./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 35987657 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-?-3598765 [2022-07-20 21:50:26,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 21:50:26,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 21:50:26,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 21:50:26,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 21:50:26,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 21:50:26,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 21:50:26,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 21:50:26,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 21:50:26,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 21:50:26,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 21:50:26,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 21:50:26,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 21:50:26,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 21:50:26,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 21:50:26,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 21:50:26,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 21:50:26,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 21:50:26,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 21:50:26,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 21:50:26,447 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 21:50:26,448 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 21:50:26,449 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 21:50:26,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 21:50:26,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 21:50:26,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 21:50:26,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 21:50:26,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 21:50:26,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 21:50:26,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 21:50:26,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 21:50:26,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 21:50:26,460 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 21:50:26,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 21:50:26,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 21:50:26,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 21:50:26,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 21:50:26,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 21:50:26,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 21:50:26,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 21:50:26,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 21:50:26,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 21:50:26,467 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-20 21:50:26,498 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 21:50:26,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 21:50:26,498 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 21:50:26,499 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 21:50:26,499 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 21:50:26,499 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 21:50:26,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 21:50:26,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 21:50:26,500 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 21:50:26,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 21:50:26,502 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-20 21:50:26,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 21:50:26,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-20 21:50:26,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 21:50:26,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 21:50:26,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 21:50:26,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 21:50:26,503 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-20 21:50:26,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 21:50:26,505 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 21:50:26,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 21:50:26,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 21:50:26,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 21:50:26,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 21:50:26,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 21:50:26,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 21:50:26,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 21:50:26,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 21:50:26,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 21:50:26,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 21:50:26,507 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 21:50:26,507 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 21:50:26,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 21:50:26,508 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85b55cdd1f26353e63ecc189ba28ba899672edc569fe3ef3f04470f2b5e667fa [2022-07-20 21:50:26,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 21:50:26,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 21:50:26,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 21:50:26,787 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 21:50:26,787 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 21:50:26,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array7_pattern.c [2022-07-20 21:50:26,853 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a61fa3c03/cadfa754bc3d42a7b327bc3a10f02ec8/FLAG114a7c0ac [2022-07-20 21:50:27,262 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 21:50:27,262 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array7_pattern.c [2022-07-20 21:50:27,267 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a61fa3c03/cadfa754bc3d42a7b327bc3a10f02ec8/FLAG114a7c0ac [2022-07-20 21:50:27,699 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a61fa3c03/cadfa754bc3d42a7b327bc3a10f02ec8 [2022-07-20 21:50:27,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 21:50:27,702 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 21:50:27,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 21:50:27,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 21:50:27,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 21:50:27,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:50:27" (1/1) ... [2022-07-20 21:50:27,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18c4623d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:27, skipping insertion in model container [2022-07-20 21:50:27,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 09:50:27" (1/1) ... [2022-07-20 21:50:27,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 21:50:27,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 21:50:27,884 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array7_pattern.c[1375,1388] [2022-07-20 21:50:27,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 21:50:27,931 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 21:50:27,942 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array7_pattern.c[1375,1388] [2022-07-20 21:50:27,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 21:50:27,983 INFO L208 MainTranslator]: Completed translation [2022-07-20 21:50:27,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:27 WrapperNode [2022-07-20 21:50:27,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 21:50:27,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 21:50:27,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 21:50:27,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 21:50:27,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:27" (1/1) ... [2022-07-20 21:50:28,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:27" (1/1) ... [2022-07-20 21:50:28,026 INFO L137 Inliner]: procedures = 16, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2022-07-20 21:50:28,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 21:50:28,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 21:50:28,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 21:50:28,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 21:50:28,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:27" (1/1) ... [2022-07-20 21:50:28,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:27" (1/1) ... [2022-07-20 21:50:28,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:27" (1/1) ... [2022-07-20 21:50:28,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:27" (1/1) ... [2022-07-20 21:50:28,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:27" (1/1) ... [2022-07-20 21:50:28,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:27" (1/1) ... [2022-07-20 21:50:28,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:27" (1/1) ... [2022-07-20 21:50:28,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 21:50:28,068 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 21:50:28,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 21:50:28,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 21:50:28,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:27" (1/1) ... [2022-07-20 21:50:28,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 21:50:28,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:50:28,100 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) [2022-07-20 21:50:28,116 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 [2022-07-20 21:50:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 21:50:28,142 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 21:50:28,143 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 21:50:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 21:50:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 21:50:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 21:50:28,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 21:50:28,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 21:50:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 21:50:28,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 21:50:28,220 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 21:50:28,222 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 21:50:28,429 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 21:50:28,434 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 21:50:28,434 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-07-20 21:50:28,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:50:28 BoogieIcfgContainer [2022-07-20 21:50:28,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 21:50:28,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 21:50:28,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 21:50:28,441 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 21:50:28,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 09:50:27" (1/3) ... [2022-07-20 21:50:28,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@971a17e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:50:28, skipping insertion in model container [2022-07-20 21:50:28,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 09:50:27" (2/3) ... [2022-07-20 21:50:28,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@971a17e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 09:50:28, skipping insertion in model container [2022-07-20 21:50:28,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 09:50:28" (3/3) ... [2022-07-20 21:50:28,443 INFO L111 eAbstractionObserver]: Analyzing ICFG array7_pattern.c [2022-07-20 21:50:28,454 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 21:50:28,455 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 21:50:28,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 21:50:28,496 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7e018edd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@734ffb60 [2022-07-20 21:50:28,501 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 21:50:28,508 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) [2022-07-20 21:50:28,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-20 21:50:28,528 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:50:28,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 21:50:28,530 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:50:28,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:50:28,537 INFO L85 PathProgramCache]: Analyzing trace with hash -440982883, now seen corresponding path program 1 times [2022-07-20 21:50:28,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:50:28,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779459582] [2022-07-20 21:50:28,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:50:28,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:50:28,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:28,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 21:50:28,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:28,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-20 21:50:28,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:50:28,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779459582] [2022-07-20 21:50:28,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779459582] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:50:28,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 21:50:28,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-20 21:50:28,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467040253] [2022-07-20 21:50:28,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:50:28,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-20 21:50:28,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:50:28,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-20 21:50:28,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-20 21:50:28,751 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) [2022-07-20 21:50:28,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:50:28,769 INFO L93 Difference]: Finished difference Result 49 states and 71 transitions. [2022-07-20 21:50:28,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-20 21:50:28,772 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 [2022-07-20 21:50:28,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:50:28,778 INFO L225 Difference]: With dead ends: 49 [2022-07-20 21:50:28,779 INFO L226 Difference]: Without dead ends: 22 [2022-07-20 21:50:28,781 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 [2022-07-20 21:50:28,785 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 [2022-07-20 21:50:28,786 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] [2022-07-20 21:50:28,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-07-20 21:50:28,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-07-20 21:50:28,820 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) [2022-07-20 21:50:28,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2022-07-20 21:50:28,822 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 15 [2022-07-20 21:50:28,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:50:28,823 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2022-07-20 21:50:28,823 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) [2022-07-20 21:50:28,823 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-07-20 21:50:28,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-07-20 21:50:28,825 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:50:28,825 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] [2022-07-20 21:50:28,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 21:50:28,825 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:50:28,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:50:28,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1396045698, now seen corresponding path program 1 times [2022-07-20 21:50:28,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:50:28,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327507675] [2022-07-20 21:50:28,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:50:28,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:50:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:28,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 21:50:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:28,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 21:50:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:28,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-20 21:50:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:28,972 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-20 21:50:28,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:50:28,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327507675] [2022-07-20 21:50:28,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327507675] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:50:28,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 21:50:28,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-20 21:50:28,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672570049] [2022-07-20 21:50:28,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:50:28,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-20 21:50:28,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:50:28,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-20 21:50:28,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-20 21:50:28,977 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) [2022-07-20 21:50:28,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:50:28,999 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2022-07-20 21:50:28,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 21:50:28,999 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 [2022-07-20 21:50:29,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:50:29,000 INFO L225 Difference]: With dead ends: 27 [2022-07-20 21:50:29,001 INFO L226 Difference]: Without dead ends: 23 [2022-07-20 21:50:29,001 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 [2022-07-20 21:50:29,003 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 [2022-07-20 21:50:29,003 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] [2022-07-20 21:50:29,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-07-20 21:50:29,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-07-20 21:50:29,009 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) [2022-07-20 21:50:29,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-07-20 21:50:29,010 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 27 [2022-07-20 21:50:29,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:50:29,012 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-07-20 21:50:29,012 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) [2022-07-20 21:50:29,012 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-07-20 21:50:29,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-20 21:50:29,013 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:50:29,013 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] [2022-07-20 21:50:29,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 21:50:29,014 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:50:29,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:50:29,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1623352868, now seen corresponding path program 1 times [2022-07-20 21:50:29,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:50:29,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431882877] [2022-07-20 21:50:29,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:50:29,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:50:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:29,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 21:50:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:29,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-20 21:50:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:29,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-20 21:50:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:29,137 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-20 21:50:29,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:50:29,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431882877] [2022-07-20 21:50:29,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431882877] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 21:50:29,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 21:50:29,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 21:50:29,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261230091] [2022-07-20 21:50:29,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 21:50:29,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 21:50:29,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:50:29,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 21:50:29,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 21:50:29,140 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) [2022-07-20 21:50:29,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:50:29,199 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2022-07-20 21:50:29,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 21:50:29,201 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 [2022-07-20 21:50:29,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:50:29,202 INFO L225 Difference]: With dead ends: 43 [2022-07-20 21:50:29,203 INFO L226 Difference]: Without dead ends: 26 [2022-07-20 21:50:29,204 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 [2022-07-20 21:50:29,206 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 21:50:29,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 61 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 21:50:29,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-07-20 21:50:29,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-07-20 21:50:29,212 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) [2022-07-20 21:50:29,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-07-20 21:50:29,213 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 29 [2022-07-20 21:50:29,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:50:29,213 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-07-20 21:50:29,213 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) [2022-07-20 21:50:29,213 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-07-20 21:50:29,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-20 21:50:29,214 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:50:29,214 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] [2022-07-20 21:50:29,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 21:50:29,215 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:50:29,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:50:29,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1083978846, now seen corresponding path program 1 times [2022-07-20 21:50:29,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:50:29,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428040891] [2022-07-20 21:50:29,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:50:29,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:50:29,238 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:50:29,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1861776337] [2022-07-20 21:50:29,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:50:29,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:50:29,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:50:29,241 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) [2022-07-20 21:50:29,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-20 21:50:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 21:50:29,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-20 21:50:29,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:50:29,443 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-20 21:50:29,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:50:29,708 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-20 21:50:29,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:50:29,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428040891] [2022-07-20 21:50:29,709 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:50:29,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861776337] [2022-07-20 21:50:29,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861776337] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:50:29,709 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:50:29,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 15 [2022-07-20 21:50:29,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935537717] [2022-07-20 21:50:29,710 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:50:29,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-20 21:50:29,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:50:29,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-20 21:50:29,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-07-20 21:50:29,711 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) [2022-07-20 21:50:30,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:50:30,018 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions. [2022-07-20 21:50:30,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-20 21:50:30,019 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 [2022-07-20 21:50:30,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:50:30,020 INFO L225 Difference]: With dead ends: 73 [2022-07-20 21:50:30,020 INFO L226 Difference]: Without dead ends: 42 [2022-07-20 21:50:30,021 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 [2022-07-20 21:50:30,022 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 39 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-20 21:50:30,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 127 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-20 21:50:30,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-07-20 21:50:30,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2022-07-20 21:50:30,027 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) [2022-07-20 21:50:30,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2022-07-20 21:50:30,028 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 31 [2022-07-20 21:50:30,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:50:30,028 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2022-07-20 21:50:30,029 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) [2022-07-20 21:50:30,029 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2022-07-20 21:50:30,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-20 21:50:30,030 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:50:30,030 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] [2022-07-20 21:50:30,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-20 21:50:30,251 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 [2022-07-20 21:50:30,252 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:50:30,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:50:30,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1214758882, now seen corresponding path program 2 times [2022-07-20 21:50:30,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:50:30,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922518229] [2022-07-20 21:50:30,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:50:30,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:50:30,274 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:50:30,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1211138405] [2022-07-20 21:50:30,287 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 21:50:30,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:50:30,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:50:30,290 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) [2022-07-20 21:50:30,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-20 21:50:30,462 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-20 21:50:30,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:50:30,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-20 21:50:30,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:50:30,536 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-20 21:50:30,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 21:50:30,603 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-20 21:50:30,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 21:50:30,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922518229] [2022-07-20 21:50:30,604 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-20 21:50:30,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211138405] [2022-07-20 21:50:30,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211138405] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 21:50:30,604 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-20 21:50:30,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2022-07-20 21:50:30,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188992430] [2022-07-20 21:50:30,605 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-20 21:50:30,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-20 21:50:30,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 21:50:30,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-20 21:50:30,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-07-20 21:50:30,607 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) [2022-07-20 21:50:30,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 21:50:30,743 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2022-07-20 21:50:30,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-20 21:50:30,744 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 [2022-07-20 21:50:30,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 21:50:30,745 INFO L225 Difference]: With dead ends: 40 [2022-07-20 21:50:30,745 INFO L226 Difference]: Without dead ends: 36 [2022-07-20 21:50:30,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-07-20 21:50:30,746 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 54 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 21:50:30,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 78 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 21:50:30,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-07-20 21:50:30,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-07-20 21:50:30,751 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) [2022-07-20 21:50:30,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2022-07-20 21:50:30,752 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 35 [2022-07-20 21:50:30,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 21:50:30,752 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2022-07-20 21:50:30,752 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) [2022-07-20 21:50:30,753 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2022-07-20 21:50:30,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-20 21:50:30,753 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 21:50:30,753 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] [2022-07-20 21:50:30,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-20 21:50:30,959 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 [2022-07-20 21:50:30,959 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 21:50:30,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 21:50:30,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1618850078, now seen corresponding path program 3 times [2022-07-20 21:50:30,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 21:50:30,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881132280] [2022-07-20 21:50:30,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 21:50:30,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 21:50:30,983 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-20 21:50:30,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [670328717] [2022-07-20 21:50:30,987 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-20 21:50:30,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 21:50:30,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 21:50:30,990 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) [2022-07-20 21:50:30,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-20 21:50:31,209 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-07-20 21:50:31,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 21:50:31,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 86 conjunts are in the unsatisfiable core [2022-07-20 21:50:31,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 21:50:31,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-07-20 21:50:31,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:31,333 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 33 treesize of output 37 [2022-07-20 21:50:31,342 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 15 [2022-07-20 21:50:31,349 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 33 treesize of output 32 [2022-07-20 21:50:31,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:31,454 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 40 treesize of output 39 [2022-07-20 21:50:31,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:31,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 22 [2022-07-20 21:50:31,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:31,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:31,473 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 39 treesize of output 44 [2022-07-20 21:50:31,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:31,559 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 53 treesize of output 50 [2022-07-20 21:50:31,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:31,590 INFO L356 Elim1Store]: treesize reduction 54, result has 23.9 percent of original size [2022-07-20 21:50:31,590 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 25 treesize of output 34 [2022-07-20 21:50:31,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:31,613 INFO L356 Elim1Store]: treesize reduction 53, result has 11.7 percent of original size [2022-07-20 21:50:31,614 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 60 [2022-07-20 21:50:33,154 INFO L356 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-07-20 21:50:33,155 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1182 treesize of output 1097 [2022-07-20 21:50:33,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,606 INFO L244 Elim1Store]: Index analysis took 396 ms [2022-07-20 21:50:33,629 INFO L356 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-07-20 21:50:33,629 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-07-20 21:50:33,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:33,994 INFO L244 Elim1Store]: Index analysis took 294 ms [2022-07-20 21:50:34,063 INFO L356 Elim1Store]: treesize reduction 175, result has 0.6 percent of original size [2022-07-20 21:50:34,064 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 6 stores, 7 select indices, 7 select index equivalence classes, 32 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 6 case distinctions, treesize of input 667 treesize of output 1321 [2022-07-20 21:50:36,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,486 INFO L244 Elim1Store]: Index analysis took 218 ms [2022-07-20 21:50:36,668 INFO L356 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-07-20 21:50:36,669 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 305 treesize of output 240 [2022-07-20 21:50:36,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,865 INFO L244 Elim1Store]: Index analysis took 139 ms [2022-07-20 21:50:36,939 INFO L356 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-07-20 21:50:36,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 26 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 2 case distinctions, treesize of input 243 treesize of output 123 [2022-07-20 21:50:36,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:36,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:37,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:37,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:37,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:37,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:37,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:37,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:37,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:37,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:37,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:37,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:37,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:37,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:37,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:37,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:37,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:37,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:37,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:37,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:50:37,077 INFO L356 Elim1Store]: treesize reduction 119, result has 7.0 percent of original size [2022-07-20 21:50:37,078 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 5 case distinctions, treesize of input 158 treesize of output 140 [2022-07-20 21:50:56,547 WARN L233 SmtUtils]: Spent 19.13s on a formula simplification. DAG size of input: 115 DAG size of output: 113 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-20 21:51:08,174 WARN L233 SmtUtils]: Spent 10.87s on a formula simplification that was a NOOP. DAG size: 112 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-20 21:51:22,189 WARN L233 SmtUtils]: Spent 8.87s on a formula simplification that was a NOOP. DAG size: 114 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-20 21:51:33,317 WARN L233 SmtUtils]: Spent 8.49s on a formula simplification that was a NOOP. DAG size: 122 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-20 21:51:44,256 WARN L233 SmtUtils]: Spent 8.37s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-20 21:51:44,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:44,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:51:44,339 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-20 21:51:44,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-20 21:52:18,853 WARN L233 SmtUtils]: Spent 34.49s on a formula simplification. DAG size of input: 471 DAG size of output: 215 (called from [L 353] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-07-20 21:52:18,854 INFO L356 Elim1Store]: treesize reduction 2124, result has 29.9 percent of original size [2022-07-20 21:52:18,855 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 20 select indices, 20 select index equivalence classes, 3 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 260 treesize of output 1002