./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/volatile_alias_true-termination.c_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_51672bc5-0f5e-48ed-bb66-a18b3ca9e541/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_51672bc5-0f5e-48ed-bb66-a18b3ca9e541/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_51672bc5-0f5e-48ed-bb66-a18b3ca9e541/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_51672bc5-0f5e-48ed-bb66-a18b3ca9e541/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/volatile_alias_true-termination.c_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_51672bc5-0f5e-48ed-bb66-a18b3ca9e541/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_51672bc5-0f5e-48ed-bb66-a18b3ca9e541/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 b4a4af23ae656ab916356d08324f42dc752fe903 ................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:58:00,845 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:58:00,847 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:58:00,857 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:58:00,857 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:58:00,858 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:58:00,859 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:58:00,861 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:58:00,862 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:58:00,863 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:58:00,864 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:58:00,865 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:58:00,866 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:58:00,866 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:58:00,867 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:58:00,869 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:58:00,869 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:58:00,871 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:58:00,873 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:58:00,874 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:58:00,875 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:58:00,876 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:58:00,878 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:58:00,879 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:58:00,879 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:58:00,880 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:58:00,881 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:58:00,882 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:58:00,883 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:58:00,884 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:58:00,884 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:58:00,885 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:58:00,885 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:58:00,886 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:58:00,887 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:58:00,888 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:58:00,888 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_51672bc5-0f5e-48ed-bb66-a18b3ca9e541/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-27 00:58:00,900 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:58:00,900 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:58:00,901 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:58:00,901 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 00:58:00,902 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 00:58:00,902 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 00:58:00,902 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 00:58:00,902 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:58:00,902 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:58:00,902 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:58:00,903 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:58:00,903 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:58:00,903 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:58:00,903 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:58:00,903 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:58:00,912 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:58:00,912 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:58:00,912 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:58:00,912 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:58:00,913 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:58:00,913 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:58:00,913 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:58:00,913 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:58:00,913 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:58:00,913 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:58:00,913 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:58:00,914 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 00:58:00,914 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:58:00,914 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:58:00,914 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_51672bc5-0f5e-48ed-bb66-a18b3ca9e541/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 -> b4a4af23ae656ab916356d08324f42dc752fe903 [2018-10-27 00:58:00,950 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:58:00,962 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:58:00,967 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:58:00,968 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:58:00,969 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:58:00,970 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_51672bc5-0f5e-48ed-bb66-a18b3ca9e541/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/volatile_alias_true-termination.c_true-unreach-call.i [2018-10-27 00:58:01,019 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_51672bc5-0f5e-48ed-bb66-a18b3ca9e541/bin-2019/uautomizer/data/1efa15290/0b591f994a7146d4ad81f6cf4c613786/FLAGf6ab1a407 [2018-10-27 00:58:01,373 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:58:01,373 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_51672bc5-0f5e-48ed-bb66-a18b3ca9e541/sv-benchmarks/c/ldv-regression/volatile_alias_true-termination.c_true-unreach-call.i [2018-10-27 00:58:01,378 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_51672bc5-0f5e-48ed-bb66-a18b3ca9e541/bin-2019/uautomizer/data/1efa15290/0b591f994a7146d4ad81f6cf4c613786/FLAGf6ab1a407 [2018-10-27 00:58:01,389 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_51672bc5-0f5e-48ed-bb66-a18b3ca9e541/bin-2019/uautomizer/data/1efa15290/0b591f994a7146d4ad81f6cf4c613786 [2018-10-27 00:58:01,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:58:01,392 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 00:58:01,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:58:01,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:58:01,396 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:58:01,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:58:01" (1/1) ... [2018-10-27 00:58:01,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@524d3618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:01, skipping insertion in model container [2018-10-27 00:58:01,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:58:01" (1/1) ... [2018-10-27 00:58:01,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:58:01,421 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:58:01,527 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:58:01,534 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:58:01,544 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:58:01,556 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:58:01,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:01 WrapperNode [2018-10-27 00:58:01,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:58:01,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:58:01,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:58:01,558 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:58:01,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:01" (1/1) ... [2018-10-27 00:58:01,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:01" (1/1) ... [2018-10-27 00:58:01,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:01" (1/1) ... [2018-10-27 00:58:01,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:01" (1/1) ... [2018-10-27 00:58:01,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:01" (1/1) ... [2018-10-27 00:58:01,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:01" (1/1) ... [2018-10-27 00:58:01,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:01" (1/1) ... [2018-10-27 00:58:01,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:58:01,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:58:01,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:58:01,585 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:58:01,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_51672bc5-0f5e-48ed-bb66-a18b3ca9e541/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:58:01,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:58:01,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:58:01,742 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:58:01,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-27 00:58:01,742 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:58:01,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-27 00:58:01,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-10-27 00:58:01,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-27 00:58:01,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-27 00:58:01,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-27 00:58:01,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:58:01,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:58:02,050 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:58:02,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:58:02 BoogieIcfgContainer [2018-10-27 00:58:02,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:58:02,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:58:02,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:58:02,057 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:58:02,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:58:01" (1/3) ... [2018-10-27 00:58:02,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e0810c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:58:02, skipping insertion in model container [2018-10-27 00:58:02,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:58:01" (2/3) ... [2018-10-27 00:58:02,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e0810c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:58:02, skipping insertion in model container [2018-10-27 00:58:02,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:58:02" (3/3) ... [2018-10-27 00:58:02,062 INFO L112 eAbstractionObserver]: Analyzing ICFG volatile_alias_true-termination.c_true-unreach-call.i [2018-10-27 00:58:02,071 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:58:02,079 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:58:02,097 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:58:02,130 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 00:58:02,131 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:58:02,131 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:58:02,131 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:58:02,132 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:58:02,132 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:58:02,132 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:58:02,132 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:58:02,133 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:58:02,154 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-10-27 00:58:02,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-27 00:58:02,162 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:58:02,163 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:58:02,165 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:58:02,170 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:58:02,173 INFO L82 PathProgramCache]: Analyzing trace with hash 675413072, now seen corresponding path program 1 times [2018-10-27 00:58:02,175 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 00:58:02,175 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 00:58:02,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:58:02,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:58:02,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:58:02,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:58:02,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:58:02,591 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:58:02,592 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-27 00:58:02,595 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 00:58:02,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 00:58:02,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-27 00:58:02,606 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 7 states. [2018-10-27 00:58:02,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:58:02,825 INFO L93 Difference]: Finished difference Result 29 states and 28 transitions. [2018-10-27 00:58:02,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 00:58:02,827 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-10-27 00:58:02,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:58:02,832 INFO L225 Difference]: With dead ends: 29 [2018-10-27 00:58:02,832 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 00:58:02,835 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-10-27 00:58:02,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 00:58:02,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 00:58:02,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 00:58:02,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 00:58:02,859 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-10-27 00:58:02,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:58:02,859 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 00:58:02,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 00:58:02,860 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 00:58:02,860 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 00:58:02,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 00:58:02,874 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:58:02,874 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:58:02,874 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:58:02,874 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:58:02,875 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 00:58:02,875 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:58:02,875 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:58:02,875 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2018-10-27 00:58:02,875 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 6 16) the Hoare annotation is: true [2018-10-27 00:58:02,875 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 6 16) no Hoare annotation was computed. [2018-10-27 00:58:02,875 INFO L425 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-10-27 00:58:02,876 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 6 16) no Hoare annotation was computed. [2018-10-27 00:58:02,876 INFO L425 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2018-10-27 00:58:02,876 INFO L425 ceAbstractionStarter]: For program point L11(line 11) no Hoare annotation was computed. [2018-10-27 00:58:02,876 INFO L425 ceAbstractionStarter]: For program point L12-1(lines 12 14) no Hoare annotation was computed. [2018-10-27 00:58:02,876 INFO L425 ceAbstractionStarter]: For program point L11-1(line 11) no Hoare annotation was computed. [2018-10-27 00:58:02,876 INFO L425 ceAbstractionStarter]: For program point L11-2(line 11) no Hoare annotation was computed. [2018-10-27 00:58:02,876 INFO L425 ceAbstractionStarter]: For program point L12-3(lines 12 14) no Hoare annotation was computed. [2018-10-27 00:58:02,876 INFO L425 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-10-27 00:58:02,877 INFO L425 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-10-27 00:58:02,877 INFO L425 ceAbstractionStarter]: For program point L8-2(line 8) no Hoare annotation was computed. [2018-10-27 00:58:02,877 INFO L425 ceAbstractionStarter]: For program point L8-3(line 8) no Hoare annotation was computed. [2018-10-27 00:58:02,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:58:02 BoogieIcfgContainer [2018-10-27 00:58:02,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:58:02,880 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:58:02,881 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:58:02,881 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:58:02,881 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:58:02" (3/4) ... [2018-10-27 00:58:02,885 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 00:58:02,892 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 00:58:02,892 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 00:58:02,896 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-10-27 00:58:02,896 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-27 00:58:02,896 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-27 00:58:02,896 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-27 00:58:02,928 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_51672bc5-0f5e-48ed-bb66-a18b3ca9e541/bin-2019/uautomizer/witness.graphml [2018-10-27 00:58:02,928 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:58:02,929 INFO L168 Benchmark]: Toolchain (without parser) took 1537.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.4 MB). Free memory was 960.7 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2018-10-27 00:58:02,930 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-10-27 00:58:02,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 163.80 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 949.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-27 00:58:02,931 INFO L168 Benchmark]: Boogie Preprocessor took 27.39 ms. Allocated memory is still 1.0 GB. Free memory is still 949.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:58:02,931 INFO L168 Benchmark]: RCFGBuilder took 466.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.4 MB). Free memory was 949.9 MB in the beginning and 1.2 GB in the end (delta: -236.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-10-27 00:58:02,932 INFO L168 Benchmark]: TraceAbstraction took 828.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 36.6 MB). Peak memory consumption was 36.6 MB. Max. memory is 11.5 GB. [2018-10-27 00:58:02,932 INFO L168 Benchmark]: Witness Printer took 47.76 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-10-27 00:58:02,935 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 163.80 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 949.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.39 ms. Allocated memory is still 1.0 GB. Free memory is still 949.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 466.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.4 MB). Free memory was 949.9 MB in the beginning and 1.2 GB in the end (delta: -236.2 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 828.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 36.6 MB). Peak memory consumption was 36.6 MB. Max. memory is 11.5 GB. * Witness Printer took 47.76 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 8 SDslu, 39 SDs, 0 SdLazy, 29 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 715 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...