./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/test30_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_a1fe8ee6-baa3-44f6-a27f-91eac5bde508/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a1fe8ee6-baa3-44f6-a27f-91eac5bde508/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a1fe8ee6-baa3-44f6-a27f-91eac5bde508/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a1fe8ee6-baa3-44f6-a27f-91eac5bde508/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test30_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a1fe8ee6-baa3-44f6-a27f-91eac5bde508/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a1fe8ee6-baa3-44f6-a27f-91eac5bde508/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 f3f14a8695828c11330d2be1588df37df1e498e3 .............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:28:09,848 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:28:09,850 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:28:09,859 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:28:09,859 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:28:09,860 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:28:09,861 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:28:09,862 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:28:09,863 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:28:09,864 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:28:09,864 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:28:09,865 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:28:09,866 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:28:09,866 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:28:09,867 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:28:09,868 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:28:09,868 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:28:09,870 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:28:09,871 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:28:09,872 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:28:09,873 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:28:09,874 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:28:09,876 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:28:09,876 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:28:09,876 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:28:09,877 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:28:09,878 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:28:09,879 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:28:09,879 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:28:09,880 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:28:09,880 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:28:09,881 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:28:09,881 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:28:09,881 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:28:09,882 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:28:09,882 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:28:09,882 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a1fe8ee6-baa3-44f6-a27f-91eac5bde508/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 19:28:09,896 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:28:09,896 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:28:09,897 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:28:09,897 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 19:28:09,897 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 19:28:09,899 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 19:28:09,899 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 19:28:09,899 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:28:09,899 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:28:09,899 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 19:28:09,900 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:28:09,900 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:28:09,900 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:28:09,900 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:28:09,900 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:28:09,900 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:28:09,900 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:28:09,900 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:28:09,901 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:28:09,901 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:28:09,901 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:28:09,901 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:28:09,901 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:28:09,901 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:28:09,901 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:28:09,902 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:28:09,902 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 19:28:09,902 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:28:09,902 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 19:28:09,902 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_a1fe8ee6-baa3-44f6-a27f-91eac5bde508/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 -> f3f14a8695828c11330d2be1588df37df1e498e3 [2018-10-26 19:28:09,945 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:28:09,959 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:28:09,964 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:28:09,966 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:28:09,967 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:28:09,967 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a1fe8ee6-baa3-44f6-a27f-91eac5bde508/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/test30_true-unreach-call_true-termination.c [2018-10-26 19:28:10,012 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a1fe8ee6-baa3-44f6-a27f-91eac5bde508/bin-2019/uautomizer/data/022d253b6/1c076aa34ce741f1b872f725566ce321/FLAG10a86a8f0 [2018-10-26 19:28:10,373 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:28:10,375 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a1fe8ee6-baa3-44f6-a27f-91eac5bde508/sv-benchmarks/c/ldv-regression/test30_true-unreach-call_true-termination.c [2018-10-26 19:28:10,380 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a1fe8ee6-baa3-44f6-a27f-91eac5bde508/bin-2019/uautomizer/data/022d253b6/1c076aa34ce741f1b872f725566ce321/FLAG10a86a8f0 [2018-10-26 19:28:10,391 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a1fe8ee6-baa3-44f6-a27f-91eac5bde508/bin-2019/uautomizer/data/022d253b6/1c076aa34ce741f1b872f725566ce321 [2018-10-26 19:28:10,394 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:28:10,395 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 19:28:10,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:28:10,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:28:10,399 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:28:10,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:28:10" (1/1) ... [2018-10-26 19:28:10,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e851303 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:28:10, skipping insertion in model container [2018-10-26 19:28:10,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:28:10" (1/1) ... [2018-10-26 19:28:10,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:28:10,425 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:28:10,532 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:28:10,541 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:28:10,553 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:28:10,566 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:28:10,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:28:10 WrapperNode [2018-10-26 19:28:10,566 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:28:10,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:28:10,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:28:10,567 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:28:10,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:28:10" (1/1) ... [2018-10-26 19:28:10,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:28:10" (1/1) ... [2018-10-26 19:28:10,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:28:10" (1/1) ... [2018-10-26 19:28:10,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:28:10" (1/1) ... [2018-10-26 19:28:10,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:28:10" (1/1) ... [2018-10-26 19:28:10,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:28:10" (1/1) ... [2018-10-26 19:28:10,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:28:10" (1/1) ... [2018-10-26 19:28:10,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:28:10,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:28:10,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:28:10,594 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:28:10,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:28:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1fe8ee6-baa3-44f6-a27f-91eac5bde508/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 [2018-10-26 19:28:10,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:28:10,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:28:10,689 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2018-10-26 19:28:10,689 INFO L138 BoogieDeclarations]: Found implementation of procedure assign2 [2018-10-26 19:28:10,689 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:28:10,689 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 19:28:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2018-10-26 19:28:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-26 19:28:10,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-26 19:28:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure assign2 [2018-10-26 19:28:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-10-26 19:28:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:28:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:28:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-26 19:28:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-10-26 19:28:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-10-26 19:28:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:28:10,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-26 19:28:11,118 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:28:11,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:28:11 BoogieIcfgContainer [2018-10-26 19:28:11,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:28:11,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:28:11,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:28:11,122 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:28:11,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:28:10" (1/3) ... [2018-10-26 19:28:11,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@185ec3d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:28:11, skipping insertion in model container [2018-10-26 19:28:11,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:28:10" (2/3) ... [2018-10-26 19:28:11,124 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@185ec3d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:28:11, skipping insertion in model container [2018-10-26 19:28:11,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:28:11" (3/3) ... [2018-10-26 19:28:11,126 INFO L112 eAbstractionObserver]: Analyzing ICFG test30_true-unreach-call_true-termination.c [2018-10-26 19:28:11,135 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:28:11,141 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:28:11,154 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:28:11,180 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 19:28:11,180 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:28:11,180 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:28:11,181 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:28:11,181 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:28:11,181 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:28:11,181 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:28:11,181 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:28:11,181 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:28:11,196 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-10-26 19:28:11,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-26 19:28:11,202 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:28:11,203 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] [2018-10-26 19:28:11,205 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:28:11,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:28:11,209 INFO L82 PathProgramCache]: Analyzing trace with hash 2014590461, now seen corresponding path program 1 times [2018-10-26 19:28:11,211 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:28:11,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:28:11,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:28:11,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:28:11,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:28:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:28:11,864 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2018-10-26 19:28:11,985 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 27 [2018-10-26 19:28:12,147 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2018-10-26 19:28:12,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:28:12,717 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:28:12,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2018-10-26 19:28:12,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-26 19:28:12,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-26 19:28:12,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2018-10-26 19:28:12,735 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 19 states. [2018-10-26 19:28:13,428 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2018-10-26 19:28:13,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:28:13,728 INFO L93 Difference]: Finished difference Result 40 states and 39 transitions. [2018-10-26 19:28:13,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-26 19:28:13,733 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 31 [2018-10-26 19:28:13,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:28:13,739 INFO L225 Difference]: With dead ends: 40 [2018-10-26 19:28:13,739 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 19:28:13,742 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=243, Invalid=1017, Unknown=0, NotChecked=0, Total=1260 [2018-10-26 19:28:13,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 19:28:13,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 19:28:13,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 19:28:13,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 19:28:13,766 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-10-26 19:28:13,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:28:13,766 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 19:28:13,766 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-10-26 19:28:13,766 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 19:28:13,766 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 19:28:13,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 19:28:14,149 WARN L179 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2018-10-26 19:28:14,160 INFO L425 ceAbstractionStarter]: For program point L3-2(line 3) no Hoare annotation was computed. [2018-10-26 19:28:14,160 INFO L425 ceAbstractionStarter]: For program point L3-3(line 3) no Hoare annotation was computed. [2018-10-26 19:28:14,161 INFO L425 ceAbstractionStarter]: For program point L3-4(line 3) no Hoare annotation was computed. [2018-10-26 19:28:14,161 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 5 7) no Hoare annotation was computed. [2018-10-26 19:28:14,161 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2018-10-26 19:28:14,161 INFO L425 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-10-26 19:28:14,161 INFO L425 ceAbstractionStarter]: For program point L5-1(lines 5 7) no Hoare annotation was computed. [2018-10-26 19:28:14,161 INFO L425 ceAbstractionStarter]: For program point L3(line 3) no Hoare annotation was computed. [2018-10-26 19:28:14,161 INFO L425 ceAbstractionStarter]: For program point L3-1(line 3) no Hoare annotation was computed. [2018-10-26 19:28:14,162 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 19:28:14,162 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 19:28:14,162 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse1 (+ |~#global~0.offset| 4)) (.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (select |#memory_$Pointer$.base| |~#global~0.base|))) (and (= 0 |~#global~0.offset|) (= |~#b~0.offset| (select .cse0 .cse1)) (= (select |#valid| |~#a~0.base|) 1) (= (select |#memory_int| |~#b~0.base|) (select |#memory_int| (select .cse2 .cse1))) (not (= |~#a~0.base| |~#b~0.base|)) (= |~#a~0.offset| (select .cse0 |~#global~0.offset|)) (= |~#a~0.base| (select .cse2 |~#global~0.offset|)))) [2018-10-26 19:28:14,162 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 19:28:14,162 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 19:28:14,163 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2018-10-26 19:28:14,163 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 19 33) the Hoare annotation is: (let ((.cse1 (+ |~#global~0.offset| 4)) (.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (select |#memory_$Pointer$.base| |~#global~0.base|))) (or (not (= (select .cse0 .cse1) |~#b~0.offset|)) (= |~#a~0.base| |~#b~0.base|) (not (= (select |old(#memory_int)| |~#b~0.base|) (select |old(#memory_int)| (select .cse2 .cse1)))) (not (= 0 |~#global~0.offset|)) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= |~#a~0.base| (select .cse2 |~#global~0.offset|))) (= |#memory_int| |old(#memory_int)|) (not (= (select |#valid| |~#a~0.base|) 1)))) [2018-10-26 19:28:14,163 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 19 33) no Hoare annotation was computed. [2018-10-26 19:28:14,163 INFO L421 ceAbstractionStarter]: At program point L26(lines 20 33) the Hoare annotation is: (let ((.cse1 (+ |~#global~0.offset| 4)) (.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (select |#memory_$Pointer$.base| |~#global~0.base|))) (or (not (= (select .cse0 .cse1) |~#b~0.offset|)) (= |~#a~0.base| |~#b~0.base|) (not (= (select |old(#memory_int)| |~#b~0.base|) (select |old(#memory_int)| (select .cse2 .cse1)))) (not (= 0 |~#global~0.offset|)) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= |~#a~0.base| (select .cse2 |~#global~0.offset|))) (not (= (select |#valid| |~#a~0.base|) 1)))) [2018-10-26 19:28:14,163 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-10-26 19:28:14,163 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 19 33) no Hoare annotation was computed. [2018-10-26 19:28:14,164 INFO L425 ceAbstractionStarter]: For program point L25-1(lines 25 27) no Hoare annotation was computed. [2018-10-26 19:28:14,164 INFO L421 ceAbstractionStarter]: At program point L23(line 23) the Hoare annotation is: (let ((.cse1 (+ |~#global~0.offset| 4)) (.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (select |#memory_$Pointer$.base| |~#global~0.base|))) (or (not (= (select .cse0 .cse1) |~#b~0.offset|)) (= |~#a~0.base| |~#b~0.base|) (not (= (select |old(#memory_int)| |~#b~0.base|) (select |old(#memory_int)| (select .cse2 .cse1)))) (not (= 0 |~#global~0.offset|)) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= |~#a~0.base| (select .cse2 |~#global~0.offset|))) (let ((.cse3 (select |#memory_$Pointer$.offset| main_~pd~0.base)) (.cse4 (select |#memory_$Pointer$.base| main_~pd~0.base))) (and (= |~#a~0.offset| (select .cse3 main_~pd~0.offset)) (= |~#b~0.offset| (select .cse3 4)) (= (select |#memory_int| |~#b~0.base|) (select |#memory_int| (select .cse4 4))) (= |~#a~0.base| (select .cse4 main_~pd~0.offset)) (= |#memory_int| |old(#memory_int)|) (= main_~pd~0.offset 0))) (not (= (select |#valid| |~#a~0.base|) 1)))) [2018-10-26 19:28:14,164 INFO L425 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-10-26 19:28:14,164 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-10-26 19:28:14,164 INFO L425 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-10-26 19:28:14,164 INFO L421 ceAbstractionStarter]: At program point L16-2(line 16) the Hoare annotation is: (let ((.cse1 (+ |~#global~0.offset| 4)) (.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (select |#memory_$Pointer$.base| |~#global~0.base|))) (or (not (= (select .cse0 .cse1) |~#b~0.offset|)) (= |~#a~0.base| |~#b~0.base|) (not (= (select |old(#memory_int)| |~#b~0.base|) (select |old(#memory_int)| (select .cse2 .cse1)))) (let ((.cse3 (= assign2_~pb.offset 4))) (and (= assign2_~pa.base |assign2_#in~pa.base|) (= assign2_~pa.offset |assign2_#in~pa.offset|) (or (<= |assign2_#in~pb.offset| 3) (and (= |assign2_#t~mem2.base| (select (select |#memory_$Pointer$.base| |assign2_#in~pb.base|) 4)) (= |assign2_#t~mem2.offset| (select (select |#memory_$Pointer$.offset| |assign2_#in~pb.base|) 4))) (<= 5 |assign2_#in~pb.offset|)) (or (and (= |assign2_#t~mem1.base| (select (select |#memory_$Pointer$.base| |assign2_#in~pa.base|) |assign2_#in~pa.offset|)) (= assign2_~pb.base |assign2_#in~pb.base|) (= |assign2_#t~mem1.offset| (select (select |#memory_$Pointer$.offset| |assign2_#in~pa.base|) |assign2_#in~pa.offset|))) (not .cse3)) (= |#memory_int| |old(#memory_int)|) (or (and (or (<= assign2_~pb.offset |assign2_#in~pb.offset|) (<= assign2_~pb.offset 4)) (or (< 4 assign2_~pb.offset) (<= |assign2_#in~pb.offset| assign2_~pb.offset))) .cse3))) (not (= 0 |~#global~0.offset|)) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= |~#a~0.base| (select .cse2 |~#global~0.offset|))) (not (= (select |#valid| |~#a~0.base|) 1)))) [2018-10-26 19:28:14,164 INFO L425 ceAbstractionStarter]: For program point L16-3(line 16) no Hoare annotation was computed. [2018-10-26 19:28:14,165 INFO L425 ceAbstractionStarter]: For program point assign2FINAL(lines 14 17) no Hoare annotation was computed. [2018-10-26 19:28:14,165 INFO L421 ceAbstractionStarter]: At program point assign2ENTRY(lines 14 17) the Hoare annotation is: (let ((.cse1 (+ |~#global~0.offset| 4)) (.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (select |#memory_$Pointer$.base| |~#global~0.base|))) (or (not (= (select .cse0 .cse1) |~#b~0.offset|)) (= |~#a~0.base| |~#b~0.base|) (not (= (select |old(#memory_int)| |~#b~0.base|) (select |old(#memory_int)| (select .cse2 .cse1)))) (not (= 0 |~#global~0.offset|)) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= |~#a~0.base| (select .cse2 |~#global~0.offset|))) (= |#memory_int| |old(#memory_int)|) (not (= (select |#valid| |~#a~0.base|) 1)))) [2018-10-26 19:28:14,165 INFO L425 ceAbstractionStarter]: For program point assign2EXIT(lines 14 17) no Hoare annotation was computed. [2018-10-26 19:28:14,165 INFO L425 ceAbstractionStarter]: For program point assignEXIT(lines 9 12) no Hoare annotation was computed. [2018-10-26 19:28:14,165 INFO L421 ceAbstractionStarter]: At program point assignENTRY(lines 9 12) the Hoare annotation is: (let ((.cse1 (+ |~#global~0.offset| 4)) (.cse0 (select |#memory_$Pointer$.offset| |~#global~0.base|)) (.cse2 (select |#memory_$Pointer$.base| |~#global~0.base|))) (or (not (= (select .cse0 .cse1) |~#b~0.offset|)) (= |~#a~0.base| |~#b~0.base|) (not (= (select |old(#memory_int)| |~#b~0.base|) (select |old(#memory_int)| (select .cse2 .cse1)))) (not (= 0 |~#global~0.offset|)) (not (= (select .cse0 |~#global~0.offset|) |~#a~0.offset|)) (not (= |~#a~0.base| (select .cse2 |~#global~0.offset|))) (= |#memory_int| |old(#memory_int)|) (not (= (select |#valid| |~#a~0.base|) 1)))) [2018-10-26 19:28:14,165 INFO L425 ceAbstractionStarter]: For program point assignFINAL(lines 9 12) no Hoare annotation was computed. [2018-10-26 19:28:14,165 INFO L425 ceAbstractionStarter]: For program point L11(line 11) no Hoare annotation was computed. [2018-10-26 19:28:14,165 INFO L425 ceAbstractionStarter]: For program point L11-1(line 11) no Hoare annotation was computed. [2018-10-26 19:28:14,165 INFO L425 ceAbstractionStarter]: For program point L11-2(line 11) no Hoare annotation was computed. [2018-10-26 19:28:14,172 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-10-26 19:28:14,173 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-10-26 19:28:14,174 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-10-26 19:28:14,174 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-10-26 19:28:14,175 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-10-26 19:28:14,175 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 19:28:14,176 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 19:28:14,176 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-10-26 19:28:14,176 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-10-26 19:28:14,177 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-10-26 19:28:14,180 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-10-26 19:28:14,181 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-10-26 19:28:14,181 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-10-26 19:28:14,181 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-10-26 19:28:14,181 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-10-26 19:28:14,182 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 19:28:14,182 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 19:28:14,182 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-10-26 19:28:14,182 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-10-26 19:28:14,183 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-10-26 19:28:14,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:28:14 BoogieIcfgContainer [2018-10-26 19:28:14,185 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:28:14,185 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:28:14,187 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:28:14,187 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:28:14,188 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:28:11" (3/4) ... [2018-10-26 19:28:14,192 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 19:28:14,201 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 19:28:14,202 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 19:28:14,202 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure assign2 [2018-10-26 19:28:14,202 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure assign [2018-10-26 19:28:14,206 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-10-26 19:28:14,206 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-10-26 19:28:14,206 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 19:28:14,239 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(#memory_$Pointer$[global][global + 4] == b) || a == b) || !(\old(unknown-#memory_int-unknown)[b] == \old(unknown-#memory_int-unknown)[#memory_$Pointer$[global][global + 4]])) || !(0 == global)) || !(#memory_$Pointer$[global][global] == a)) || !(a == #memory_$Pointer$[global][global])) || !(\valid[a] == 1) [2018-10-26 19:28:14,257 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a1fe8ee6-baa3-44f6-a27f-91eac5bde508/bin-2019/uautomizer/witness.graphml [2018-10-26 19:28:14,258 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:28:14,259 INFO L168 Benchmark]: Toolchain (without parser) took 3864.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.1 MB). Free memory was 959.8 MB in the beginning and 1.2 GB in the end (delta: -199.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:28:14,259 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:28:14,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 170.97 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:28:14,260 INFO L168 Benchmark]: Boogie Preprocessor took 26.91 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:28:14,261 INFO L168 Benchmark]: RCFGBuilder took 524.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -160.8 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2018-10-26 19:28:14,263 INFO L168 Benchmark]: TraceAbstraction took 3065.74 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -59.9 MB). Peak memory consumption was 328.5 MB. Max. memory is 11.5 GB. [2018-10-26 19:28:14,264 INFO L168 Benchmark]: Witness Printer took 72.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2018-10-26 19:28:14,267 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 170.97 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 949.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.91 ms. Allocated memory is still 1.0 GB. Free memory was 949.1 MB in the beginning and 946.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 524.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -160.8 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3065.74 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -59.9 MB). Peak memory consumption was 328.5 MB. Max. memory is 11.5 GB. * Witness Printer took 72.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_$Pointer$ * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 31]: 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: 20]: Loop Invariant [2018-10-26 19:28:14,273 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-10-26 19:28:14,274 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-10-26 19:28:14,274 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-10-26 19:28:14,274 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-10-26 19:28:14,275 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-10-26 19:28:14,275 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 19:28:14,275 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 19:28:14,275 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-10-26 19:28:14,275 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-10-26 19:28:14,276 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-10-26 19:28:14,276 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-10-26 19:28:14,276 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-10-26 19:28:14,277 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2018-10-26 19:28:14,277 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2018-10-26 19:28:14,277 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-10-26 19:28:14,287 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 19:28:14,287 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-26 19:28:14,287 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-10-26 19:28:14,287 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ [2018-10-26 19:28:14,288 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_$Pointer$ Derived loop invariant: (((((!(#memory_$Pointer$[global][global + 4] == b) || a == b) || !(\old(unknown-#memory_int-unknown)[b] == \old(unknown-#memory_int-unknown)[#memory_$Pointer$[global][global + 4]])) || !(0 == global)) || !(#memory_$Pointer$[global][global] == a)) || !(a == #memory_$Pointer$[global][global])) || !(\valid[a] == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 36 locations, 1 error locations. SAFE Result, 2.9s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 87 SDslu, 112 SDs, 0 SdLazy, 240 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 499 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 243 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 21870 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...