./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/nec40_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1a331be3-ccb4-4f93-af5a-6cee59edecbe/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1a331be3-ccb4-4f93-af5a-6cee59edecbe/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1a331be3-ccb4-4f93-af5a-6cee59edecbe/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1a331be3-ccb4-4f93-af5a-6cee59edecbe/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/nec40_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1a331be3-ccb4-4f93-af5a-6cee59edecbe/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1a331be3-ccb4-4f93-af5a-6cee59edecbe/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 fffaea79f968c931abbf923bf574b15b9c605c6a ........................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 13:13:46,398 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:13:46,399 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:13:46,407 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:13:46,407 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:13:46,407 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:13:46,408 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:13:46,410 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:13:46,411 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:13:46,411 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:13:46,412 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:13:46,412 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:13:46,413 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:13:46,414 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:13:46,414 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:13:46,415 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:13:46,416 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:13:46,417 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:13:46,419 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:13:46,420 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:13:46,421 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:13:46,422 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:13:46,423 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:13:46,423 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:13:46,424 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:13:46,425 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:13:46,425 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:13:46,426 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:13:46,427 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:13:46,427 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:13:46,427 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:13:46,429 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:13:46,429 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:13:46,429 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:13:46,430 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:13:46,430 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:13:46,430 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1a331be3-ccb4-4f93-af5a-6cee59edecbe/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 13:13:46,440 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:13:46,440 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:13:46,441 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:13:46,441 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:13:46,441 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 13:13:46,441 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 13:13:46,441 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 13:13:46,442 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:13:46,442 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 13:13:46,442 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:13:46,442 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 13:13:46,442 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:13:46,442 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:13:46,442 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:13:46,442 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:13:46,443 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 13:13:46,443 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:13:46,443 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:13:46,443 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:13:46,443 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:13:46,443 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:13:46,443 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:13:46,444 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:13:46,444 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:13:46,445 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:13:46,445 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:13:46,445 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:13:46,446 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 13:13:46,446 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:13:46,446 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 13:13:46,446 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_1a331be3-ccb4-4f93-af5a-6cee59edecbe/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 -> fffaea79f968c931abbf923bf574b15b9c605c6a [2018-11-23 13:13:46,468 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:13:46,476 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:13:46,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:13:46,479 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:13:46,479 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:13:46,480 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1a331be3-ccb4-4f93-af5a-6cee59edecbe/bin-2019/uautomizer/../../sv-benchmarks/c/loops/nec40_true-unreach-call_true-termination.i [2018-11-23 13:13:46,515 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1a331be3-ccb4-4f93-af5a-6cee59edecbe/bin-2019/uautomizer/data/9092fcde0/11e3912751964041a9579dd3525b5161/FLAGcab6948b9 [2018-11-23 13:13:46,916 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:13:46,917 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1a331be3-ccb4-4f93-af5a-6cee59edecbe/sv-benchmarks/c/loops/nec40_true-unreach-call_true-termination.i [2018-11-23 13:13:46,921 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1a331be3-ccb4-4f93-af5a-6cee59edecbe/bin-2019/uautomizer/data/9092fcde0/11e3912751964041a9579dd3525b5161/FLAGcab6948b9 [2018-11-23 13:13:46,932 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1a331be3-ccb4-4f93-af5a-6cee59edecbe/bin-2019/uautomizer/data/9092fcde0/11e3912751964041a9579dd3525b5161 [2018-11-23 13:13:46,934 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:13:46,935 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:13:46,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:13:46,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:13:46,937 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:13:46,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:13:46" (1/1) ... [2018-11-23 13:13:46,940 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd21f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:46, skipping insertion in model container [2018-11-23 13:13:46,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:13:46" (1/1) ... [2018-11-23 13:13:46,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:13:46,958 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:13:47,068 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:13:47,085 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:13:47,097 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:13:47,127 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:13:47,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:47 WrapperNode [2018-11-23 13:13:47,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:13:47,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:13:47,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:13:47,128 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:13:47,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:47" (1/1) ... [2018-11-23 13:13:47,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:47" (1/1) ... [2018-11-23 13:13:47,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:13:47,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:13:47,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:13:47,153 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:13:47,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:47" (1/1) ... [2018-11-23 13:13:47,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:47" (1/1) ... [2018-11-23 13:13:47,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:47" (1/1) ... [2018-11-23 13:13:47,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:47" (1/1) ... [2018-11-23 13:13:47,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:47" (1/1) ... [2018-11-23 13:13:47,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:47" (1/1) ... [2018-11-23 13:13:47,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:47" (1/1) ... [2018-11-23 13:13:47,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:13:47,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:13:47,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:13:47,229 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:13:47,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a331be3-ccb4-4f93-af5a-6cee59edecbe/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:13:47,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 13:13:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:13:47,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:13:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 13:13:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:13:47,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:13:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 13:13:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:13:47,279 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:13:47,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 13:13:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 13:13:47,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 13:13:47,537 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:13:47,538 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 13:13:47,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:13:47 BoogieIcfgContainer [2018-11-23 13:13:47,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:13:47,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:13:47,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:13:47,541 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:13:47,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:13:46" (1/3) ... [2018-11-23 13:13:47,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e0ca272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:13:47, skipping insertion in model container [2018-11-23 13:13:47,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:47" (2/3) ... [2018-11-23 13:13:47,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e0ca272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:13:47, skipping insertion in model container [2018-11-23 13:13:47,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:13:47" (3/3) ... [2018-11-23 13:13:47,545 INFO L112 eAbstractionObserver]: Analyzing ICFG nec40_true-unreach-call_true-termination.i [2018-11-23 13:13:47,554 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:13:47,560 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 13:13:47,573 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 13:13:47,593 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 13:13:47,594 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:13:47,594 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 13:13:47,594 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:13:47,594 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:13:47,594 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:13:47,594 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:13:47,595 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:13:47,595 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:13:47,607 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-23 13:13:47,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 13:13:47,611 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:13:47,612 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:13:47,614 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:13:47,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:13:47,619 INFO L82 PathProgramCache]: Analyzing trace with hash -91485938, now seen corresponding path program 1 times [2018-11-23 13:13:47,620 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:13:47,620 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:13:47,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:13:47,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:13:47,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:13:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:13:47,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:13:47,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:13:47,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 13:13:47,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 13:13:47,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 13:13:47,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 13:13:47,795 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-11-23 13:13:47,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:13:47,808 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2018-11-23 13:13:47,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 13:13:47,809 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-23 13:13:47,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:13:47,814 INFO L225 Difference]: With dead ends: 38 [2018-11-23 13:13:47,814 INFO L226 Difference]: Without dead ends: 16 [2018-11-23 13:13:47,816 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 13:13:47,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-23 13:13:47,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-23 13:13:47,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-23 13:13:47,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-23 13:13:47,838 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 14 [2018-11-23 13:13:47,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:13:47,838 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-11-23 13:13:47,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 13:13:47,838 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-23 13:13:47,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 13:13:47,839 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:13:47,839 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:13:47,839 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:13:47,839 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:13:47,840 INFO L82 PathProgramCache]: Analyzing trace with hash 883179888, now seen corresponding path program 1 times [2018-11-23 13:13:47,840 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:13:47,840 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:13:47,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:13:47,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:13:47,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:13:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:13:47,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:13:47,916 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:13:47,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 13:13:47,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:13:47,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:13:47,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:13:47,918 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 3 states. [2018-11-23 13:13:47,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:13:47,958 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2018-11-23 13:13:47,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:13:47,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-23 13:13:47,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:13:47,959 INFO L225 Difference]: With dead ends: 26 [2018-11-23 13:13:47,959 INFO L226 Difference]: Without dead ends: 18 [2018-11-23 13:13:47,959 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:13:47,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-23 13:13:47,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-23 13:13:47,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-23 13:13:47,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-11-23 13:13:47,962 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2018-11-23 13:13:47,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:13:47,962 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-11-23 13:13:47,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:13:47,963 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-11-23 13:13:47,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-23 13:13:47,963 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:13:47,963 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:13:47,964 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:13:47,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:13:47,964 INFO L82 PathProgramCache]: Analyzing trace with hash 975532875, now seen corresponding path program 1 times [2018-11-23 13:13:47,964 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:13:47,964 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:13:47,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:13:47,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:13:47,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:13:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:13:48,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:13:48,204 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:13:48,204 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1a331be3-ccb4-4f93-af5a-6cee59edecbe/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:13:48,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:13:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:13:48,278 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:13:48,314 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-23 13:13:48,316 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-11-23 13:13:48,317 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 13:13:48,320 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:13:48,324 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 13:13:48,325 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:21, output treesize:3 [2018-11-23 13:13:48,330 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:13:48,345 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 13:13:48,346 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2018-11-23 13:13:48,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 13:13:48,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 13:13:48,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-23 13:13:48,346 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 7 states. [2018-11-23 13:13:48,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:13:48,388 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-11-23 13:13:48,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 13:13:48,388 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-11-23 13:13:48,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:13:48,388 INFO L225 Difference]: With dead ends: 18 [2018-11-23 13:13:48,388 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 13:13:48,389 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-23 13:13:48,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 13:13:48,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 13:13:48,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 13:13:48,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 13:13:48,389 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2018-11-23 13:13:48,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:13:48,390 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:13:48,390 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 13:13:48,390 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:13:48,390 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:13:48,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 13:13:48,486 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:13:48,486 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 13:13:48,486 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:13:48,486 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:13:48,486 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~i~0 0) (<= 0 |~#x~0.offset|) (<= |~#x~0.offset| 0) (= 0 (select (select |#memory_int| |~#x~0.base|) (+ |~#x~0.offset| ~i~0)))) [2018-11-23 13:13:48,487 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 13:13:48,487 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:13:48,487 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 26) no Hoare annotation was computed. [2018-11-23 13:13:48,487 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 14 29) no Hoare annotation was computed. [2018-11-23 13:13:48,487 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 14 29) no Hoare annotation was computed. [2018-11-23 13:13:48,487 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 14 29) the Hoare annotation is: (or (not (= 0 (select (select |old(#memory_int)| |~#x~0.base|) (+ |old(~i~0)| |~#x~0.offset|)))) (< 0 |~#x~0.offset|) (not (= 0 |old(~i~0)|)) (< |~#x~0.offset| 0) (and (= ~i~0 0) (= 0 (select (select |#memory_int| |~#x~0.base|) (+ |~#x~0.offset| ~i~0))))) [2018-11-23 13:13:48,487 INFO L444 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (or (not (= 0 (select (select |old(#memory_int)| |~#x~0.base|) (+ |old(~i~0)| |~#x~0.offset|)))) (< 0 |~#x~0.offset|) (not (= 0 |old(~i~0)|)) (< |~#x~0.offset| 0)) [2018-11-23 13:13:48,487 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2018-11-23 13:13:48,487 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 24 26) no Hoare annotation was computed. [2018-11-23 13:13:48,488 INFO L448 ceAbstractionStarter]: For program point L18-1(lines 18 21) no Hoare annotation was computed. [2018-11-23 13:13:48,488 INFO L444 ceAbstractionStarter]: At program point L18-3(lines 18 21) the Hoare annotation is: (or (not (= 0 (select (select |old(#memory_int)| |~#x~0.base|) (+ |old(~i~0)| |~#x~0.offset|)))) (< 0 |~#x~0.offset|) (not (= 0 |old(~i~0)|)) (< |~#x~0.offset| 0) (and (= ~i~0 0) (= 0 (select (select |#memory_int| |~#x~0.base|) (+ |~#x~0.offset| ~i~0))))) [2018-11-23 13:13:48,488 INFO L448 ceAbstractionStarter]: For program point L18-4(lines 18 21) no Hoare annotation was computed. [2018-11-23 13:13:48,488 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-23 13:13:48,488 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-23 13:13:48,488 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-23 13:13:48,488 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-23 13:13:48,488 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-23 13:13:48,488 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-23 13:13:48,494 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 13:13:48,495 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 13:13:48,500 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 13:13:48,500 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 13:13:48,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:13:48 BoogieIcfgContainer [2018-11-23 13:13:48,502 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 13:13:48,502 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:13:48,502 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:13:48,503 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:13:48,503 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:13:47" (3/4) ... [2018-11-23 13:13:48,506 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 13:13:48,511 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 13:13:48,512 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 13:13:48,512 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 13:13:48,516 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 111 nodes and edges [2018-11-23 13:13:48,516 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2018-11-23 13:13:48,516 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2018-11-23 13:13:48,516 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-23 13:13:48,516 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 13:13:48,516 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 13:13:48,516 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 13:13:48,517 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 13:13:48,534 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(0 == \old(unknown-#memory_int-unknown)[x][\old(i) + x]) || 0 < x) || !(0 == \old(i))) || x < 0) || (i == 0 && 0 == unknown-#memory_int-unknown[x][x + i]) [2018-11-23 13:13:48,543 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1a331be3-ccb4-4f93-af5a-6cee59edecbe/bin-2019/uautomizer/witness.graphml [2018-11-23 13:13:48,543 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:13:48,544 INFO L168 Benchmark]: Toolchain (without parser) took 1609.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 958.2 MB in the beginning and 963.2 MB in the end (delta: -5.0 MB). Peak memory consumption was 112.9 MB. Max. memory is 11.5 GB. [2018-11-23 13:13:48,545 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:13:48,545 INFO L168 Benchmark]: CACSL2BoogieTranslator took 192.40 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 944.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-23 13:13:48,546 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.08 ms. Allocated memory is still 1.0 GB. Free memory was 944.8 MB in the beginning and 942.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:13:48,546 INFO L168 Benchmark]: Boogie Preprocessor took 75.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 942.1 MB in the beginning and 1.1 GB in the end (delta: -169.7 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-11-23 13:13:48,546 INFO L168 Benchmark]: RCFGBuilder took 309.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2018-11-23 13:13:48,547 INFO L168 Benchmark]: TraceAbstraction took 963.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 966.8 MB in the end (delta: 112.0 MB). Peak memory consumption was 112.0 MB. Max. memory is 11.5 GB. [2018-11-23 13:13:48,547 INFO L168 Benchmark]: Witness Printer took 41.14 ms. Allocated memory is still 1.1 GB. Free memory was 966.8 MB in the beginning and 963.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-23 13:13:48,549 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 192.40 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 944.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.08 ms. Allocated memory is still 1.0 GB. Free memory was 944.8 MB in the beginning and 942.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 942.1 MB in the beginning and 1.1 GB in the end (delta: -169.7 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 309.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 963.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 966.8 MB in the end (delta: 112.0 MB). Peak memory consumption was 112.0 MB. Max. memory is 11.5 GB. * Witness Printer took 41.14 ms. Allocated memory is still 1.1 GB. Free memory was 966.8 MB in the beginning and 963.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant [2018-11-23 13:13:48,554 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 13:13:48,554 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 13:13:48,555 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-23 13:13:48,555 WARN L1272 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((!(0 == \old(unknown-#memory_int-unknown)[x][\old(i) + x]) || 0 < x) || !(0 == \old(i))) || x < 0) || (i == 0 && 0 == unknown-#memory_int-unknown[x][x + i]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 9 SDslu, 17 SDs, 0 SdLazy, 12 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 10 NumberOfFragments, 117 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 3197 SizeOfPredicates, 5 NumberOfNonLiveVariables, 509 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...