./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test11_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bad38b43-cb2f-45e6-a707-f0fdcb19459d/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bad38b43-cb2f-45e6-a707-f0fdcb19459d/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bad38b43-cb2f-45e6-a707-f0fdcb19459d/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bad38b43-cb2f-45e6-a707-f0fdcb19459d/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test11_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bad38b43-cb2f-45e6-a707-f0fdcb19459d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bad38b43-cb2f-45e6-a707-f0fdcb19459d/bin-2019/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 ff22ef1f1636739616d2fc1a8366a8c51606f555 ....................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 07:25:34,177 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 07:25:34,179 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 07:25:34,187 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 07:25:34,187 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 07:25:34,188 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 07:25:34,189 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 07:25:34,190 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 07:25:34,191 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 07:25:34,192 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 07:25:34,192 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 07:25:34,193 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 07:25:34,193 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 07:25:34,194 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 07:25:34,195 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 07:25:34,195 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 07:25:34,196 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 07:25:34,197 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 07:25:34,199 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 07:25:34,200 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 07:25:34,201 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 07:25:34,202 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 07:25:34,203 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 07:25:34,203 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 07:25:34,203 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 07:25:34,204 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 07:25:34,205 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 07:25:34,205 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 07:25:34,206 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 07:25:34,207 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 07:25:34,207 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 07:25:34,208 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 07:25:34,208 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 07:25:34,208 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 07:25:34,208 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 07:25:34,209 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 07:25:34,209 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bad38b43-cb2f-45e6-a707-f0fdcb19459d/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 07:25:34,219 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 07:25:34,219 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 07:25:34,219 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 07:25:34,219 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 07:25:34,220 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 07:25:34,220 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 07:25:34,220 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 07:25:34,220 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 07:25:34,221 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 07:25:34,221 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 07:25:34,221 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 07:25:34,221 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 07:25:34,221 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 07:25:34,221 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 07:25:34,221 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 07:25:34,221 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 07:25:34,222 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 07:25:34,222 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 07:25:34,222 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 07:25:34,222 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 07:25:34,222 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 07:25:34,222 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 07:25:34,222 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 07:25:34,222 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:25:34,223 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 07:25:34,223 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 07:25:34,223 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 07:25:34,223 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 07:25:34,223 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 07:25:34,223 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 07:25:34,223 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_bad38b43-cb2f-45e6-a707-f0fdcb19459d/bin-2019/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 -> ff22ef1f1636739616d2fc1a8366a8c51606f555 [2018-11-23 07:25:34,245 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 07:25:34,254 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 07:25:34,255 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 07:25:34,256 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 07:25:34,257 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 07:25:34,257 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bad38b43-cb2f-45e6-a707-f0fdcb19459d/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/test11_true-unreach-call_true-termination.c [2018-11-23 07:25:34,295 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bad38b43-cb2f-45e6-a707-f0fdcb19459d/bin-2019/uautomizer/data/5bfafcfb7/d3cb4f13cc0c46a7b388ce7990355b11/FLAGe76999e81 [2018-11-23 07:25:34,623 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 07:25:34,624 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bad38b43-cb2f-45e6-a707-f0fdcb19459d/sv-benchmarks/c/ldv-regression/test11_true-unreach-call_true-termination.c [2018-11-23 07:25:34,627 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bad38b43-cb2f-45e6-a707-f0fdcb19459d/bin-2019/uautomizer/data/5bfafcfb7/d3cb4f13cc0c46a7b388ce7990355b11/FLAGe76999e81 [2018-11-23 07:25:35,058 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bad38b43-cb2f-45e6-a707-f0fdcb19459d/bin-2019/uautomizer/data/5bfafcfb7/d3cb4f13cc0c46a7b388ce7990355b11 [2018-11-23 07:25:35,061 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 07:25:35,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 07:25:35,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 07:25:35,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 07:25:35,065 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 07:25:35,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:25:35" (1/1) ... [2018-11-23 07:25:35,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d1173d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:35, skipping insertion in model container [2018-11-23 07:25:35,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:25:35" (1/1) ... [2018-11-23 07:25:35,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 07:25:35,084 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 07:25:35,189 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:25:35,196 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 07:25:35,206 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:25:35,215 INFO L195 MainTranslator]: Completed translation [2018-11-23 07:25:35,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:35 WrapperNode [2018-11-23 07:25:35,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 07:25:35,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 07:25:35,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 07:25:35,216 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 07:25:35,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:35" (1/1) ... [2018-11-23 07:25:35,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:35" (1/1) ... [2018-11-23 07:25:35,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 07:25:35,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 07:25:35,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 07:25:35,235 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 07:25:35,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:35" (1/1) ... [2018-11-23 07:25:35,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:35" (1/1) ... [2018-11-23 07:25:35,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:35" (1/1) ... [2018-11-23 07:25:35,241 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:35" (1/1) ... [2018-11-23 07:25:35,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:35" (1/1) ... [2018-11-23 07:25:35,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:35" (1/1) ... [2018-11-23 07:25:35,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:35" (1/1) ... [2018-11-23 07:25:35,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 07:25:35,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 07:25:35,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 07:25:35,248 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 07:25:35,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bad38b43-cb2f-45e6-a707-f0fdcb19459d/bin-2019/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 [2018-11-23 07:25:35,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 07:25:35,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 07:25:35,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 07:25:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 07:25:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2018-11-23 07:25:35,325 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2018-11-23 07:25:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 07:25:35,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 07:25:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 07:25:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 07:25:35,325 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 07:25:35,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 07:25:35,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 07:25:35,462 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 07:25:35,462 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 07:25:35,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:25:35 BoogieIcfgContainer [2018-11-23 07:25:35,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 07:25:35,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 07:25:35,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 07:25:35,466 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 07:25:35,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:25:35" (1/3) ... [2018-11-23 07:25:35,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed0fe7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:25:35, skipping insertion in model container [2018-11-23 07:25:35,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:25:35" (2/3) ... [2018-11-23 07:25:35,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ed0fe7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:25:35, skipping insertion in model container [2018-11-23 07:25:35,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:25:35" (3/3) ... [2018-11-23 07:25:35,469 INFO L112 eAbstractionObserver]: Analyzing ICFG test11_true-unreach-call_true-termination.c [2018-11-23 07:25:35,478 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 07:25:35,484 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 07:25:35,499 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 07:25:35,524 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 07:25:35,525 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 07:25:35,525 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 07:25:35,525 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 07:25:35,525 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 07:25:35,525 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 07:25:35,525 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 07:25:35,526 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 07:25:35,526 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 07:25:35,540 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-23 07:25:35,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 07:25:35,545 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:25:35,546 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:25:35,549 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:25:35,554 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:25:35,554 INFO L82 PathProgramCache]: Analyzing trace with hash -722462527, now seen corresponding path program 1 times [2018-11-23 07:25:35,555 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:25:35,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:25:35,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:25:35,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:25:35,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:25:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:25:35,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:25:35,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:25:35,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 07:25:35,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 07:25:35,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 07:25:35,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 07:25:35,727 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 4 states. [2018-11-23 07:25:35,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:25:35,775 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2018-11-23 07:25:35,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 07:25:35,777 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-11-23 07:25:35,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:25:35,785 INFO L225 Difference]: With dead ends: 31 [2018-11-23 07:25:35,785 INFO L226 Difference]: Without dead ends: 19 [2018-11-23 07:25:35,787 INFO L631 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 [2018-11-23 07:25:35,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-23 07:25:35,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-23 07:25:35,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-23 07:25:35,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-23 07:25:35,808 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 15 [2018-11-23 07:25:35,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:25:35,808 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-23 07:25:35,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 07:25:35,808 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-23 07:25:35,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 07:25:35,808 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:25:35,808 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:25:35,809 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:25:35,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:25:35,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1499811687, now seen corresponding path program 1 times [2018-11-23 07:25:35,809 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:25:35,809 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:25:35,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:25:35,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:25:35,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:25:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:25:35,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:25:35,913 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:25:35,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 07:25:35,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 07:25:35,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 07:25:35,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-23 07:25:35,915 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 6 states. [2018-11-23 07:25:35,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:25:35,948 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2018-11-23 07:25:35,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 07:25:35,948 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-11-23 07:25:35,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:25:35,949 INFO L225 Difference]: With dead ends: 21 [2018-11-23 07:25:35,949 INFO L226 Difference]: Without dead ends: 19 [2018-11-23 07:25:35,950 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-23 07:25:35,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-23 07:25:35,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-23 07:25:35,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-23 07:25:35,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-11-23 07:25:35,953 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 17 [2018-11-23 07:25:35,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:25:35,953 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2018-11-23 07:25:35,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 07:25:35,954 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-11-23 07:25:35,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-23 07:25:35,954 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:25:35,954 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:25:35,954 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:25:35,955 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:25:35,955 INFO L82 PathProgramCache]: Analyzing trace with hash -750476091, now seen corresponding path program 1 times [2018-11-23 07:25:35,955 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:25:35,955 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:25:35,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:25:35,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:25:35,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:25:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:25:36,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:25:36,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:25:36,011 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 07:25:36,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 07:25:36,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 07:25:36,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 07:25:36,012 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 4 states. [2018-11-23 07:25:36,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:25:36,023 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-11-23 07:25:36,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 07:25:36,024 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-11-23 07:25:36,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:25:36,024 INFO L225 Difference]: With dead ends: 19 [2018-11-23 07:25:36,024 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 07:25:36,024 INFO L631 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 [2018-11-23 07:25:36,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 07:25:36,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 07:25:36,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 07:25:36,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 07:25:36,025 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-11-23 07:25:36,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:25:36,025 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 07:25:36,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 07:25:36,025 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 07:25:36,025 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 07:25:36,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 07:25:36,046 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 07:25:36,047 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 07:25:36,047 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 07:25:36,047 INFO L448 ceAbstractionStarter]: For program point get_dummyFINAL(lines 7 10) no Hoare annotation was computed. [2018-11-23 07:25:36,047 INFO L448 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2018-11-23 07:25:36,047 INFO L451 ceAbstractionStarter]: At program point get_dummyENTRY(lines 7 10) the Hoare annotation is: true [2018-11-23 07:25:36,047 INFO L448 ceAbstractionStarter]: For program point get_dummyEXIT(lines 7 10) no Hoare annotation was computed. [2018-11-23 07:25:36,047 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 07:25:36,047 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 07:25:36,047 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 07:25:36,047 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 07:25:36,047 INFO L444 ceAbstractionStarter]: At program point L25(lines 12 32) the Hoare annotation is: false [2018-11-23 07:25:36,047 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 12 32) no Hoare annotation was computed. [2018-11-23 07:25:36,047 INFO L448 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-11-23 07:25:36,048 INFO L444 ceAbstractionStarter]: At program point L17(line 17) the Hoare annotation is: (and (= |main_~#c~0.offset| main_~pc~0.offset) (not (= 0 main_~pc~0.base)) (= |main_~#c~0.base| main_~pc~0.base)) [2018-11-23 07:25:36,048 INFO L448 ceAbstractionStarter]: For program point L19-2(line 19) no Hoare annotation was computed. [2018-11-23 07:25:36,048 INFO L448 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-11-23 07:25:36,048 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 12 32) no Hoare annotation was computed. [2018-11-23 07:25:36,048 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 12 32) the Hoare annotation is: true [2018-11-23 07:25:36,048 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2018-11-23 07:25:36,048 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2018-11-23 07:25:36,048 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 19) no Hoare annotation was computed. [2018-11-23 07:25:36,048 INFO L448 ceAbstractionStarter]: For program point L18-2(lines 18 21) no Hoare annotation was computed. [2018-11-23 07:25:36,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 07:25:36 BoogieIcfgContainer [2018-11-23 07:25:36,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 07:25:36,053 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 07:25:36,053 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 07:25:36,053 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 07:25:36,054 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:25:35" (3/4) ... [2018-11-23 07:25:36,056 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 07:25:36,060 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 07:25:36,060 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure get_dummy [2018-11-23 07:25:36,060 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 07:25:36,063 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-23 07:25:36,063 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-23 07:25:36,064 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 07:25:36,098 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bad38b43-cb2f-45e6-a707-f0fdcb19459d/bin-2019/uautomizer/witness.graphml [2018-11-23 07:25:36,098 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 07:25:36,098 INFO L168 Benchmark]: Toolchain (without parser) took 1037.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 958.2 MB in the beginning and 1.0 GB in the end (delta: -72.7 MB). Peak memory consumption was 37.9 MB. Max. memory is 11.5 GB. [2018-11-23 07:25:36,100 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:25:36,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.04 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 07:25:36,101 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.30 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 07:25:36,101 INFO L168 Benchmark]: Boogie Preprocessor took 13.41 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:25:36,101 INFO L168 Benchmark]: RCFGBuilder took 214.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -147.9 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2018-11-23 07:25:36,102 INFO L168 Benchmark]: TraceAbstraction took 589.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 11.5 GB. [2018-11-23 07:25:36,102 INFO L168 Benchmark]: Witness Printer took 44.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 07:25:36,104 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 153.04 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 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 18.30 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.41 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 214.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -147.9 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 589.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 11.5 GB. * Witness Printer took 44.68 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: 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 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 54 SDtfs, 23 SDslu, 106 SDs, 0 SdLazy, 20 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 17 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 1901 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...