./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/n.c40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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/loops/n.c40.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 ed3f8420ae2f88e8ad9c7f42b645f73b3c08f37e ........................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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/loops/n.c40.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 ed3f8420ae2f88e8ad9c7f42b645f73b3c08f37e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 10:33:21,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 10:33:21,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 10:33:21,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 10:33:21,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 10:33:21,208 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 10:33:21,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 10:33:21,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 10:33:21,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 10:33:21,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 10:33:21,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 10:33:21,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 10:33:21,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 10:33:21,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 10:33:21,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 10:33:21,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 10:33:21,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 10:33:21,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 10:33:21,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 10:33:21,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 10:33:21,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 10:33:21,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 10:33:21,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 10:33:21,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 10:33:21,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 10:33:21,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 10:33:21,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 10:33:21,259 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 10:33:21,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 10:33:21,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 10:33:21,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 10:33:21,262 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 10:33:21,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 10:33:21,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 10:33:21,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 10:33:21,265 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 10:33:21,266 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 10:33:21,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 10:33:21,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 10:33:21,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 10:33:21,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 10:33:21,272 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 10:33:21,317 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 10:33:21,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 10:33:21,318 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 10:33:21,318 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 10:33:21,320 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 10:33:21,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 10:33:21,320 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 10:33:21,321 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 10:33:21,321 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 10:33:21,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 10:33:21,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 10:33:21,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 10:33:21,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 10:33:21,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 10:33:21,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 10:33:21,323 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 10:33:21,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 10:33:21,323 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 10:33:21,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 10:33:21,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 10:33:21,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 10:33:21,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 10:33:21,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 10:33:21,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 10:33:21,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 10:33:21,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 10:33:21,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 10:33:21,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 10:33:21,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 10:33:21,336 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 10:33:21,336 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed3f8420ae2f88e8ad9c7f42b645f73b3c08f37e [2021-08-29 10:33:21,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 10:33:21,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 10:33:21,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 10:33:21,670 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 10:33:21,670 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 10:33:21,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/n.c40.c [2021-08-29 10:33:21,732 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/061397c92/a7370c8dfad14f29bf987f14e4d0ac86/FLAG05495e96d [2021-08-29 10:33:22,158 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 10:33:22,159 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/n.c40.c [2021-08-29 10:33:22,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/061397c92/a7370c8dfad14f29bf987f14e4d0ac86/FLAG05495e96d [2021-08-29 10:33:22,570 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/061397c92/a7370c8dfad14f29bf987f14e4d0ac86 [2021-08-29 10:33:22,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 10:33:22,575 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 10:33:22,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 10:33:22,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 10:33:22,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 10:33:22,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:33:22" (1/1) ... [2021-08-29 10:33:22,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@610af0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:22, skipping insertion in model container [2021-08-29 10:33:22,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:33:22" (1/1) ... [2021-08-29 10:33:22,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 10:33:22,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 10:33:22,709 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/n.c40.c[498,511] [2021-08-29 10:33:22,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 10:33:22,721 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 10:33:22,732 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/n.c40.c[498,511] [2021-08-29 10:33:22,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 10:33:22,744 INFO L208 MainTranslator]: Completed translation [2021-08-29 10:33:22,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:22 WrapperNode [2021-08-29 10:33:22,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 10:33:22,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 10:33:22,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 10:33:22,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 10:33:22,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:22" (1/1) ... [2021-08-29 10:33:22,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:22" (1/1) ... [2021-08-29 10:33:22,814 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 10:33:22,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 10:33:22,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 10:33:22,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 10:33:22,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:22" (1/1) ... [2021-08-29 10:33:22,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:22" (1/1) ... [2021-08-29 10:33:22,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:22" (1/1) ... [2021-08-29 10:33:22,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:22" (1/1) ... [2021-08-29 10:33:22,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:22" (1/1) ... [2021-08-29 10:33:22,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:22" (1/1) ... [2021-08-29 10:33:22,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:22" (1/1) ... [2021-08-29 10:33:22,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 10:33:22,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 10:33:22,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 10:33:22,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 10:33:22,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:22" (1/1) ... [2021-08-29 10:33:22,864 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 10:33:22,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 10:33:22,894 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) [2021-08-29 10:33:22,915 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 [2021-08-29 10:33:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 10:33:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 10:33:22,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 10:33:22,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 10:33:22,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 10:33:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 10:33:23,107 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 10:33:23,108 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-29 10:33:23,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:33:23 BoogieIcfgContainer [2021-08-29 10:33:23,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 10:33:23,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 10:33:23,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 10:33:23,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 10:33:23,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 10:33:22" (1/3) ... [2021-08-29 10:33:23,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9d9957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:33:23, skipping insertion in model container [2021-08-29 10:33:23,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:22" (2/3) ... [2021-08-29 10:33:23,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9d9957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:33:23, skipping insertion in model container [2021-08-29 10:33:23,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:33:23" (3/3) ... [2021-08-29 10:33:23,116 INFO L111 eAbstractionObserver]: Analyzing ICFG n.c40.c [2021-08-29 10:33:23,120 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 10:33:23,120 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 10:33:23,178 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 10:33:23,187 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-08-29 10:33:23,188 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 10:33:23,201 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:23,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-29 10:33:23,220 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 10:33:23,221 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-29 10:33:23,222 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 10:33:23,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 10:33:23,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1813493552, now seen corresponding path program 1 times [2021-08-29 10:33:23,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 10:33:23,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543994223] [2021-08-29 10:33:23,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 10:33:23,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 10:33:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 10:33:23,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 10:33:23,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 10:33:23,452 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543994223] [2021-08-29 10:33:23,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543994223] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 10:33:23,453 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 10:33:23,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 10:33:23,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345421035] [2021-08-29 10:33:23,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 10:33:23,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 10:33:23,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 10:33:23,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 10:33:23,493 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:23,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 10:33:23,554 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2021-08-29 10:33:23,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 10:33:23,556 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-08-29 10:33:23,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 10:33:23,562 INFO L225 Difference]: With dead ends: 22 [2021-08-29 10:33:23,564 INFO L226 Difference]: Without dead ends: 9 [2021-08-29 10:33:23,567 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 10:33:23,572 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.22ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.54ms IncrementalHoareTripleChecker+Time [2021-08-29 10:33:23,573 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 14 Unknown, 0 Unchecked, 0.22ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 48.54ms Time] [2021-08-29 10:33:23,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-08-29 10:33:23,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-08-29 10:33:23,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:23,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-08-29 10:33:23,604 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2021-08-29 10:33:23,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 10:33:23,604 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-08-29 10:33:23,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:23,604 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-08-29 10:33:23,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-29 10:33:23,605 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 10:33:23,605 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 10:33:23,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 10:33:23,606 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 10:33:23,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 10:33:23,607 INFO L82 PathProgramCache]: Analyzing trace with hash 177687787, now seen corresponding path program 1 times [2021-08-29 10:33:23,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 10:33:23,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930893553] [2021-08-29 10:33:23,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 10:33:23,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 10:33:23,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 10:33:23,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 10:33:23,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 10:33:23,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930893553] [2021-08-29 10:33:23,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930893553] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 10:33:23,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 10:33:23,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-29 10:33:23,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413542340] [2021-08-29 10:33:23,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-29 10:33:23,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 10:33:23,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-29 10:33:23,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 10:33:23,690 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:23,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 10:33:23,723 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-08-29 10:33:23,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 10:33:23,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-29 10:33:23,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 10:33:23,724 INFO L225 Difference]: With dead ends: 16 [2021-08-29 10:33:23,724 INFO L226 Difference]: Without dead ends: 11 [2021-08-29 10:33:23,724 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.95ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-29 10:33:23,725 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.37ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.88ms IncrementalHoareTripleChecker+Time [2021-08-29 10:33:23,726 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 17 Unknown, 0 Unchecked, 0.37ms Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 26.88ms Time] [2021-08-29 10:33:23,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-08-29 10:33:23,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-08-29 10:33:23,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:23,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-08-29 10:33:23,729 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2021-08-29 10:33:23,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 10:33:23,729 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-08-29 10:33:23,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:23,730 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-08-29 10:33:23,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-29 10:33:23,730 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 10:33:23,730 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 10:33:23,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 10:33:23,731 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 10:33:23,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 10:33:23,731 INFO L82 PathProgramCache]: Analyzing trace with hash 468121936, now seen corresponding path program 1 times [2021-08-29 10:33:23,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 10:33:23,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572185046] [2021-08-29 10:33:23,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 10:33:23,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 10:33:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 10:33:23,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 10:33:23,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 10:33:23,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572185046] [2021-08-29 10:33:23,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572185046] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 10:33:23,817 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 10:33:23,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-29 10:33:23,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004009525] [2021-08-29 10:33:23,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-29 10:33:23,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 10:33:23,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-29 10:33:23,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-29 10:33:23,819 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:23,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 10:33:23,840 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2021-08-29 10:33:23,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 10:33:23,840 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-29 10:33:23,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 10:33:23,846 INFO L225 Difference]: With dead ends: 11 [2021-08-29 10:33:23,846 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 10:33:23,846 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 30.02ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-29 10:33:23,847 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.11ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.94ms IncrementalHoareTripleChecker+Time [2021-08-29 10:33:23,848 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 6 Unknown, 0 Unchecked, 0.11ms Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 6.94ms Time] [2021-08-29 10:33:23,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 10:33:23,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 10:33:23,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:23,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 10:33:23,849 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-08-29 10:33:23,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 10:33:23,849 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 10:33:23,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:23,849 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 10:33:23,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 10:33:23,852 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 10:33:23,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-29 10:33:23,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 10:33:23,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:33:23,859 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:33:23,868 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 10:33:23,868 INFO L858 garLoopResultBuilder]: For program point L21(lines 21 22) no Hoare annotation was computed. [2021-08-29 10:33:23,868 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 10:33:23,869 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 10:33:23,869 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 10:33:23,869 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2021-08-29 10:33:23,869 INFO L861 garLoopResultBuilder]: At program point L24(lines 10 25) the Hoare annotation is: true [2021-08-29 10:33:23,869 INFO L858 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-08-29 10:33:23,869 INFO L858 garLoopResultBuilder]: For program point L20(lines 20 22) no Hoare annotation was computed. [2021-08-29 10:33:23,869 INFO L858 garLoopResultBuilder]: For program point L20-1(lines 20 22) no Hoare annotation was computed. [2021-08-29 10:33:23,870 INFO L858 garLoopResultBuilder]: For program point L14-1(lines 14 17) no Hoare annotation was computed. [2021-08-29 10:33:23,870 INFO L854 garLoopResultBuilder]: At program point L14-3(lines 14 17) the Hoare annotation is: (and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#x~0.base|)) (not (= |~#x~0.base| |~#y~0.base|)) (= ~i~0 0)) [2021-08-29 10:33:23,870 INFO L858 garLoopResultBuilder]: For program point L14-4(lines 14 17) no Hoare annotation was computed. [2021-08-29 10:33:23,874 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 10:33:23,881 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:240) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:452) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) 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) [2021-08-29 10:33:23,886 INFO L158 Benchmark]: Toolchain (without parser) took 1311.44ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 31.5MB in the beginning and 48.2MB in the end (delta: -16.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 10:33:23,900 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 54.5MB. Free memory is still 36.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 10:33:23,901 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.72ms. Allocated memory is still 54.5MB. Free memory was 31.4MB in the beginning and 35.2MB in the end (delta: -3.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-08-29 10:33:23,901 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.76ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 35.2MB in the beginning and 52.7MB in the end (delta: -17.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 10:33:23,902 INFO L158 Benchmark]: Boogie Preprocessor took 40.80ms. Allocated memory is still 69.2MB. Free memory was 52.7MB in the beginning and 51.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 10:33:23,902 INFO L158 Benchmark]: RCFGBuilder took 252.93ms. Allocated memory is still 69.2MB. Free memory was 51.6MB in the beginning and 42.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 10:33:23,902 INFO L158 Benchmark]: TraceAbstraction took 774.50ms. Allocated memory is still 69.2MB. Free memory was 42.1MB in the beginning and 48.2MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 10:33:23,904 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 54.5MB. Free memory is still 36.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 166.72ms. Allocated memory is still 54.5MB. Free memory was 31.4MB in the beginning and 35.2MB in the end (delta: -3.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.76ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 35.2MB in the beginning and 52.7MB in the end (delta: -17.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.80ms. Allocated memory is still 69.2MB. Free memory was 52.7MB in the beginning and 51.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 252.93ms. Allocated memory is still 69.2MB. Free memory was 51.6MB in the beginning and 42.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 774.50ms. Allocated memory is still 69.2MB. Free memory was 42.1MB in the beginning and 48.2MB in the end (delta: -6.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 22]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 697.32ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 23.64ms, AutomataDifference: 185.40ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 15.28ms, InitialAbstractionConstructionTime: 9.91ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 82.36ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 62.13ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 35 mSolverCounterSat, 0.69ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 36.00ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 21.43ms AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 15 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 4.60ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 4.94ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 24.62ms SsaConstructionTime, 80.05ms SatisfiabilityAnalysisTime, 201.18ms InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:240) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-29 10:33:23,968 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... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 10:33:25,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 10:33:25,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 10:33:25,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 10:33:25,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 10:33:25,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 10:33:25,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 10:33:25,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 10:33:25,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 10:33:25,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 10:33:25,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 10:33:25,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 10:33:25,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 10:33:25,894 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 10:33:25,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 10:33:25,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 10:33:25,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 10:33:25,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 10:33:25,902 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 10:33:25,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 10:33:25,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 10:33:25,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 10:33:25,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 10:33:25,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 10:33:25,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 10:33:25,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 10:33:25,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 10:33:25,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 10:33:25,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 10:33:25,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 10:33:25,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 10:33:25,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 10:33:25,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 10:33:25,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 10:33:25,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 10:33:25,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 10:33:25,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 10:33:25,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 10:33:25,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 10:33:25,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 10:33:25,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 10:33:25,942 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 10:33:25,978 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 10:33:25,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 10:33:25,980 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 10:33:25,980 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 10:33:25,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 10:33:25,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 10:33:25,982 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 10:33:25,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 10:33:25,982 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 10:33:25,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 10:33:25,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 10:33:25,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 10:33:25,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 10:33:25,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 10:33:25,984 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 10:33:25,984 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 10:33:25,985 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 10:33:25,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 10:33:25,985 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 10:33:25,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 10:33:25,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 10:33:25,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 10:33:25,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 10:33:25,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 10:33:25,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 10:33:25,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 10:33:25,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 10:33:25,987 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 10:33:25,987 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 10:33:25,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 10:33:25,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 10:33:25,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 10:33:25,988 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed3f8420ae2f88e8ad9c7f42b645f73b3c08f37e [2021-08-29 10:33:26,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 10:33:26,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 10:33:26,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 10:33:26,361 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 10:33:26,362 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 10:33:26,363 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/n.c40.c [2021-08-29 10:33:26,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6a595c77/aa9ea5850d2c402796745e5f0bc9d641/FLAGe36cd5079 [2021-08-29 10:33:26,773 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 10:33:26,773 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/n.c40.c [2021-08-29 10:33:26,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6a595c77/aa9ea5850d2c402796745e5f0bc9d641/FLAGe36cd5079 [2021-08-29 10:33:27,207 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6a595c77/aa9ea5850d2c402796745e5f0bc9d641 [2021-08-29 10:33:27,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 10:33:27,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 10:33:27,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 10:33:27,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 10:33:27,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 10:33:27,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:33:27" (1/1) ... [2021-08-29 10:33:27,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@774c787e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:27, skipping insertion in model container [2021-08-29 10:33:27,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 10:33:27" (1/1) ... [2021-08-29 10:33:27,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 10:33:27,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 10:33:27,344 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/n.c40.c[498,511] [2021-08-29 10:33:27,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 10:33:27,366 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 10:33:27,412 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/n.c40.c[498,511] [2021-08-29 10:33:27,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 10:33:27,424 INFO L208 MainTranslator]: Completed translation [2021-08-29 10:33:27,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:27 WrapperNode [2021-08-29 10:33:27,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 10:33:27,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 10:33:27,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 10:33:27,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 10:33:27,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:27" (1/1) ... [2021-08-29 10:33:27,436 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:27" (1/1) ... [2021-08-29 10:33:27,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 10:33:27,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 10:33:27,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 10:33:27,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 10:33:27,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:27" (1/1) ... [2021-08-29 10:33:27,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:27" (1/1) ... [2021-08-29 10:33:27,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:27" (1/1) ... [2021-08-29 10:33:27,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:27" (1/1) ... [2021-08-29 10:33:27,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:27" (1/1) ... [2021-08-29 10:33:27,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:27" (1/1) ... [2021-08-29 10:33:27,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:27" (1/1) ... [2021-08-29 10:33:27,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 10:33:27,500 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 10:33:27,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 10:33:27,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 10:33:27,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:27" (1/1) ... [2021-08-29 10:33:27,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 10:33:27,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 10:33:27,529 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) [2021-08-29 10:33:27,531 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 [2021-08-29 10:33:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-08-29 10:33:27,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 10:33:27,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 10:33:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 10:33:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-08-29 10:33:27,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 10:33:27,761 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 10:33:27,762 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-29 10:33:27,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:33:27 BoogieIcfgContainer [2021-08-29 10:33:27,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 10:33:27,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 10:33:27,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 10:33:27,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 10:33:27,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 10:33:27" (1/3) ... [2021-08-29 10:33:27,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa826ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:33:27, skipping insertion in model container [2021-08-29 10:33:27,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 10:33:27" (2/3) ... [2021-08-29 10:33:27,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa826ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 10:33:27, skipping insertion in model container [2021-08-29 10:33:27,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 10:33:27" (3/3) ... [2021-08-29 10:33:27,771 INFO L111 eAbstractionObserver]: Analyzing ICFG n.c40.c [2021-08-29 10:33:27,775 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 10:33:27,776 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 10:33:27,821 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 10:33:27,827 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-08-29 10:33:27,827 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 10:33:27,837 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:27,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-29 10:33:27,842 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 10:33:27,842 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-29 10:33:27,843 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 10:33:27,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 10:33:27,847 INFO L82 PathProgramCache]: Analyzing trace with hash 1813493552, now seen corresponding path program 1 times [2021-08-29 10:33:27,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 10:33:27,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272906436] [2021-08-29 10:33:27,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 10:33:27,858 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 10:33:27,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 10:33:27,860 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) [2021-08-29 10:33:27,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 10:33:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 10:33:27,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-29 10:33:27,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 10:33:28,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 10:33:28,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 10:33:28,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 10:33:28,094 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 10:33:28,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272906436] [2021-08-29 10:33:28,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1272906436] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 10:33:28,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 10:33:28,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-29 10:33:28,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690099054] [2021-08-29 10:33:28,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 10:33:28,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 10:33:28,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 10:33:28,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 10:33:28,131 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:28,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 10:33:28,180 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2021-08-29 10:33:28,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 10:33:28,183 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-08-29 10:33:28,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 10:33:28,188 INFO L225 Difference]: With dead ends: 22 [2021-08-29 10:33:28,189 INFO L226 Difference]: Without dead ends: 9 [2021-08-29 10:33:28,191 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.06ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 10:33:28,194 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.19ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.66ms IncrementalHoareTripleChecker+Time [2021-08-29 10:33:28,195 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 14 Unknown, 0 Unchecked, 0.19ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 37.66ms Time] [2021-08-29 10:33:28,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-08-29 10:33:28,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-08-29 10:33:28,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:28,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-08-29 10:33:28,217 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2021-08-29 10:33:28,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 10:33:28,218 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-08-29 10:33:28,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:28,218 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-08-29 10:33:28,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-29 10:33:28,226 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 10:33:28,227 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 10:33:28,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-29 10:33:28,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 10:33:28,436 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 10:33:28,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 10:33:28,437 INFO L82 PathProgramCache]: Analyzing trace with hash 177687787, now seen corresponding path program 1 times [2021-08-29 10:33:28,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 10:33:28,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [166279646] [2021-08-29 10:33:28,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 10:33:28,439 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 10:33:28,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 10:33:28,442 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 10:33:28,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-29 10:33:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 10:33:28,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-29 10:33:28,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 10:33:28,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 10:33:28,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 10:33:28,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 10:33:28,584 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 10:33:28,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [166279646] [2021-08-29 10:33:28,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [166279646] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 10:33:28,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 10:33:28,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-08-29 10:33:28,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592392149] [2021-08-29 10:33:28,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-29 10:33:28,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 10:33:28,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-29 10:33:28,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 10:33:28,587 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:28,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 10:33:28,619 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-08-29 10:33:28,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-29 10:33:28,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-29 10:33:28,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 10:33:28,621 INFO L225 Difference]: With dead ends: 16 [2021-08-29 10:33:28,621 INFO L226 Difference]: Without dead ends: 11 [2021-08-29 10:33:28,621 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.79ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-29 10:33:28,623 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.37ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.27ms IncrementalHoareTripleChecker+Time [2021-08-29 10:33:28,623 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 18 Unknown, 0 Unchecked, 0.37ms Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 26.27ms Time] [2021-08-29 10:33:28,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-08-29 10:33:28,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-08-29 10:33:28,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:28,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-08-29 10:33:28,627 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2021-08-29 10:33:28,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 10:33:28,628 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-08-29 10:33:28,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:28,628 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-08-29 10:33:28,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-29 10:33:28,629 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 10:33:28,629 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 10:33:28,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-29 10:33:28,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 10:33:28,845 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 10:33:28,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 10:33:28,846 INFO L82 PathProgramCache]: Analyzing trace with hash 468121936, now seen corresponding path program 1 times [2021-08-29 10:33:28,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 10:33:28,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1586680740] [2021-08-29 10:33:28,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 10:33:28,847 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 10:33:28,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 10:33:28,848 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 10:33:28,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-29 10:33:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 10:33:28,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-29 10:33:28,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 10:33:29,012 INFO L173 IndexEqualityManager]: detected equality via solver [2021-08-29 10:33:29,027 INFO L354 Elim1Store]: treesize reduction 17, result has 43.3 percent of original size [2021-08-29 10:33:29,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 32 [2021-08-29 10:33:29,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-08-29 10:33:29,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 32 [2021-08-29 10:33:29,277 INFO L354 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2021-08-29 10:33:29,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 29 [2021-08-29 10:33:29,313 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 10:33:29,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 10:33:32,673 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-29 10:33:32,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 56 [2021-08-29 10:33:32,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30 [2021-08-29 10:33:32,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 92 [2021-08-29 10:33:32,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 10:33:32,865 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 10:33:32,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1586680740] [2021-08-29 10:33:32,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1586680740] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-29 10:33:32,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-29 10:33:32,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2021-08-29 10:33:32,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488132132] [2021-08-29 10:33:32,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-29 10:33:32,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 10:33:32,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-29 10:33:32,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=114, Unknown=2, NotChecked=0, Total=156 [2021-08-29 10:33:32,867 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:32,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 10:33:32,947 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-08-29 10:33:32,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-29 10:33:32,948 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-29 10:33:32,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 10:33:32,948 INFO L225 Difference]: With dead ends: 18 [2021-08-29 10:33:32,949 INFO L226 Difference]: Without dead ends: 13 [2021-08-29 10:33:32,949 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3324.06ms TimeCoverageRelationStatistics Valid=46, Invalid=134, Unknown=2, NotChecked=0, Total=182 [2021-08-29 10:33:32,950 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.47ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 34.55ms IncrementalHoareTripleChecker+Time [2021-08-29 10:33:32,951 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 45 Unknown, 0 Unchecked, 0.47ms Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 29 Unchecked, 34.55ms Time] [2021-08-29 10:33:32,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-08-29 10:33:32,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-08-29 10:33:32,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:32,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-08-29 10:33:32,954 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2021-08-29 10:33:32,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 10:33:32,954 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-08-29 10:33:32,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 13 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:32,954 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-08-29 10:33:32,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 10:33:32,955 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 10:33:32,955 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 10:33:32,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-29 10:33:33,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 10:33:33,164 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 10:33:33,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 10:33:33,165 INFO L82 PathProgramCache]: Analyzing trace with hash 402464885, now seen corresponding path program 2 times [2021-08-29 10:33:33,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 10:33:33,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1415296816] [2021-08-29 10:33:33,165 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-29 10:33:33,166 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 10:33:33,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 10:33:33,167 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 10:33:33,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-29 10:33:33,258 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-29 10:33:33,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-29 10:33:33,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-29 10:33:33,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 10:33:33,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 62 [2021-08-29 10:33:33,299 INFO L354 Elim1Store]: treesize reduction 16, result has 27.3 percent of original size [2021-08-29 10:33:33,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 63 [2021-08-29 10:33:35,423 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-08-29 10:33:35,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 21 [2021-08-29 10:33:35,454 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-29 10:33:35,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 10:33:35,514 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-29 10:33:35,515 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 10:33:35,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1415296816] [2021-08-29 10:33:35,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1415296816] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 10:33:35,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 10:33:35,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-08-29 10:33:35,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248634324] [2021-08-29 10:33:35,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 10:33:35,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 10:33:35,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 10:33:35,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-29 10:33:35,517 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:35,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 10:33:35,533 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2021-08-29 10:33:35,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 10:33:35,533 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-29 10:33:35,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 10:33:35,533 INFO L225 Difference]: With dead ends: 13 [2021-08-29 10:33:35,534 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 10:33:35,534 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2061.11ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-08-29 10:33:35,535 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 9.12ms IncrementalHoareTripleChecker+Time [2021-08-29 10:33:35,535 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 4 Unknown, 0 Unchecked, 0.05ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 2 Unchecked, 9.12ms Time] [2021-08-29 10:33:35,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 10:33:35,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 10:33:35,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:35,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 10:33:35,536 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-08-29 10:33:35,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 10:33:35,536 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 10:33:35,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 10:33:35,537 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 10:33:35,537 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 10:33:35,539 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 10:33:35,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-29 10:33:35,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 10:33:35,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 10:33:35,752 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:33:35,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 10:33:37,802 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 10:33:37,802 INFO L858 garLoopResultBuilder]: For program point L21(lines 21 22) no Hoare annotation was computed. [2021-08-29 10:33:37,802 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 10:33:37,802 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 10:33:37,802 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 10:33:37,802 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2021-08-29 10:33:37,802 INFO L861 garLoopResultBuilder]: At program point L24(lines 10 25) the Hoare annotation is: true [2021-08-29 10:33:37,803 INFO L858 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-08-29 10:33:37,803 INFO L858 garLoopResultBuilder]: For program point L20(lines 20 22) no Hoare annotation was computed. [2021-08-29 10:33:37,803 INFO L858 garLoopResultBuilder]: For program point L20-1(lines 20 22) no Hoare annotation was computed. [2021-08-29 10:33:37,803 INFO L858 garLoopResultBuilder]: For program point L14-1(lines 14 17) no Hoare annotation was computed. [2021-08-29 10:33:37,803 INFO L854 garLoopResultBuilder]: At program point L14-3(lines 14 17) the Hoare annotation is: (and (exists ((|~#y~0.base| (_ BitVec 32))) (and (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |#memory_int| |~#y~0.base|)) (not (= |~#x~0.base| |~#y~0.base|)))) (= ~i~0 (_ bv0 32)) (= (select |#memory_int| |~#x~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))) (= |~#x~0.offset| (_ bv0 32)) (= |~#y~0.offset| (_ bv0 32))) [2021-08-29 10:33:37,803 INFO L858 garLoopResultBuilder]: For program point L14-4(lines 14 17) no Hoare annotation was computed. [2021-08-29 10:33:37,807 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 10:33:37,813 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:456) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:135) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:452) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) 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) [2021-08-29 10:33:37,816 INFO L158 Benchmark]: Toolchain (without parser) took 10605.34ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 39.2MB in the beginning and 37.4MB in the end (delta: 1.9MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2021-08-29 10:33:37,816 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 41.7MB in the beginning and 41.6MB in the end (delta: 28.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 10:33:37,816 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.14ms. Allocated memory is still 60.8MB. Free memory was 39.0MB in the beginning and 43.6MB in the end (delta: -4.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 10:33:37,817 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.60ms. Allocated memory is still 60.8MB. Free memory was 43.6MB in the beginning and 42.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 10:33:37,817 INFO L158 Benchmark]: Boogie Preprocessor took 45.63ms. Allocated memory is still 60.8MB. Free memory was 42.1MB in the beginning and 41.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 10:33:37,817 INFO L158 Benchmark]: RCFGBuilder took 264.86ms. Allocated memory is still 60.8MB. Free memory was 40.9MB in the beginning and 31.5MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 10:33:37,817 INFO L158 Benchmark]: TraceAbstraction took 10049.07ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 31.0MB in the beginning and 37.4MB in the end (delta: -6.4MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2021-08-29 10:33:37,819 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory was 41.7MB in the beginning and 41.6MB in the end (delta: 28.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 211.14ms. Allocated memory is still 60.8MB. Free memory was 39.0MB in the beginning and 43.6MB in the end (delta: -4.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.60ms. Allocated memory is still 60.8MB. Free memory was 43.6MB in the beginning and 42.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.63ms. Allocated memory is still 60.8MB. Free memory was 42.1MB in the beginning and 41.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 264.86ms. Allocated memory is still 60.8MB. Free memory was 40.9MB in the beginning and 31.5MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 10049.07ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 31.0MB in the beginning and 37.4MB in the end (delta: -6.4MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 22]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9987.67ms, OverallIterations: 4, TraceHistogramMax: 3, EmptinessCheckTime: 16.76ms, AutomataDifference: 237.96ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 2053.17ms, InitialAbstractionConstructionTime: 7.14ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 107.60ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 91.98ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 31 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 47 mSolverCounterSat, 1.09ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 5392.02ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 17.12ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 29 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 23.65ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 2024.64ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 52.57ms SsaConstructionTime, 113.00ms SatisfiabilityAnalysisTime, 6423.64ms InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 66 ConstructedInterpolants, 16 QuantifiedInterpolants, 481 SizeOfPredicates, 24 NumberOfNonLiveVariables, 183 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 12/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-29 10:33:37,855 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...