./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-cav19/array_tiling_tcpy.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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-cav19/array_tiling_tcpy.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 5446997f7b2d7b76d63a39784df785fb06bbab562e365ba547eeee8a855e283e --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 08:46:26,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 08:46:26,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 08:46:26,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 08:46:26,458 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 08:46:26,461 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 08:46:26,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 08:46:26,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 08:46:26,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 08:46:26,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 08:46:26,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 08:46:26,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 08:46:26,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 08:46:26,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 08:46:26,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 08:46:26,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 08:46:26,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 08:46:26,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 08:46:26,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 08:46:26,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 08:46:26,488 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 08:46:26,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 08:46:26,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 08:46:26,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 08:46:26,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 08:46:26,493 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 08:46:26,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 08:46:26,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 08:46:26,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 08:46:26,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 08:46:26,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 08:46:26,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 08:46:26,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 08:46:26,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 08:46:26,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 08:46:26,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 08:46:26,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 08:46:26,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 08:46:26,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 08:46:26,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 08:46:26,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 08:46:26,502 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 08:46:26,521 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 08:46:26,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 08:46:26,524 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 08:46:26,524 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 08:46:26,525 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 08:46:26,525 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 08:46:26,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 08:46:26,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 08:46:26,526 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 08:46:26,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 08:46:26,526 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 08:46:26,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 08:46:26,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 08:46:26,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 08:46:26,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 08:46:26,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 08:46:26,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 08:46:26,527 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 08:46:26,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 08:46:26,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 08:46:26,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 08:46:26,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 08:46:26,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 08:46:26,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 08:46:26,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:46:26,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 08:46:26,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 08:46:26,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 08:46:26,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 08:46:26,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 08:46:26,529 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 08:46:26,529 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 08:46:26,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 08:46:26,530 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 08:46:26,530 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5446997f7b2d7b76d63a39784df785fb06bbab562e365ba547eeee8a855e283e [2021-12-15 08:46:26,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 08:46:26,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 08:46:26,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 08:46:26,737 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 08:46:26,737 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 08:46:26,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-cav19/array_tiling_tcpy.c [2021-12-15 08:46:26,776 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58a3da085/dae5983bd60446ebb2cb3dc2fcccc965/FLAGe99141019 [2021-12-15 08:46:27,111 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 08:46:27,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_tiling_tcpy.c [2021-12-15 08:46:27,115 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58a3da085/dae5983bd60446ebb2cb3dc2fcccc965/FLAGe99141019 [2021-12-15 08:46:27,552 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58a3da085/dae5983bd60446ebb2cb3dc2fcccc965 [2021-12-15 08:46:27,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 08:46:27,556 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 08:46:27,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 08:46:27,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 08:46:27,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 08:46:27,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:46:27" (1/1) ... [2021-12-15 08:46:27,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20cf8cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:27, skipping insertion in model container [2021-12-15 08:46:27,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:46:27" (1/1) ... [2021-12-15 08:46:27,565 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 08:46:27,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 08:46:27,693 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-cav19/array_tiling_tcpy.c[408,421] [2021-12-15 08:46:27,725 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:46:27,730 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 08:46:27,738 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-cav19/array_tiling_tcpy.c[408,421] [2021-12-15 08:46:27,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:46:27,760 INFO L208 MainTranslator]: Completed translation [2021-12-15 08:46:27,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:27 WrapperNode [2021-12-15 08:46:27,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 08:46:27,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 08:46:27,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 08:46:27,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 08:46:27,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:27" (1/1) ... [2021-12-15 08:46:27,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:27" (1/1) ... [2021-12-15 08:46:27,784 INFO L137 Inliner]: procedures = 15, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2021-12-15 08:46:27,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 08:46:27,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 08:46:27,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 08:46:27,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 08:46:27,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:27" (1/1) ... [2021-12-15 08:46:27,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:27" (1/1) ... [2021-12-15 08:46:27,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:27" (1/1) ... [2021-12-15 08:46:27,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:27" (1/1) ... [2021-12-15 08:46:27,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:27" (1/1) ... [2021-12-15 08:46:27,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:27" (1/1) ... [2021-12-15 08:46:27,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:27" (1/1) ... [2021-12-15 08:46:27,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 08:46:27,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 08:46:27,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 08:46:27,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 08:46:27,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:27" (1/1) ... [2021-12-15 08:46:27,819 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:46:27,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:46:27,852 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) [2021-12-15 08:46:27,871 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 [2021-12-15 08:46:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 08:46:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 08:46:27,878 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 08:46:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 08:46:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 08:46:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 08:46:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 08:46:27,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 08:46:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 08:46:27,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 08:46:27,922 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 08:46:27,924 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 08:46:28,046 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 08:46:28,050 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 08:46:28,050 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 08:46:28,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:46:28 BoogieIcfgContainer [2021-12-15 08:46:28,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 08:46:28,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 08:46:28,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 08:46:28,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 08:46:28,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:46:27" (1/3) ... [2021-12-15 08:46:28,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d69a294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:46:28, skipping insertion in model container [2021-12-15 08:46:28,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:27" (2/3) ... [2021-12-15 08:46:28,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d69a294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:46:28, skipping insertion in model container [2021-12-15 08:46:28,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:46:28" (3/3) ... [2021-12-15 08:46:28,058 INFO L111 eAbstractionObserver]: Analyzing ICFG array_tiling_tcpy.c [2021-12-15 08:46:28,061 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 08:46:28,061 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 08:46:28,110 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 08:46:28,127 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 [2021-12-15 08:46:28,127 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 08:46:28,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 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) [2021-12-15 08:46:28,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-15 08:46:28,152 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:46:28,152 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:46:28,152 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:46:28,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:46:28,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1700606493, now seen corresponding path program 1 times [2021-12-15 08:46:28,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:46:28,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945475471] [2021-12-15 08:46:28,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:46:28,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:46:28,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 08:46:28,216 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 08:46:28,221 INFO L158 Benchmark]: Toolchain (without parser) took 664.01ms. Allocated memory is still 98.6MB. Free memory was 70.1MB in the beginning and 54.6MB in the end (delta: 15.5MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2021-12-15 08:46:28,222 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:46:28,222 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.99ms. Allocated memory is still 98.6MB. Free memory was 69.9MB in the beginning and 76.5MB in the end (delta: -6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 08:46:28,223 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.47ms. Allocated memory is still 98.6MB. Free memory was 76.5MB in the beginning and 74.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 08:46:28,224 INFO L158 Benchmark]: Boogie Preprocessor took 28.40ms. Allocated memory is still 98.6MB. Free memory was 74.8MB in the beginning and 73.8MB in the end (delta: 996.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:46:28,224 INFO L158 Benchmark]: RCFGBuilder took 237.27ms. Allocated memory is still 98.6MB. Free memory was 73.8MB in the beginning and 64.0MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 08:46:28,225 INFO L158 Benchmark]: TraceAbstraction took 167.43ms. Allocated memory is still 98.6MB. Free memory was 63.3MB in the beginning and 54.6MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 08:46:28,228 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 81.8MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 202.99ms. Allocated memory is still 98.6MB. Free memory was 69.9MB in the beginning and 76.5MB in the end (delta: -6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.47ms. Allocated memory is still 98.6MB. Free memory was 76.5MB in the beginning and 74.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.40ms. Allocated memory is still 98.6MB. Free memory was 74.8MB in the beginning and 73.8MB in the end (delta: 996.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 237.27ms. Allocated memory is still 98.6MB. Free memory was 73.8MB in the beginning and 64.0MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 167.43ms. Allocated memory is still 98.6MB. Free memory was 63.3MB in the beginning and 54.6MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 08:46:28,262 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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-cav19/array_tiling_tcpy.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 5446997f7b2d7b76d63a39784df785fb06bbab562e365ba547eeee8a855e283e --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 08:46:30,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 08:46:30,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 08:46:30,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 08:46:30,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 08:46:30,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 08:46:30,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 08:46:30,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 08:46:30,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 08:46:30,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 08:46:30,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 08:46:30,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 08:46:30,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 08:46:30,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 08:46:30,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 08:46:30,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 08:46:30,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 08:46:30,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 08:46:30,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 08:46:30,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 08:46:30,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 08:46:30,160 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 08:46:30,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 08:46:30,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 08:46:30,177 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 08:46:30,181 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 08:46:30,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 08:46:30,182 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 08:46:30,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 08:46:30,183 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 08:46:30,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 08:46:30,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 08:46:30,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 08:46:30,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 08:46:30,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 08:46:30,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 08:46:30,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 08:46:30,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 08:46:30,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 08:46:30,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 08:46:30,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 08:46:30,191 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 08:46:30,215 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 08:46:30,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 08:46:30,217 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 08:46:30,217 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 08:46:30,218 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 08:46:30,218 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 08:46:30,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 08:46:30,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 08:46:30,219 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 08:46:30,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 08:46:30,220 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 08:46:30,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 08:46:30,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 08:46:30,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 08:46:30,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 08:46:30,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 08:46:30,221 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 08:46:30,221 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 08:46:30,221 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 08:46:30,221 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 08:46:30,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 08:46:30,222 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 08:46:30,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 08:46:30,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 08:46:30,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 08:46:30,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 08:46:30,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:46:30,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 08:46:30,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 08:46:30,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 08:46:30,223 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 08:46:30,223 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 08:46:30,223 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 08:46:30,224 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 08:46:30,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 08:46:30,224 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 08:46:30,224 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 08:46:30,224 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5446997f7b2d7b76d63a39784df785fb06bbab562e365ba547eeee8a855e283e [2021-12-15 08:46:30,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 08:46:30,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 08:46:30,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 08:46:30,515 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 08:46:30,521 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 08:46:30,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-cav19/array_tiling_tcpy.c [2021-12-15 08:46:30,583 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c1a082a7/b08970da214647f79a4ed26760489d4b/FLAGe4b68c6e6 [2021-12-15 08:46:30,954 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 08:46:30,955 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_tiling_tcpy.c [2021-12-15 08:46:30,959 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c1a082a7/b08970da214647f79a4ed26760489d4b/FLAGe4b68c6e6 [2021-12-15 08:46:31,387 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c1a082a7/b08970da214647f79a4ed26760489d4b [2021-12-15 08:46:31,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 08:46:31,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 08:46:31,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 08:46:31,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 08:46:31,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 08:46:31,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:46:31" (1/1) ... [2021-12-15 08:46:31,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a828e98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:31, skipping insertion in model container [2021-12-15 08:46:31,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:46:31" (1/1) ... [2021-12-15 08:46:31,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 08:46:31,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 08:46:31,539 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-cav19/array_tiling_tcpy.c[408,421] [2021-12-15 08:46:31,555 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:46:31,564 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 08:46:31,577 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-cav19/array_tiling_tcpy.c[408,421] [2021-12-15 08:46:31,585 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:46:31,607 INFO L208 MainTranslator]: Completed translation [2021-12-15 08:46:31,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:31 WrapperNode [2021-12-15 08:46:31,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 08:46:31,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 08:46:31,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 08:46:31,613 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 08:46:31,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:31" (1/1) ... [2021-12-15 08:46:31,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:31" (1/1) ... [2021-12-15 08:46:31,647 INFO L137 Inliner]: procedures = 17, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2021-12-15 08:46:31,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 08:46:31,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 08:46:31,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 08:46:31,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 08:46:31,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:31" (1/1) ... [2021-12-15 08:46:31,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:31" (1/1) ... [2021-12-15 08:46:31,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:31" (1/1) ... [2021-12-15 08:46:31,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:31" (1/1) ... [2021-12-15 08:46:31,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:31" (1/1) ... [2021-12-15 08:46:31,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:31" (1/1) ... [2021-12-15 08:46:31,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:31" (1/1) ... [2021-12-15 08:46:31,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 08:46:31,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 08:46:31,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 08:46:31,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 08:46:31,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:31" (1/1) ... [2021-12-15 08:46:31,671 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:46:31,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:46:31,688 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) [2021-12-15 08:46:31,714 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 08:46:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 08:46:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 08:46:31,715 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 08:46:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 08:46:31,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 08:46:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 08:46:31,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 08:46:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 08:46:31,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 08:46:31,700 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 [2021-12-15 08:46:31,765 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 08:46:31,767 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 08:46:31,962 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 08:46:31,965 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 08:46:31,966 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 08:46:31,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:46:31 BoogieIcfgContainer [2021-12-15 08:46:31,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 08:46:31,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 08:46:31,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 08:46:31,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 08:46:31,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:46:31" (1/3) ... [2021-12-15 08:46:31,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662d8383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:46:31, skipping insertion in model container [2021-12-15 08:46:31,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:46:31" (2/3) ... [2021-12-15 08:46:31,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662d8383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:46:31, skipping insertion in model container [2021-12-15 08:46:31,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:46:31" (3/3) ... [2021-12-15 08:46:31,985 INFO L111 eAbstractionObserver]: Analyzing ICFG array_tiling_tcpy.c [2021-12-15 08:46:31,988 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 08:46:31,988 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 08:46:32,042 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 08:46:32,046 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 [2021-12-15 08:46:32,046 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 08:46:32,076 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 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) [2021-12-15 08:46:32,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-15 08:46:32,079 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:46:32,080 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:46:32,080 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:46:32,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:46:32,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1700606493, now seen corresponding path program 1 times [2021-12-15 08:46:32,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 08:46:32,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1117503158] [2021-12-15 08:46:32,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:46:32,108 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 08:46:32,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 08:46:32,125 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 08:46:32,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 08:46:32,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 08:46:32,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 08:46:32,357 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 08:46:32,361 INFO L158 Benchmark]: Toolchain (without parser) took 967.03ms. Allocated memory is still 65.0MB. Free memory was 41.2MB in the beginning and 43.5MB in the end (delta: -2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:46:32,362 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 46.1MB. Free memory was 27.7MB in the beginning and 27.7MB in the end (delta: 30.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:46:32,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.70ms. Allocated memory is still 65.0MB. Free memory was 41.0MB in the beginning and 48.0MB in the end (delta: -6.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 08:46:32,362 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.53ms. Allocated memory is still 65.0MB. Free memory was 47.8MB in the beginning and 46.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:46:32,363 INFO L158 Benchmark]: Boogie Preprocessor took 17.31ms. Allocated memory is still 65.0MB. Free memory was 46.3MB in the beginning and 45.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 08:46:32,363 INFO L158 Benchmark]: RCFGBuilder took 301.50ms. Allocated memory is still 65.0MB. Free memory was 44.9MB in the beginning and 34.9MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 08:46:32,364 INFO L158 Benchmark]: TraceAbstraction took 392.26ms. Allocated memory is still 65.0MB. Free memory was 34.4MB in the beginning and 43.5MB in the end (delta: -9.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:46:32,365 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 46.1MB. Free memory was 27.7MB in the beginning and 27.7MB in the end (delta: 30.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 215.70ms. Allocated memory is still 65.0MB. Free memory was 41.0MB in the beginning and 48.0MB in the end (delta: -6.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.53ms. Allocated memory is still 65.0MB. Free memory was 47.8MB in the beginning and 46.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.31ms. Allocated memory is still 65.0MB. Free memory was 46.3MB in the beginning and 45.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 301.50ms. Allocated memory is still 65.0MB. Free memory was 44.9MB in the beginning and 34.9MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 392.26ms. Allocated memory is still 65.0MB. Free memory was 34.4MB in the beginning and 43.5MB in the end (delta: -9.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 08:46:32,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable