./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/test29_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a3d6fb9c-14bc-4a7f-b3a1-41ee1676a5ad/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a3d6fb9c-14bc-4a7f-b3a1-41ee1676a5ad/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a3d6fb9c-14bc-4a7f-b3a1-41ee1676a5ad/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a3d6fb9c-14bc-4a7f-b3a1-41ee1676a5ad/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test29_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a3d6fb9c-14bc-4a7f-b3a1-41ee1676a5ad/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a3d6fb9c-14bc-4a7f-b3a1-41ee1676a5ad/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 2aa6c4430411ceeb023b25a4c3a2c7228d94ed35 ......................................................................................................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-11-10 01:49:11,936 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 01:49:11,937 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 01:49:11,945 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 01:49:11,945 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 01:49:11,946 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 01:49:11,947 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 01:49:11,948 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 01:49:11,949 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 01:49:11,950 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 01:49:11,950 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 01:49:11,951 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 01:49:11,951 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 01:49:11,953 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 01:49:11,954 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 01:49:11,954 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 01:49:11,955 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 01:49:11,957 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 01:49:11,958 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 01:49:11,959 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 01:49:11,961 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 01:49:11,962 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 01:49:11,963 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 01:49:11,964 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 01:49:11,964 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 01:49:11,964 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 01:49:11,965 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 01:49:11,966 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 01:49:11,966 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 01:49:11,967 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 01:49:11,967 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 01:49:11,969 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 01:49:11,969 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 01:49:11,969 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 01:49:11,970 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 01:49:11,970 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 01:49:11,971 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a3d6fb9c-14bc-4a7f-b3a1-41ee1676a5ad/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 01:49:11,981 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 01:49:11,981 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 01:49:11,982 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 01:49:11,982 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 01:49:11,983 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 01:49:11,983 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 01:49:11,983 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 01:49:11,983 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 01:49:11,983 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 01:49:11,983 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 01:49:11,984 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 01:49:11,984 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 01:49:11,984 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 01:49:11,985 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 01:49:11,985 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 01:49:11,985 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 01:49:11,985 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 01:49:11,985 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 01:49:11,985 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 01:49:11,985 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 01:49:11,986 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 01:49:11,986 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 01:49:11,986 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 01:49:11,986 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 01:49:11,986 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 01:49:11,986 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 01:49:11,986 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 01:49:11,986 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 01:49:11,986 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 01:49:11,986 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_a3d6fb9c-14bc-4a7f-b3a1-41ee1676a5ad/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 -> 2aa6c4430411ceeb023b25a4c3a2c7228d94ed35 [2018-11-10 01:49:12,013 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 01:49:12,024 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 01:49:12,026 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 01:49:12,027 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 01:49:12,028 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 01:49:12,028 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a3d6fb9c-14bc-4a7f-b3a1-41ee1676a5ad/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/test29_false-unreach-call_true-termination.c [2018-11-10 01:49:12,069 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a3d6fb9c-14bc-4a7f-b3a1-41ee1676a5ad/bin-2019/uautomizer/data/0a5ac7f5b/a4cacfe8fb4245bbbb9547f632f58bc2/FLAG362329d9d [2018-11-10 01:49:12,428 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 01:49:12,428 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a3d6fb9c-14bc-4a7f-b3a1-41ee1676a5ad/sv-benchmarks/c/ldv-regression/test29_false-unreach-call_true-termination.c [2018-11-10 01:49:12,435 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a3d6fb9c-14bc-4a7f-b3a1-41ee1676a5ad/bin-2019/uautomizer/data/0a5ac7f5b/a4cacfe8fb4245bbbb9547f632f58bc2/FLAG362329d9d [2018-11-10 01:49:12,451 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a3d6fb9c-14bc-4a7f-b3a1-41ee1676a5ad/bin-2019/uautomizer/data/0a5ac7f5b/a4cacfe8fb4245bbbb9547f632f58bc2 [2018-11-10 01:49:12,454 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 01:49:12,455 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 01:49:12,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 01:49:12,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 01:49:12,461 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 01:49:12,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:49:12" (1/1) ... [2018-11-10 01:49:12,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17bef964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:12, skipping insertion in model container [2018-11-10 01:49:12,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:49:12" (1/1) ... [2018-11-10 01:49:12,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 01:49:12,496 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 01:49:12,647 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 01:49:12,656 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 01:49:12,668 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 01:49:12,682 INFO L193 MainTranslator]: Completed translation [2018-11-10 01:49:12,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:12 WrapperNode [2018-11-10 01:49:12,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 01:49:12,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 01:49:12,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 01:49:12,683 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 01:49:12,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:12" (1/1) ... [2018-11-10 01:49:12,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:12" (1/1) ... [2018-11-10 01:49:12,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:12" (1/1) ... [2018-11-10 01:49:12,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:12" (1/1) ... [2018-11-10 01:49:12,708 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:12" (1/1) ... [2018-11-10 01:49:12,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:12" (1/1) ... [2018-11-10 01:49:12,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:12" (1/1) ... [2018-11-10 01:49:12,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 01:49:12,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 01:49:12,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 01:49:12,712 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 01:49:12,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3d6fb9c-14bc-4a7f-b3a1-41ee1676a5ad/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 [2018-11-10 01:49:12,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 01:49:12,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 01:49:12,806 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 01:49:12,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 01:49:12,806 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 01:49:12,806 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 01:49:12,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 01:49:12,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 01:49:12,807 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 01:49:12,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 01:49:12,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 01:49:12,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 01:49:12,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 01:49:12,965 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 01:49:12,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:49:12 BoogieIcfgContainer [2018-11-10 01:49:12,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 01:49:12,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 01:49:12,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 01:49:12,969 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 01:49:12,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:49:12" (1/3) ... [2018-11-10 01:49:12,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bba7523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:49:12, skipping insertion in model container [2018-11-10 01:49:12,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:49:12" (2/3) ... [2018-11-10 01:49:12,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bba7523 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:49:12, skipping insertion in model container [2018-11-10 01:49:12,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:49:12" (3/3) ... [2018-11-10 01:49:12,973 INFO L112 eAbstractionObserver]: Analyzing ICFG test29_false-unreach-call_true-termination.c [2018-11-10 01:49:12,982 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 01:49:12,989 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 01:49:13,002 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 01:49:13,029 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 01:49:13,029 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 01:49:13,029 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 01:49:13,029 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 01:49:13,030 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 01:49:13,030 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 01:49:13,030 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 01:49:13,030 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 01:49:13,030 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 01:49:13,047 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-11-10 01:49:13,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 01:49:13,051 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:49:13,052 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:49:13,054 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 01:49:13,058 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:49:13,058 INFO L82 PathProgramCache]: Analyzing trace with hash -247790809, now seen corresponding path program 1 times [2018-11-10 01:49:13,059 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 01:49:13,060 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 01:49:13,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:49:13,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:49:13,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:49:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:49:13,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:49:13,180 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:49:13,180 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 01:49:13,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 01:49:13,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 01:49:13,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 01:49:13,198 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states. [2018-11-10 01:49:13,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:49:13,237 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2018-11-10 01:49:13,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 01:49:13,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-10 01:49:13,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:49:13,246 INFO L225 Difference]: With dead ends: 41 [2018-11-10 01:49:13,246 INFO L226 Difference]: Without dead ends: 22 [2018-11-10 01:49:13,248 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 01:49:13,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-10 01:49:13,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-10 01:49:13,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-10 01:49:13,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2018-11-10 01:49:13,274 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 18 [2018-11-10 01:49:13,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:49:13,274 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2018-11-10 01:49:13,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 01:49:13,275 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2018-11-10 01:49:13,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 01:49:13,275 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:49:13,275 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:49:13,275 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 01:49:13,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:49:13,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1907680124, now seen corresponding path program 1 times [2018-11-10 01:49:13,276 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 01:49:13,276 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 01:49:13,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:49:13,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:49:13,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:49:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 01:49:13,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 01:49:13,367 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 01:49:13,368 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 01:49:13,369 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 01:49:13,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 01:49:13,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 01:49:13,369 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 7 states. [2018-11-10 01:49:13,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 01:49:13,556 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2018-11-10 01:49:13,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 01:49:13,556 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-10 01:49:13,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 01:49:13,557 INFO L225 Difference]: With dead ends: 34 [2018-11-10 01:49:13,557 INFO L226 Difference]: Without dead ends: 21 [2018-11-10 01:49:13,558 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-10 01:49:13,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-10 01:49:13,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-10 01:49:13,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-10 01:49:13,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2018-11-10 01:49:13,562 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 20 [2018-11-10 01:49:13,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 01:49:13,562 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2018-11-10 01:49:13,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 01:49:13,563 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2018-11-10 01:49:13,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-10 01:49:13,563 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 01:49:13,563 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 01:49:13,563 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 01:49:13,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 01:49:13,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1946460066, now seen corresponding path program 1 times [2018-11-10 01:49:13,564 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 01:49:13,564 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 01:49:13,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:49:13,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 01:49:13,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 01:49:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 01:49:13,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 01:49:13,610 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 01:49:13,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:49:13 BoogieIcfgContainer [2018-11-10 01:49:13,635 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 01:49:13,636 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 01:49:13,636 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 01:49:13,636 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 01:49:13,636 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:49:12" (3/4) ... [2018-11-10 01:49:13,638 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 01:49:13,672 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a3d6fb9c-14bc-4a7f-b3a1-41ee1676a5ad/bin-2019/uautomizer/witness.graphml [2018-11-10 01:49:13,672 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 01:49:13,672 INFO L168 Benchmark]: Toolchain (without parser) took 1218.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -142.0 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2018-11-10 01:49:13,674 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 01:49:13,674 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.40 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-10 01:49:13,675 INFO L168 Benchmark]: Boogie Preprocessor took 28.76 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 945.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 01:49:13,675 INFO L168 Benchmark]: RCFGBuilder took 253.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -213.6 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-10 01:49:13,676 INFO L168 Benchmark]: TraceAbstraction took 669.16 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: 54.8 MB). Peak memory consumption was 54.8 MB. Max. memory is 11.5 GB. [2018-11-10 01:49:13,676 INFO L168 Benchmark]: Witness Printer took 36.10 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. [2018-11-10 01:49:13,678 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 226.40 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.76 ms. Allocated memory is still 1.0 GB. Free memory was 948.3 MB in the beginning and 945.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 253.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 945.6 MB in the beginning and 1.2 GB in the end (delta: -213.6 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 669.16 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: 54.8 MB). Peak memory consumption was 54.8 MB. Max. memory is 11.5 GB. * Witness Printer took 36.10 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: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] FCALL union dummy d1, d2; VAL [d1={6:0}, d2={7:0}] [L14] int n = __VERIFIER_nondet_int(); [L15] COND FALSE, EXPR !(n ? &d1 : &d2) VAL [d1={6:0}, d2={7:0}, n=0, n ? &d1 : &d2={7:0}] [L15] union dummy *pd = n ? &d1 : &d2; [L16] FCALL d1.a = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=1, d1={6:0}, d2={7:0}, n=0, pd={7:0}] [L17] COND FALSE !(pd == &d1) VAL [d1={6:0}, d2={7:0}, n=0, pd={7:0}] [L20] FCALL pd->b = 0 VAL [d1={6:0}, d2={7:0}, n=0, pd={7:0}] [L22] pd == &d2 && d1.a != 0 VAL [d1={6:0}, d2={7:0}, n=0, pd={7:0}, pd == &d2 && d1.a != 0=1] [L22] EXPR, FCALL d1.a VAL [d1={6:0}, d1.a=1, d2={7:0}, n=0, pd={7:0}, pd == &d2 && d1.a != 0=1] [L22] pd == &d2 && d1.a != 0 VAL [d1={6:0}, d1.a=1, d2={7:0}, n=0, pd={7:0}, pd == &d2 && d1.a != 0=1] [L22] COND TRUE pd == &d2 && d1.a != 0 [L28] __VERIFIER_error() VAL [d1={6:0}, d2={7:0}, n=0, pd={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 34 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 SDtfs, 46 SDslu, 68 SDs, 0 SdLazy, 52 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1218 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...