./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/Haystacks-12.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/xcsp/Haystacks-12.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 d16ca7995627bebd6b25714c6cdb7cb5a1d05438c2bab197d8d1545133b2c07a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:44:14,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:44:14,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:44:15,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:44:15,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:44:15,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:44:15,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:44:15,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:44:15,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:44:15,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:44:15,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:44:15,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:44:15,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:44:15,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:44:15,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:44:15,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:44:15,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:44:15,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:44:15,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:44:15,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:44:15,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:44:15,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:44:15,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:44:15,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:44:15,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:44:15,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:44:15,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:44:15,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:44:15,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:44:15,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:44:15,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:44:15,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:44:15,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:44:15,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:44:15,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:44:15,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:44:15,071 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:44:15,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:44:15,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:44:15,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:44:15,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:44:15,073 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:44:15,100 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:44:15,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:44:15,100 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:44:15,101 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:44:15,101 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:44:15,101 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:44:15,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:44:15,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:44:15,102 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:44:15,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:44:15,103 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:44:15,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:44:15,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:44:15,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:44:15,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:44:15,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:44:15,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:44:15,104 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:44:15,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:44:15,104 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:44:15,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:44:15,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:44:15,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:44:15,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:44:15,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:44:15,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:44:15,106 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:44:15,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:44:15,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:44:15,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:44:15,106 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:44:15,106 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:44:15,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:44:15,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:44:15,107 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d16ca7995627bebd6b25714c6cdb7cb5a1d05438c2bab197d8d1545133b2c07a [2021-12-15 11:44:15,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:44:15,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:44:15,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:44:15,328 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:44:15,329 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:44:15,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/Haystacks-12.c [2021-12-15 11:44:15,385 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa06a559b/2eaa944eb7ba43bfba7b8325435336ca/FLAG168323989 [2021-12-15 11:44:15,821 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:44:15,823 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Haystacks-12.c [2021-12-15 11:44:15,836 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa06a559b/2eaa944eb7ba43bfba7b8325435336ca/FLAG168323989 [2021-12-15 11:44:15,856 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa06a559b/2eaa944eb7ba43bfba7b8325435336ca [2021-12-15 11:44:15,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:44:15,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:44:15,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:44:15,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:44:15,862 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:44:15,863 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:44:15" (1/1) ... [2021-12-15 11:44:15,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@725d8c4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:15, skipping insertion in model container [2021-12-15 11:44:15,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:44:15" (1/1) ... [2021-12-15 11:44:15,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:44:15,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:44:16,257 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/xcsp/Haystacks-12.c[47440,47453] [2021-12-15 11:44:16,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:44:16,279 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:44:16,377 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/xcsp/Haystacks-12.c[47440,47453] [2021-12-15 11:44:16,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:44:16,388 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:44:16,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:16 WrapperNode [2021-12-15 11:44:16,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:44:16,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:44:16,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:44:16,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:44:16,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:16" (1/1) ... [2021-12-15 11:44:16,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:16" (1/1) ... [2021-12-15 11:44:16,475 INFO L137 Inliner]: procedures = 13, calls = 1219, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1805 [2021-12-15 11:44:16,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:44:16,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:44:16,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:44:16,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:44:16,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:16" (1/1) ... [2021-12-15 11:44:16,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:16" (1/1) ... [2021-12-15 11:44:16,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:16" (1/1) ... [2021-12-15 11:44:16,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:16" (1/1) ... [2021-12-15 11:44:16,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:16" (1/1) ... [2021-12-15 11:44:16,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:16" (1/1) ... [2021-12-15 11:44:16,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:16" (1/1) ... [2021-12-15 11:44:16,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:44:16,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:44:16,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:44:16,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:44:16,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:16" (1/1) ... [2021-12-15 11:44:16,578 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:44:16,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:44:16,596 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 11:44:16,602 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 11:44:16,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:44:16,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:44:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:44:16,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:44:16,628 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2021-12-15 11:44:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2021-12-15 11:44:16,738 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:44:16,740 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:44:17,640 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:44:17,656 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:44:17,656 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 11:44:17,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:44:17 BoogieIcfgContainer [2021-12-15 11:44:17,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:44:17,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:44:17,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:44:17,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:44:17,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:44:15" (1/3) ... [2021-12-15 11:44:17,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f617c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:44:17, skipping insertion in model container [2021-12-15 11:44:17,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:16" (2/3) ... [2021-12-15 11:44:17,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f617c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:44:17, skipping insertion in model container [2021-12-15 11:44:17,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:44:17" (3/3) ... [2021-12-15 11:44:17,666 INFO L111 eAbstractionObserver]: Analyzing ICFG Haystacks-12.c [2021-12-15 11:44:17,669 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:44:17,670 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:44:17,713 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:44:17,718 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 11:44:17,718 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:44:17,759 INFO L276 IsEmpty]: Start isEmpty. Operand has 1367 states, 152 states have (on average 1.013157894736842) internal successors, (154), 153 states have internal predecessors, (154), 1212 states have call successors, (1212), 1 states have call predecessors, (1212), 1 states have return successors, (1212), 1212 states have call predecessors, (1212), 1212 states have call successors, (1212) [2021-12-15 11:44:18,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6208 [2021-12-15 11:44:18,124 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:44:18,127 INFO L514 BasicCegarLoop]: trace histogram [1212, 1212, 1212, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:44:18,127 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:44:18,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:44:18,132 INFO L85 PathProgramCache]: Analyzing trace with hash -535504740, now seen corresponding path program 1 times [2021-12-15 11:44:18,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:44:18,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523233930] [2021-12-15 11:44:18,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:44:18,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:44:18,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:44:18,182 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 11:44:18,189 INFO L158 Benchmark]: Toolchain (without parser) took 2328.46ms. Allocated memory was 81.8MB in the beginning and 239.1MB in the end (delta: 157.3MB). Free memory was 57.3MB in the beginning and 96.1MB in the end (delta: -38.9MB). Peak memory consumption was 127.4MB. Max. memory is 16.1GB. [2021-12-15 11:44:18,190 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 81.8MB. Free memory was 60.2MB in the beginning and 60.2MB in the end (delta: 45.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:44:18,190 INFO L158 Benchmark]: CACSL2BoogieTranslator took 529.19ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 57.1MB in the beginning and 68.4MB in the end (delta: -11.3MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2021-12-15 11:44:18,191 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.32ms. Allocated memory is still 104.9MB. Free memory was 68.0MB in the beginning and 55.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 11:44:18,191 INFO L158 Benchmark]: Boogie Preprocessor took 94.01ms. Allocated memory is still 104.9MB. Free memory was 55.8MB in the beginning and 69.9MB in the end (delta: -14.1MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2021-12-15 11:44:18,195 INFO L158 Benchmark]: RCFGBuilder took 1087.50ms. Allocated memory was 104.9MB in the beginning and 169.9MB in the end (delta: 65.0MB). Free memory was 69.4MB in the beginning and 112.1MB in the end (delta: -42.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2021-12-15 11:44:18,196 INFO L158 Benchmark]: TraceAbstraction took 527.29ms. Allocated memory was 169.9MB in the beginning and 239.1MB in the end (delta: 69.2MB). Free memory was 112.1MB in the beginning and 96.1MB in the end (delta: 16.0MB). Peak memory consumption was 94.8MB. Max. memory is 16.1GB. [2021-12-15 11:44:18,201 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 81.8MB. Free memory was 60.2MB in the beginning and 60.2MB in the end (delta: 45.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 529.19ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 57.1MB in the beginning and 68.4MB in the end (delta: -11.3MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.32ms. Allocated memory is still 104.9MB. Free memory was 68.0MB in the beginning and 55.8MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.01ms. Allocated memory is still 104.9MB. Free memory was 55.8MB in the beginning and 69.9MB in the end (delta: -14.1MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1087.50ms. Allocated memory was 104.9MB in the beginning and 169.9MB in the end (delta: 65.0MB). Free memory was 69.4MB in the beginning and 112.1MB in the end (delta: -42.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 527.29ms. Allocated memory was 169.9MB in the beginning and 239.1MB in the end (delta: 69.2MB). Free memory was 112.1MB in the beginning and 96.1MB in the end (delta: 16.0MB). Peak memory consumption was 94.8MB. 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 11:44:18,227 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/xcsp/Haystacks-12.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 d16ca7995627bebd6b25714c6cdb7cb5a1d05438c2bab197d8d1545133b2c07a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:44:19,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:44:19,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:44:19,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:44:19,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:44:19,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:44:19,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:44:19,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:44:19,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:44:19,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:44:19,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:44:19,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:44:19,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:44:19,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:44:19,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:44:19,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:44:19,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:44:19,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:44:19,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:44:19,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:44:19,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:44:19,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:44:19,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:44:19,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:44:19,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:44:19,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:44:19,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:44:19,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:44:19,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:44:19,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:44:19,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:44:19,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:44:19,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:44:19,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:44:19,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:44:19,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:44:19,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:44:19,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:44:19,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:44:19,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:44:19,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:44:19,925 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:44:19,950 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:44:19,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:44:19,951 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:44:19,952 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:44:19,952 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:44:19,953 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:44:19,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:44:19,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:44:19,954 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:44:19,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:44:19,955 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:44:19,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:44:19,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:44:19,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:44:19,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:44:19,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:44:19,955 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:44:19,956 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:44:19,956 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:44:19,956 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:44:19,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:44:19,956 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:44:19,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:44:19,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:44:19,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:44:19,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:44:19,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:44:19,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:44:19,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:44:19,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:44:19,958 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:44:19,958 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:44:19,958 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:44:19,958 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:44:19,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:44:19,959 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:44:19,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:44:19,959 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d16ca7995627bebd6b25714c6cdb7cb5a1d05438c2bab197d8d1545133b2c07a [2021-12-15 11:44:20,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:44:20,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:44:20,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:44:20,262 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:44:20,263 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:44:20,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/Haystacks-12.c [2021-12-15 11:44:20,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42041996e/ba96c2fe8fa04c6689d88da744cd5aad/FLAG2c5ce6b95 [2021-12-15 11:44:20,769 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:44:20,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Haystacks-12.c [2021-12-15 11:44:20,788 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42041996e/ba96c2fe8fa04c6689d88da744cd5aad/FLAG2c5ce6b95 [2021-12-15 11:44:20,801 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42041996e/ba96c2fe8fa04c6689d88da744cd5aad [2021-12-15 11:44:20,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:44:20,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:44:20,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:44:20,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:44:20,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:44:20,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:44:20" (1/1) ... [2021-12-15 11:44:20,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c143213 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:20, skipping insertion in model container [2021-12-15 11:44:20,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:44:20" (1/1) ... [2021-12-15 11:44:20,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:44:20,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:44:21,196 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/xcsp/Haystacks-12.c[47440,47453] [2021-12-15 11:44:21,221 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:44:21,230 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:44:21,345 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/xcsp/Haystacks-12.c[47440,47453] [2021-12-15 11:44:21,354 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:44:21,365 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:44:21,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:21 WrapperNode [2021-12-15 11:44:21,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:44:21,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:44:21,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:44:21,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:44:21,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:21" (1/1) ... [2021-12-15 11:44:21,406 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:21" (1/1) ... [2021-12-15 11:44:21,486 INFO L137 Inliner]: procedures = 13, calls = 1219, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1661 [2021-12-15 11:44:21,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:44:21,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:44:21,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:44:21,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:44:21,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:21" (1/1) ... [2021-12-15 11:44:21,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:21" (1/1) ... [2021-12-15 11:44:21,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:21" (1/1) ... [2021-12-15 11:44:21,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:21" (1/1) ... [2021-12-15 11:44:21,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:21" (1/1) ... [2021-12-15 11:44:21,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:21" (1/1) ... [2021-12-15 11:44:21,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:21" (1/1) ... [2021-12-15 11:44:21,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:44:21,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:44:21,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:44:21,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:44:21,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:21" (1/1) ... [2021-12-15 11:44:21,600 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:44:21,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:44:21,654 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 11:44:21,691 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 11:44:21,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:44:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:44:21,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:44:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:44:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2021-12-15 11:44:21,717 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2021-12-15 11:44:21,905 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:44:21,906 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:44:22,707 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:44:22,723 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:44:22,724 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 11:44:22,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:44:22 BoogieIcfgContainer [2021-12-15 11:44:22,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:44:22,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:44:22,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:44:22,730 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:44:22,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:44:20" (1/3) ... [2021-12-15 11:44:22,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670f88f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:44:22, skipping insertion in model container [2021-12-15 11:44:22,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:21" (2/3) ... [2021-12-15 11:44:22,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@670f88f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:44:22, skipping insertion in model container [2021-12-15 11:44:22,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:44:22" (3/3) ... [2021-12-15 11:44:22,732 INFO L111 eAbstractionObserver]: Analyzing ICFG Haystacks-12.c [2021-12-15 11:44:22,736 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:44:22,736 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:44:22,781 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:44:22,787 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 11:44:22,787 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:44:22,833 INFO L276 IsEmpty]: Start isEmpty. Operand has 1367 states, 152 states have (on average 1.013157894736842) internal successors, (154), 153 states have internal predecessors, (154), 1212 states have call successors, (1212), 1 states have call predecessors, (1212), 1 states have return successors, (1212), 1212 states have call predecessors, (1212), 1212 states have call successors, (1212) [2021-12-15 11:44:23,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6208 [2021-12-15 11:44:23,127 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:44:23,130 INFO L514 BasicCegarLoop]: trace histogram [1212, 1212, 1212, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:44:23,130 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:44:23,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:44:23,135 INFO L85 PathProgramCache]: Analyzing trace with hash -535504740, now seen corresponding path program 1 times [2021-12-15 11:44:23,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:44:23,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916294047] [2021-12-15 11:44:23,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:44:23,156 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:44:23,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:44:23,158 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 11:44:23,159 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 11:44:23,222 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 11:44:23,420 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 11:44:23,420 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 11:44:23,424 INFO L158 Benchmark]: Toolchain (without parser) took 2618.41ms. Allocated memory was 54.5MB in the beginning and 209.7MB in the end (delta: 155.2MB). Free memory was 28.1MB in the beginning and 102.4MB in the end (delta: -74.3MB). Peak memory consumption was 117.3MB. Max. memory is 16.1GB. [2021-12-15 11:44:23,424 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 54.5MB. Free memory was 36.3MB in the beginning and 36.2MB in the end (delta: 70.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:44:23,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 560.39ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 27.9MB in the beginning and 34.6MB in the end (delta: -6.7MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2021-12-15 11:44:23,425 INFO L158 Benchmark]: Boogie Procedure Inliner took 119.51ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 34.6MB in the beginning and 55.9MB in the end (delta: -21.4MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2021-12-15 11:44:23,426 INFO L158 Benchmark]: Boogie Preprocessor took 107.24ms. Allocated memory is still 90.2MB. Free memory was 55.9MB in the beginning and 48.7MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:44:23,426 INFO L158 Benchmark]: RCFGBuilder took 1131.56ms. Allocated memory was 90.2MB in the beginning and 140.5MB in the end (delta: 50.3MB). Free memory was 48.7MB in the beginning and 81.2MB in the end (delta: -32.5MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2021-12-15 11:44:23,427 INFO L158 Benchmark]: TraceAbstraction took 694.65ms. Allocated memory was 140.5MB in the beginning and 209.7MB in the end (delta: 69.2MB). Free memory was 80.0MB in the beginning and 102.4MB in the end (delta: -22.4MB). Peak memory consumption was 82.7MB. Max. memory is 16.1GB. [2021-12-15 11:44:23,429 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 54.5MB. Free memory was 36.3MB in the beginning and 36.2MB in the end (delta: 70.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 560.39ms. Allocated memory was 54.5MB in the beginning and 71.3MB in the end (delta: 16.8MB). Free memory was 27.9MB in the beginning and 34.6MB in the end (delta: -6.7MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 119.51ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 34.6MB in the beginning and 55.9MB in the end (delta: -21.4MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 107.24ms. Allocated memory is still 90.2MB. Free memory was 55.9MB in the beginning and 48.7MB in the end (delta: 7.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1131.56ms. Allocated memory was 90.2MB in the beginning and 140.5MB in the end (delta: 50.3MB). Free memory was 48.7MB in the beginning and 81.2MB in the end (delta: -32.5MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * TraceAbstraction took 694.65ms. Allocated memory was 140.5MB in the beginning and 209.7MB in the end (delta: 69.2MB). Free memory was 80.0MB in the beginning and 102.4MB in the end (delta: -22.4MB). Peak memory consumption was 82.7MB. 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 11:44:23,463 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