./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array16_pattern.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-patterns/array16_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 db57f1195f9e10b53cb5b54e10ee768ec758884b71e7f0bbf52d0c8cfb29e46d --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 08:44:53,986 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 08:44:53,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 08:44:54,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 08:44:54,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 08:44:54,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 08:44:54,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 08:44:54,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 08:44:54,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 08:44:54,036 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 08:44:54,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 08:44:54,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 08:44:54,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 08:44:54,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 08:44:54,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 08:44:54,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 08:44:54,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 08:44:54,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 08:44:54,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 08:44:54,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 08:44:54,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 08:44:54,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 08:44:54,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 08:44:54,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 08:44:54,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 08:44:54,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 08:44:54,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 08:44:54,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 08:44:54,060 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 08:44:54,060 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 08:44:54,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 08:44:54,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 08:44:54,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 08:44:54,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 08:44:54,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 08:44:54,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 08:44:54,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 08:44:54,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 08:44:54,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 08:44:54,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 08:44:54,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 08:44:54,066 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 08:44:54,090 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 08:44:54,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 08:44:54,090 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 08:44:54,090 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 08:44:54,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 08:44:54,091 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 08:44:54,092 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 08:44:54,092 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 08:44:54,092 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 08:44:54,092 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 08:44:54,093 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 08:44:54,093 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 08:44:54,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 08:44:54,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 08:44:54,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 08:44:54,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 08:44:54,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 08:44:54,094 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 08:44:54,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 08:44:54,094 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 08:44:54,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 08:44:54,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 08:44:54,094 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 08:44:54,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 08:44:54,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:44:54,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 08:44:54,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 08:44:54,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 08:44:54,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 08:44:54,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 08:44:54,096 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 08:44:54,097 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 08:44:54,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 08:44:54,097 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 08:44:54,097 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db57f1195f9e10b53cb5b54e10ee768ec758884b71e7f0bbf52d0c8cfb29e46d [2021-12-15 08:44:54,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 08:44:54,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 08:44:54,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 08:44:54,330 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 08:44:54,330 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 08:44:54,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array16_pattern.c [2021-12-15 08:44:54,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8f0ce0ff/805534a69a6c49dfb1bf18aa851675f6/FLAG51ccabddc [2021-12-15 08:44:54,717 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 08:44:54,718 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array16_pattern.c [2021-12-15 08:44:54,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8f0ce0ff/805534a69a6c49dfb1bf18aa851675f6/FLAG51ccabddc [2021-12-15 08:44:55,114 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8f0ce0ff/805534a69a6c49dfb1bf18aa851675f6 [2021-12-15 08:44:55,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 08:44:55,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 08:44:55,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 08:44:55,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 08:44:55,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 08:44:55,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:44:55" (1/1) ... [2021-12-15 08:44:55,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2343262d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:55, skipping insertion in model container [2021-12-15 08:44:55,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:44:55" (1/1) ... [2021-12-15 08:44:55,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 08:44:55,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 08:44:55,315 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/array16_pattern.c[1311,1324] [2021-12-15 08:44:55,345 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:44:55,350 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 08:44:55,357 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/array16_pattern.c[1311,1324] [2021-12-15 08:44:55,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:44:55,371 INFO L208 MainTranslator]: Completed translation [2021-12-15 08:44:55,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:55 WrapperNode [2021-12-15 08:44:55,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 08:44:55,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 08:44:55,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 08:44:55,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 08:44:55,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:55" (1/1) ... [2021-12-15 08:44:55,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:55" (1/1) ... [2021-12-15 08:44:55,416 INFO L137 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 95 [2021-12-15 08:44:55,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 08:44:55,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 08:44:55,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 08:44:55,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 08:44:55,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:55" (1/1) ... [2021-12-15 08:44:55,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:55" (1/1) ... [2021-12-15 08:44:55,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:55" (1/1) ... [2021-12-15 08:44:55,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:55" (1/1) ... [2021-12-15 08:44:55,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:55" (1/1) ... [2021-12-15 08:44:55,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:55" (1/1) ... [2021-12-15 08:44:55,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:55" (1/1) ... [2021-12-15 08:44:55,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 08:44:55,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 08:44:55,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 08:44:55,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 08:44:55,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:55" (1/1) ... [2021-12-15 08:44:55,458 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:44:55,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:44:55,474 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 08:44:55,482 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 08:44:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 08:44:55,508 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 08:44:55,509 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 08:44:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 08:44:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 08:44:55,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 08:44:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 08:44:55,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 08:44:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 08:44:55,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 08:44:55,554 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 08:44:55,555 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 08:44:55,676 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 08:44:55,681 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 08:44:55,681 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-15 08:44:55,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:44:55 BoogieIcfgContainer [2021-12-15 08:44:55,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 08:44:55,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 08:44:55,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 08:44:55,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 08:44:55,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:44:55" (1/3) ... [2021-12-15 08:44:55,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6916136b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:44:55, skipping insertion in model container [2021-12-15 08:44:55,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:55" (2/3) ... [2021-12-15 08:44:55,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6916136b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:44:55, skipping insertion in model container [2021-12-15 08:44:55,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:44:55" (3/3) ... [2021-12-15 08:44:55,708 INFO L111 eAbstractionObserver]: Analyzing ICFG array16_pattern.c [2021-12-15 08:44:55,712 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 08:44:55,712 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 08:44:55,750 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 08:44:55,755 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 08:44:55,755 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 08:44:55,766 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 25 states have (on average 1.6) internal successors, (40), 26 states have internal predecessors, (40), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-15 08:44:55,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-15 08:44:55,771 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:44:55,772 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:44:55,772 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:44:55,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:44:55,779 INFO L85 PathProgramCache]: Analyzing trace with hash -152131175, now seen corresponding path program 1 times [2021-12-15 08:44:55,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:44:55,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493582441] [2021-12-15 08:44:55,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:44:55,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:44:55,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 08:44:55,837 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 08:44:55,846 INFO L158 Benchmark]: Toolchain (without parser) took 726.40ms. Allocated memory is still 138.4MB. Free memory was 108.7MB in the beginning and 88.7MB in the end (delta: 20.0MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2021-12-15 08:44:55,847 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 79.7MB. Free memory was 39.9MB in the beginning and 39.8MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:44:55,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.36ms. Allocated memory is still 138.4MB. Free memory was 108.4MB in the beginning and 112.7MB in the end (delta: -4.3MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2021-12-15 08:44:55,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.53ms. Allocated memory is still 138.4MB. Free memory was 112.7MB in the beginning and 111.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:44:55,849 INFO L158 Benchmark]: Boogie Preprocessor took 29.27ms. Allocated memory is still 138.4MB. Free memory was 110.6MB in the beginning and 109.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:44:55,849 INFO L158 Benchmark]: RCFGBuilder took 235.95ms. Allocated memory is still 138.4MB. Free memory was 109.4MB in the beginning and 98.0MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 08:44:55,850 INFO L158 Benchmark]: TraceAbstraction took 141.72ms. Allocated memory is still 138.4MB. Free memory was 97.6MB in the beginning and 88.7MB in the end (delta: 8.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 08:44:55,857 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 79.7MB. Free memory was 39.9MB in the beginning and 39.8MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.36ms. Allocated memory is still 138.4MB. Free memory was 108.4MB in the beginning and 112.7MB in the end (delta: -4.3MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.53ms. Allocated memory is still 138.4MB. Free memory was 112.7MB in the beginning and 111.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.27ms. Allocated memory is still 138.4MB. Free memory was 110.6MB in the beginning and 109.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 235.95ms. Allocated memory is still 138.4MB. Free memory was 109.4MB in the beginning and 98.0MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 141.72ms. Allocated memory is still 138.4MB. Free memory was 97.6MB in the beginning and 88.7MB in the end (delta: 8.9MB). Peak memory consumption was 6.3MB. 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 08:44:55,906 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-patterns/array16_pattern.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 db57f1195f9e10b53cb5b54e10ee768ec758884b71e7f0bbf52d0c8cfb29e46d --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 08:44:57,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 08:44:57,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 08:44:57,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 08:44:57,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 08:44:57,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 08:44:57,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 08:44:57,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 08:44:57,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 08:44:57,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 08:44:57,532 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 08:44:57,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 08:44:57,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 08:44:57,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 08:44:57,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 08:44:57,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 08:44:57,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 08:44:57,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 08:44:57,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 08:44:57,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 08:44:57,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 08:44:57,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 08:44:57,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 08:44:57,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 08:44:57,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 08:44:57,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 08:44:57,544 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 08:44:57,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 08:44:57,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 08:44:57,545 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 08:44:57,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 08:44:57,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 08:44:57,547 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 08:44:57,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 08:44:57,548 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 08:44:57,548 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 08:44:57,549 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 08:44:57,549 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 08:44:57,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 08:44:57,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 08:44:57,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 08:44:57,551 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 08:44:57,566 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 08:44:57,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 08:44:57,566 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 08:44:57,566 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 08:44:57,567 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 08:44:57,567 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 08:44:57,568 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 08:44:57,568 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 08:44:57,568 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 08:44:57,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 08:44:57,568 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 08:44:57,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 08:44:57,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 08:44:57,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 08:44:57,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 08:44:57,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 08:44:57,569 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 08:44:57,569 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 08:44:57,570 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 08:44:57,570 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 08:44:57,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 08:44:57,570 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 08:44:57,570 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 08:44:57,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 08:44:57,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 08:44:57,571 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 08:44:57,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:44:57,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 08:44:57,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 08:44:57,572 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 08:44:57,572 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 08:44:57,572 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 08:44:57,572 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 08:44:57,572 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 08:44:57,572 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 08:44:57,573 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 08:44:57,573 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 08:44:57,573 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db57f1195f9e10b53cb5b54e10ee768ec758884b71e7f0bbf52d0c8cfb29e46d [2021-12-15 08:44:57,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 08:44:57,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 08:44:57,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 08:44:57,809 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 08:44:57,809 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 08:44:57,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array16_pattern.c [2021-12-15 08:44:57,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0001fc2f5/49c3ae347123450082186563dcc7e9f7/FLAG2ff957ae7 [2021-12-15 08:44:58,198 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 08:44:58,199 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array16_pattern.c [2021-12-15 08:44:58,204 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0001fc2f5/49c3ae347123450082186563dcc7e9f7/FLAG2ff957ae7 [2021-12-15 08:44:58,651 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0001fc2f5/49c3ae347123450082186563dcc7e9f7 [2021-12-15 08:44:58,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 08:44:58,656 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 08:44:58,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 08:44:58,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 08:44:58,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 08:44:58,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:44:58" (1/1) ... [2021-12-15 08:44:58,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@153e0b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:58, skipping insertion in model container [2021-12-15 08:44:58,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:44:58" (1/1) ... [2021-12-15 08:44:58,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 08:44:58,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 08:44:58,819 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/array16_pattern.c[1311,1324] [2021-12-15 08:44:58,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:44:58,842 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 08:44:58,853 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/array16_pattern.c[1311,1324] [2021-12-15 08:44:58,863 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:44:58,872 INFO L208 MainTranslator]: Completed translation [2021-12-15 08:44:58,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:58 WrapperNode [2021-12-15 08:44:58,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 08:44:58,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 08:44:58,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 08:44:58,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 08:44:58,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:58" (1/1) ... [2021-12-15 08:44:58,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:58" (1/1) ... [2021-12-15 08:44:58,894 INFO L137 Inliner]: procedures = 18, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 91 [2021-12-15 08:44:58,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 08:44:58,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 08:44:58,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 08:44:58,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 08:44:58,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:58" (1/1) ... [2021-12-15 08:44:58,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:58" (1/1) ... [2021-12-15 08:44:58,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:58" (1/1) ... [2021-12-15 08:44:58,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:58" (1/1) ... [2021-12-15 08:44:58,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:58" (1/1) ... [2021-12-15 08:44:58,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:58" (1/1) ... [2021-12-15 08:44:58,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:58" (1/1) ... [2021-12-15 08:44:58,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 08:44:58,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 08:44:58,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 08:44:58,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 08:44:58,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:58" (1/1) ... [2021-12-15 08:44:58,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:44:58,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:44:58,955 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 08:44:58,972 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 08:44:58,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 08:44:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 08:44:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 08:44:58,982 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 08:44:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 08:44:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 08:44:58,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 08:44:58,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 08:44:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 08:44:58,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 08:44:59,048 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 08:44:59,049 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 08:44:59,299 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 08:44:59,303 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 08:44:59,303 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-15 08:44:59,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:44:59 BoogieIcfgContainer [2021-12-15 08:44:59,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 08:44:59,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 08:44:59,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 08:44:59,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 08:44:59,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:44:58" (1/3) ... [2021-12-15 08:44:59,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b67e731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:44:59, skipping insertion in model container [2021-12-15 08:44:59,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:44:58" (2/3) ... [2021-12-15 08:44:59,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b67e731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:44:59, skipping insertion in model container [2021-12-15 08:44:59,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:44:59" (3/3) ... [2021-12-15 08:44:59,309 INFO L111 eAbstractionObserver]: Analyzing ICFG array16_pattern.c [2021-12-15 08:44:59,312 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 08:44:59,312 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 08:44:59,337 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 08:44:59,342 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 08:44:59,342 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 08:44:59,351 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 25 states have (on average 1.6) internal successors, (40), 26 states have internal predecessors, (40), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-15 08:44:59,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-15 08:44:59,354 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:44:59,354 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:44:59,354 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:44:59,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:44:59,357 INFO L85 PathProgramCache]: Analyzing trace with hash -152131175, now seen corresponding path program 1 times [2021-12-15 08:44:59,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 08:44:59,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725294289] [2021-12-15 08:44:59,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:44:59,365 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 08:44:59,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 08:44:59,367 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 08:44:59,368 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 08:44:59,394 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 08:44:59,592 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 08:44:59,592 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 08:44:59,596 INFO L158 Benchmark]: Toolchain (without parser) took 938.56ms. Allocated memory was 50.3MB in the beginning and 67.1MB in the end (delta: 16.8MB). Free memory was 26.2MB in the beginning and 36.5MB in the end (delta: -10.3MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-12-15 08:44:59,596 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory was 32.5MB in the beginning and 32.5MB in the end (delta: 43.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:44:59,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.25ms. Allocated memory was 50.3MB in the beginning and 67.1MB in the end (delta: 16.8MB). Free memory was 26.0MB in the beginning and 42.8MB in the end (delta: -16.8MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2021-12-15 08:44:59,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.73ms. Allocated memory is still 67.1MB. Free memory was 42.8MB in the beginning and 41.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 08:44:59,597 INFO L158 Benchmark]: Boogie Preprocessor took 38.52ms. Allocated memory is still 67.1MB. Free memory was 41.0MB in the beginning and 39.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:44:59,598 INFO L158 Benchmark]: RCFGBuilder took 369.99ms. Allocated memory is still 67.1MB. Free memory was 39.7MB in the beginning and 45.1MB in the end (delta: -5.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 08:44:59,607 INFO L158 Benchmark]: TraceAbstraction took 289.18ms. Allocated memory is still 67.1MB. Free memory was 44.6MB in the beginning and 36.5MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 08:44:59,609 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 50.3MB. Free memory was 32.5MB in the beginning and 32.5MB in the end (delta: 43.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.25ms. Allocated memory was 50.3MB in the beginning and 67.1MB in the end (delta: 16.8MB). Free memory was 26.0MB in the beginning and 42.8MB in the end (delta: -16.8MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.73ms. Allocated memory is still 67.1MB. Free memory was 42.8MB in the beginning and 41.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.52ms. Allocated memory is still 67.1MB. Free memory was 41.0MB in the beginning and 39.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 369.99ms. Allocated memory is still 67.1MB. Free memory was 39.7MB in the beginning and 45.1MB in the end (delta: -5.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 289.18ms. Allocated memory is still 67.1MB. Free memory was 44.6MB in the beginning and 36.5MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. 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 08:44:59,646 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