./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array11_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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/array11_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 c3ac08a3f6fb5579b9b2ae158efc8988dd3312e617d74223198803ffe0b335cb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-27 21:40:27,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-27 21:40:27,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-27 21:40:27,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-27 21:40:27,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-27 21:40:27,433 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-27 21:40:27,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-27 21:40:27,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-27 21:40:27,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-27 21:40:27,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-27 21:40:27,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-27 21:40:27,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-27 21:40:27,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-27 21:40:27,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-27 21:40:27,457 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-27 21:40:27,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-27 21:40:27,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-27 21:40:27,460 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-27 21:40:27,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-27 21:40:27,467 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-27 21:40:27,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-27 21:40:27,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-27 21:40:27,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-27 21:40:27,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-27 21:40:27,477 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-27 21:40:27,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-27 21:40:27,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-27 21:40:27,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-27 21:40:27,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-27 21:40:27,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-27 21:40:27,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-27 21:40:27,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-27 21:40:27,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-27 21:40:27,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-27 21:40:27,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-27 21:40:27,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-27 21:40:27,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-27 21:40:27,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-27 21:40:27,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-27 21:40:27,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-27 21:40:27,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-27 21:40:27,491 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-27 21:40:27,515 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-27 21:40:27,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-27 21:40:27,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-27 21:40:27,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-27 21:40:27,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-27 21:40:27,518 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-27 21:40:27,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-27 21:40:27,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-27 21:40:27,519 INFO L138 SettingsManager]: * Use SBE=true [2021-12-27 21:40:27,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-27 21:40:27,520 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-27 21:40:27,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-27 21:40:27,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-27 21:40:27,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-27 21:40:27,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-27 21:40:27,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-27 21:40:27,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-27 21:40:27,521 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-27 21:40:27,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-27 21:40:27,522 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-27 21:40:27,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-27 21:40:27,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-27 21:40:27,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-27 21:40:27,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-27 21:40:27,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-27 21:40:27,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-27 21:40:27,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-27 21:40:27,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-27 21:40:27,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-27 21:40:27,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-27 21:40:27,524 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-27 21:40:27,524 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-27 21:40:27,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-27 21:40:27,525 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3ac08a3f6fb5579b9b2ae158efc8988dd3312e617d74223198803ffe0b335cb [2021-12-27 21:40:27,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-27 21:40:27,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-27 21:40:27,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-27 21:40:27,865 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-27 21:40:27,866 INFO L275 PluginConnector]: CDTParser initialized [2021-12-27 21:40:27,867 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array11_pattern.c [2021-12-27 21:40:27,924 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f39d9b9de/c17b673b5be2489b85df4e81a48d7129/FLAGd255fdaa2 [2021-12-27 21:40:28,378 INFO L306 CDTParser]: Found 1 translation units. [2021-12-27 21:40:28,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array11_pattern.c [2021-12-27 21:40:28,385 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f39d9b9de/c17b673b5be2489b85df4e81a48d7129/FLAGd255fdaa2 [2021-12-27 21:40:28,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f39d9b9de/c17b673b5be2489b85df4e81a48d7129 [2021-12-27 21:40:28,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-27 21:40:28,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-27 21:40:28,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-27 21:40:28,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-27 21:40:28,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-27 21:40:28,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 09:40:28" (1/1) ... [2021-12-27 21:40:28,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@251df9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:40:28, skipping insertion in model container [2021-12-27 21:40:28,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 09:40:28" (1/1) ... [2021-12-27 21:40:28,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-27 21:40:28,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-27 21:40:28,952 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/array11_pattern.c[1357,1370] [2021-12-27 21:40:28,967 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-27 21:40:28,973 INFO L203 MainTranslator]: Completed pre-run [2021-12-27 21:40:28,982 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/array11_pattern.c[1357,1370] [2021-12-27 21:40:28,991 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-27 21:40:29,001 INFO L208 MainTranslator]: Completed translation [2021-12-27 21:40:29,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:40:29 WrapperNode [2021-12-27 21:40:29,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-27 21:40:29,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-27 21:40:29,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-27 21:40:29,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-27 21:40:29,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:40:29" (1/1) ... [2021-12-27 21:40:29,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:40:29" (1/1) ... [2021-12-27 21:40:29,029 INFO L137 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2021-12-27 21:40:29,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-27 21:40:29,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-27 21:40:29,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-27 21:40:29,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-27 21:40:29,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:40:29" (1/1) ... [2021-12-27 21:40:29,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:40:29" (1/1) ... [2021-12-27 21:40:29,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:40:29" (1/1) ... [2021-12-27 21:40:29,040 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:40:29" (1/1) ... [2021-12-27 21:40:29,044 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:40:29" (1/1) ... [2021-12-27 21:40:29,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:40:29" (1/1) ... [2021-12-27 21:40:29,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:40:29" (1/1) ... [2021-12-27 21:40:29,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-27 21:40:29,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-27 21:40:29,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-27 21:40:29,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-27 21:40:29,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:40:29" (1/1) ... [2021-12-27 21:40:29,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-27 21:40:29,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 21:40:29,075 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-27 21:40:29,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-27 21:40:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-27 21:40:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-27 21:40:29,106 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-27 21:40:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-27 21:40:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-27 21:40:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-27 21:40:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-27 21:40:29,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-27 21:40:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-27 21:40:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-27 21:40:29,173 INFO L234 CfgBuilder]: Building ICFG [2021-12-27 21:40:29,175 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-27 21:40:29,399 INFO L275 CfgBuilder]: Performing block encoding [2021-12-27 21:40:29,404 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-27 21:40:29,405 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-27 21:40:29,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 09:40:29 BoogieIcfgContainer [2021-12-27 21:40:29,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-27 21:40:29,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-27 21:40:29,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-27 21:40:29,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-27 21:40:29,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 09:40:28" (1/3) ... [2021-12-27 21:40:29,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab2e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 09:40:29, skipping insertion in model container [2021-12-27 21:40:29,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:40:29" (2/3) ... [2021-12-27 21:40:29,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab2e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 09:40:29, skipping insertion in model container [2021-12-27 21:40:29,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 09:40:29" (3/3) ... [2021-12-27 21:40:29,419 INFO L111 eAbstractionObserver]: Analyzing ICFG array11_pattern.c [2021-12-27 21:40:29,423 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-27 21:40:29,424 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-27 21:40:29,471 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-27 21:40:29,479 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-27 21:40:29,480 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-27 21:40:29,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 22 states have (on average 1.5) internal successors, (33), 23 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-27 21:40:29,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-27 21:40:29,501 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:40:29,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:40:29,502 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:40:29,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:40:29,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1199380475, now seen corresponding path program 1 times [2021-12-27 21:40:29,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:40:29,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240546882] [2021-12-27 21:40:29,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:40:29,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:40:29,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:40:29,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-27 21:40:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:40:29,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-27 21:40:29,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:40:29,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240546882] [2021-12-27 21:40:29,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240546882] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:40:29,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:40:29,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-27 21:40:29,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734659116] [2021-12-27 21:40:29,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:40:29,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-27 21:40:29,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:40:29,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-27 21:40:29,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-27 21:40:29,724 INFO L87 Difference]: Start difference. First operand has 27 states, 22 states have (on average 1.5) internal successors, (33), 23 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) 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) [2021-12-27 21:40:29,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:40:29,751 INFO L93 Difference]: Finished difference Result 51 states and 72 transitions. [2021-12-27 21:40:29,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-27 21:40:29,754 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 [2021-12-27 21:40:29,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:40:29,760 INFO L225 Difference]: With dead ends: 51 [2021-12-27 21:40:29,760 INFO L226 Difference]: Without dead ends: 23 [2021-12-27 21:40:29,763 INFO L932 BasicCegarLoop]: 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 [2021-12-27 21:40:29,768 INFO L933 BasicCegarLoop]: 31 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, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-27 21:40:29,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-27 21:40:29,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-12-27 21:40:29,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-12-27 21:40:29,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-27 21:40:29,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-12-27 21:40:29,798 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 15 [2021-12-27 21:40:29,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:40:29,799 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-12-27 21:40:29,799 INFO L471 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) [2021-12-27 21:40:29,799 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-12-27 21:40:29,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-27 21:40:29,801 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:40:29,801 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:40:29,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-27 21:40:29,802 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:40:29,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:40:29,806 INFO L85 PathProgramCache]: Analyzing trace with hash 966180883, now seen corresponding path program 1 times [2021-12-27 21:40:29,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:40:29,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183410616] [2021-12-27 21:40:29,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:40:29,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:40:29,834 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-27 21:40:29,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [4080077] [2021-12-27 21:40:29,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:40:29,835 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 21:40:29,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 21:40:29,837 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-27 21:40:29,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-27 21:40:29,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:40:29,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-27 21:40:29,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-27 21:40:30,060 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-27 21:40:30,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-27 21:40:30,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:40:30,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183410616] [2021-12-27 21:40:30,061 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-27 21:40:30,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4080077] [2021-12-27 21:40:30,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4080077] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:40:30,061 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:40:30,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-27 21:40:30,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248170309] [2021-12-27 21:40:30,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:40:30,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-27 21:40:30,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:40:30,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-27 21:40:30,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-27 21:40:30,064 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-27 21:40:30,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:40:30,095 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2021-12-27 21:40:30,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-27 21:40:30,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2021-12-27 21:40:30,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:40:30,096 INFO L225 Difference]: With dead ends: 28 [2021-12-27 21:40:30,096 INFO L226 Difference]: Without dead ends: 24 [2021-12-27 21:40:30,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-27 21:40:30,097 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 5 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 60 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 [2021-12-27 21:40:30,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 60 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-27 21:40:30,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-12-27 21:40:30,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-12-27 21:40:30,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-27 21:40:30,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2021-12-27 21:40:30,114 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 24 [2021-12-27 21:40:30,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:40:30,115 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-12-27 21:40:30,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-27 21:40:30,115 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-12-27 21:40:30,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-27 21:40:30,116 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:40:30,116 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:40:30,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-27 21:40:30,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 21:40:30,317 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:40:30,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:40:30,318 INFO L85 PathProgramCache]: Analyzing trace with hash 840126261, now seen corresponding path program 1 times [2021-12-27 21:40:30,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:40:30,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718529510] [2021-12-27 21:40:30,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:40:30,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:40:30,338 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-27 21:40:30,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1775437552] [2021-12-27 21:40:30,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:40:30,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 21:40:30,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 21:40:30,341 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-27 21:40:30,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-27 21:40:30,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:40:30,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-27 21:40:30,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-27 21:40:30,483 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-27 21:40:30,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-27 21:40:30,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:40:30,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718529510] [2021-12-27 21:40:30,485 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-27 21:40:30,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775437552] [2021-12-27 21:40:30,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775437552] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:40:30,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:40:30,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-27 21:40:30,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617934481] [2021-12-27 21:40:30,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:40:30,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-27 21:40:30,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:40:30,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-27 21:40:30,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-27 21:40:30,487 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-27 21:40:30,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:40:30,540 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2021-12-27 21:40:30,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-27 21:40:30,541 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2021-12-27 21:40:30,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:40:30,542 INFO L225 Difference]: With dead ends: 45 [2021-12-27 21:40:30,542 INFO L226 Difference]: Without dead ends: 27 [2021-12-27 21:40:30,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-27 21:40:30,544 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 13 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-27 21:40:30,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 75 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-27 21:40:30,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-12-27 21:40:30,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2021-12-27 21:40:30,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-27 21:40:30,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2021-12-27 21:40:30,549 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 26 [2021-12-27 21:40:30,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:40:30,549 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2021-12-27 21:40:30,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-27 21:40:30,550 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2021-12-27 21:40:30,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-27 21:40:30,551 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:40:30,551 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:40:30,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-27 21:40:30,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-12-27 21:40:30,772 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:40:30,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:40:30,773 INFO L85 PathProgramCache]: Analyzing trace with hash -760544265, now seen corresponding path program 1 times [2021-12-27 21:40:30,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:40:30,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662778010] [2021-12-27 21:40:30,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:40:30,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:40:30,796 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-27 21:40:30,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2030528826] [2021-12-27 21:40:30,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:40:30,796 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 21:40:30,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 21:40:30,798 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-27 21:40:30,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-27 21:40:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:40:30,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-27 21:40:30,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-27 21:40:31,024 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-27 21:40:31,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-27 21:40:31,194 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-27 21:40:31,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:40:31,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662778010] [2021-12-27 21:40:31,195 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-27 21:40:31,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030528826] [2021-12-27 21:40:31,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030528826] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-27 21:40:31,195 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-27 21:40:31,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-12-27 21:40:31,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345827976] [2021-12-27 21:40:31,196 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-27 21:40:31,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-27 21:40:31,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:40:31,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-27 21:40:31,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-12-27 21:40:31,198 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-27 21:40:31,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:40:31,383 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2021-12-27 21:40:31,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-27 21:40:31,384 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2021-12-27 21:40:31,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:40:31,387 INFO L225 Difference]: With dead ends: 90 [2021-12-27 21:40:31,387 INFO L226 Difference]: Without dead ends: 72 [2021-12-27 21:40:31,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2021-12-27 21:40:31,392 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 80 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 21:40:31,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 97 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 21:40:31,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-12-27 21:40:31,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 37. [2021-12-27 21:40:31,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 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) [2021-12-27 21:40:31,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2021-12-27 21:40:31,411 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 28 [2021-12-27 21:40:31,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:40:31,412 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2021-12-27 21:40:31,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.6363636363636362) internal successors, (29), 11 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-27 21:40:31,413 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2021-12-27 21:40:31,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-27 21:40:31,415 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:40:31,415 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:40:31,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-27 21:40:31,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 21:40:31,632 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:40:31,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:40:31,632 INFO L85 PathProgramCache]: Analyzing trace with hash -367517255, now seen corresponding path program 1 times [2021-12-27 21:40:31,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:40:31,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321545041] [2021-12-27 21:40:31,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:40:31,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:40:31,653 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-27 21:40:31,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [194049470] [2021-12-27 21:40:31,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:40:31,654 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 21:40:31,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 21:40:31,655 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-27 21:40:31,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-27 21:40:31,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:40:31,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 43 conjunts are in the unsatisfiable core [2021-12-27 21:40:31,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-27 21:40:31,787 INFO L387 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 [2021-12-27 21:40:31,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 21:40:31,827 INFO L387 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 27 treesize of output 31 [2021-12-27 21:40:31,841 INFO L387 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 28 [2021-12-27 21:40:31,846 INFO L387 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 12 treesize of output 11 [2021-12-27 21:40:31,852 INFO L387 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 12 treesize of output 11 [2021-12-27 21:40:32,220 INFO L387 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 60 [2021-12-27 21:40:32,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 21:40:34,235 WARN L177 IndexEqualityManager]: solver failed to check if following not equals relation is implied: (= (+ |ULTIMATE.start_main_~#array1~0#1.offset| (* (mod |ULTIMATE.start_main_~index~0#1| 4294967296) 4)) 0) [2021-12-27 21:40:34,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 21:40:34,364 INFO L244 Elim1Store]: Index analysis took 2132 ms [2021-12-27 21:40:40,564 WARN L228 SmtUtils]: Spent 6.20s on a formula simplification. DAG size of input: 18 DAG size of output: 13 (called from [L 350] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-12-27 21:40:40,565 INFO L353 Elim1Store]: treesize reduction 19, result has 40.6 percent of original size [2021-12-27 21:40:40,566 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 69 [2021-12-27 21:40:46,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 21:40:46,734 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 26 treesize of output 15 [2021-12-27 21:40:46,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 21:40:46,757 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 20 [2021-12-27 21:40:56,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 21:40:56,935 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 55 treesize of output 37 [2021-12-27 21:41:32,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-27 21:41:32,218 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 53 treesize of output 35