40,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:40,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:40,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:40,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:40,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:40,310 INFO L217 Elim1Store]: Index analysis took 182 ms [2023-02-14 21:57:40,312 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 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 2555 treesize of output 4887 [2023-02-14 21:57:41,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:41,894 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:57:41,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:41,895 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:57:41,896 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:57:41,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:41,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:41,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:41,995 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-14 21:57:41,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 4 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 1851 treesize of output 6223 [2023-02-14 21:57:57,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:57,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:57,837 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:57:57,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:57,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:57,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:57,841 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 11550 treesize of output 11258 [2023-02-14 21:57:58,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:58,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:58,646 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:57:58,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:58,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:58,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:58,652 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 371 treesize of output 79 [2023-02-14 21:57:58,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:58,915 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:57:58,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:58,917 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:57:58,918 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:57:58,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:58,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:57:59,129 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-14 21:57:59,130 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 888 treesize of output 5409 [2023-02-14 21:58:01,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:58:01,763 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:58:01,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:58:01,765 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:58:01,765 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 21:58:01,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:58:01,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:58:01,873 INFO L217 Elim1Store]: Index analysis took 109 ms [2023-02-14 21:58:01,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 21:58:01,935 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-14 21:58:01,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 5975 treesize of output 9484 [2023-02-14 21:58:04,984 INFO L321 Elim1Store]: treesize reduction 361, result has 33.3 percent of original size [2023-02-14 21:58:04,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 3 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 12 case distinctions, treesize of input 9326 treesize of output 10281 [2023-02-14 21:58:46,806 WARN L233 SmtUtils]: Spent 13.39s on a formula simplification. DAG size of input: 243 DAG size of output: 173 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-02-14 21:58:46,807 INFO L321 Elim1Store]: treesize reduction 769, result has 77.7 percent of original size [2023-02-14 21:58:46,809 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 8 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 35086 treesize of output 52258