./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-patterns/array7_pattern.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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/array7_pattern.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 85b55cdd1f26353e63ecc189ba28ba899672edc569fe3ef3f04470f2b5e667fa --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 08:45:52,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 08:45:52,682 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 08:45:52,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 08:45:52,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 08:45:52,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 08:45:52,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 08:45:52,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 08:45:52,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 08:45:52,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 08:45:52,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 08:45:52,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 08:45:52,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 08:45:52,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 08:45:52,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 08:45:52,747 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 08:45:52,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 08:45:52,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 08:45:52,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 08:45:52,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 08:45:52,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 08:45:52,761 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 08:45:52,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 08:45:52,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 08:45:52,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 08:45:52,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 08:45:52,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 08:45:52,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 08:45:52,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 08:45:52,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 08:45:52,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 08:45:52,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 08:45:52,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 08:45:52,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 08:45:52,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 08:45:52,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 08:45:52,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 08:45:52,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 08:45:52,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 08:45:52,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 08:45:52,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 08:45:52,782 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 08:45:52,817 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 08:45:52,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 08:45:52,818 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 08:45:52,819 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 08:45:52,819 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 08:45:52,819 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 08:45:52,820 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 08:45:52,820 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 08:45:52,820 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 08:45:52,821 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 08:45:52,821 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 08:45:52,822 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 08:45:52,822 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 08:45:52,822 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 08:45:52,822 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 08:45:52,822 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 08:45:52,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 08:45:52,823 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 08:45:52,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 08:45:52,823 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 08:45:52,823 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 08:45:52,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 08:45:52,824 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 08:45:52,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 08:45:52,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:45:52,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 08:45:52,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 08:45:52,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 08:45:52,826 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 08:45:52,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 08:45:52,827 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 08:45:52,827 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 08:45:52,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 08:45:52,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 08:45:52,828 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85b55cdd1f26353e63ecc189ba28ba899672edc569fe3ef3f04470f2b5e667fa [2021-12-15 08:45:53,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 08:45:53,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 08:45:53,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 08:45:53,082 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 08:45:53,082 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 08:45:53,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array7_pattern.c [2021-12-15 08:45:53,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5fe5c4e6/1b153e00897942dfae3beee3ea6ee44c/FLAG3e936a0ec [2021-12-15 08:45:53,608 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 08:45:53,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array7_pattern.c [2021-12-15 08:45:53,616 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5fe5c4e6/1b153e00897942dfae3beee3ea6ee44c/FLAG3e936a0ec [2021-12-15 08:45:53,631 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5fe5c4e6/1b153e00897942dfae3beee3ea6ee44c [2021-12-15 08:45:53,633 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 08:45:53,635 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 08:45:53,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 08:45:53,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 08:45:53,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 08:45:53,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:45:53" (1/1) ... [2021-12-15 08:45:53,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11785a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:53, skipping insertion in model container [2021-12-15 08:45:53,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:45:53" (1/1) ... [2021-12-15 08:45:53,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 08:45:53,662 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 08:45:53,780 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array7_pattern.c[1375,1388] [2021-12-15 08:45:53,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:45:53,829 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 08:45:53,841 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array7_pattern.c[1375,1388] [2021-12-15 08:45:53,871 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:45:53,882 INFO L208 MainTranslator]: Completed translation [2021-12-15 08:45:53,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:53 WrapperNode [2021-12-15 08:45:53,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 08:45:53,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 08:45:53,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 08:45:53,885 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 08:45:53,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:53" (1/1) ... [2021-12-15 08:45:53,904 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:53" (1/1) ... [2021-12-15 08:45:53,928 INFO L137 Inliner]: procedures = 16, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2021-12-15 08:45:53,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 08:45:53,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 08:45:53,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 08:45:53,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 08:45:53,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:53" (1/1) ... [2021-12-15 08:45:53,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:53" (1/1) ... [2021-12-15 08:45:53,942 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:53" (1/1) ... [2021-12-15 08:45:53,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:53" (1/1) ... [2021-12-15 08:45:53,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:53" (1/1) ... [2021-12-15 08:45:53,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:53" (1/1) ... [2021-12-15 08:45:53,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:53" (1/1) ... [2021-12-15 08:45:53,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 08:45:53,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 08:45:53,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 08:45:53,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 08:45:53,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:53" (1/1) ... [2021-12-15 08:45:53,975 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:45:53,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:45:53,996 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 08:45:54,011 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 08:45:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 08:45:54,037 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 08:45:54,038 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 08:45:54,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 08:45:54,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 08:45:54,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 08:45:54,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 08:45:54,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 08:45:54,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 08:45:54,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 08:45:54,113 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 08:45:54,115 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 08:45:54,301 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 08:45:54,306 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 08:45:54,306 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-15 08:45:54,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:45:54 BoogieIcfgContainer [2021-12-15 08:45:54,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 08:45:54,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 08:45:54,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 08:45:54,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 08:45:54,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:45:53" (1/3) ... [2021-12-15 08:45:54,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e9ade5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:45:54, skipping insertion in model container [2021-12-15 08:45:54,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:53" (2/3) ... [2021-12-15 08:45:54,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e9ade5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:45:54, skipping insertion in model container [2021-12-15 08:45:54,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:45:54" (3/3) ... [2021-12-15 08:45:54,314 INFO L111 eAbstractionObserver]: Analyzing ICFG array7_pattern.c [2021-12-15 08:45:54,318 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 08:45:54,319 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 08:45:54,354 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 08:45:54,360 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 08:45:54,360 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 08:45:54,395 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-15 08:45:54,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-15 08:45:54,401 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:45:54,402 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:45:54,403 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:45:54,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:45:54,411 INFO L85 PathProgramCache]: Analyzing trace with hash -440982883, now seen corresponding path program 1 times [2021-12-15 08:45:54,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:45:54,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30349837] [2021-12-15 08:45:54,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:45:54,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:45:54,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 08:45:54,492 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 08:45:54,503 INFO L158 Benchmark]: Toolchain (without parser) took 864.85ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 65.6MB in the beginning and 102.5MB in the end (delta: -36.9MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2021-12-15 08:45:54,504 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 96.5MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:45:54,505 INFO L158 Benchmark]: CACSL2BoogieTranslator took 246.22ms. Allocated memory is still 96.5MB. Free memory was 65.4MB in the beginning and 71.4MB in the end (delta: -6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 08:45:54,505 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.74ms. Allocated memory is still 96.5MB. Free memory was 71.4MB in the beginning and 69.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 08:45:54,506 INFO L158 Benchmark]: Boogie Preprocessor took 38.25ms. Allocated memory is still 96.5MB. Free memory was 69.5MB in the beginning and 68.5MB in the end (delta: 989.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:45:54,507 INFO L158 Benchmark]: RCFGBuilder took 339.62ms. Allocated memory is still 96.5MB. Free memory was 68.2MB in the beginning and 57.5MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 08:45:54,511 INFO L158 Benchmark]: TraceAbstraction took 190.53ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 56.9MB in the beginning and 102.5MB in the end (delta: -45.6MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2021-12-15 08:45:54,517 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 96.5MB. Free memory is still 53.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 246.22ms. Allocated memory is still 96.5MB. Free memory was 65.4MB in the beginning and 71.4MB in the end (delta: -6.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.74ms. Allocated memory is still 96.5MB. Free memory was 71.4MB in the beginning and 69.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.25ms. Allocated memory is still 96.5MB. Free memory was 69.5MB in the beginning and 68.5MB in the end (delta: 989.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 339.62ms. Allocated memory is still 96.5MB. Free memory was 68.2MB in the beginning and 57.5MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 190.53ms. Allocated memory was 96.5MB in the beginning and 125.8MB in the end (delta: 29.4MB). Free memory was 56.9MB in the beginning and 102.5MB in the end (delta: -45.6MB). Peak memory consumption was 12.7MB. 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 08:45:54,551 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/array7_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 85b55cdd1f26353e63ecc189ba28ba899672edc569fe3ef3f04470f2b5e667fa --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 08:45:56,417 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 08:45:56,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 08:45:56,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 08:45:56,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 08:45:56,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 08:45:56,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 08:45:56,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 08:45:56,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 08:45:56,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 08:45:56,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 08:45:56,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 08:45:56,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 08:45:56,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 08:45:56,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 08:45:56,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 08:45:56,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 08:45:56,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 08:45:56,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 08:45:56,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 08:45:56,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 08:45:56,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 08:45:56,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 08:45:56,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 08:45:56,493 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 08:45:56,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 08:45:56,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 08:45:56,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 08:45:56,502 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 08:45:56,503 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 08:45:56,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 08:45:56,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 08:45:56,505 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 08:45:56,506 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 08:45:56,507 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 08:45:56,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 08:45:56,508 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 08:45:56,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 08:45:56,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 08:45:56,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 08:45:56,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 08:45:56,512 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 08:45:56,541 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 08:45:56,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 08:45:56,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 08:45:56,542 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 08:45:56,543 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 08:45:56,543 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 08:45:56,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 08:45:56,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 08:45:56,545 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 08:45:56,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 08:45:56,546 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 08:45:56,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 08:45:56,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 08:45:56,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 08:45:56,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 08:45:56,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 08:45:56,547 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 08:45:56,547 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 08:45:56,547 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 08:45:56,547 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 08:45:56,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 08:45:56,548 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 08:45:56,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 08:45:56,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 08:45:56,548 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 08:45:56,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 08:45:56,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:45:56,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 08:45:56,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 08:45:56,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 08:45:56,549 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 08:45:56,550 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 08:45:56,550 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 08:45:56,550 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 08:45:56,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 08:45:56,550 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 08:45:56,551 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 08:45:56,551 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85b55cdd1f26353e63ecc189ba28ba899672edc569fe3ef3f04470f2b5e667fa [2021-12-15 08:45:56,864 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 08:45:56,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 08:45:56,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 08:45:56,894 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 08:45:56,894 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 08:45:56,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array7_pattern.c [2021-12-15 08:45:56,949 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5222bbb8d/11f326deff0140a884964cb181b4a01a/FLAG1a4f8e512 [2021-12-15 08:45:57,386 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 08:45:57,387 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array7_pattern.c [2021-12-15 08:45:57,394 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5222bbb8d/11f326deff0140a884964cb181b4a01a/FLAG1a4f8e512 [2021-12-15 08:45:57,412 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5222bbb8d/11f326deff0140a884964cb181b4a01a [2021-12-15 08:45:57,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 08:45:57,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 08:45:57,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 08:45:57,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 08:45:57,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 08:45:57,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:45:57" (1/1) ... [2021-12-15 08:45:57,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6354453d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:57, skipping insertion in model container [2021-12-15 08:45:57,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:45:57" (1/1) ... [2021-12-15 08:45:57,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 08:45:57,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 08:45:57,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array7_pattern.c[1375,1388] [2021-12-15 08:45:57,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:45:57,673 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 08:45:57,686 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array7_pattern.c[1375,1388] [2021-12-15 08:45:57,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:45:57,730 INFO L208 MainTranslator]: Completed translation [2021-12-15 08:45:57,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:57 WrapperNode [2021-12-15 08:45:57,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 08:45:57,733 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 08:45:57,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 08:45:57,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 08:45:57,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:57" (1/1) ... [2021-12-15 08:45:57,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:57" (1/1) ... [2021-12-15 08:45:57,780 INFO L137 Inliner]: procedures = 18, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 85 [2021-12-15 08:45:57,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 08:45:57,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 08:45:57,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 08:45:57,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 08:45:57,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:57" (1/1) ... [2021-12-15 08:45:57,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:57" (1/1) ... [2021-12-15 08:45:57,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:57" (1/1) ... [2021-12-15 08:45:57,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:57" (1/1) ... [2021-12-15 08:45:57,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:57" (1/1) ... [2021-12-15 08:45:57,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:57" (1/1) ... [2021-12-15 08:45:57,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:57" (1/1) ... [2021-12-15 08:45:57,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 08:45:57,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 08:45:57,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 08:45:57,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 08:45:57,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:57" (1/1) ... [2021-12-15 08:45:57,840 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:45:57,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:45:57,869 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 08:45:57,895 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 08:45:57,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 08:45:57,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 08:45:57,916 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 08:45:57,916 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 08:45:57,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 08:45:57,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 08:45:57,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 08:45:57,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 08:45:57,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 08:45:57,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 08:45:58,010 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 08:45:58,011 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 08:45:58,255 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 08:45:58,266 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 08:45:58,266 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-15 08:45:58,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:45:58 BoogieIcfgContainer [2021-12-15 08:45:58,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 08:45:58,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 08:45:58,270 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 08:45:58,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 08:45:58,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:45:57" (1/3) ... [2021-12-15 08:45:58,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41e04e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:45:58, skipping insertion in model container [2021-12-15 08:45:58,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:45:57" (2/3) ... [2021-12-15 08:45:58,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41e04e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:45:58, skipping insertion in model container [2021-12-15 08:45:58,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:45:58" (3/3) ... [2021-12-15 08:45:58,289 INFO L111 eAbstractionObserver]: Analyzing ICFG array7_pattern.c [2021-12-15 08:45:58,293 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 08:45:58,293 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 08:45:58,331 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 08:45:58,336 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 08:45:58,336 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 08:45:58,351 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 20 states have (on average 1.5) internal successors, (30), 21 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-15 08:45:58,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-15 08:45:58,355 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:45:58,355 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:45:58,356 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:45:58,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:45:58,360 INFO L85 PathProgramCache]: Analyzing trace with hash -440982883, now seen corresponding path program 1 times [2021-12-15 08:45:58,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 08:45:58,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773850241] [2021-12-15 08:45:58,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:45:58,371 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 08:45:58,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 08:45:58,375 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 08:45:58,383 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 08:45:58,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-15 08:45:58,616 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 08:45:58,616 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 08:45:58,620 INFO L158 Benchmark]: Toolchain (without parser) took 1202.91ms. Allocated memory was 60.8MB in the beginning and 83.9MB in the end (delta: 23.1MB). Free memory was 39.6MB in the beginning and 57.8MB in the end (delta: -18.2MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2021-12-15 08:45:58,620 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 43.1MB in the end (delta: 42.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:45:58,621 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.51ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 43.1MB in the end (delta: -3.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 08:45:58,622 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.03ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 41.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 08:45:58,622 INFO L158 Benchmark]: Boogie Preprocessor took 49.75ms. Allocated memory is still 60.8MB. Free memory was 41.4MB in the beginning and 39.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:45:58,623 INFO L158 Benchmark]: RCFGBuilder took 436.22ms. Allocated memory was 60.8MB in the beginning and 83.9MB in the end (delta: 23.1MB). Free memory was 39.9MB in the beginning and 66.7MB in the end (delta: -26.8MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2021-12-15 08:45:58,623 INFO L158 Benchmark]: TraceAbstraction took 348.93ms. Allocated memory is still 83.9MB. Free memory was 66.1MB in the beginning and 57.8MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 08:45:58,626 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 43.1MB in the end (delta: 42.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.51ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 43.1MB in the end (delta: -3.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.03ms. Allocated memory is still 60.8MB. Free memory was 43.1MB in the beginning and 41.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.75ms. Allocated memory is still 60.8MB. Free memory was 41.4MB in the beginning and 39.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 436.22ms. Allocated memory was 60.8MB in the beginning and 83.9MB in the end (delta: 23.1MB). Free memory was 39.9MB in the beginning and 66.7MB in the end (delta: -26.8MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. * TraceAbstraction took 348.93ms. Allocated memory is still 83.9MB. Free memory was 66.1MB in the beginning and 57.8MB in the end (delta: 8.3MB). 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 08:45:58,658 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