./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/elimination_max.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5be8dfedae2f3b57013d05056ea8338982d51d7e ..................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5be8dfedae2f3b57013d05056ea8338982d51d7e ..................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-cad4683 [2019-11-15 20:46:14,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:46:14,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:46:14,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:46:14,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:46:14,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:46:14,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:46:14,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:46:14,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:46:14,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:46:14,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:46:14,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:46:14,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:46:14,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:46:14,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:46:14,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:46:14,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:46:14,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:46:14,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:46:14,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:46:14,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:46:14,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:46:14,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:46:14,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:46:14,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:46:14,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:46:14,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:46:14,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:46:14,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:46:14,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:46:14,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:46:14,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:46:14,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:46:14,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:46:14,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:46:14,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:46:14,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:46:14,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:46:14,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:46:14,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:46:14,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:46:14,363 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:46:14,376 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:46:14,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:46:14,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:46:14,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:46:14,378 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:46:14,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:46:14,378 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:46:14,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:46:14,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:46:14,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:46:14,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:46:14,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:46:14,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:46:14,380 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:46:14,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:46:14,380 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:46:14,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:46:14,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:46:14,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:46:14,381 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:46:14,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:46:14,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:46:14,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:46:14,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:46:14,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:46:14,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:46:14,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:46:14,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:46:14,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer 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(__VERIFIER_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 -> 5be8dfedae2f3b57013d05056ea8338982d51d7e [2019-11-15 20:46:14,409 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:46:14,423 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:46:14,429 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:46:14,430 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:46:14,431 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:46:14,431 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/../../sv-benchmarks/c/verifythis/elimination_max.c [2019-11-15 20:46:14,484 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/data/1125eceb5/d4f361cf6bdb4a08ac7b425cedbbc312/FLAG536771baa [2019-11-15 20:46:14,843 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:46:14,845 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/sv-benchmarks/c/verifythis/elimination_max.c [2019-11-15 20:46:14,851 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/data/1125eceb5/d4f361cf6bdb4a08ac7b425cedbbc312/FLAG536771baa [2019-11-15 20:46:15,214 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/data/1125eceb5/d4f361cf6bdb4a08ac7b425cedbbc312 [2019-11-15 20:46:15,217 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:46:15,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:46:15,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:46:15,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:46:15,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:46:15,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:46:15" (1/1) ... [2019-11-15 20:46:15,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3df9745b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:15, skipping insertion in model container [2019-11-15 20:46:15,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:46:15" (1/1) ... [2019-11-15 20:46:15,233 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:46:15,248 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:46:15,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:46:15,459 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:46:15,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:46:15,553 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:46:15,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:15 WrapperNode [2019-11-15 20:46:15,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:46:15,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:46:15,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:46:15,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:46:15,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:15" (1/1) ... [2019-11-15 20:46:15,571 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:15" (1/1) ... [2019-11-15 20:46:15,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:46:15,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:46:15,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:46:15,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:46:15,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:15" (1/1) ... [2019-11-15 20:46:15,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:15" (1/1) ... [2019-11-15 20:46:15,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:15" (1/1) ... [2019-11-15 20:46:15,612 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:15" (1/1) ... [2019-11-15 20:46:15,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:15" (1/1) ... [2019-11-15 20:46:15,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:15" (1/1) ... [2019-11-15 20:46:15,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:15" (1/1) ... [2019-11-15 20:46:15,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:46:15,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:46:15,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:46:15,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:46:15,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:46:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-15 20:46:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:46:15,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:46:15,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 20:46:15,888 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:46:15,888 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-15 20:46:15,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:46:15 BoogieIcfgContainer [2019-11-15 20:46:15,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:46:15,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:46:15,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:46:15,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:46:15,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:46:15" (1/3) ... [2019-11-15 20:46:15,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688eda1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:46:15, skipping insertion in model container [2019-11-15 20:46:15,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:15" (2/3) ... [2019-11-15 20:46:15,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@688eda1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:46:15, skipping insertion in model container [2019-11-15 20:46:15,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:46:15" (3/3) ... [2019-11-15 20:46:15,897 INFO L109 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2019-11-15 20:46:15,906 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:46:15,913 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-15 20:46:15,923 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-15 20:46:15,943 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:46:15,944 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:46:15,944 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:46:15,944 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:46:15,944 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:46:15,944 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:46:15,944 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:46:15,944 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:46:15,977 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-15 20:46:15,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 20:46:15,982 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:46:15,983 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:46:15,985 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:46:15,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:46:15,989 INFO L82 PathProgramCache]: Analyzing trace with hash 1804411268, now seen corresponding path program 1 times [2019-11-15 20:46:15,997 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:46:15,998 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009359848] [2019-11-15 20:46:15,998 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:46:15,998 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:46:15,998 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:46:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:46:16,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:46:16,112 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009359848] [2019-11-15 20:46:16,113 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:46:16,113 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-15 20:46:16,114 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979786000] [2019-11-15 20:46:16,117 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:46:16,117 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:46:16,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:46:16,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:46:16,128 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-11-15 20:46:16,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:46:16,141 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-11-15 20:46:16,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:46:16,142 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-15 20:46:16,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:46:16,149 INFO L225 Difference]: With dead ends: 35 [2019-11-15 20:46:16,149 INFO L226 Difference]: Without dead ends: 16 [2019-11-15 20:46:16,152 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:46:16,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-15 20:46:16,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-15 20:46:16,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-15 20:46:16,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-11-15 20:46:16,183 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 7 [2019-11-15 20:46:16,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:46:16,183 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-11-15 20:46:16,183 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:46:16,184 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-11-15 20:46:16,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 20:46:16,184 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:46:16,184 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:46:16,185 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:46:16,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:46:16,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1804113358, now seen corresponding path program 1 times [2019-11-15 20:46:16,185 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:46:16,186 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700981219] [2019-11-15 20:46:16,186 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:46:16,186 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:46:16,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:46:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:46:16,257 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (const Int) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:478) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:250) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.term(WrapperScript.java:250) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.termWithLocalSimplification(SmtUtils.java:1305) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.termWithLocalSimplification(SmtUtils.java:1186) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.TermTransferrer.convertApplicationTerm(TermTransferrer.java:182) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$BuildApplicationTerm.walk(TermTransformer.java:339) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computePredicates(NestedInterpolantsBuilder.java:574) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:305) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.checkFeasibility(TraceAbstractionRefinementEngine.java:244) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-15 20:46:16,262 INFO L168 Benchmark]: Toolchain (without parser) took 1043.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -112.2 MB). Peak memory consumption was 5.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:46:16,263 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:46:16,263 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:46:16,264 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.51 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:46:16,264 INFO L168 Benchmark]: Boogie Preprocessor took 26.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:46:16,265 INFO L168 Benchmark]: RCFGBuilder took 254.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-11-15 20:46:16,266 INFO L168 Benchmark]: TraceAbstraction took 369.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:46:16,269 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 335.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.51 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.58 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 254.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 369.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Undeclared function symbol (const Int) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Undeclared function symbol (const Int): de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:478) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-11-15 20:46:18,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:46:18,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:46:18,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:46:18,423 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:46:18,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:46:18,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:46:18,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:46:18,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:46:18,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:46:18,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:46:18,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:46:18,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:46:18,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:46:18,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:46:18,451 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:46:18,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:46:18,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:46:18,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:46:18,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:46:18,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:46:18,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:46:18,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:46:18,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:46:18,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:46:18,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:46:18,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:46:18,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:46:18,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:46:18,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:46:18,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:46:18,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:46:18,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:46:18,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:46:18,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:46:18,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:46:18,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:46:18,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:46:18,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:46:18,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:46:18,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:46:18,486 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 20:46:18,514 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:46:18,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:46:18,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:46:18,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:46:18,525 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:46:18,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:46:18,526 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:46:18,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:46:18,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:46:18,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:46:18,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:46:18,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:46:18,527 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 20:46:18,527 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 20:46:18,528 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:46:18,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:46:18,529 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:46:18,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:46:18,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:46:18,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:46:18,529 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:46:18,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:46:18,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:46:18,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:46:18,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:46:18,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:46:18,531 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 20:46:18,531 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 20:46:18,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:46:18,532 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 20:46:18,532 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer 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(__VERIFIER_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 -> 5be8dfedae2f3b57013d05056ea8338982d51d7e [2019-11-15 20:46:18,567 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:46:18,578 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:46:18,581 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:46:18,582 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:46:18,583 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:46:18,583 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/../../sv-benchmarks/c/verifythis/elimination_max.c [2019-11-15 20:46:18,634 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/data/43df0a724/1314a79d3f3446fba4adee0cb8a606b9/FLAG0613131f5 [2019-11-15 20:46:18,969 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:46:18,970 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/sv-benchmarks/c/verifythis/elimination_max.c [2019-11-15 20:46:18,975 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/data/43df0a724/1314a79d3f3446fba4adee0cb8a606b9/FLAG0613131f5 [2019-11-15 20:46:19,361 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/data/43df0a724/1314a79d3f3446fba4adee0cb8a606b9 [2019-11-15 20:46:19,362 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:46:19,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:46:19,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:46:19,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:46:19,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:46:19,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:46:19" (1/1) ... [2019-11-15 20:46:19,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f520ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:19, skipping insertion in model container [2019-11-15 20:46:19,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:46:19" (1/1) ... [2019-11-15 20:46:19,378 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:46:19,393 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:46:19,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:46:19,615 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:46:19,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:46:19,664 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:46:19,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:19 WrapperNode [2019-11-15 20:46:19,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:46:19,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:46:19,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:46:19,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:46:19,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:19" (1/1) ... [2019-11-15 20:46:19,758 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:19" (1/1) ... [2019-11-15 20:46:19,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:46:19,778 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:46:19,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:46:19,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:46:19,787 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:19" (1/1) ... [2019-11-15 20:46:19,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:19" (1/1) ... [2019-11-15 20:46:19,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:19" (1/1) ... [2019-11-15 20:46:19,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:19" (1/1) ... [2019-11-15 20:46:19,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:19" (1/1) ... [2019-11-15 20:46:19,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:19" (1/1) ... [2019-11-15 20:46:19,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:19" (1/1) ... [2019-11-15 20:46:19,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:46:19,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:46:19,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:46:19,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:46:19,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:46:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-15 20:46:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-15 20:46:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:46:19,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:46:20,178 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:46:20,178 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-15 20:46:20,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:46:20 BoogieIcfgContainer [2019-11-15 20:46:20,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:46:20,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:46:20,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:46:20,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:46:20,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:46:19" (1/3) ... [2019-11-15 20:46:20,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6a9281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:46:20, skipping insertion in model container [2019-11-15 20:46:20,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:46:19" (2/3) ... [2019-11-15 20:46:20,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e6a9281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:46:20, skipping insertion in model container [2019-11-15 20:46:20,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:46:20" (3/3) ... [2019-11-15 20:46:20,185 INFO L109 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2019-11-15 20:46:20,194 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:46:20,201 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-15 20:46:20,211 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-15 20:46:20,272 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:46:20,272 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:46:20,272 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:46:20,273 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:46:20,273 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:46:20,273 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:46:20,273 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:46:20,273 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:46:20,291 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-15 20:46:20,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 20:46:20,297 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:46:20,298 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:46:20,300 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:46:20,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:46:20,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1804411268, now seen corresponding path program 1 times [2019-11-15 20:46:20,318 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:46:20,318 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [385030] [2019-11-15 20:46:20,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 20:46:20,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:46:20,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-15 20:46:20,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:46:20,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:46:20,434 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:46:20,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:46:20,440 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [385030] [2019-11-15 20:46:20,440 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:46:20,441 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-15 20:46:20,441 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72269695] [2019-11-15 20:46:20,445 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-15 20:46:20,446 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:46:20,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-15 20:46:20,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:46:20,462 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-11-15 20:46:20,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:46:20,483 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-11-15 20:46:20,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-15 20:46:20,485 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-15 20:46:20,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:46:20,495 INFO L225 Difference]: With dead ends: 35 [2019-11-15 20:46:20,496 INFO L226 Difference]: Without dead ends: 16 [2019-11-15 20:46:20,503 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-15 20:46:20,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-15 20:46:20,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-15 20:46:20,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-15 20:46:20,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2019-11-15 20:46:20,539 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 7 [2019-11-15 20:46:20,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:46:20,540 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2019-11-15 20:46:20,540 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-15 20:46:20,540 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2019-11-15 20:46:20,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 20:46:20,541 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:46:20,542 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:46:20,743 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 20:46:20,743 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:46:20,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:46:20,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1804113358, now seen corresponding path program 1 times [2019-11-15 20:46:20,744 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 20:46:20,744 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [325653931] [2019-11-15 20:46:20,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ea1a243c-cc8a-4e39-8a83-d9db3206e484/bin/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 20:46:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:46:20,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-15 20:46:20,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 20:46:20,862 INFO L375 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 [2019-11-15 20:46:20,862 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-15 20:46:20,870 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-15 20:46:20,870 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-15 20:46:20,870 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:7, output treesize:6 [2019-11-15 20:46:20,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 20:46:20,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:46:20,933 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-15 20:46:29,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:46:29,082 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [325653931] [2019-11-15 20:46:29,083 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:46:29,083 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-15 20:46:29,083 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475476183] [2019-11-15 20:46:29,085 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 20:46:29,085 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-15 20:46:29,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 20:46:29,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=36, Unknown=4, NotChecked=0, Total=56 [2019-11-15 20:46:29,086 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 8 states. [2019-11-15 20:46:31,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:46:31,208 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2019-11-15 20:46:31,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 20:46:31,209 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2019-11-15 20:46:31,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:46:31,210 INFO L225 Difference]: With dead ends: 16 [2019-11-15 20:46:31,210 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 20:46:31,211 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=31, Invalid=54, Unknown=5, NotChecked=0, Total=90 [2019-11-15 20:46:31,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 20:46:31,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 20:46:31,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 20:46:31,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 20:46:31,213 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-15 20:46:31,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:46:31,213 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:46:31,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 20:46:31,215 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 20:46:31,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 20:46:31,420 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-15 20:46:31,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 20:46:31,496 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-15 20:46:31,496 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-15 20:46:31,496 INFO L443 ceAbstractionStarter]: For program point L-1-1(line -1) no Hoare annotation was computed. [2019-11-15 20:46:31,497 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 20:46:31,497 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 20:46:31,497 INFO L443 ceAbstractionStarter]: For program point L28(lines 28 29) no Hoare annotation was computed. [2019-11-15 20:46:31,497 INFO L439 ceAbstractionStarter]: At program point L28-2(lines 18 30) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (= .cse0 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (= (select |#memory_int| |ULTIMATE.start_main_#t~malloc2.base|) .cse0))) [2019-11-15 20:46:31,498 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-15 20:46:31,498 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-15 20:46:31,498 INFO L443 ceAbstractionStarter]: For program point L4-1(lines 4 6) no Hoare annotation was computed. [2019-11-15 20:46:31,498 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 20:46:31,498 INFO L446 ceAbstractionStarter]: At program point L42(lines 10 43) the Hoare annotation is: true [2019-11-15 20:46:31,498 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-15 20:46:31,498 INFO L443 ceAbstractionStarter]: For program point L5-1(line 5) no Hoare annotation was computed. [2019-11-15 20:46:31,499 INFO L443 ceAbstractionStarter]: For program point L38-2(lines 38 40) no Hoare annotation was computed. [2019-11-15 20:46:31,499 INFO L439 ceAbstractionStarter]: At program point L38-3(lines 38 40) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (= .cse0 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= (select |#memory_int| |ULTIMATE.start_main_#t~malloc2.base|) .cse0))) [2019-11-15 20:46:31,499 INFO L443 ceAbstractionStarter]: For program point L5-3(line 5) no Hoare annotation was computed. [2019-11-15 20:46:31,499 INFO L443 ceAbstractionStarter]: For program point L38-4(lines 38 40) no Hoare annotation was computed. [2019-11-15 20:46:31,499 INFO L443 ceAbstractionStarter]: For program point L5-4(line 5) no Hoare annotation was computed. [2019-11-15 20:46:31,499 INFO L443 ceAbstractionStarter]: For program point L18-2(lines 18 30) no Hoare annotation was computed. [2019-11-15 20:46:31,505 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:209) 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:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:555) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:255) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:212) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) 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:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-15 20:46:31,508 INFO L168 Benchmark]: Toolchain (without parser) took 12144.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -112.7 MB). Peak memory consumption was 45.1 MB. Max. memory is 11.5 GB. [2019-11-15 20:46:31,509 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:46:31,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.25 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:46:31,510 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -213.5 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2019-11-15 20:46:31,510 INFO L168 Benchmark]: Boogie Preprocessor took 26.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:46:31,511 INFO L168 Benchmark]: RCFGBuilder took 374.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:46:31,512 INFO L168 Benchmark]: TraceAbstraction took 11326.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.9 MB). Peak memory consumption was 58.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:46:31,515 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 301.25 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 112.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -213.5 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 374.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11326.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.9 MB). Peak memory consumption was 58.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...