./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/verifythis/lcp.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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/verifythis/lcp.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 99469a4d9e5d9407366653a2d47248a07b3d0735 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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/verifythis/lcp.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 99469a4d9e5d9407366653a2d47248a07b3d0735 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-dev-20ed64e [2021-08-26 04:43:15,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 04:43:15,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 04:43:15,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 04:43:15,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 04:43:15,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 04:43:15,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 04:43:15,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 04:43:15,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 04:43:15,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 04:43:15,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 04:43:15,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 04:43:15,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 04:43:15,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 04:43:15,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 04:43:15,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 04:43:15,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 04:43:15,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 04:43:15,360 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 04:43:15,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 04:43:15,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 04:43:15,364 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 04:43:15,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 04:43:15,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 04:43:15,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 04:43:15,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 04:43:15,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 04:43:15,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 04:43:15,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 04:43:15,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 04:43:15,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 04:43:15,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 04:43:15,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 04:43:15,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 04:43:15,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 04:43:15,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 04:43:15,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 04:43:15,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 04:43:15,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 04:43:15,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 04:43:15,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 04:43:15,380 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 04:43:15,409 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 04:43:15,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 04:43:15,410 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 04:43:15,411 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 04:43:15,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 04:43:15,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 04:43:15,412 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 04:43:15,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 04:43:15,413 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 04:43:15,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 04:43:15,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 04:43:15,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 04:43:15,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 04:43:15,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 04:43:15,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 04:43:15,415 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 04:43:15,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 04:43:15,415 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 04:43:15,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 04:43:15,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 04:43:15,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 04:43:15,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 04:43:15,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 04:43:15,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 04:43:15,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 04:43:15,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 04:43:15,426 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 04:43:15,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 04:43:15,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 04:43:15,426 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 04:43:15,426 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99469a4d9e5d9407366653a2d47248a07b3d0735 [2021-08-26 04:43:15,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 04:43:15,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 04:43:15,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 04:43:15,704 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 04:43:15,704 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 04:43:15,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/lcp.c [2021-08-26 04:43:15,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e415e449/ca29987506b44869afc7617ab4b55381/FLAG68435e329 [2021-08-26 04:43:16,201 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 04:43:16,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/lcp.c [2021-08-26 04:43:16,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e415e449/ca29987506b44869afc7617ab4b55381/FLAG68435e329 [2021-08-26 04:43:16,224 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e415e449/ca29987506b44869afc7617ab4b55381 [2021-08-26 04:43:16,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 04:43:16,229 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 04:43:16,230 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 04:43:16,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 04:43:16,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 04:43:16,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 04:43:16" (1/1) ... [2021-08-26 04:43:16,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60899d76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:16, skipping insertion in model container [2021-08-26 04:43:16,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 04:43:16" (1/1) ... [2021-08-26 04:43:16,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 04:43:16,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 04:43:16,365 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/verifythis/lcp.c[515,528] [2021-08-26 04:43:16,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 04:43:16,403 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 04:43:16,419 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/verifythis/lcp.c[515,528] [2021-08-26 04:43:16,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 04:43:16,457 INFO L208 MainTranslator]: Completed translation [2021-08-26 04:43:16,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:16 WrapperNode [2021-08-26 04:43:16,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 04:43:16,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 04:43:16,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 04:43:16,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 04:43:16,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:16" (1/1) ... [2021-08-26 04:43:16,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:16" (1/1) ... [2021-08-26 04:43:16,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 04:43:16,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 04:43:16,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 04:43:16,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 04:43:16,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:16" (1/1) ... [2021-08-26 04:43:16,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:16" (1/1) ... [2021-08-26 04:43:16,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:16" (1/1) ... [2021-08-26 04:43:16,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:16" (1/1) ... [2021-08-26 04:43:16,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:16" (1/1) ... [2021-08-26 04:43:16,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:16" (1/1) ... [2021-08-26 04:43:16,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:16" (1/1) ... [2021-08-26 04:43:16,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 04:43:16,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 04:43:16,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 04:43:16,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 04:43:16,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:16" (1/1) ... [2021-08-26 04:43:16,570 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 04:43:16,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 04:43:16,590 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) [2021-08-26 04:43:16,614 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 [2021-08-26 04:43:16,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 04:43:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 04:43:16,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-26 04:43:16,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 04:43:16,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 04:43:16,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 04:43:16,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 04:43:16,989 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 04:43:16,991 INFO L299 CfgBuilder]: Removed 21 assume(true) statements. [2021-08-26 04:43:16,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 04:43:16 BoogieIcfgContainer [2021-08-26 04:43:16,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 04:43:16,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 04:43:16,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 04:43:16,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 04:43:16,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 04:43:16" (1/3) ... [2021-08-26 04:43:16,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183fb35d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 04:43:16, skipping insertion in model container [2021-08-26 04:43:16,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:16" (2/3) ... [2021-08-26 04:43:16,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183fb35d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 04:43:16, skipping insertion in model container [2021-08-26 04:43:16,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 04:43:16" (3/3) ... [2021-08-26 04:43:17,001 INFO L111 eAbstractionObserver]: Analyzing ICFG lcp.c [2021-08-26 04:43:17,005 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 04:43:17,005 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-26 04:43:17,053 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 04:43:17,060 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 [2021-08-26 04:43:17,061 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-26 04:43:17,073 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 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) [2021-08-26 04:43:17,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-26 04:43:17,083 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 04:43:17,084 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 04:43:17,084 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 04:43:17,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 04:43:17,089 INFO L82 PathProgramCache]: Analyzing trace with hash 1579702917, now seen corresponding path program 1 times [2021-08-26 04:43:17,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 04:43:17,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757356028] [2021-08-26 04:43:17,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 04:43:17,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 04:43:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 04:43:17,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 04:43:17,259 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 04:43:17,259 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757356028] [2021-08-26 04:43:17,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757356028] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 04:43:17,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 04:43:17,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 04:43:17,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48860605] [2021-08-26 04:43:17,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 04:43:17,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 04:43:17,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 04:43:17,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 04:43:17,280 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2021-08-26 04:43:17,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 04:43:17,297 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2021-08-26 04:43:17,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 04:43:17,299 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2021-08-26 04:43:17,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 04:43:17,304 INFO L225 Difference]: With dead ends: 51 [2021-08-26 04:43:17,304 INFO L226 Difference]: Without dead ends: 22 [2021-08-26 04:43:17,306 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 04:43:17,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-08-26 04:43:17,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-08-26 04:43:17,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 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) [2021-08-26 04:43:17,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-08-26 04:43:17,334 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 14 [2021-08-26 04:43:17,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 04:43:17,335 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-08-26 04:43:17,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2021-08-26 04:43:17,335 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-08-26 04:43:17,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-26 04:43:17,336 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 04:43:17,336 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 04:43:17,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 04:43:17,338 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 04:43:17,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 04:43:17,343 INFO L82 PathProgramCache]: Analyzing trace with hash 588290746, now seen corresponding path program 1 times [2021-08-26 04:43:17,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 04:43:17,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904314009] [2021-08-26 04:43:17,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 04:43:17,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 04:43:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 04:43:17,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 04:43:17,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 04:43:17,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904314009] [2021-08-26 04:43:17,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904314009] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 04:43:17,511 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 04:43:17,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-26 04:43:17,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377400741] [2021-08-26 04:43:17,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 04:43:17,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 04:43:17,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 04:43:17,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-26 04:43:17,514 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-08-26 04:43:17,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 04:43:17,646 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2021-08-26 04:43:17,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 04:43:17,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) Word has length 16 [2021-08-26 04:43:17,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 04:43:17,647 INFO L225 Difference]: With dead ends: 50 [2021-08-26 04:43:17,647 INFO L226 Difference]: Without dead ends: 38 [2021-08-26 04:43:17,648 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 89.0ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-26 04:43:17,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-08-26 04:43:17,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 25. [2021-08-26 04:43:17,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 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) [2021-08-26 04:43:17,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2021-08-26 04:43:17,653 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 16 [2021-08-26 04:43:17,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 04:43:17,653 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2021-08-26 04:43:17,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-08-26 04:43:17,654 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2021-08-26 04:43:17,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-26 04:43:17,654 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 04:43:17,654 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 04:43:17,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 04:43:17,655 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 04:43:17,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 04:43:17,655 INFO L82 PathProgramCache]: Analyzing trace with hash -221055880, now seen corresponding path program 1 times [2021-08-26 04:43:17,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 04:43:17,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653541672] [2021-08-26 04:43:17,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 04:43:17,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 04:43:17,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 04:43:17,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 04:43:17,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 04:43:17,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653541672] [2021-08-26 04:43:17,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653541672] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 04:43:17,835 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 04:43:17,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-26 04:43:17,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562040130] [2021-08-26 04:43:17,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 04:43:17,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 04:43:17,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 04:43:17,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-26 04:43:17,847 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-08-26 04:43:17,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 04:43:17,957 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2021-08-26 04:43:17,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 04:43:17,958 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) Word has length 16 [2021-08-26 04:43:17,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 04:43:17,958 INFO L225 Difference]: With dead ends: 25 [2021-08-26 04:43:17,959 INFO L226 Difference]: Without dead ends: 23 [2021-08-26 04:43:17,959 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 111.6ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-26 04:43:17,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-08-26 04:43:17,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-08-26 04:43:17,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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) [2021-08-26 04:43:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2021-08-26 04:43:17,962 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 16 [2021-08-26 04:43:17,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 04:43:17,963 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2021-08-26 04:43:17,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-08-26 04:43:17,963 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2021-08-26 04:43:17,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-26 04:43:17,964 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 04:43:17,964 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 04:43:17,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 04:43:17,964 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 04:43:17,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 04:43:17,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1286954589, now seen corresponding path program 1 times [2021-08-26 04:43:17,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 04:43:17,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116494745] [2021-08-26 04:43:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 04:43:17,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 04:43:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 04:43:18,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 04:43:18,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 04:43:18,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116494745] [2021-08-26 04:43:18,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116494745] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 04:43:18,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 04:43:18,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-26 04:43:18,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013699195] [2021-08-26 04:43:18,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 04:43:18,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 04:43:18,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 04:43:18,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-26 04:43:18,257 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) [2021-08-26 04:43:18,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 04:43:18,520 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2021-08-26 04:43:18,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 04:43:18,521 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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 19 [2021-08-26 04:43:18,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 04:43:18,521 INFO L225 Difference]: With dead ends: 34 [2021-08-26 04:43:18,522 INFO L226 Difference]: Without dead ends: 24 [2021-08-26 04:43:18,522 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 268.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-26 04:43:18,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-08-26 04:43:18,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2021-08-26 04:43:18,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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) [2021-08-26 04:43:18,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2021-08-26 04:43:18,525 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 19 [2021-08-26 04:43:18,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 04:43:18,526 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2021-08-26 04:43:18,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 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) [2021-08-26 04:43:18,526 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2021-08-26 04:43:18,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-26 04:43:18,527 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 04:43:18,527 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 04:43:18,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-26 04:43:18,527 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 04:43:18,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 04:43:18,528 INFO L82 PathProgramCache]: Analyzing trace with hash 873138096, now seen corresponding path program 1 times [2021-08-26 04:43:18,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 04:43:18,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653771518] [2021-08-26 04:43:18,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 04:43:18,529 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 04:43:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 04:43:18,605 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 04:43:18,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 04:43:18,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653771518] [2021-08-26 04:43:18,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653771518] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 04:43:18,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340600514] [2021-08-26 04:43:18,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 04:43:18,607 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 04:43:18,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 04:43:18,612 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 04:43:18,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-26 04:43:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 04:43:18,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-26 04:43:18,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 04:43:18,788 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 0 case distinctions, treesize of input 7 treesize of output 6 [2021-08-26 04:43:18,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 54 [2021-08-26 04:43:18,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-26 04:43:18,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340600514] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 04:43:18,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 04:43:18,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 7 [2021-08-26 04:43:18,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601972129] [2021-08-26 04:43:18,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 04:43:18,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 04:43:18,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 04:43:18,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-26 04:43:18,917 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2021-08-26 04:43:18,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 04:43:18,972 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2021-08-26 04:43:18,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 04:43:18,973 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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 22 [2021-08-26 04:43:18,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 04:43:18,975 INFO L225 Difference]: With dead ends: 35 [2021-08-26 04:43:18,975 INFO L226 Difference]: Without dead ends: 25 [2021-08-26 04:43:18,975 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 49.6ms TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-08-26 04:43:18,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-08-26 04:43:18,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2021-08-26 04:43:18,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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) [2021-08-26 04:43:18,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2021-08-26 04:43:18,979 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 22 [2021-08-26 04:43:18,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 04:43:18,979 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2021-08-26 04:43:18,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2021-08-26 04:43:18,980 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2021-08-26 04:43:18,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-26 04:43:18,980 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 04:43:18,980 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 04:43:19,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-26 04:43:19,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 04:43:19,199 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 04:43:19,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 04:43:19,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1574202674, now seen corresponding path program 1 times [2021-08-26 04:43:19,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 04:43:19,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129668590] [2021-08-26 04:43:19,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 04:43:19,201 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 04:43:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 04:43:19,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 04:43:19,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 04:43:19,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129668590] [2021-08-26 04:43:19,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129668590] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 04:43:19,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439256649] [2021-08-26 04:43:19,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 04:43:19,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 04:43:19,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 04:43:19,361 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 04:43:19,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-26 04:43:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 04:43:19,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 20 conjunts are in the unsatisfiable core [2021-08-26 04:43:19,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 04:43:19,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-26 04:43:19,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439256649] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 04:43:19,916 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 04:43:19,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-08-26 04:43:19,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939442475] [2021-08-26 04:43:19,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-26 04:43:19,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 04:43:19,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-26 04:43:19,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-08-26 04:43:19,918 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2021-08-26 04:43:20,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 04:43:20,018 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2021-08-26 04:43:20,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 04:43:20,020 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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 22 [2021-08-26 04:43:20,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 04:43:20,020 INFO L225 Difference]: With dead ends: 26 [2021-08-26 04:43:20,020 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 04:43:20,021 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 114.2ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-08-26 04:43:20,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 04:43:20,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 04:43:20,021 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) [2021-08-26 04:43:20,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 04:43:20,022 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-08-26 04:43:20,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 04:43:20,022 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 04:43:20,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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) [2021-08-26 04:43:20,022 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 04:43:20,023 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 04:43:20,025 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 04:43:20,025 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 04:43:20,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-26 04:43:20,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-08-26 04:43:20,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 04:43:20,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 04:43:20,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 04:43:20,260 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 04:43:20,318 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-08-26 04:43:20,319 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-08-26 04:43:20,319 INFO L860 garLoopResultBuilder]: At program point L48(lines 35 49) the Hoare annotation is: true [2021-08-26 04:43:20,319 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 04:43:20,319 INFO L857 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2021-08-26 04:43:20,319 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 04:43:20,319 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 04:43:20,320 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-08-26 04:43:20,320 INFO L857 garLoopResultBuilder]: For program point L24(lines 24 33) no Hoare annotation was computed. [2021-08-26 04:43:20,320 INFO L857 garLoopResultBuilder]: For program point L12(lines 12 14) no Hoare annotation was computed. [2021-08-26 04:43:20,320 INFO L857 garLoopResultBuilder]: For program point L12-1(lines 12 14) no Hoare annotation was computed. [2021-08-26 04:43:20,320 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 04:43:20,321 INFO L853 garLoopResultBuilder]: At program point L21(lines 16 22) the Hoare annotation is: (let ((.cse6 ((as const (Array Int Int)) 0))) (let ((.cse0 (= ULTIMATE.start_main_~n~0 ULTIMATE.start_lcp_~n)) (.cse1 (= .cse6 (select |#memory_int| ULTIMATE.start_main_~a~0.base))) (.cse2 (= ULTIMATE.start_main_~y~0 ULTIMATE.start_lcp_~y)) (.cse3 (= ULTIMATE.start_main_~x~0 ULTIMATE.start_lcp_~x)) (.cse4 (or (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~y~0 ULTIMATE.start_lcp_~l~0)) (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_lcp_~l~0)))) (.cse5 (= .cse6 (select |#memory_int| |ULTIMATE.start_main_#t~malloc18.base|)))) (or (and .cse0 (= 0 |ULTIMATE.start_lcp_#res|) (= 0 ULTIMATE.start_lcp_~l~0) .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 (= .cse6 (select |#memory_int| ULTIMATE.start_lcp_~a.base)) (or (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~x~0 |ULTIMATE.start_lcp_#res|)) (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~y~0 |ULTIMATE.start_lcp_#res|))) .cse1 .cse2 .cse3 .cse4 .cse5)))) [2021-08-26 04:43:20,321 INFO L857 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2021-08-26 04:43:20,321 INFO L857 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2021-08-26 04:43:20,321 INFO L857 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2021-08-26 04:43:20,321 INFO L857 garLoopResultBuilder]: For program point L13-4(line 13) no Hoare annotation was computed. [2021-08-26 04:43:20,321 INFO L857 garLoopResultBuilder]: For program point L5(lines 5 7) no Hoare annotation was computed. [2021-08-26 04:43:20,322 INFO L857 garLoopResultBuilder]: For program point L5-1(lines 5 7) no Hoare annotation was computed. [2021-08-26 04:43:20,322 INFO L857 garLoopResultBuilder]: For program point L5-2(lines 5 7) no Hoare annotation was computed. [2021-08-26 04:43:20,322 INFO L857 garLoopResultBuilder]: For program point L18-1(line 18) no Hoare annotation was computed. [2021-08-26 04:43:20,322 INFO L857 garLoopResultBuilder]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2021-08-26 04:43:20,322 INFO L853 garLoopResultBuilder]: At program point L18-5(lines 18 20) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= ULTIMATE.start_main_~n~0 ULTIMATE.start_lcp_~n) (= .cse0 (select |#memory_int| ULTIMATE.start_lcp_~a.base)) (= .cse0 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_lcp_~y) (= ULTIMATE.start_main_~x~0 ULTIMATE.start_lcp_~x) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc18.base|)))) [2021-08-26 04:43:20,322 INFO L857 garLoopResultBuilder]: For program point L18-6(lines 18 20) no Hoare annotation was computed. [2021-08-26 04:43:20,323 INFO L857 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2021-08-26 04:43:20,323 INFO L857 garLoopResultBuilder]: For program point L6-2(line 6) no Hoare annotation was computed. [2021-08-26 04:43:20,323 INFO L857 garLoopResultBuilder]: For program point L6-4(line 6) no Hoare annotation was computed. [2021-08-26 04:43:20,326 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 04:43:20,331 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) [2021-08-26 04:43:20,335 INFO L168 Benchmark]: Toolchain (without parser) took 4105.11 ms. Allocated memory was 58.7 MB in the beginning and 92.3 MB in the end (delta: 33.6 MB). Free memory was 39.6 MB in the beginning and 70.4 MB in the end (delta: -30.8 MB). Peak memory consumption was 46.6 MB. Max. memory is 16.1 GB. [2021-08-26 04:43:20,335 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 58.7 MB. Free memory is still 41.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 04:43:20,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.03 ms. Allocated memory is still 58.7 MB. Free memory was 39.4 MB in the beginning and 29.2 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 04:43:20,336 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.26 ms. Allocated memory is still 58.7 MB. Free memory was 29.1 MB in the beginning and 42.8 MB in the end (delta: -13.7 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-08-26 04:43:20,336 INFO L168 Benchmark]: Boogie Preprocessor took 37.96 ms. Allocated memory is still 58.7 MB. Free memory was 42.8 MB in the beginning and 41.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 04:43:20,337 INFO L168 Benchmark]: RCFGBuilder took 429.68 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 41.3 MB in the beginning and 57.1 MB in the end (delta: -15.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. [2021-08-26 04:43:20,337 INFO L168 Benchmark]: TraceAbstraction took 3338.89 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 56.8 MB in the beginning and 70.4 MB in the end (delta: -13.6 MB). Peak memory consumption was 46.2 MB. Max. memory is 16.1 GB. [2021-08-26 04:43:20,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 58.7 MB. Free memory is still 41.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 230.03 ms. Allocated memory is still 58.7 MB. Free memory was 39.4 MB in the beginning and 29.2 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.26 ms. Allocated memory is still 58.7 MB. Free memory was 29.1 MB in the beginning and 42.8 MB in the end (delta: -13.7 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.96 ms. Allocated memory is still 58.7 MB. Free memory was 42.8 MB in the beginning and 41.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 429.68 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 41.3 MB in the beginning and 57.1 MB in the end (delta: -15.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3338.89 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 56.8 MB in the beginning and 70.4 MB in the end (delta: -13.6 MB). Peak memory consumption was 46.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: 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, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3274.6ms, OverallIterations: 6, TraceHistogramMax: 2, EmptinessCheckTime: 15.8ms, AutomataDifference: 724.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 80.8ms, InitialAbstractionConstructionTime: 9.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 98 SDtfs, 216 SDslu, 147 SDs, 0 SdLazy, 180 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 196.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 632.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 31.7ms AutomataMinimizationTime, 6 MinimizatonAttempts, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 119 HoareAnnotationTreeSize, 3 FomulaSimplifications, 209 FormulaSimplificationTreeSizeReduction, 20.5ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 54.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 47.2ms SsaConstructionTime, 236.2ms SatisfiabilityAnalysisTime, 1426.8ms InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 810 SizeOfPredicates, 29 NumberOfNonLiveVariables, 371 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 4/12 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 2 specifications checked. All of them hold - 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. [2021-08-26 04:43:20,371 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 04:43:22,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 04:43:22,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 04:43:22,191 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 04:43:22,192 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 04:43:22,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 04:43:22,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 04:43:22,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 04:43:22,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 04:43:22,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 04:43:22,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 04:43:22,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 04:43:22,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 04:43:22,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 04:43:22,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 04:43:22,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 04:43:22,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 04:43:22,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 04:43:22,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 04:43:22,227 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 04:43:22,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 04:43:22,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 04:43:22,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 04:43:22,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 04:43:22,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 04:43:22,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 04:43:22,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 04:43:22,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 04:43:22,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 04:43:22,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 04:43:22,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 04:43:22,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 04:43:22,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 04:43:22,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 04:43:22,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 04:43:22,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 04:43:22,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 04:43:22,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 04:43:22,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 04:43:22,240 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 04:43:22,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 04:43:22,242 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 04:43:22,260 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 04:43:22,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 04:43:22,261 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 04:43:22,261 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 04:43:22,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 04:43:22,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 04:43:22,263 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 04:43:22,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 04:43:22,263 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 04:43:22,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 04:43:22,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 04:43:22,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 04:43:22,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 04:43:22,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 04:43:22,264 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 04:43:22,264 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 04:43:22,264 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 04:43:22,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 04:43:22,265 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 04:43:22,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 04:43:22,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 04:43:22,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 04:43:22,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 04:43:22,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 04:43:22,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 04:43:22,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 04:43:22,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 04:43:22,275 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 04:43:22,275 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 04:43:22,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 04:43:22,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 04:43:22,275 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 04:43:22,276 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99469a4d9e5d9407366653a2d47248a07b3d0735 [2021-08-26 04:43:22,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 04:43:22,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 04:43:22,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 04:43:22,533 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 04:43:22,533 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 04:43:22,534 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/lcp.c [2021-08-26 04:43:22,593 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45d9754c4/eb4a8c65033449cd9a8a422dcf7bf62f/FLAG248534b0d [2021-08-26 04:43:22,983 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 04:43:22,984 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/lcp.c [2021-08-26 04:43:22,990 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45d9754c4/eb4a8c65033449cd9a8a422dcf7bf62f/FLAG248534b0d [2021-08-26 04:43:23,006 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45d9754c4/eb4a8c65033449cd9a8a422dcf7bf62f [2021-08-26 04:43:23,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 04:43:23,011 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 04:43:23,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 04:43:23,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 04:43:23,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 04:43:23,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 04:43:23" (1/1) ... [2021-08-26 04:43:23,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ec83fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:23, skipping insertion in model container [2021-08-26 04:43:23,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 04:43:23" (1/1) ... [2021-08-26 04:43:23,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 04:43:23,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 04:43:23,180 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/verifythis/lcp.c[515,528] [2021-08-26 04:43:23,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 04:43:23,229 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 04:43:23,296 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/verifythis/lcp.c[515,528] [2021-08-26 04:43:23,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 04:43:23,338 INFO L208 MainTranslator]: Completed translation [2021-08-26 04:43:23,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:23 WrapperNode [2021-08-26 04:43:23,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 04:43:23,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 04:43:23,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 04:43:23,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 04:43:23,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:23" (1/1) ... [2021-08-26 04:43:23,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:23" (1/1) ... [2021-08-26 04:43:23,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 04:43:23,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 04:43:23,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 04:43:23,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 04:43:23,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:23" (1/1) ... [2021-08-26 04:43:23,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:23" (1/1) ... [2021-08-26 04:43:23,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:23" (1/1) ... [2021-08-26 04:43:23,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:23" (1/1) ... [2021-08-26 04:43:23,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:23" (1/1) ... [2021-08-26 04:43:23,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:23" (1/1) ... [2021-08-26 04:43:23,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:23" (1/1) ... [2021-08-26 04:43:23,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 04:43:23,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 04:43:23,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 04:43:23,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 04:43:23,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:23" (1/1) ... [2021-08-26 04:43:23,411 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 04:43:23,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 04:43:23,436 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) [2021-08-26 04:43:23,456 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 [2021-08-26 04:43:23,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 04:43:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 04:43:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-26 04:43:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-26 04:43:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 04:43:23,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 04:43:23,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 04:43:23,884 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 04:43:23,884 INFO L299 CfgBuilder]: Removed 21 assume(true) statements. [2021-08-26 04:43:23,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 04:43:23 BoogieIcfgContainer [2021-08-26 04:43:23,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 04:43:23,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 04:43:23,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 04:43:23,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 04:43:23,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 04:43:23" (1/3) ... [2021-08-26 04:43:23,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15006bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 04:43:23, skipping insertion in model container [2021-08-26 04:43:23,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:43:23" (2/3) ... [2021-08-26 04:43:23,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15006bef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 04:43:23, skipping insertion in model container [2021-08-26 04:43:23,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 04:43:23" (3/3) ... [2021-08-26 04:43:23,896 INFO L111 eAbstractionObserver]: Analyzing ICFG lcp.c [2021-08-26 04:43:23,900 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 04:43:23,901 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-08-26 04:43:23,945 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 04:43:23,953 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 [2021-08-26 04:43:23,953 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-08-26 04:43:23,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 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) [2021-08-26 04:43:23,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-26 04:43:23,972 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 04:43:23,973 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 04:43:23,973 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 04:43:23,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 04:43:23,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1579702917, now seen corresponding path program 1 times [2021-08-26 04:43:23,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 04:43:23,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1157748283] [2021-08-26 04:43:23,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 04:43:23,990 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 04:43:23,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 04:43:23,993 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) [2021-08-26 04:43:23,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-26 04:43:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 04:43:24,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-26 04:43:24,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 04:43:24,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 04:43:24,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 04:43:24,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 04:43:24,255 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 04:43:24,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1157748283] [2021-08-26 04:43:24,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1157748283] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 04:43:24,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 04:43:24,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-26 04:43:24,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779129748] [2021-08-26 04:43:24,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 04:43:24,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 04:43:24,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 04:43:24,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 04:43:24,275 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2021-08-26 04:43:24,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 04:43:24,288 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2021-08-26 04:43:24,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 04:43:24,290 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2021-08-26 04:43:24,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 04:43:24,296 INFO L225 Difference]: With dead ends: 51 [2021-08-26 04:43:24,296 INFO L226 Difference]: Without dead ends: 22 [2021-08-26 04:43:24,298 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 04:43:24,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-08-26 04:43:24,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-08-26 04:43:24,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.15) internal successors, (23), 21 states have internal predecessors, (23), 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) [2021-08-26 04:43:24,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-08-26 04:43:24,328 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 14 [2021-08-26 04:43:24,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 04:43:24,329 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-08-26 04:43:24,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2021-08-26 04:43:24,329 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-08-26 04:43:24,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-26 04:43:24,330 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 04:43:24,330 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 04:43:24,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-26 04:43:24,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 04:43:24,541 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 04:43:24,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 04:43:24,542 INFO L82 PathProgramCache]: Analyzing trace with hash 588290746, now seen corresponding path program 1 times [2021-08-26 04:43:24,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 04:43:24,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328595825] [2021-08-26 04:43:24,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 04:43:24,545 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 04:43:24,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 04:43:24,546 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) [2021-08-26 04:43:24,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-26 04:43:24,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 04:43:24,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-26 04:43:24,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 04:43:24,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 04:43:24,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 04:43:24,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 04:43:24,913 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 04:43:24,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328595825] [2021-08-26 04:43:24,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [328595825] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 04:43:24,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 04:43:24,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-08-26 04:43:24,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500458450] [2021-08-26 04:43:24,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-26 04:43:24,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 04:43:24,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-26 04:43:24,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-08-26 04:43:24,919 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2021-08-26 04:43:24,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 04:43:25,000 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2021-08-26 04:43:25,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 04:43:25,001 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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 16 [2021-08-26 04:43:25,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 04:43:25,003 INFO L225 Difference]: With dead ends: 37 [2021-08-26 04:43:25,003 INFO L226 Difference]: Without dead ends: 25 [2021-08-26 04:43:25,004 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 42.3ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-26 04:43:25,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-08-26 04:43:25,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2021-08-26 04:43:25,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 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) [2021-08-26 04:43:25,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2021-08-26 04:43:25,013 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 16 [2021-08-26 04:43:25,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 04:43:25,015 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2021-08-26 04:43:25,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2021-08-26 04:43:25,016 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2021-08-26 04:43:25,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-26 04:43:25,017 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 04:43:25,017 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 04:43:25,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-26 04:43:25,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 04:43:25,229 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 04:43:25,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 04:43:25,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1407848843, now seen corresponding path program 1 times [2021-08-26 04:43:25,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 04:43:25,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [626142047] [2021-08-26 04:43:25,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 04:43:25,231 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 04:43:25,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 04:43:25,233 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) [2021-08-26 04:43:25,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-26 04:43:25,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 04:43:25,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 36 conjunts are in the unsatisfiable core [2021-08-26 04:43:25,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 04:43:26,033 INFO L354 Elim1Store]: treesize reduction 90, result has 7.2 percent of original size [2021-08-26 04:43:26,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 32 [2021-08-26 04:43:26,059 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 04:43:26,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 04:43:39,537 INFO L354 Elim1Store]: treesize reduction 37, result has 74.5 percent of original size [2021-08-26 04:43:39,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 125 [2021-08-26 04:43:39,687 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 04:43:39,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [626142047] [2021-08-26 04:43:39,687 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2021-08-26 04:43:39,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [414683972] [2021-08-26 04:43:39,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 04:43:39,688 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-26 04:43:39,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-26 04:43:39,694 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-26 04:43:39,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-08-26 04:43:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 04:43:39,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-26 04:43:39,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 04:43:39,902 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 0 case distinctions, treesize of input 7 treesize of output 6 [2021-08-26 04:43:40,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 54 [2021-08-26 04:43:40,165 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-26 04:43:40,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 04:44:03,400 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-26 04:44:03,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [414683972] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-26 04:44:03,400 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 04:44:03,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2021-08-26 04:44:03,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650182069] [2021-08-26 04:44:03,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-26 04:44:03,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 04:44:03,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-26 04:44:03,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=476, Unknown=17, NotChecked=0, Total=552 [2021-08-26 04:44:03,402 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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) [2021-08-26 04:44:03,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 04:44:03,552 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2021-08-26 04:44:03,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 04:44:03,553 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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 19 [2021-08-26 04:44:03,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 04:44:03,555 INFO L225 Difference]: With dead ends: 39 [2021-08-26 04:44:03,555 INFO L226 Difference]: Without dead ends: 27 [2021-08-26 04:44:03,555 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 36528.7ms TimeCoverageRelationStatistics Valid=94, Invalid=591, Unknown=17, NotChecked=0, Total=702 [2021-08-26 04:44:03,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-08-26 04:44:03,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2021-08-26 04:44:03,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 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) [2021-08-26 04:44:03,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2021-08-26 04:44:03,559 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 19 [2021-08-26 04:44:03,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 04:44:03,559 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2021-08-26 04:44:03,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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) [2021-08-26 04:44:03,559 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2021-08-26 04:44:03,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-08-26 04:44:03,560 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 04:44:03,560 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 04:44:03,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-08-26 04:44:03,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-08-26 04:44:03,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 04:44:03,964 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 04:44:03,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 04:44:03,964 INFO L82 PathProgramCache]: Analyzing trace with hash 598502217, now seen corresponding path program 1 times [2021-08-26 04:44:03,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 04:44:03,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883467427] [2021-08-26 04:44:03,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 04:44:03,965 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 04:44:03,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 04:44:03,966 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 04:44:03,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-26 04:44:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 04:44:04,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 36 conjunts are in the unsatisfiable core [2021-08-26 04:44:04,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 04:44:04,783 INFO L354 Elim1Store]: treesize reduction 90, result has 7.2 percent of original size [2021-08-26 04:44:04,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 32 [2021-08-26 04:44:04,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 04:44:04,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 04:44:18,127 INFO L354 Elim1Store]: treesize reduction 37, result has 74.5 percent of original size [2021-08-26 04:44:18,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 125 [2021-08-26 04:44:18,318 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 04:44:18,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883467427] [2021-08-26 04:44:18,319 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2021-08-26 04:44:18,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1025774639] [2021-08-26 04:44:18,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 04:44:18,319 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-08-26 04:44:18,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2021-08-26 04:44:18,326 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-08-26 04:44:18,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-08-26 04:44:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 04:44:18,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-26 04:44:18,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 04:44:18,588 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 0 case distinctions, treesize of input 7 treesize of output 6 [2021-08-26 04:44:18,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 67 treesize of output 57 [2021-08-26 04:44:18,769 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-26 04:44:18,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 04:44:49,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-26 04:44:49,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1025774639] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 04:44:49,340 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 04:44:49,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-08-26 04:44:49,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105283803] [2021-08-26 04:44:49,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-26 04:44:49,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 04:44:49,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-26 04:44:49,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=426, Unknown=21, NotChecked=0, Total=506 [2021-08-26 04:44:49,342 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 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) [2021-08-26 04:44:49,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 04:44:49,460 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2021-08-26 04:44:49,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 04:44:49,460 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 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 19 [2021-08-26 04:44:49,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 04:44:49,461 INFO L225 Difference]: With dead ends: 25 [2021-08-26 04:44:49,461 INFO L226 Difference]: Without dead ends: 23 [2021-08-26 04:44:49,461 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 43631.1ms TimeCoverageRelationStatistics Valid=99, Invalid=530, Unknown=21, NotChecked=0, Total=650 [2021-08-26 04:44:49,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-08-26 04:44:49,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-08-26 04:44:49,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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) [2021-08-26 04:44:49,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2021-08-26 04:44:49,465 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 19 [2021-08-26 04:44:49,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 04:44:49,465 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2021-08-26 04:44:49,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 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) [2021-08-26 04:44:49,466 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2021-08-26 04:44:49,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-26 04:44:49,466 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 04:44:49,467 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 04:44:49,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-08-26 04:44:49,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-08-26 04:44:49,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 04:44:49,870 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 04:44:49,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 04:44:49,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1574202674, now seen corresponding path program 1 times [2021-08-26 04:44:49,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 04:44:49,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2122207410] [2021-08-26 04:44:49,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 04:44:49,872 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 04:44:49,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 04:44:49,873 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 04:44:49,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-26 04:44:50,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 04:44:50,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 30 conjunts are in the unsatisfiable core [2021-08-26 04:44:50,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 04:44:51,644 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 04:44:51,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 04:44:53,069 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 04:44:53,069 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 04:44:53,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2122207410] [2021-08-26 04:44:53,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2122207410] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-26 04:44:53,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 04:44:53,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 22 [2021-08-26 04:44:53,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734619567] [2021-08-26 04:44:53,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-08-26 04:44:53,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 04:44:53,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-08-26 04:44:53,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2021-08-26 04:44:53,072 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 22 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 22 states have internal predecessors, (41), 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) [2021-08-26 04:45:02,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 04:45:02,284 INFO L93 Difference]: Finished difference Result 72 states and 81 transitions. [2021-08-26 04:45:02,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-26 04:45:02,285 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 22 states have internal predecessors, (41), 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 22 [2021-08-26 04:45:02,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 04:45:02,286 INFO L225 Difference]: With dead ends: 72 [2021-08-26 04:45:02,286 INFO L226 Difference]: Without dead ends: 35 [2021-08-26 04:45:02,287 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 410 ImplicationChecksByTransitivity, 8002.2ms TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2021-08-26 04:45:02,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-08-26 04:45:02,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2021-08-26 04:45:02,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.1290322580645162) internal successors, (35), 31 states have internal predecessors, (35), 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) [2021-08-26 04:45:02,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2021-08-26 04:45:02,291 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 22 [2021-08-26 04:45:02,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 04:45:02,291 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2021-08-26 04:45:02,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.8636363636363635) internal successors, (41), 22 states have internal predecessors, (41), 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) [2021-08-26 04:45:02,292 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2021-08-26 04:45:02,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-08-26 04:45:02,292 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 04:45:02,293 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 04:45:02,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-26 04:45:02,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 04:45:02,502 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 04:45:02,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 04:45:02,503 INFO L82 PathProgramCache]: Analyzing trace with hash -437965597, now seen corresponding path program 2 times [2021-08-26 04:45:02,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 04:45:02,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1646136753] [2021-08-26 04:45:02,503 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-26 04:45:02,504 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 04:45:02,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 04:45:02,505 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 04:45:02,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-08-26 04:45:02,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-26 04:45:02,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-26 04:45:02,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 29 conjunts are in the unsatisfiable core [2021-08-26 04:45:02,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 04:45:04,299 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-08-26 04:45:04,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 04:45:05,940 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-08-26 04:45:05,940 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 04:45:05,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1646136753] [2021-08-26 04:45:05,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1646136753] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-26 04:45:05,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 04:45:05,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2021-08-26 04:45:05,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381771471] [2021-08-26 04:45:05,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-26 04:45:05,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 04:45:05,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-26 04:45:05,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2021-08-26 04:45:05,944 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 18 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 18 states have internal predecessors, (41), 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) [2021-08-26 04:45:08,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 04:45:08,528 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2021-08-26 04:45:08,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-26 04:45:08,530 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 18 states have internal predecessors, (41), 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 31 [2021-08-26 04:45:08,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 04:45:08,531 INFO L225 Difference]: With dead ends: 47 [2021-08-26 04:45:08,531 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 04:45:08,532 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 3112.7ms TimeCoverageRelationStatistics Valid=207, Invalid=605, Unknown=0, NotChecked=0, Total=812 [2021-08-26 04:45:08,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 04:45:08,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 04:45:08,532 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) [2021-08-26 04:45:08,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 04:45:08,532 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-08-26 04:45:08,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 04:45:08,533 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 04:45:08,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 18 states have internal predecessors, (41), 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) [2021-08-26 04:45:08,533 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 04:45:08,533 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 04:45:08,535 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 04:45:08,535 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 04:45:08,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-08-26 04:45:08,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 04:45:08,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 04:45:08,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 04:45:08,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 04:45:08,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 04:45:10,342 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-08-26 04:45:10,342 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-08-26 04:45:10,342 INFO L860 garLoopResultBuilder]: At program point L48(lines 35 49) the Hoare annotation is: true [2021-08-26 04:45:10,342 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 04:45:10,343 INFO L857 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2021-08-26 04:45:10,343 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 04:45:10,343 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 04:45:10,343 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2021-08-26 04:45:10,343 INFO L857 garLoopResultBuilder]: For program point L24(lines 24 33) no Hoare annotation was computed. [2021-08-26 04:45:10,343 INFO L857 garLoopResultBuilder]: For program point L12(lines 12 14) no Hoare annotation was computed. [2021-08-26 04:45:10,343 INFO L857 garLoopResultBuilder]: For program point L12-1(lines 12 14) no Hoare annotation was computed. [2021-08-26 04:45:10,343 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 04:45:10,343 INFO L853 garLoopResultBuilder]: At program point L21(lines 16 22) the Hoare annotation is: (or (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (bvslt ULTIMATE.start_main_~n~0 (_ bv1073741824 32)) (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32)) (= .cse0 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) (or (not (bvslt (bvadd |ULTIMATE.start_lcp_#res| ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~n~0)) (not (bvslt (bvadd |ULTIMATE.start_lcp_#res| ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~n~0))) (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32)) (= .cse0 (select |#memory_int| ULTIMATE.start_lcp_~a.base)) (bvsge ULTIMATE.start_main_~y~0 (_ bv0 32)) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc18.base|)) (or (not (bvslt (bvadd ULTIMATE.start_lcp_~l~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~n~0)) (not (bvslt (bvadd ULTIMATE.start_lcp_~l~0 ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~n~0))))) (and (= |ULTIMATE.start_lcp_#res| (_ bv0 32)) (= ULTIMATE.start_lcp_~l~0 (_ bv0 32)))) [2021-08-26 04:45:10,343 INFO L857 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2021-08-26 04:45:10,343 INFO L857 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2021-08-26 04:45:10,343 INFO L857 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2021-08-26 04:45:10,343 INFO L857 garLoopResultBuilder]: For program point L13-4(line 13) no Hoare annotation was computed. [2021-08-26 04:45:10,343 INFO L857 garLoopResultBuilder]: For program point L5(lines 5 7) no Hoare annotation was computed. [2021-08-26 04:45:10,344 INFO L857 garLoopResultBuilder]: For program point L5-1(lines 5 7) no Hoare annotation was computed. [2021-08-26 04:45:10,344 INFO L857 garLoopResultBuilder]: For program point L5-2(lines 5 7) no Hoare annotation was computed. [2021-08-26 04:45:10,344 INFO L857 garLoopResultBuilder]: For program point L18-1(line 18) no Hoare annotation was computed. [2021-08-26 04:45:10,344 INFO L857 garLoopResultBuilder]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2021-08-26 04:45:10,344 INFO L853 garLoopResultBuilder]: At program point L18-5(lines 18 20) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (bvslt ULTIMATE.start_main_~n~0 (_ bv1073741824 32)) (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32)) (= ULTIMATE.start_lcp_~y ULTIMATE.start_main_~y~0) (= .cse0 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) (= ULTIMATE.start_lcp_~n ULTIMATE.start_main_~n~0) (= ULTIMATE.start_lcp_~x ULTIMATE.start_main_~x~0) (bvsge ULTIMATE.start_main_~x~0 (_ bv0 32)) (= .cse0 (select |#memory_int| ULTIMATE.start_lcp_~a.base)) (bvsge ULTIMATE.start_main_~y~0 (_ bv0 32)) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc18.base|)))) [2021-08-26 04:45:10,344 INFO L857 garLoopResultBuilder]: For program point L18-6(lines 18 20) no Hoare annotation was computed. [2021-08-26 04:45:10,345 INFO L857 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2021-08-26 04:45:10,345 INFO L857 garLoopResultBuilder]: For program point L6-2(line 6) no Hoare annotation was computed. [2021-08-26 04:45:10,345 INFO L857 garLoopResultBuilder]: For program point L6-4(line 6) no Hoare annotation was computed. [2021-08-26 04:45:10,348 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 04:45:10,352 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.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) [2021-08-26 04:45:10,354 INFO L168 Benchmark]: Toolchain (without parser) took 107342.76 ms. Allocated memory was 58.7 MB in the beginning and 98.6 MB in the end (delta: 39.8 MB). Free memory was 37.5 MB in the beginning and 73.2 MB in the end (delta: -35.7 MB). Peak memory consumption was 56.2 MB. Max. memory is 16.1 GB. [2021-08-26 04:45:10,354 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 58.7 MB. Free memory was 40.9 MB in the beginning and 40.8 MB in the end (delta: 45.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 04:45:10,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.65 ms. Allocated memory is still 58.7 MB. Free memory was 37.3 MB in the beginning and 41.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 04:45:10,354 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.38 ms. Allocated memory is still 58.7 MB. Free memory was 41.0 MB in the beginning and 39.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 04:45:10,355 INFO L168 Benchmark]: Boogie Preprocessor took 22.51 ms. Allocated memory is still 58.7 MB. Free memory was 39.2 MB in the beginning and 37.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 04:45:10,355 INFO L168 Benchmark]: RCFGBuilder took 485.24 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 37.6 MB in the beginning and 50.2 MB in the end (delta: -12.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2021-08-26 04:45:10,355 INFO L168 Benchmark]: TraceAbstraction took 106461.99 ms. Allocated memory was 75.5 MB in the beginning and 98.6 MB in the end (delta: 23.1 MB). Free memory was 50.0 MB in the beginning and 73.2 MB in the end (delta: -23.3 MB). Peak memory consumption was 53.4 MB. Max. memory is 16.1 GB. [2021-08-26 04:45:10,356 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 58.7 MB. Free memory was 40.9 MB in the beginning and 40.8 MB in the end (delta: 45.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 326.65 ms. Allocated memory is still 58.7 MB. Free memory was 37.3 MB in the beginning and 41.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.38 ms. Allocated memory is still 58.7 MB. Free memory was 41.0 MB in the beginning and 39.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.51 ms. Allocated memory is still 58.7 MB. Free memory was 39.2 MB in the beginning and 37.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 485.24 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 37.6 MB in the beginning and 50.2 MB in the end (delta: -12.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 106461.99 ms. Allocated memory was 75.5 MB in the beginning and 98.6 MB in the end (delta: 23.1 MB). Free memory was 50.0 MB in the beginning and 73.2 MB in the end (delta: -23.3 MB). Peak memory consumption was 53.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 13]: 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, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 106404.3ms, OverallIterations: 6, TraceHistogramMax: 5, EmptinessCheckTime: 13.7ms, AutomataDifference: 12202.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 1605.8ms, InitialAbstractionConstructionTime: 8.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 91 SDtfs, 345 SDslu, 239 SDs, 0 SdLazy, 379 SolverSat, 113 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3099.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 330 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 725 ImplicationChecksByTransitivity, 91317.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=5, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 38.2ms AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 14 NumberOfFragments, 112 HoareAnnotationTreeSize, 3 FomulaSimplifications, 283 FormulaSimplificationTreeSizeReduction, 122.4ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 225 FormulaSimplificationTreeSizeReductionInter, 1478.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 105.0ms SsaConstructionTime, 586.8ms SatisfiabilityAnalysisTime, 60584.1ms InterpolantComputationTime, 121 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 230 ConstructedInterpolants, 34 QuantifiedInterpolants, 2736 SizeOfPredicates, 93 NumberOfNonLiveVariables, 563 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 54/78 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 2 specifications checked. All of them hold - 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. [2021-08-26 04:45:10,471 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...