./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/test19_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_06828371-4405-4679-aeca-e91540056bc7/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_06828371-4405-4679-aeca-e91540056bc7/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_06828371-4405-4679-aeca-e91540056bc7/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_06828371-4405-4679-aeca-e91540056bc7/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test19_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_06828371-4405-4679-aeca-e91540056bc7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_06828371-4405-4679-aeca-e91540056bc7/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 0c0446e0ab344184143837ac7165b5e517628f70 .................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 09:36:56,311 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 09:36:56,312 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 09:36:56,318 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 09:36:56,318 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 09:36:56,319 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 09:36:56,320 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 09:36:56,320 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 09:36:56,321 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 09:36:56,322 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 09:36:56,322 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 09:36:56,323 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 09:36:56,323 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 09:36:56,324 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 09:36:56,325 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 09:36:56,325 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 09:36:56,326 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 09:36:56,327 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 09:36:56,328 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 09:36:56,329 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 09:36:56,329 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 09:36:56,330 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 09:36:56,332 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 09:36:56,332 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 09:36:56,332 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 09:36:56,333 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 09:36:56,334 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 09:36:56,334 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 09:36:56,335 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 09:36:56,336 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 09:36:56,336 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 09:36:56,336 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 09:36:56,336 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 09:36:56,336 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 09:36:56,337 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 09:36:56,337 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 09:36:56,337 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_06828371-4405-4679-aeca-e91540056bc7/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 09:36:56,344 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 09:36:56,344 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 09:36:56,345 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 09:36:56,345 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 09:36:56,346 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 09:36:56,346 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 09:36:56,346 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 09:36:56,346 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 09:36:56,346 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 09:36:56,346 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 09:36:56,347 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 09:36:56,347 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 09:36:56,347 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 09:36:56,347 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 09:36:56,347 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 09:36:56,347 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 09:36:56,347 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 09:36:56,348 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 09:36:56,348 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 09:36:56,348 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 09:36:56,348 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 09:36:56,348 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 09:36:56,348 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 09:36:56,348 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 09:36:56,349 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 09:36:56,349 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 09:36:56,349 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 09:36:56,349 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 09:36:56,349 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 09:36:56,349 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_06828371-4405-4679-aeca-e91540056bc7/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 -> 0c0446e0ab344184143837ac7165b5e517628f70 [2018-11-10 09:36:56,375 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 09:36:56,383 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 09:36:56,385 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 09:36:56,386 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 09:36:56,387 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 09:36:56,387 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_06828371-4405-4679-aeca-e91540056bc7/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/test19_true-unreach-call_true-termination.c [2018-11-10 09:36:56,431 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_06828371-4405-4679-aeca-e91540056bc7/bin-2019/uautomizer/data/531b8d5cf/1f0d395bed1e4903a55e726cdaa13059/FLAG998431b89 [2018-11-10 09:36:56,748 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 09:36:56,748 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_06828371-4405-4679-aeca-e91540056bc7/sv-benchmarks/c/ldv-regression/test19_true-unreach-call_true-termination.c [2018-11-10 09:36:56,752 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_06828371-4405-4679-aeca-e91540056bc7/bin-2019/uautomizer/data/531b8d5cf/1f0d395bed1e4903a55e726cdaa13059/FLAG998431b89 [2018-11-10 09:36:56,764 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_06828371-4405-4679-aeca-e91540056bc7/bin-2019/uautomizer/data/531b8d5cf/1f0d395bed1e4903a55e726cdaa13059 [2018-11-10 09:36:56,767 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 09:36:56,768 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 09:36:56,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 09:36:56,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 09:36:56,772 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 09:36:56,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:36:56" (1/1) ... [2018-11-10 09:36:56,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10835ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:36:56, skipping insertion in model container [2018-11-10 09:36:56,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 09:36:56" (1/1) ... [2018-11-10 09:36:56,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 09:36:56,800 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 09:36:56,902 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:36:56,908 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 09:36:56,917 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 09:36:56,926 INFO L193 MainTranslator]: Completed translation [2018-11-10 09:36:56,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:36:56 WrapperNode [2018-11-10 09:36:56,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 09:36:56,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 09:36:56,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 09:36:56,927 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 09:36:56,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:36:56" (1/1) ... [2018-11-10 09:36:56,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:36:56" (1/1) ... [2018-11-10 09:36:56,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:36:56" (1/1) ... [2018-11-10 09:36:56,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:36:56" (1/1) ... [2018-11-10 09:36:56,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:36:56" (1/1) ... [2018-11-10 09:36:56,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:36:56" (1/1) ... [2018-11-10 09:36:56,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:36:56" (1/1) ... [2018-11-10 09:36:56,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 09:36:56,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 09:36:56,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 09:36:56,948 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 09:36:56,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:36:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_06828371-4405-4679-aeca-e91540056bc7/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 [2018-11-10 09:36:57,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 09:36:57,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 09:36:57,021 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2018-11-10 09:36:57,021 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 09:36:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 09:36:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 09:36:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2018-11-10 09:36:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-10 09:36:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 09:36:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 09:36:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 09:36:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 09:36:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 09:36:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-10 09:36:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 09:36:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 09:36:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 09:36:57,172 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 09:36:57,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:36:57 BoogieIcfgContainer [2018-11-10 09:36:57,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 09:36:57,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 09:36:57,174 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 09:36:57,176 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 09:36:57,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 09:36:56" (1/3) ... [2018-11-10 09:36:57,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44eb3968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:36:57, skipping insertion in model container [2018-11-10 09:36:57,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 09:36:56" (2/3) ... [2018-11-10 09:36:57,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44eb3968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 09:36:57, skipping insertion in model container [2018-11-10 09:36:57,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:36:57" (3/3) ... [2018-11-10 09:36:57,179 INFO L112 eAbstractionObserver]: Analyzing ICFG test19_true-unreach-call_true-termination.c [2018-11-10 09:36:57,185 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 09:36:57,189 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 09:36:57,200 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 09:36:57,220 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 09:36:57,220 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 09:36:57,220 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 09:36:57,221 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 09:36:57,221 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 09:36:57,221 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 09:36:57,221 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 09:36:57,221 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 09:36:57,221 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 09:36:57,236 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2018-11-10 09:36:57,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-10 09:36:57,242 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 09:36:57,242 INFO L375 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, 1, 1, 1] [2018-11-10 09:36:57,244 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 09:36:57,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 09:36:57,249 INFO L82 PathProgramCache]: Analyzing trace with hash -1181135159, now seen corresponding path program 1 times [2018-11-10 09:36:57,251 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 09:36:57,251 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 09:36:57,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:36:57,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 09:36:57,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 09:36:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 09:36:57,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 09:36:57,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 09:36:57,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-11-10 09:36:57,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-10 09:36:57,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-10 09:36:57,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2018-11-10 09:36:57,764 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 18 states. [2018-11-10 09:36:58,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 09:36:58,395 INFO L93 Difference]: Finished difference Result 57 states and 56 transitions. [2018-11-10 09:36:58,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-10 09:36:58,396 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 32 [2018-11-10 09:36:58,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 09:36:58,400 INFO L225 Difference]: With dead ends: 57 [2018-11-10 09:36:58,400 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 09:36:58,403 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=183, Invalid=939, Unknown=0, NotChecked=0, Total=1122 [2018-11-10 09:36:58,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 09:36:58,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 09:36:58,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 09:36:58,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 09:36:58,418 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-11-10 09:36:58,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 09:36:58,419 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 09:36:58,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-10 09:36:58,419 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 09:36:58,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 09:36:58,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 09:36:58,444 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 09:36:58,445 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 09:36:58,445 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 09:36:58,445 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 09:36:58,445 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 09:36:58,445 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 09:36:58,445 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 09:36:58,445 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 24) no Hoare annotation was computed. [2018-11-10 09:36:58,445 INFO L421 ceAbstractionStarter]: At program point L17(lines 11 24) the Hoare annotation is: false [2018-11-10 09:36:58,446 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-11-10 09:36:58,446 INFO L425 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-11-10 09:36:58,446 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 24) no Hoare annotation was computed. [2018-11-10 09:36:58,446 INFO L425 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2018-11-10 09:36:58,446 INFO L425 ceAbstractionStarter]: For program point L13-2(line 13) no Hoare annotation was computed. [2018-11-10 09:36:58,446 INFO L425 ceAbstractionStarter]: For program point L13-3(line 13) no Hoare annotation was computed. [2018-11-10 09:36:58,446 INFO L425 ceAbstractionStarter]: For program point L13-4(line 13) no Hoare annotation was computed. [2018-11-10 09:36:58,446 INFO L425 ceAbstractionStarter]: For program point L13-5(line 13) no Hoare annotation was computed. [2018-11-10 09:36:58,446 INFO L425 ceAbstractionStarter]: For program point L13-6(line 13) no Hoare annotation was computed. [2018-11-10 09:36:58,447 INFO L425 ceAbstractionStarter]: For program point L13-7(line 13) no Hoare annotation was computed. [2018-11-10 09:36:58,447 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 24) the Hoare annotation is: true [2018-11-10 09:36:58,447 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-11-10 09:36:58,447 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 18) no Hoare annotation was computed. [2018-11-10 09:36:58,447 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-11-10 09:36:58,447 INFO L425 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-11-10 09:36:58,447 INFO L425 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2018-11-10 09:36:58,447 INFO L425 ceAbstractionStarter]: For program point L14-2(line 14) no Hoare annotation was computed. [2018-11-10 09:36:58,447 INFO L425 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2018-11-10 09:36:58,448 INFO L425 ceAbstractionStarter]: For program point L14-3(line 14) no Hoare annotation was computed. [2018-11-10 09:36:58,448 INFO L425 ceAbstractionStarter]: For program point L12-2(line 12) no Hoare annotation was computed. [2018-11-10 09:36:58,448 INFO L421 ceAbstractionStarter]: At program point L14-4(line 14) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#pa~1.base|) |main_~#pa~1.offset|))) (and (= |main_~#a~0.base| .cse0) (= |main_~#b~0.base| (select (select |#memory_$Pointer$.base| |main_~#pb~1.base|) |main_~#pb~1.offset|)) (= |main_~#a~0.offset| (select (select |#memory_$Pointer$.offset| |main_~#pa~1.base|) |main_~#pa~1.offset|)) (= (select |#valid| |main_~#a~0.base|) 1) (= |main_~#b~0.offset| (select (select |#memory_$Pointer$.offset| |main_~#pb~1.base|) |main_~#pb~1.offset|)) (= (select |#valid| |main_~#pa~1.base|) 1) (not (= .cse0 |main_~#b~0.base|)) (not (= |main_~#pa~1.base| |main_~#pb~1.base|)))) [2018-11-10 09:36:58,448 INFO L425 ceAbstractionStarter]: For program point L12-3(line 12) no Hoare annotation was computed. [2018-11-10 09:36:58,448 INFO L425 ceAbstractionStarter]: For program point L14-5(line 14) no Hoare annotation was computed. [2018-11-10 09:36:58,448 INFO L425 ceAbstractionStarter]: For program point L12-4(line 12) no Hoare annotation was computed. [2018-11-10 09:36:58,448 INFO L425 ceAbstractionStarter]: For program point L14-6(line 14) no Hoare annotation was computed. [2018-11-10 09:36:58,449 INFO L425 ceAbstractionStarter]: For program point L14-7(line 14) no Hoare annotation was computed. [2018-11-10 09:36:58,449 INFO L425 ceAbstractionStarter]: For program point L12-5(line 12) no Hoare annotation was computed. [2018-11-10 09:36:58,449 INFO L425 ceAbstractionStarter]: For program point L14-8(line 14) no Hoare annotation was computed. [2018-11-10 09:36:58,449 INFO L425 ceAbstractionStarter]: For program point L12-6(line 12) no Hoare annotation was computed. [2018-11-10 09:36:58,449 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2018-11-10 09:36:58,449 INFO L425 ceAbstractionStarter]: For program point L14-9(line 14) no Hoare annotation was computed. [2018-11-10 09:36:58,449 INFO L425 ceAbstractionStarter]: For program point L14-10(line 14) no Hoare annotation was computed. [2018-11-10 09:36:58,449 INFO L425 ceAbstractionStarter]: For program point L14-11(line 14) no Hoare annotation was computed. [2018-11-10 09:36:58,449 INFO L425 ceAbstractionStarter]: For program point L14-12(line 14) no Hoare annotation was computed. [2018-11-10 09:36:58,450 INFO L425 ceAbstractionStarter]: For program point assignEXIT(lines 5 9) no Hoare annotation was computed. [2018-11-10 09:36:58,450 INFO L428 ceAbstractionStarter]: At program point assignENTRY(lines 5 9) the Hoare annotation is: true [2018-11-10 09:36:58,450 INFO L425 ceAbstractionStarter]: For program point assignFINAL(lines 5 9) no Hoare annotation was computed. [2018-11-10 09:36:58,450 INFO L425 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-11-10 09:36:58,450 INFO L425 ceAbstractionStarter]: For program point L7(line 7) no Hoare annotation was computed. [2018-11-10 09:36:58,450 INFO L425 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-11-10 09:36:58,450 INFO L425 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-11-10 09:36:58,450 INFO L425 ceAbstractionStarter]: For program point L7-1(line 7) no Hoare annotation was computed. [2018-11-10 09:36:58,451 INFO L425 ceAbstractionStarter]: For program point L8-2(line 8) no Hoare annotation was computed. [2018-11-10 09:36:58,451 INFO L425 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2018-11-10 09:36:58,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 09:36:58 BoogieIcfgContainer [2018-11-10 09:36:58,456 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 09:36:58,457 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 09:36:58,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 09:36:58,457 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 09:36:58,457 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 09:36:57" (3/4) ... [2018-11-10 09:36:58,461 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 09:36:58,465 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 09:36:58,466 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 09:36:58,466 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure assign [2018-11-10 09:36:58,469 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-10 09:36:58,470 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-10 09:36:58,470 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 09:36:58,498 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_06828371-4405-4679-aeca-e91540056bc7/bin-2019/uautomizer/witness.graphml [2018-11-10 09:36:58,498 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 09:36:58,499 INFO L168 Benchmark]: Toolchain (without parser) took 1731.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 959.2 MB in the beginning and 892.5 MB in the end (delta: 66.7 MB). Peak memory consumption was 193.6 MB. Max. memory is 11.5 GB. [2018-11-10 09:36:58,500 INFO L168 Benchmark]: CDTParser took 0.10 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. [2018-11-10 09:36:58,500 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.25 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 09:36:58,500 INFO L168 Benchmark]: Boogie Preprocessor took 20.23 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 09:36:58,501 INFO L168 Benchmark]: RCFGBuilder took 225.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2018-11-10 09:36:58,501 INFO L168 Benchmark]: TraceAbstraction took 1282.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 897.9 MB in the end (delta: 211.5 MB). Peak memory consumption was 211.5 MB. Max. memory is 11.5 GB. [2018-11-10 09:36:58,502 INFO L168 Benchmark]: Witness Printer took 41.92 ms. Allocated memory is still 1.2 GB. Free memory was 897.9 MB in the beginning and 892.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 09:36:58,504 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 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 158.25 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.23 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 225.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1282.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 897.9 MB in the end (delta: 211.5 MB). Peak memory consumption was 211.5 MB. Max. memory is 11.5 GB. * Witness Printer took 41.92 ms. Allocated memory is still 1.2 GB. Free memory was 897.9 MB in the beginning and 892.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: 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: 11]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 33 SDslu, 246 SDs, 0 SdLazy, 224 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 57 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 13826 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...