./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test21_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6a3f5be2-5588-4c8c-97ad-89908baf58c1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6a3f5be2-5588-4c8c-97ad-89908baf58c1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6a3f5be2-5588-4c8c-97ad-89908baf58c1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6a3f5be2-5588-4c8c-97ad-89908baf58c1/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test21_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6a3f5be2-5588-4c8c-97ad-89908baf58c1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6a3f5be2-5588-4c8c-97ad-89908baf58c1/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 36029c97ff36b924dec4fff6e18b89b3177e9048 ......................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 01:00:43,803 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 01:00:43,805 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 01:00:43,814 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 01:00:43,814 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 01:00:43,815 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 01:00:43,815 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 01:00:43,817 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 01:00:43,818 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 01:00:43,818 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 01:00:43,819 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 01:00:43,819 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 01:00:43,820 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 01:00:43,820 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 01:00:43,821 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 01:00:43,822 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 01:00:43,822 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 01:00:43,823 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 01:00:43,825 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 01:00:43,826 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 01:00:43,826 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 01:00:43,827 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 01:00:43,829 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 01:00:43,829 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 01:00:43,829 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 01:00:43,830 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 01:00:43,830 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 01:00:43,831 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 01:00:43,831 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 01:00:43,832 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 01:00:43,832 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 01:00:43,833 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 01:00:43,833 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 01:00:43,833 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 01:00:43,834 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 01:00:43,834 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 01:00:43,835 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6a3f5be2-5588-4c8c-97ad-89908baf58c1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-09 01:00:43,842 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 01:00:43,843 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 01:00:43,843 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 01:00:43,843 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 01:00:43,844 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 01:00:43,844 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 01:00:43,844 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 01:00:43,844 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 01:00:43,844 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 01:00:43,844 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 01:00:43,844 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 01:00:43,844 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 01:00:43,844 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 01:00:43,845 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 01:00:43,845 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 01:00:43,845 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 01:00:43,845 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 01:00:43,845 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 01:00:43,845 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 01:00:43,845 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 01:00:43,845 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 01:00:43,845 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 01:00:43,845 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 01:00:43,845 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:00:43,846 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 01:00:43,846 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 01:00:43,846 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 01:00:43,846 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 01:00:43,846 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 01:00:43,846 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 01:00:43,846 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_6a3f5be2-5588-4c8c-97ad-89908baf58c1/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 -> 36029c97ff36b924dec4fff6e18b89b3177e9048 [2018-12-09 01:00:43,864 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 01:00:43,872 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 01:00:43,875 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 01:00:43,876 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 01:00:43,876 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 01:00:43,877 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6a3f5be2-5588-4c8c-97ad-89908baf58c1/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/test21_false-unreach-call_true-termination.c [2018-12-09 01:00:43,913 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6a3f5be2-5588-4c8c-97ad-89908baf58c1/bin-2019/uautomizer/data/783b50ac6/d2031d5f866b436493d5390f3f243c71/FLAG53dc881a7 [2018-12-09 01:00:44,368 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 01:00:44,368 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6a3f5be2-5588-4c8c-97ad-89908baf58c1/sv-benchmarks/c/ldv-regression/test21_false-unreach-call_true-termination.c [2018-12-09 01:00:44,372 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6a3f5be2-5588-4c8c-97ad-89908baf58c1/bin-2019/uautomizer/data/783b50ac6/d2031d5f866b436493d5390f3f243c71/FLAG53dc881a7 [2018-12-09 01:00:44,380 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6a3f5be2-5588-4c8c-97ad-89908baf58c1/bin-2019/uautomizer/data/783b50ac6/d2031d5f866b436493d5390f3f243c71 [2018-12-09 01:00:44,382 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 01:00:44,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 01:00:44,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 01:00:44,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 01:00:44,385 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 01:00:44,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:00:44" (1/1) ... [2018-12-09 01:00:44,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18182f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:44, skipping insertion in model container [2018-12-09 01:00:44,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:00:44" (1/1) ... [2018-12-09 01:00:44,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 01:00:44,401 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 01:00:44,490 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:00:44,497 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 01:00:44,507 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:00:44,516 INFO L195 MainTranslator]: Completed translation [2018-12-09 01:00:44,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:44 WrapperNode [2018-12-09 01:00:44,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 01:00:44,517 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 01:00:44,517 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 01:00:44,517 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 01:00:44,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:44" (1/1) ... [2018-12-09 01:00:44,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:44" (1/1) ... [2018-12-09 01:00:44,531 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 01:00:44,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 01:00:44,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 01:00:44,532 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 01:00:44,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:44" (1/1) ... [2018-12-09 01:00:44,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:44" (1/1) ... [2018-12-09 01:00:44,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:44" (1/1) ... [2018-12-09 01:00:44,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:44" (1/1) ... [2018-12-09 01:00:44,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:44" (1/1) ... [2018-12-09 01:00:44,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:44" (1/1) ... [2018-12-09 01:00:44,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:44" (1/1) ... [2018-12-09 01:00:44,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 01:00:44,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 01:00:44,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 01:00:44,577 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 01:00:44,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6a3f5be2-5588-4c8c-97ad-89908baf58c1/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 [2018-12-09 01:00:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure init [2018-12-09 01:00:44,608 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2018-12-09 01:00:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 01:00:44,608 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 01:00:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 01:00:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure check [2018-12-09 01:00:44,608 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2018-12-09 01:00:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 01:00:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 01:00:44,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 01:00:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 01:00:44,608 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2018-12-09 01:00:44,608 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2018-12-09 01:00:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 01:00:44,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 01:00:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 01:00:44,710 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 01:00:44,710 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 01:00:44,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:00:44 BoogieIcfgContainer [2018-12-09 01:00:44,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 01:00:44,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 01:00:44,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 01:00:44,712 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 01:00:44,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:00:44" (1/3) ... [2018-12-09 01:00:44,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7ea451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:00:44, skipping insertion in model container [2018-12-09 01:00:44,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:00:44" (2/3) ... [2018-12-09 01:00:44,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b7ea451 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:00:44, skipping insertion in model container [2018-12-09 01:00:44,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:00:44" (3/3) ... [2018-12-09 01:00:44,714 INFO L112 eAbstractionObserver]: Analyzing ICFG test21_false-unreach-call_true-termination.c [2018-12-09 01:00:44,720 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 01:00:44,725 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 01:00:44,734 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 01:00:44,750 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 01:00:44,750 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 01:00:44,750 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 01:00:44,750 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 01:00:44,751 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 01:00:44,751 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 01:00:44,751 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 01:00:44,751 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 01:00:44,751 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 01:00:44,760 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-12-09 01:00:44,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 01:00:44,764 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:00:44,764 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] [2018-12-09 01:00:44,765 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:00:44,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:00:44,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1636767817, now seen corresponding path program 1 times [2018-12-09 01:00:44,770 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 01:00:44,770 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 01:00:44,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:00:44,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:00:44,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:00:44,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:00:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:00:44,880 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 01:00:44,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:00:44 BoogieIcfgContainer [2018-12-09 01:00:44,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 01:00:44,902 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 01:00:44,902 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 01:00:44,902 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 01:00:44,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:00:44" (3/4) ... [2018-12-09 01:00:44,903 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 01:00:44,931 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6a3f5be2-5588-4c8c-97ad-89908baf58c1/bin-2019/uautomizer/witness.graphml [2018-12-09 01:00:44,932 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 01:00:44,932 INFO L168 Benchmark]: Toolchain (without parser) took 550.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 958.7 MB in the beginning and 1.1 GB in the end (delta: -92.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:00:44,933 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:00:44,933 INFO L168 Benchmark]: CACSL2BoogieTranslator took 133.75 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 946.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-09 01:00:44,934 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.17 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:00:44,934 INFO L168 Benchmark]: Boogie Preprocessor took 45.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -140.0 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-12-09 01:00:44,934 INFO L168 Benchmark]: RCFGBuilder took 132.93 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-12-09 01:00:44,935 INFO L168 Benchmark]: TraceAbstraction took 190.80 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-09 01:00:44,935 INFO L168 Benchmark]: Witness Printer took 30.11 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 01:00:44,936 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 979.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 133.75 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 946.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.17 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.8 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -140.0 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 132.93 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 190.80 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 30.11 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 42]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] struct dummy d1, d2; VAL [\old(d1)=10, \old(d1)=16, \old(d2)=14, \old(d2)=12, d1={11:0}, d2={15:0}] [L32] CALL init() VAL [d1={11:0}, d2={15:0}] [L13] d1.a = __VERIFIER_nondet_int() [L14] d1.b = __VERIFIER_nondet_int() [L16] d2.a = __VERIFIER_nondet_int() [L17] d2.b = __VERIFIER_nondet_int() [L32] RET init() VAL [d1={11:0}, d2={15:0}] [L33] CALL, EXPR get_dummy() VAL [d1={11:0}, d2={15:0}] [L22] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=1, __VERIFIER_nondet_bool() ? &d1 : &d2={11:0}, d1={11:0}, d2={15:0}] [L22] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L33] RET, EXPR get_dummy() VAL [d1={11:0}, d2={15:0}, get_dummy()={11:0}] [L33] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); [L33] CALL, EXPR get_dummy() VAL [d1={11:0}, d2={15:0}] [L22] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=1, __VERIFIER_nondet_bool() ? &d1 : &d2={11:0}, d1={11:0}, d2={15:0}] [L22] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L33] RET, EXPR get_dummy() VAL [d1={11:0}, d2={15:0}, get_dummy()={11:0}, pd1={11:0}] [L33] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(); [L34] COND TRUE pd1 != 0 && pd1 == pd2 VAL [d1={11:0}, d2={15:0}, pd1={11:0}, pd2={11:0}] [L35] CALL, EXPR check(pd1, pd2) VAL [d1={11:0}, d2={15:0}, s1={11:0}, s2={11:0}] [L27] EXPR s1->a [L27] EXPR s2->b [L27] return s1->a == s2->b; [L35] RET, EXPR check(pd1, pd2) VAL [check(pd1, pd2)=0, d1={11:0}, d2={15:0}, pd1={11:0}, pd2={11:0}] [L35] COND TRUE !check(pd1, pd2) [L42] __VERIFIER_error() VAL [d1={11:0}, d2={15:0}, pd1={11:0}, pd2={11:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 31 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...