./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test21_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a25a6a12-553f-43ac-9ec8-73c73503c960/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a25a6a12-553f-43ac-9ec8-73c73503c960/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a25a6a12-553f-43ac-9ec8-73c73503c960/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a25a6a12-553f-43ac-9ec8-73c73503c960/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test21_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a25a6a12-553f-43ac-9ec8-73c73503c960/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a25a6a12-553f-43ac-9ec8-73c73503c960/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 e96ea2b5694d083c4ab21538f2478ac793ab7d6e .......................................................................................................................................................................................................................................................................................................... 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 01:23:20,711 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 01:23:20,712 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 01:23:20,720 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 01:23:20,720 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 01:23:20,721 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 01:23:20,722 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 01:23:20,723 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 01:23:20,724 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 01:23:20,724 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 01:23:20,725 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 01:23:20,725 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 01:23:20,726 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 01:23:20,726 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 01:23:20,727 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 01:23:20,728 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 01:23:20,728 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 01:23:20,730 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 01:23:20,731 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 01:23:20,732 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 01:23:20,733 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 01:23:20,734 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 01:23:20,736 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 01:23:20,736 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 01:23:20,736 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 01:23:20,737 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 01:23:20,738 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 01:23:20,738 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 01:23:20,739 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 01:23:20,740 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 01:23:20,740 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 01:23:20,740 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 01:23:20,741 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 01:23:20,741 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 01:23:20,741 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 01:23:20,742 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 01:23:20,742 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a25a6a12-553f-43ac-9ec8-73c73503c960/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 01:23:20,752 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 01:23:20,752 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 01:23:20,753 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 01:23:20,753 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 01:23:20,754 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 01:23:20,754 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 01:23:20,754 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 01:23:20,754 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 01:23:20,754 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 01:23:20,754 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 01:23:20,754 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 01:23:20,755 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 01:23:20,755 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 01:23:20,755 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 01:23:20,755 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 01:23:20,755 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 01:23:20,755 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 01:23:20,755 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 01:23:20,755 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 01:23:20,756 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 01:23:20,756 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 01:23:20,756 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 01:23:20,756 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 01:23:20,756 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 01:23:20,756 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 01:23:20,756 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 01:23:20,757 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 01:23:20,758 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 01:23:20,759 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 01:23:20,759 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 01:23:20,759 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_a25a6a12-553f-43ac-9ec8-73c73503c960/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 -> e96ea2b5694d083c4ab21538f2478ac793ab7d6e [2018-11-23 01:23:20,782 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 01:23:20,790 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 01:23:20,792 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 01:23:20,793 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 01:23:20,793 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 01:23:20,794 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a25a6a12-553f-43ac-9ec8-73c73503c960/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/test21_true-unreach-call_true-termination.c [2018-11-23 01:23:20,835 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a25a6a12-553f-43ac-9ec8-73c73503c960/bin-2019/uautomizer/data/d4739d6cf/a02088b9afce45bfab5b939b87cf4bb9/FLAG252399da7 [2018-11-23 01:23:21,230 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 01:23:21,231 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a25a6a12-553f-43ac-9ec8-73c73503c960/sv-benchmarks/c/ldv-regression/test21_true-unreach-call_true-termination.c [2018-11-23 01:23:21,234 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a25a6a12-553f-43ac-9ec8-73c73503c960/bin-2019/uautomizer/data/d4739d6cf/a02088b9afce45bfab5b939b87cf4bb9/FLAG252399da7 [2018-11-23 01:23:21,243 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a25a6a12-553f-43ac-9ec8-73c73503c960/bin-2019/uautomizer/data/d4739d6cf/a02088b9afce45bfab5b939b87cf4bb9 [2018-11-23 01:23:21,244 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 01:23:21,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 01:23:21,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 01:23:21,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 01:23:21,249 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 01:23:21,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:23:21" (1/1) ... [2018-11-23 01:23:21,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57f3324f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:21, skipping insertion in model container [2018-11-23 01:23:21,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:23:21" (1/1) ... [2018-11-23 01:23:21,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 01:23:21,274 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 01:23:21,380 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 01:23:21,386 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 01:23:21,396 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 01:23:21,406 INFO L195 MainTranslator]: Completed translation [2018-11-23 01:23:21,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:21 WrapperNode [2018-11-23 01:23:21,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 01:23:21,407 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 01:23:21,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 01:23:21,407 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 01:23:21,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:21" (1/1) ... [2018-11-23 01:23:21,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:21" (1/1) ... [2018-11-23 01:23:21,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 01:23:21,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 01:23:21,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 01:23:21,422 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 01:23:21,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:21" (1/1) ... [2018-11-23 01:23:21,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:21" (1/1) ... [2018-11-23 01:23:21,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:21" (1/1) ... [2018-11-23 01:23:21,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:21" (1/1) ... [2018-11-23 01:23:21,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:21" (1/1) ... [2018-11-23 01:23:21,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:21" (1/1) ... [2018-11-23 01:23:21,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:21" (1/1) ... [2018-11-23 01:23:21,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 01:23:21,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 01:23:21,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 01:23:21,435 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 01:23:21,436 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a25a6a12-553f-43ac-9ec8-73c73503c960/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 01:23:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure init [2018-11-23 01:23:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2018-11-23 01:23:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 01:23:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 01:23:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 01:23:21,504 INFO L130 BoogieDeclarations]: Found specification of procedure check [2018-11-23 01:23:21,504 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2018-11-23 01:23:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 01:23:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 01:23:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 01:23:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 01:23:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2018-11-23 01:23:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2018-11-23 01:23:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 01:23:21,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 01:23:21,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 01:23:21,619 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 01:23:21,620 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 01:23:21,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:23:21 BoogieIcfgContainer [2018-11-23 01:23:21,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 01:23:21,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 01:23:21,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 01:23:21,622 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 01:23:21,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:23:21" (1/3) ... [2018-11-23 01:23:21,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a6f3084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:23:21, skipping insertion in model container [2018-11-23 01:23:21,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:23:21" (2/3) ... [2018-11-23 01:23:21,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a6f3084 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:23:21, skipping insertion in model container [2018-11-23 01:23:21,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:23:21" (3/3) ... [2018-11-23 01:23:21,625 INFO L112 eAbstractionObserver]: Analyzing ICFG test21_true-unreach-call_true-termination.c [2018-11-23 01:23:21,630 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 01:23:21,635 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 01:23:21,644 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 01:23:21,661 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 01:23:21,661 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 01:23:21,661 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 01:23:21,661 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 01:23:21,661 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 01:23:21,661 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 01:23:21,662 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 01:23:21,662 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 01:23:21,662 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 01:23:21,674 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-11-23 01:23:21,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-23 01:23:21,678 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 01:23:21,678 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 01:23:21,679 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 01:23:21,682 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 01:23:21,683 INFO L82 PathProgramCache]: Analyzing trace with hash 1636767817, now seen corresponding path program 1 times [2018-11-23 01:23:21,684 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 01:23:21,684 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 01:23:21,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:23:21,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 01:23:21,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 01:23:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 01:23:21,954 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 01:23:21,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 01:23:21,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-23 01:23:21,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 01:23:21,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 01:23:21,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-23 01:23:21,968 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 10 states. [2018-11-23 01:23:22,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 01:23:22,177 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2018-11-23 01:23:22,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 01:23:22,178 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2018-11-23 01:23:22,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 01:23:22,182 INFO L225 Difference]: With dead ends: 56 [2018-11-23 01:23:22,182 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 01:23:22,185 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2018-11-23 01:23:22,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 01:23:22,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 01:23:22,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 01:23:22,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 01:23:22,202 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2018-11-23 01:23:22,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 01:23:22,202 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 01:23:22,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 01:23:22,203 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 01:23:22,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 01:23:22,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 01:23:22,228 INFO L448 ceAbstractionStarter]: For program point initEXIT(lines 11 18) no Hoare annotation was computed. [2018-11-23 01:23:22,228 INFO L451 ceAbstractionStarter]: At program point initENTRY(lines 11 18) the Hoare annotation is: true [2018-11-23 01:23:22,228 INFO L448 ceAbstractionStarter]: For program point initFINAL(lines 11 18) no Hoare annotation was computed. [2018-11-23 01:23:22,228 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 01:23:22,228 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 01:23:22,228 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 01:23:22,229 INFO L448 ceAbstractionStarter]: For program point get_dummyFINAL(lines 20 23) no Hoare annotation was computed. [2018-11-23 01:23:22,229 INFO L451 ceAbstractionStarter]: At program point get_dummyENTRY(lines 20 23) the Hoare annotation is: true [2018-11-23 01:23:22,229 INFO L448 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-23 01:23:22,229 INFO L448 ceAbstractionStarter]: For program point get_dummyEXIT(lines 20 23) no Hoare annotation was computed. [2018-11-23 01:23:22,229 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 01:23:22,229 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 01:23:22,229 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 01:23:22,229 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 01:23:22,229 INFO L448 ceAbstractionStarter]: For program point L33(line 33) no Hoare annotation was computed. [2018-11-23 01:23:22,229 INFO L448 ceAbstractionStarter]: For program point L35-2(lines 35 37) no Hoare annotation was computed. [2018-11-23 01:23:22,230 INFO L451 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: true [2018-11-23 01:23:22,230 INFO L451 ceAbstractionStarter]: At program point L33-1(line 33) the Hoare annotation is: true [2018-11-23 01:23:22,230 INFO L448 ceAbstractionStarter]: For program point L34-2(lines 34 38) no Hoare annotation was computed. [2018-11-23 01:23:22,230 INFO L448 ceAbstractionStarter]: For program point L33-2(line 33) no Hoare annotation was computed. [2018-11-23 01:23:22,230 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 30 44) the Hoare annotation is: true [2018-11-23 01:23:22,230 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 30 44) no Hoare annotation was computed. [2018-11-23 01:23:22,230 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 30 44) no Hoare annotation was computed. [2018-11-23 01:23:22,230 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2018-11-23 01:23:22,230 INFO L444 ceAbstractionStarter]: At program point L36(lines 31 44) the Hoare annotation is: false [2018-11-23 01:23:22,231 INFO L444 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: (and (= main_~pd1~0.base main_~pd2~0.base) (= main_~pd1~0.offset main_~pd2~0.offset)) [2018-11-23 01:23:22,231 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 38) no Hoare annotation was computed. [2018-11-23 01:23:22,231 INFO L448 ceAbstractionStarter]: For program point L35-1(line 35) no Hoare annotation was computed. [2018-11-23 01:23:22,231 INFO L451 ceAbstractionStarter]: At program point checkENTRY(lines 25 28) the Hoare annotation is: true [2018-11-23 01:23:22,231 INFO L448 ceAbstractionStarter]: For program point checkFINAL(lines 25 28) no Hoare annotation was computed. [2018-11-23 01:23:22,231 INFO L448 ceAbstractionStarter]: For program point checkEXIT(lines 25 28) no Hoare annotation was computed. [2018-11-23 01:23:22,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:23:22 BoogieIcfgContainer [2018-11-23 01:23:22,238 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 01:23:22,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 01:23:22,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 01:23:22,239 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 01:23:22,239 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:23:21" (3/4) ... [2018-11-23 01:23:22,242 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 01:23:22,246 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure init [2018-11-23 01:23:22,246 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 01:23:22,246 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure get_dummy [2018-11-23 01:23:22,246 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 01:23:22,246 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure check [2018-11-23 01:23:22,249 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-11-23 01:23:22,249 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 01:23:22,250 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 01:23:22,250 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 01:23:22,285 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a25a6a12-553f-43ac-9ec8-73c73503c960/bin-2019/uautomizer/witness.graphml [2018-11-23 01:23:22,285 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 01:23:22,286 INFO L168 Benchmark]: Toolchain (without parser) took 1040.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -93.3 MB). Peak memory consumption was 54.0 MB. Max. memory is 11.5 GB. [2018-11-23 01:23:22,287 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 01:23:22,287 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.72 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 01:23:22,287 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.76 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 01:23:22,288 INFO L168 Benchmark]: Boogie Preprocessor took 13.25 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 01:23:22,288 INFO L168 Benchmark]: RCFGBuilder took 184.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -181.7 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-23 01:23:22,288 INFO L168 Benchmark]: TraceAbstraction took 618.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 71.7 MB). Peak memory consumption was 71.7 MB. Max. memory is 11.5 GB. [2018-11-23 01:23:22,289 INFO L168 Benchmark]: Witness Printer took 46.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 01:23:22,291 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 160.72 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.76 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.25 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 184.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -181.7 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 618.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 71.7 MB). Peak memory consumption was 71.7 MB. Max. memory is 11.5 GB. * Witness Printer took 46.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: 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: 31]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 31 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 16 SDslu, 153 SDs, 0 SdLazy, 127 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 11 LocationsWithAnnotation, 14 PreInvPairs, 16 NumberOfFragments, 17 HoareAnnotationTreeSize, 14 FomulaSimplifications, 14 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 3360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...