./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/res2f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a399016b-86dd-43d4-a807-72e0d61bf382/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a399016b-86dd-43d4-a807-72e0d61bf382/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a399016b-86dd-43d4-a807-72e0d61bf382/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a399016b-86dd-43d4-a807-72e0d61bf382/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/res2f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a399016b-86dd-43d4-a807-72e0d61bf382/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a399016b-86dd-43d4-a807-72e0d61bf382/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 564056b784b90a3931792cc012447154b9653601 .................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 14:22:45,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:22:45,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:22:45,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:22:45,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:22:45,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:22:45,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:22:45,166 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:22:45,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:22:45,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:22:45,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:22:45,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:22:45,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:22:45,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:22:45,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:22:45,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:22:45,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:22:45,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:22:45,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:22:45,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:22:45,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:22:45,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:22:45,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:22:45,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:22:45,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:22:45,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:22:45,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:22:45,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:22:45,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:22:45,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:22:45,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:22:45,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:22:45,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:22:45,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:22:45,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:22:45,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:22:45,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:22:45,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:22:45,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:22:45,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:22:45,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:22:45,186 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a399016b-86dd-43d4-a807-72e0d61bf382/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 14:22:45,195 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:22:45,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:22:45,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:22:45,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:22:45,197 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:22:45,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:22:45,197 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:22:45,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:22:45,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:22:45,197 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:22:45,197 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:22:45,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:22:45,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:22:45,198 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:22:45,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:22:45,198 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:22:45,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:22:45,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:22:45,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:22:45,198 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:22:45,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:22:45,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:22:45,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:22:45,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:22:45,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:22:45,199 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:22:45,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:22:45,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:22:45,200 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:22:45,200 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_a399016b-86dd-43d4-a807-72e0d61bf382/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 -> 564056b784b90a3931792cc012447154b9653601 [2019-12-07 14:22:45,299 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:22:45,306 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:22:45,308 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:22:45,309 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:22:45,309 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:22:45,310 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a399016b-86dd-43d4-a807-72e0d61bf382/bin/uautomizer/../../sv-benchmarks/c/array-fpi/res2f.c [2019-12-07 14:22:45,346 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a399016b-86dd-43d4-a807-72e0d61bf382/bin/uautomizer/data/da020bcee/00f58406e8024d7abfb38c68a4222463/FLAG5ae87d4f1 [2019-12-07 14:22:45,761 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:22:45,761 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a399016b-86dd-43d4-a807-72e0d61bf382/sv-benchmarks/c/array-fpi/res2f.c [2019-12-07 14:22:45,766 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a399016b-86dd-43d4-a807-72e0d61bf382/bin/uautomizer/data/da020bcee/00f58406e8024d7abfb38c68a4222463/FLAG5ae87d4f1 [2019-12-07 14:22:45,775 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a399016b-86dd-43d4-a807-72e0d61bf382/bin/uautomizer/data/da020bcee/00f58406e8024d7abfb38c68a4222463 [2019-12-07 14:22:45,777 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:22:45,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:22:45,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:22:45,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:22:45,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:22:45,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:22:45" (1/1) ... [2019-12-07 14:22:45,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c0f4f58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:45, skipping insertion in model container [2019-12-07 14:22:45,784 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:22:45" (1/1) ... [2019-12-07 14:22:45,789 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:22:45,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:22:45,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:22:45,952 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:22:45,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:22:45,977 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:22:45,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:45 WrapperNode [2019-12-07 14:22:45,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:22:45,978 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:22:45,978 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:22:45,978 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:22:45,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:45" (1/1) ... [2019-12-07 14:22:45,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:45" (1/1) ... [2019-12-07 14:22:46,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:22:46,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:22:46,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:22:46,004 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:22:46,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:45" (1/1) ... [2019-12-07 14:22:46,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:45" (1/1) ... [2019-12-07 14:22:46,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:45" (1/1) ... [2019-12-07 14:22:46,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:45" (1/1) ... [2019-12-07 14:22:46,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:45" (1/1) ... [2019-12-07 14:22:46,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:45" (1/1) ... [2019-12-07 14:22:46,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:45" (1/1) ... [2019-12-07 14:22:46,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:22:46,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:22:46,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:22:46,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:22:46,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a399016b-86dd-43d4-a807-72e0d61bf382/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 [2019-12-07 14:22:46,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:22:46,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 14:22:46,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-07 14:22:46,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:22:46,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:22:46,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 14:22:46,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 14:22:46,223 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:22:46,223 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-07 14:22:46,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:22:46 BoogieIcfgContainer [2019-12-07 14:22:46,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:22:46,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:22:46,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:22:46,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:22:46,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:22:45" (1/3) ... [2019-12-07 14:22:46,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6e0c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:22:46, skipping insertion in model container [2019-12-07 14:22:46,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:45" (2/3) ... [2019-12-07 14:22:46,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f6e0c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:22:46, skipping insertion in model container [2019-12-07 14:22:46,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:22:46" (3/3) ... [2019-12-07 14:22:46,229 INFO L109 eAbstractionObserver]: Analyzing ICFG res2f.c [2019-12-07 14:22:46,235 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:22:46,239 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 14:22:46,246 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 14:22:46,261 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:22:46,261 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:22:46,261 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:22:46,261 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:22:46,261 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:22:46,262 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:22:46,262 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:22:46,262 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:22:46,271 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-12-07 14:22:46,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 14:22:46,275 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:22:46,276 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:22:46,276 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:22:46,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:46,281 INFO L82 PathProgramCache]: Analyzing trace with hash -81924726, now seen corresponding path program 1 times [2019-12-07 14:22:46,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:46,287 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412213313] [2019-12-07 14:22:46,287 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:46,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:22:46,380 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412213313] [2019-12-07 14:22:46,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:22:46,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:22:46,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566498612] [2019-12-07 14:22:46,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 14:22:46,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:22:46,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 14:22:46,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:22:46,394 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-12-07 14:22:46,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:22:46,406 INFO L93 Difference]: Finished difference Result 51 states and 74 transitions. [2019-12-07 14:22:46,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 14:22:46,407 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-12-07 14:22:46,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:22:46,413 INFO L225 Difference]: With dead ends: 51 [2019-12-07 14:22:46,413 INFO L226 Difference]: Without dead ends: 24 [2019-12-07 14:22:46,415 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 [2019-12-07 14:22:46,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-12-07 14:22:46,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-12-07 14:22:46,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-12-07 14:22:46,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2019-12-07 14:22:46,436 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 17 [2019-12-07 14:22:46,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:22:46,437 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2019-12-07 14:22:46,437 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 14:22:46,437 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2019-12-07 14:22:46,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 14:22:46,437 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:22:46,437 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:22:46,438 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:22:46,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:46,438 INFO L82 PathProgramCache]: Analyzing trace with hash -2118036586, now seen corresponding path program 1 times [2019-12-07 14:22:46,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:46,438 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743005182] [2019-12-07 14:22:46,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:46,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:22:46,508 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743005182] [2019-12-07 14:22:46,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:22:46,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 14:22:46,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647859643] [2019-12-07 14:22:46,510 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:22:46,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:22:46,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:22:46,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:22:46,511 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 4 states. [2019-12-07 14:22:46,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:22:46,574 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2019-12-07 14:22:46,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:22:46,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 14:22:46,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:22:46,575 INFO L225 Difference]: With dead ends: 39 [2019-12-07 14:22:46,575 INFO L226 Difference]: Without dead ends: 35 [2019-12-07 14:22:46,576 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:22:46,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-12-07 14:22:46,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-12-07 14:22:46,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-12-07 14:22:46,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2019-12-07 14:22:46,581 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 17 [2019-12-07 14:22:46,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:22:46,581 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2019-12-07 14:22:46,581 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:22:46,581 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2019-12-07 14:22:46,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 14:22:46,582 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:22:46,582 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:22:46,582 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:22:46,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:46,582 INFO L82 PathProgramCache]: Analyzing trace with hash 434573880, now seen corresponding path program 1 times [2019-12-07 14:22:46,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:46,582 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128541746] [2019-12-07 14:22:46,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:46,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-12-07 14:22:46,614 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128541746] [2019-12-07 14:22:46,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:22:46,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:22:46,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029139592] [2019-12-07 14:22:46,615 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:22:46,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:22:46,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:22:46,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:22:46,615 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. Second operand 3 states. [2019-12-07 14:22:46,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:22:46,649 INFO L93 Difference]: Finished difference Result 67 states and 85 transitions. [2019-12-07 14:22:46,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:22:46,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-12-07 14:22:46,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:22:46,650 INFO L225 Difference]: With dead ends: 67 [2019-12-07 14:22:46,650 INFO L226 Difference]: Without dead ends: 37 [2019-12-07 14:22:46,650 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 [2019-12-07 14:22:46,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-12-07 14:22:46,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2019-12-07 14:22:46,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-07 14:22:46,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2019-12-07 14:22:46,654 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 45 transitions. Word has length 19 [2019-12-07 14:22:46,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:22:46,655 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 45 transitions. [2019-12-07 14:22:46,655 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:22:46,655 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2019-12-07 14:22:46,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-12-07 14:22:46,655 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:22:46,655 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:22:46,655 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:22:46,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:46,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1237481242, now seen corresponding path program 1 times [2019-12-07 14:22:46,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:46,656 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061502682] [2019-12-07 14:22:46,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:22:46,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 14:22:46,692 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061502682] [2019-12-07 14:22:46,692 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:22:46,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 14:22:46,693 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365272868] [2019-12-07 14:22:46,693 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:22:46,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:22:46,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:22:46,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:22:46,693 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. Second operand 4 states. [2019-12-07 14:22:46,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:22:46,741 INFO L93 Difference]: Finished difference Result 59 states and 74 transitions. [2019-12-07 14:22:46,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:22:46,741 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-12-07 14:22:46,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:22:46,742 INFO L225 Difference]: With dead ends: 59 [2019-12-07 14:22:46,742 INFO L226 Difference]: Without dead ends: 36 [2019-12-07 14:22:46,742 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:22:46,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-07 14:22:46,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 30. [2019-12-07 14:22:46,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-12-07 14:22:46,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2019-12-07 14:22:46,746 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 21 [2019-12-07 14:22:46,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:22:46,746 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2019-12-07 14:22:46,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:22:46,746 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2019-12-07 14:22:46,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-07 14:22:46,747 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:22:46,747 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:22:46,747 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:22:46,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:46,747 INFO L82 PathProgramCache]: Analyzing trace with hash 590714914, now seen corresponding path program 1 times [2019-12-07 14:22:46,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:46,748 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68223683] [2019-12-07 14:22:46,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:22:46,839 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:22:46,839 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 14:22:46,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:22:46 BoogieIcfgContainer [2019-12-07 14:22:46,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:22:46,873 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:22:46,873 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:22:46,873 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:22:46,873 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:22:46" (3/4) ... [2019-12-07 14:22:46,875 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 14:22:46,912 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a399016b-86dd-43d4-a807-72e0d61bf382/bin/uautomizer/witness.graphml [2019-12-07 14:22:46,912 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:22:46,913 INFO L168 Benchmark]: Toolchain (without parser) took 1134.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 939.8 MB in the beginning and 976.9 MB in the end (delta: -37.1 MB). Peak memory consumption was 49.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:46,914 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:22:46,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -141.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:46,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.46 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:22:46,915 INFO L168 Benchmark]: Boogie Preprocessor took 18.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:46,915 INFO L168 Benchmark]: RCFGBuilder took 201.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:46,915 INFO L168 Benchmark]: TraceAbstraction took 648.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 976.9 MB in the end (delta: 77.3 MB). Peak memory consumption was 77.3 MB. Max. memory is 11.5 GB. [2019-12-07 14:22:46,915 INFO L168 Benchmark]: Witness Printer took 39.30 ms. Allocated memory is still 1.1 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:22:46,917 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 198.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 86.5 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -141.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.46 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 201.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 648.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 976.9 MB in the end (delta: 77.3 MB). Peak memory consumption was 77.3 MB. Max. memory is 11.5 GB. * Witness Printer took 39.30 ms. Allocated memory is still 1.1 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int N; VAL [N=0] [L18] N = __VERIFIER_nondet_int() [L19] COND FALSE !(N <= 0) [L22] int i; [L23] long long sum[1]; [L24] int *a = malloc(sizeof(int)*N); [L25] int *b = malloc(sizeof(int)*N); [L26] int *c = malloc(sizeof(int)*N); [L28] sum[0] = 1 [L29] i=0 VAL [N=1] [L29] COND TRUE i