./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/nec40.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/nec40.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/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 1154acb41caa49c0da18a0d5cc92ede9101ff854 ........................................................................................................................................................................................................................................................................................................................ 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_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/nec40.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/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 1154acb41caa49c0da18a0d5cc92ede9101ff854 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-20 10:20:53,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:20:53,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:20:53,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:20:53,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:20:53,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:20:53,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:20:53,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:20:53,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:20:53,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:20:53,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:20:53,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:20:53,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:20:53,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:20:53,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:20:53,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:20:53,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:20:53,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:20:53,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:20:53,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:20:53,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:20:53,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:20:53,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:20:53,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:20:53,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:20:53,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:20:53,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:20:53,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:20:53,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:20:53,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:20:53,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:20:53,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:20:53,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:20:53,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:20:53,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:20:53,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:20:53,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:20:53,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:20:53,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:20:53,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:20:53,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:20:53,249 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 10:20:53,274 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:20:53,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:20:53,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:20:53,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:20:53,286 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:20:53,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:20:53,287 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:20:53,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:20:53,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:20:53,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:20:53,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:20:53,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:20:53,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:20:53,288 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:20:53,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:20:53,288 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:20:53,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:20:53,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:20:53,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:20:53,290 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:20:53,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:20:53,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:20:53,291 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:20:53,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:20:53,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:20:53,291 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:20:53,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:20:53,292 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:20:53,292 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_0e065808-968a-40c5-a218-96837eb7337e/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 -> 1154acb41caa49c0da18a0d5cc92ede9101ff854 [2019-11-20 10:20:53,444 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:20:53,457 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:20:53,459 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:20:53,460 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:20:53,461 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:20:53,461 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/../../sv-benchmarks/c/loops/nec40.c [2019-11-20 10:20:53,513 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/data/6355aabfa/13c6582f17e14f06aa1dc6a510b1aab9/FLAG5061cc1fe [2019-11-20 10:20:53,919 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:20:53,920 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/sv-benchmarks/c/loops/nec40.c [2019-11-20 10:20:53,927 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/data/6355aabfa/13c6582f17e14f06aa1dc6a510b1aab9/FLAG5061cc1fe [2019-11-20 10:20:53,942 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/data/6355aabfa/13c6582f17e14f06aa1dc6a510b1aab9 [2019-11-20 10:20:53,945 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:20:53,946 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:20:53,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:20:53,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:20:53,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:20:53,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:20:53" (1/1) ... [2019-11-20 10:20:53,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@464f5586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:53, skipping insertion in model container [2019-11-20 10:20:53,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:20:53" (1/1) ... [2019-11-20 10:20:53,963 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:20:53,979 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:20:54,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:20:54,231 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:20:54,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:20:54,274 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:20:54,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:54 WrapperNode [2019-11-20 10:20:54,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:20:54,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:20:54,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:20:54,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:20:54,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:54" (1/1) ... [2019-11-20 10:20:54,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:54" (1/1) ... [2019-11-20 10:20:54,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:20:54,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:20:54,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:20:54,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:20:54,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:54" (1/1) ... [2019-11-20 10:20:54,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:54" (1/1) ... [2019-11-20 10:20:54,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:54" (1/1) ... [2019-11-20 10:20:54,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:54" (1/1) ... [2019-11-20 10:20:54,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:54" (1/1) ... [2019-11-20 10:20:54,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:54" (1/1) ... [2019-11-20 10:20:54,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:54" (1/1) ... [2019-11-20 10:20:54,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:20:54,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:20:54,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:20:54,361 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:20:54,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/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 [2019-11-20 10:20:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 10:20:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:20:54,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:20:54,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 10:20:54,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:20:54,647 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:20:54,647 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 10:20:54,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:20:54 BoogieIcfgContainer [2019-11-20 10:20:54,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:20:54,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:20:54,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:20:54,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:20:54,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:20:53" (1/3) ... [2019-11-20 10:20:54,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ebf12ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:20:54, skipping insertion in model container [2019-11-20 10:20:54,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:54" (2/3) ... [2019-11-20 10:20:54,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ebf12ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:20:54, skipping insertion in model container [2019-11-20 10:20:54,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:20:54" (3/3) ... [2019-11-20 10:20:54,656 INFO L109 eAbstractionObserver]: Analyzing ICFG nec40.c [2019-11-20 10:20:54,665 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:20:54,671 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 10:20:54,684 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 10:20:54,724 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:20:54,727 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:20:54,727 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:20:54,727 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:20:54,727 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:20:54,728 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:20:54,728 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:20:54,728 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:20:54,741 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-20 10:20:54,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 10:20:54,752 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:20:54,753 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:20:54,760 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:20:54,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:20:54,767 INFO L82 PathProgramCache]: Analyzing trace with hash 383725322, now seen corresponding path program 1 times [2019-11-20 10:20:54,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:20:54,774 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364507161] [2019-11-20 10:20:54,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:20:54,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:20:54,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:20:54,885 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364507161] [2019-11-20 10:20:54,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:20:54,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 10:20:54,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848319315] [2019-11-20 10:20:54,889 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 10:20:54,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:20:54,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 10:20:54,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 10:20:54,901 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2019-11-20 10:20:54,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:20:54,914 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2019-11-20 10:20:54,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 10:20:54,915 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-20 10:20:54,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:20:54,924 INFO L225 Difference]: With dead ends: 24 [2019-11-20 10:20:54,924 INFO L226 Difference]: Without dead ends: 10 [2019-11-20 10:20:54,927 INFO L630 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 [2019-11-20 10:20:54,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-20 10:20:54,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-20 10:20:54,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-20 10:20:54,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-11-20 10:20:54,959 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2019-11-20 10:20:54,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:20:54,959 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-11-20 10:20:54,959 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 10:20:54,960 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-11-20 10:20:54,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 10:20:54,960 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:20:54,960 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:20:54,960 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:20:54,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:20:54,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1213354159, now seen corresponding path program 1 times [2019-11-20 10:20:54,961 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:20:54,961 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102602805] [2019-11-20 10:20:54,961 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:20:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:20:55,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:20:55,024 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102602805] [2019-11-20 10:20:55,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:20:55,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 10:20:55,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110275523] [2019-11-20 10:20:55,026 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 10:20:55,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:20:55,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 10:20:55,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:20:55,027 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 3 states. [2019-11-20 10:20:55,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:20:55,068 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-11-20 10:20:55,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:20:55,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-20 10:20:55,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:20:55,074 INFO L225 Difference]: With dead ends: 18 [2019-11-20 10:20:55,075 INFO L226 Difference]: Without dead ends: 12 [2019-11-20 10:20:55,075 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 10:20:55,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-20 10:20:55,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-20 10:20:55,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-20 10:20:55,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-11-20 10:20:55,078 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2019-11-20 10:20:55,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:20:55,078 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-11-20 10:20:55,079 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 10:20:55,079 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-11-20 10:20:55,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 10:20:55,079 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:20:55,079 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:20:55,080 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:20:55,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:20:55,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1626878186, now seen corresponding path program 1 times [2019-11-20 10:20:55,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:20:55,080 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463342600] [2019-11-20 10:20:55,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:20:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:20:55,135 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:1307) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.SmtUtils.termWithLocalSimplification(SmtUtils.java:1188) 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.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computePredicates(NestedInterpolantsBuilder.java:573) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:171) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:300) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:202) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:107) 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.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) 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:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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) [2019-11-20 10:20:55,139 INFO L168 Benchmark]: Toolchain (without parser) took 1192.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -163.1 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. [2019-11-20 10:20:55,140 INFO L168 Benchmark]: CDTParser took 0.24 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. [2019-11-20 10:20:55,141 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -211.2 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:20:55,141 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:20:55,141 INFO L168 Benchmark]: Boogie Preprocessor took 43.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:20:55,142 INFO L168 Benchmark]: RCFGBuilder took 287.96 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: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-11-20 10:20:55,143 INFO L168 Benchmark]: TraceAbstraction took 488.07 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: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:20:55,146 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 325.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -211.2 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 287.96 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: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 488.07 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: 25.9 MB). Peak memory consumption was 25.9 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 0.1.24-678e011 [2019-11-20 10:20:57,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:20:57,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:20:57,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:20:57,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:20:57,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:20:57,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:20:57,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:20:57,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:20:57,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:20:57,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:20:57,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:20:57,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:20:57,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:20:57,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:20:57,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:20:57,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:20:57,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:20:57,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:20:57,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:20:57,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:20:57,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:20:57,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:20:57,191 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:20:57,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:20:57,194 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:20:57,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:20:57,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:20:57,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:20:57,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:20:57,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:20:57,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:20:57,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:20:57,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:20:57,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:20:57,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:20:57,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:20:57,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:20:57,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:20:57,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:20:57,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:20:57,205 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 10:20:57,228 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:20:57,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:20:57,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:20:57,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:20:57,229 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:20:57,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:20:57,230 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:20:57,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:20:57,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:20:57,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:20:57,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:20:57,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:20:57,231 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 10:20:57,232 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 10:20:57,232 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:20:57,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:20:57,232 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:20:57,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:20:57,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:20:57,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:20:57,233 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:20:57,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:20:57,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:20:57,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:20:57,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:20:57,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:20:57,235 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 10:20:57,235 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 10:20:57,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:20:57,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 10:20:57,236 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_0e065808-968a-40c5-a218-96837eb7337e/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 -> 1154acb41caa49c0da18a0d5cc92ede9101ff854 [2019-11-20 10:20:57,518 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:20:57,537 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:20:57,541 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:20:57,543 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:20:57,544 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:20:57,545 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/../../sv-benchmarks/c/loops/nec40.c [2019-11-20 10:20:57,605 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/data/3b5f84305/2c978e750a46412392e627d925f14e85/FLAG41ff5a007 [2019-11-20 10:20:58,023 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:20:58,024 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/sv-benchmarks/c/loops/nec40.c [2019-11-20 10:20:58,029 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/data/3b5f84305/2c978e750a46412392e627d925f14e85/FLAG41ff5a007 [2019-11-20 10:20:58,418 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/data/3b5f84305/2c978e750a46412392e627d925f14e85 [2019-11-20 10:20:58,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:20:58,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:20:58,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:20:58,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:20:58,434 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:20:58,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:20:58" (1/1) ... [2019-11-20 10:20:58,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65ee8d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:58, skipping insertion in model container [2019-11-20 10:20:58,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:20:58" (1/1) ... [2019-11-20 10:20:58,457 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:20:58,472 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:20:58,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:20:58,657 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:20:58,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:20:58,699 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:20:58,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:58 WrapperNode [2019-11-20 10:20:58,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:20:58,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:20:58,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:20:58,701 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:20:58,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:58" (1/1) ... [2019-11-20 10:20:58,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:58" (1/1) ... [2019-11-20 10:20:58,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:20:58,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:20:58,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:20:58,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:20:58,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:58" (1/1) ... [2019-11-20 10:20:58,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:58" (1/1) ... [2019-11-20 10:20:58,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:58" (1/1) ... [2019-11-20 10:20:58,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:58" (1/1) ... [2019-11-20 10:20:58,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:58" (1/1) ... [2019-11-20 10:20:58,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:58" (1/1) ... [2019-11-20 10:20:58,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:58" (1/1) ... [2019-11-20 10:20:58,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:20:58,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:20:58,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:20:58,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:20:58,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/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 [2019-11-20 10:20:58,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2019-11-20 10:20:58,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:20:58,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:20:58,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2019-11-20 10:20:58,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:20:59,112 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:20:59,112 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 10:20:59,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:20:59 BoogieIcfgContainer [2019-11-20 10:20:59,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:20:59,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:20:59,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:20:59,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:20:59,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:20:58" (1/3) ... [2019-11-20 10:20:59,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375b9c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:20:59, skipping insertion in model container [2019-11-20 10:20:59,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:20:58" (2/3) ... [2019-11-20 10:20:59,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375b9c2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:20:59, skipping insertion in model container [2019-11-20 10:20:59,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:20:59" (3/3) ... [2019-11-20 10:20:59,119 INFO L109 eAbstractionObserver]: Analyzing ICFG nec40.c [2019-11-20 10:20:59,126 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:20:59,131 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 10:20:59,139 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 10:20:59,159 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:20:59,159 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:20:59,159 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:20:59,159 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:20:59,159 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:20:59,160 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:20:59,160 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:20:59,160 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:20:59,170 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-20 10:20:59,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 10:20:59,175 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:20:59,176 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:20:59,176 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:20:59,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:20:59,181 INFO L82 PathProgramCache]: Analyzing trace with hash 383725322, now seen corresponding path program 1 times [2019-11-20 10:20:59,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:20:59,190 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1433566800] [2019-11-20 10:20:59,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/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 [2019-11-20 10:20:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:20:59,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 10:20:59,280 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:20:59,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:20:59,290 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:20:59,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:20:59,294 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1433566800] [2019-11-20 10:20:59,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:20:59,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 10:20:59,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164824631] [2019-11-20 10:20:59,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 10:20:59,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:20:59,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 10:20:59,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 10:20:59,310 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 2 states. [2019-11-20 10:20:59,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:20:59,322 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2019-11-20 10:20:59,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 10:20:59,323 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-11-20 10:20:59,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:20:59,330 INFO L225 Difference]: With dead ends: 24 [2019-11-20 10:20:59,330 INFO L226 Difference]: Without dead ends: 10 [2019-11-20 10:20:59,333 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 10:20:59,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-20 10:20:59,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-20 10:20:59,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-20 10:20:59,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-11-20 10:20:59,362 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2019-11-20 10:20:59,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:20:59,362 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-11-20 10:20:59,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 10:20:59,362 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-11-20 10:20:59,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 10:20:59,363 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:20:59,363 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:20:59,564 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:20:59,565 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:20:59,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:20:59,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1213354159, now seen corresponding path program 1 times [2019-11-20 10:20:59,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:20:59,566 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1206175897] [2019-11-20 10:20:59,566 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/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 [2019-11-20 10:20:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:20:59,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-20 10:20:59,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:20:59,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:20:59,672 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:20:59,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:20:59,710 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1206175897] [2019-11-20 10:20:59,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:20:59,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-20 10:20:59,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653352168] [2019-11-20 10:20:59,713 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 10:20:59,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:20:59,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 10:20:59,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 10:20:59,714 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 4 states. [2019-11-20 10:20:59,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:20:59,758 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-11-20 10:20:59,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 10:20:59,759 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-20 10:20:59,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:20:59,759 INFO L225 Difference]: With dead ends: 18 [2019-11-20 10:20:59,760 INFO L226 Difference]: Without dead ends: 12 [2019-11-20 10:20:59,760 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-20 10:20:59,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-20 10:20:59,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-20 10:20:59,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-20 10:20:59,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-11-20 10:20:59,763 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2019-11-20 10:20:59,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:20:59,764 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-11-20 10:20:59,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 10:20:59,764 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-11-20 10:20:59,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 10:20:59,765 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:20:59,765 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:20:59,966 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:20:59,966 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:20:59,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:20:59,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1626878186, now seen corresponding path program 1 times [2019-11-20 10:20:59,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 10:20:59,970 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [191544720] [2019-11-20 10:20:59,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0e065808-968a-40c5-a218-96837eb7337e/bin/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:21:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:21:00,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 10:21:00,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:21:00,120 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 21 [2019-11-20 10:21:00,122 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-11-20 10:21:00,160 INFO L567 ElimStorePlain]: treesize reduction 14, result has 53.3 percent of original size [2019-11-20 10:21:00,179 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 13 [2019-11-20 10:21:00,179 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-20 10:21:00,197 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:21:00,198 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 10:21:00,199 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:23, output treesize:17 [2019-11-20 10:21:02,232 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 14 [2019-11-20 10:21:02,255 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2019-11-20 10:21:02,256 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 10:21:02,265 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:21:02,267 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 10:21:02,267 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:27, output treesize:9 [2019-11-20 10:21:02,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:21:02,286 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 10:21:02,313 INFO L377 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 12 treesize of output 6 [2019-11-20 10:21:02,316 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 10:21:02,318 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 10:21:02,318 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-20 10:21:02,319 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:1 [2019-11-20 10:21:02,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:21:02,363 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [191544720] [2019-11-20 10:21:02,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 10:21:02,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2019-11-20 10:21:02,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132003550] [2019-11-20 10:21:02,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 10:21:02,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 10:21:02,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 10:21:02,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-20 10:21:02,365 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 4 states. [2019-11-20 10:21:04,400 WARN L191 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 22 [2019-11-20 10:21:04,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:21:04,402 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-11-20 10:21:04,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 10:21:04,402 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-20 10:21:04,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:21:04,403 INFO L225 Difference]: With dead ends: 12 [2019-11-20 10:21:04,403 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 10:21:04,404 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-20 10:21:04,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 10:21:04,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 10:21:04,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 10:21:04,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 10:21:04,404 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-20 10:21:04,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:21:04,405 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:21:04,405 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 10:21:04,405 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 10:21:04,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 10:21:04,606 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 10:21:04,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 10:21:06,672 WARN L191 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-20 10:21:06,679 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 10:21:06,679 INFO L444 ceAbstractionStarter]: For program point L25(lines 25 26) no Hoare annotation was computed. [2019-11-20 10:21:06,680 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-20 10:21:06,680 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 10:21:06,680 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 10:21:06,680 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 10:21:06,680 INFO L447 ceAbstractionStarter]: At program point L28(lines 14 29) the Hoare annotation is: true [2019-11-20 10:21:06,680 INFO L444 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2019-11-20 10:21:06,681 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-20 10:21:06,681 INFO L447 ceAbstractionStarter]: At program point L24-1(lines 24 26) the Hoare annotation is: true [2019-11-20 10:21:06,681 INFO L444 ceAbstractionStarter]: For program point L18-1(lines 18 21) no Hoare annotation was computed. [2019-11-20 10:21:06,681 INFO L440 ceAbstractionStarter]: At program point L18-3(lines 18 21) the Hoare annotation is: (and (exists ((|~#y~0.base| (_ BitVec 32))) (and (not (= |~#y~0.base| |~#x~0.base|)) (= (select |#memory_int| |~#y~0.base|) ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32))))) (= ~i~0 (_ bv0 32)) (= ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)) (select |#memory_int| |~#x~0.base|))) [2019-11-20 10:21:06,681 INFO L444 ceAbstractionStarter]: For program point L18-4(lines 18 21) no Hoare annotation was computed. [2019-11-20 10:21:06,682 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-20 10:21:06,685 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.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:446) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:135) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:556) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:256) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:213) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) 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) [2019-11-20 10:21:06,689 INFO L168 Benchmark]: Toolchain (without parser) took 8266.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -93.7 MB). Peak memory consumption was 63.6 MB. Max. memory is 11.5 GB. [2019-11-20 10:21:06,689 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:21:06,690 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.28 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 945.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:21:06,691 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -201.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:21:06,691 INFO L168 Benchmark]: Boogie Preprocessor took 28.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:21:06,691 INFO L168 Benchmark]: RCFGBuilder took 291.45 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: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:21:06,692 INFO L168 Benchmark]: TraceAbstraction took 7573.07 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: 78.6 MB). Peak memory consumption was 78.6 MB. Max. memory is 11.5 GB. [2019-11-20 10:21:06,695 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.28 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 945.7 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 93.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -201.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 291.45 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: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7573.07 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: 78.6 MB). Peak memory consumption was 78.6 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 - AllSpecificationsHoldResult: All specifications hold 1 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:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...