./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/aim-100-2-0-unsat-2.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/aim-100-2-0-unsat-2.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 8c59ac2422c7d09abbde792b465a04be84caaab18c703e00eaf31ad156588d1a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:44:33,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:44:33,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:44:33,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:44:33,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:44:33,972 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:44:33,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:44:33,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:44:33,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:44:34,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:44:34,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:44:34,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:44:34,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:44:34,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:44:34,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:44:34,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:44:34,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:44:34,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:44:34,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:44:34,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:44:34,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:44:34,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:44:34,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:44:34,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:44:34,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:44:34,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:44:34,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:44:34,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:44:34,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:44:34,027 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:44:34,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:44:34,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:44:34,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:44:34,032 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:44:34,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:44:34,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:44:34,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:44:34,033 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:44:34,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:44:34,034 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:44:34,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:44:34,037 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:44:34,054 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:44:34,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:44:34,058 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:44:34,058 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:44:34,059 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:44:34,059 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:44:34,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:44:34,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:44:34,060 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:44:34,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:44:34,060 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:44:34,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:44:34,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:44:34,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:44:34,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:44:34,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:44:34,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:44:34,061 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:44:34,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:44:34,062 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:44:34,062 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:44:34,062 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:44:34,062 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:44:34,062 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:44:34,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:44:34,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:44:34,063 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:44:34,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:44:34,064 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:44:34,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:44:34,064 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:44:34,064 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:44:34,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:44:34,065 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:44:34,065 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c59ac2422c7d09abbde792b465a04be84caaab18c703e00eaf31ad156588d1a [2021-12-15 11:44:34,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:44:34,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:44:34,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:44:34,307 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:44:34,308 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:44:34,309 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/aim-100-2-0-unsat-2.c [2021-12-15 11:44:34,354 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/538a451d9/3bf60c86bb0d4045a69093a579d607e8/FLAG4eb1af20b [2021-12-15 11:44:34,808 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:44:34,809 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/aim-100-2-0-unsat-2.c [2021-12-15 11:44:34,816 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/538a451d9/3bf60c86bb0d4045a69093a579d607e8/FLAG4eb1af20b [2021-12-15 11:44:35,209 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/538a451d9/3bf60c86bb0d4045a69093a579d607e8 [2021-12-15 11:44:35,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:44:35,229 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:44:35,241 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:44:35,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:44:35,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:44:35,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:44:35" (1/1) ... [2021-12-15 11:44:35,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29454749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:35, skipping insertion in model container [2021-12-15 11:44:35,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:44:35" (1/1) ... [2021-12-15 11:44:35,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:44:35,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:44:35,714 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/aim-100-2-0-unsat-2.c[21261,21274] [2021-12-15 11:44:35,725 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:44:35,735 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:44:35,827 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/aim-100-2-0-unsat-2.c[21261,21274] [2021-12-15 11:44:35,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:44:35,843 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:44:35,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:35 WrapperNode [2021-12-15 11:44:35,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:44:35,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:44:35,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:44:35,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:44:35,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:35" (1/1) ... [2021-12-15 11:44:35,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:35" (1/1) ... [2021-12-15 11:44:35,924 INFO L137 Inliner]: procedures = 13, calls = 399, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 809 [2021-12-15 11:44:35,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:44:35,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:44:35,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:44:35,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:44:35,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:35" (1/1) ... [2021-12-15 11:44:35,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:35" (1/1) ... [2021-12-15 11:44:35,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:35" (1/1) ... [2021-12-15 11:44:35,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:35" (1/1) ... [2021-12-15 11:44:35,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:35" (1/1) ... [2021-12-15 11:44:35,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:35" (1/1) ... [2021-12-15 11:44:35,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:35" (1/1) ... [2021-12-15 11:44:35,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:44:35,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:44:35,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:44:35,990 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:44:35,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:35" (1/1) ... [2021-12-15 11:44:35,995 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:44:36,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:44:36,013 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 11:44:36,032 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 11:44:36,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:44:36,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:44:36,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:44:36,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:44:36,041 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2021-12-15 11:44:36,042 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2021-12-15 11:44:36,163 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:44:36,180 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:44:36,611 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:44:36,621 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:44:36,621 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 11:44:36,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:44:36 BoogieIcfgContainer [2021-12-15 11:44:36,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:44:36,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:44:36,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:44:36,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:44:36,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:44:35" (1/3) ... [2021-12-15 11:44:36,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7287d89b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:44:36, skipping insertion in model container [2021-12-15 11:44:36,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:35" (2/3) ... [2021-12-15 11:44:36,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7287d89b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:44:36, skipping insertion in model container [2021-12-15 11:44:36,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:44:36" (3/3) ... [2021-12-15 11:44:36,632 INFO L111 eAbstractionObserver]: Analyzing ICFG aim-100-2-0-unsat-2.c [2021-12-15 11:44:36,637 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:44:36,637 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:44:36,726 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:44:36,731 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 11:44:36,731 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:44:36,772 INFO L276 IsEmpty]: Start isEmpty. Operand has 503 states, 108 states have (on average 1.0185185185185186) internal successors, (110), 109 states have internal predecessors, (110), 392 states have call successors, (392), 1 states have call predecessors, (392), 1 states have return successors, (392), 392 states have call predecessors, (392), 392 states have call successors, (392) [2021-12-15 11:44:36,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2064 [2021-12-15 11:44:36,918 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:44:36,920 INFO L514 BasicCegarLoop]: trace histogram [392, 392, 392, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:44:36,921 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:44:36,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:44:36,925 INFO L85 PathProgramCache]: Analyzing trace with hash -715734794, now seen corresponding path program 1 times [2021-12-15 11:44:36,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:44:36,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007622674] [2021-12-15 11:44:36,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:44:36,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:44:36,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:44:36,979 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 11:44:36,986 INFO L158 Benchmark]: Toolchain (without parser) took 1756.52ms. Allocated memory was 102.8MB in the beginning and 178.3MB in the end (delta: 75.5MB). Free memory was 76.8MB in the beginning and 131.2MB in the end (delta: -54.4MB). Peak memory consumption was 51.8MB. Max. memory is 16.1GB. [2021-12-15 11:44:36,987 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory was 46.6MB in the beginning and 46.6MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:44:36,988 INFO L158 Benchmark]: CACSL2BoogieTranslator took 602.68ms. Allocated memory is still 102.8MB. Free memory was 76.5MB in the beginning and 76.7MB in the end (delta: -183.4kB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2021-12-15 11:44:36,988 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.84ms. Allocated memory is still 102.8MB. Free memory was 76.4MB in the beginning and 68.4MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 11:44:36,989 INFO L158 Benchmark]: Boogie Preprocessor took 63.81ms. Allocated memory is still 102.8MB. Free memory was 68.3MB in the beginning and 63.8MB in the end (delta: 4.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 11:44:36,989 INFO L158 Benchmark]: RCFGBuilder took 634.82ms. Allocated memory is still 102.8MB. Free memory was 63.8MB in the beginning and 57.3MB in the end (delta: 6.5MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2021-12-15 11:44:36,993 INFO L158 Benchmark]: TraceAbstraction took 359.03ms. Allocated memory was 102.8MB in the beginning and 178.3MB in the end (delta: 75.5MB). Free memory was 56.9MB in the beginning and 131.2MB in the end (delta: -74.3MB). Peak memory consumption was 30.4MB. Max. memory is 16.1GB. [2021-12-15 11:44:36,997 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory was 46.6MB in the beginning and 46.6MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 602.68ms. Allocated memory is still 102.8MB. Free memory was 76.5MB in the beginning and 76.7MB in the end (delta: -183.4kB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.84ms. Allocated memory is still 102.8MB. Free memory was 76.4MB in the beginning and 68.4MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.81ms. Allocated memory is still 102.8MB. Free memory was 68.3MB in the beginning and 63.8MB in the end (delta: 4.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 634.82ms. Allocated memory is still 102.8MB. Free memory was 63.8MB in the beginning and 57.3MB in the end (delta: 6.5MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * TraceAbstraction took 359.03ms. Allocated memory was 102.8MB in the beginning and 178.3MB in the end (delta: 75.5MB). Free memory was 56.9MB in the beginning and 131.2MB in the end (delta: -74.3MB). Peak memory consumption was 30.4MB. 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 11:44:37,028 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/aim-100-2-0-unsat-2.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 8c59ac2422c7d09abbde792b465a04be84caaab18c703e00eaf31ad156588d1a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:44:39,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:44:39,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:44:39,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:44:39,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:44:39,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:44:39,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:44:39,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:44:39,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:44:39,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:44:39,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:44:39,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:44:39,247 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:44:39,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:44:39,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:44:39,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:44:39,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:44:39,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:44:39,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:44:39,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:44:39,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:44:39,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:44:39,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:44:39,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:44:39,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:44:39,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:44:39,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:44:39,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:44:39,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:44:39,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:44:39,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:44:39,283 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:44:39,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:44:39,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:44:39,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:44:39,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:44:39,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:44:39,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:44:39,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:44:39,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:44:39,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:44:39,292 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:44:39,328 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:44:39,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:44:39,329 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:44:39,330 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:44:39,330 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:44:39,330 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:44:39,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:44:39,332 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:44:39,332 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:44:39,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:44:39,333 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:44:39,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:44:39,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:44:39,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:44:39,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:44:39,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:44:39,333 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:44:39,334 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:44:39,334 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:44:39,334 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:44:39,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:44:39,334 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:44:39,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:44:39,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:44:39,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:44:39,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:44:39,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:44:39,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:44:39,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:44:39,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:44:39,336 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:44:39,336 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:44:39,336 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:44:39,336 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:44:39,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:44:39,337 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:44:39,337 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:44:39,337 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c59ac2422c7d09abbde792b465a04be84caaab18c703e00eaf31ad156588d1a [2021-12-15 11:44:39,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:44:39,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:44:39,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:44:39,701 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:44:39,702 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:44:39,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/aim-100-2-0-unsat-2.c [2021-12-15 11:44:39,751 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de29ba3a1/d5967b1edabb4838afea47fe03063aa7/FLAG7371ce756 [2021-12-15 11:44:40,211 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:44:40,212 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/aim-100-2-0-unsat-2.c [2021-12-15 11:44:40,227 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de29ba3a1/d5967b1edabb4838afea47fe03063aa7/FLAG7371ce756 [2021-12-15 11:44:40,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de29ba3a1/d5967b1edabb4838afea47fe03063aa7 [2021-12-15 11:44:40,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:44:40,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:44:40,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:44:40,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:44:40,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:44:40,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:44:40" (1/1) ... [2021-12-15 11:44:40,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5760b66a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:40, skipping insertion in model container [2021-12-15 11:44:40,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:44:40" (1/1) ... [2021-12-15 11:44:40,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:44:40,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:44:40,845 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/aim-100-2-0-unsat-2.c[21261,21274] [2021-12-15 11:44:40,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:44:40,884 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:44:40,990 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/aim-100-2-0-unsat-2.c[21261,21274] [2021-12-15 11:44:40,992 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:44:41,012 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:44:41,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:41 WrapperNode [2021-12-15 11:44:41,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:44:41,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:44:41,014 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:44:41,014 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:44:41,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:41" (1/1) ... [2021-12-15 11:44:41,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:41" (1/1) ... [2021-12-15 11:44:41,122 INFO L137 Inliner]: procedures = 13, calls = 399, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 709 [2021-12-15 11:44:41,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:44:41,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:44:41,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:44:41,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:44:41,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:41" (1/1) ... [2021-12-15 11:44:41,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:41" (1/1) ... [2021-12-15 11:44:41,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:41" (1/1) ... [2021-12-15 11:44:41,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:41" (1/1) ... [2021-12-15 11:44:41,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:41" (1/1) ... [2021-12-15 11:44:41,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:41" (1/1) ... [2021-12-15 11:44:41,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:41" (1/1) ... [2021-12-15 11:44:41,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:44:41,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:44:41,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:44:41,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:44:41,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:41" (1/1) ... [2021-12-15 11:44:41,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:44:41,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:44:41,244 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 11:44:41,262 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 11:44:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:44:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:44:41,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:44:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:44:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2021-12-15 11:44:41,274 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2021-12-15 11:44:41,376 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:44:41,377 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:44:42,061 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:44:42,086 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:44:42,087 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 11:44:42,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:44:42 BoogieIcfgContainer [2021-12-15 11:44:42,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:44:42,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:44:42,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:44:42,096 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:44:42,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:44:40" (1/3) ... [2021-12-15 11:44:42,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5994d3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:44:42, skipping insertion in model container [2021-12-15 11:44:42,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:44:41" (2/3) ... [2021-12-15 11:44:42,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5994d3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:44:42, skipping insertion in model container [2021-12-15 11:44:42,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:44:42" (3/3) ... [2021-12-15 11:44:42,100 INFO L111 eAbstractionObserver]: Analyzing ICFG aim-100-2-0-unsat-2.c [2021-12-15 11:44:42,106 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:44:42,106 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:44:42,155 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:44:42,160 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 11:44:42,161 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:44:42,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 503 states, 108 states have (on average 1.0185185185185186) internal successors, (110), 109 states have internal predecessors, (110), 392 states have call successors, (392), 1 states have call predecessors, (392), 1 states have return successors, (392), 392 states have call predecessors, (392), 392 states have call successors, (392) [2021-12-15 11:44:42,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2064 [2021-12-15 11:44:42,380 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:44:42,382 INFO L514 BasicCegarLoop]: trace histogram [392, 392, 392, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:44:42,382 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:44:42,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:44:42,388 INFO L85 PathProgramCache]: Analyzing trace with hash -715734794, now seen corresponding path program 1 times [2021-12-15 11:44:42,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:44:42,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108204017] [2021-12-15 11:44:42,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:44:42,417 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:44:42,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:44:42,436 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 11:44:42,483 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 11:44:42,535 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 11:44:42,717 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 11:44:42,717 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 11:44:42,721 INFO L158 Benchmark]: Toolchain (without parser) took 2111.06ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 45.4MB in the beginning and 48.9MB in the end (delta: -3.5MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2021-12-15 11:44:42,722 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 48.2MB. Free memory was 29.8MB in the beginning and 29.8MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:44:42,722 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.46ms. Allocated memory is still 71.3MB. Free memory was 45.1MB in the beginning and 41.1MB in the end (delta: 4.0MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2021-12-15 11:44:42,723 INFO L158 Benchmark]: Boogie Procedure Inliner took 108.60ms. Allocated memory is still 71.3MB. Free memory was 41.1MB in the beginning and 33.6MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:44:42,723 INFO L158 Benchmark]: Boogie Preprocessor took 87.24ms. Allocated memory is still 71.3MB. Free memory was 33.6MB in the beginning and 48.4MB in the end (delta: -14.7MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2021-12-15 11:44:42,724 INFO L158 Benchmark]: RCFGBuilder took 879.99ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 48.4MB in the beginning and 60.9MB in the end (delta: -12.5MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2021-12-15 11:44:42,724 INFO L158 Benchmark]: TraceAbstraction took 627.19ms. Allocated memory is still 90.2MB. Free memory was 60.9MB in the beginning and 48.9MB in the end (delta: 12.0MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2021-12-15 11:44:42,726 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 48.2MB. Free memory was 29.8MB in the beginning and 29.8MB in the end (delta: 1.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.46ms. Allocated memory is still 71.3MB. Free memory was 45.1MB in the beginning and 41.1MB in the end (delta: 4.0MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 108.60ms. Allocated memory is still 71.3MB. Free memory was 41.1MB in the beginning and 33.6MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.24ms. Allocated memory is still 71.3MB. Free memory was 33.6MB in the beginning and 48.4MB in the end (delta: -14.7MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * RCFGBuilder took 879.99ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 48.4MB in the beginning and 60.9MB in the end (delta: -12.5MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. * TraceAbstraction took 627.19ms. Allocated memory is still 90.2MB. Free memory was 60.9MB in the beginning and 48.9MB in the end (delta: 12.0MB). Peak memory consumption was 31.7MB. 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 11:44:42,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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