./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/ldv-regression/1_3_true-termination.c_false-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_88af13e4-89ed-46a8-9471-4db5d00a15f8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_88af13e4-89ed-46a8-9471-4db5d00a15f8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_88af13e4-89ed-46a8-9471-4db5d00a15f8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_88af13e4-89ed-46a8-9471-4db5d00a15f8/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/1_3_true-termination.c_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_88af13e4-89ed-46a8-9471-4db5d00a15f8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_88af13e4-89ed-46a8-9471-4db5d00a15f8/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 c11ac37b43be66e9ce0dd54a8292c8a5449b189d ............................................................................................................................................................................................................................................................................................................... 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 02:19:00,881 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 02:19:00,882 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 02:19:00,890 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 02:19:00,891 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 02:19:00,891 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 02:19:00,892 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 02:19:00,894 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 02:19:00,895 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 02:19:00,896 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 02:19:00,897 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 02:19:00,897 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 02:19:00,898 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 02:19:00,899 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 02:19:00,900 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 02:19:00,900 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 02:19:00,901 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 02:19:00,902 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 02:19:00,904 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 02:19:00,905 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 02:19:00,906 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 02:19:00,907 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 02:19:00,909 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 02:19:00,909 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 02:19:00,909 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 02:19:00,910 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 02:19:00,911 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 02:19:00,911 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 02:19:00,912 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 02:19:00,913 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 02:19:00,913 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 02:19:00,914 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 02:19:00,914 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 02:19:00,914 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 02:19:00,915 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 02:19:00,916 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 02:19:00,916 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_88af13e4-89ed-46a8-9471-4db5d00a15f8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 02:19:00,927 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 02:19:00,927 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 02:19:00,928 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 02:19:00,928 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 02:19:00,929 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 02:19:00,929 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 02:19:00,929 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 02:19:00,929 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 02:19:00,929 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 02:19:00,929 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 02:19:00,930 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 02:19:00,930 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 02:19:00,930 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 02:19:00,930 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 02:19:00,930 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 02:19:00,930 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 02:19:00,931 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 02:19:00,931 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 02:19:00,931 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 02:19:00,931 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 02:19:00,931 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 02:19:00,931 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 02:19:00,931 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 02:19:00,932 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 02:19:00,932 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 02:19:00,932 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 02:19:00,932 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 02:19:00,932 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 02:19:00,932 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 02:19:00,933 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_88af13e4-89ed-46a8-9471-4db5d00a15f8/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 -> c11ac37b43be66e9ce0dd54a8292c8a5449b189d [2018-11-10 02:19:00,960 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 02:19:00,971 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 02:19:00,973 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 02:19:00,975 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 02:19:00,975 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 02:19:00,975 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_88af13e4-89ed-46a8-9471-4db5d00a15f8/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-regression/1_3_true-termination.c_false-unreach-call.i [2018-11-10 02:19:01,018 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_88af13e4-89ed-46a8-9471-4db5d00a15f8/bin-2019/uautomizer/data/807bfc0ff/03ed651aa86547ec9103d0dc3914774d/FLAG7d3eabbe1 [2018-11-10 02:19:01,388 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 02:19:01,389 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_88af13e4-89ed-46a8-9471-4db5d00a15f8/sv-benchmarks/c/ldv-regression/1_3_true-termination.c_false-unreach-call.i [2018-11-10 02:19:01,395 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_88af13e4-89ed-46a8-9471-4db5d00a15f8/bin-2019/uautomizer/data/807bfc0ff/03ed651aa86547ec9103d0dc3914774d/FLAG7d3eabbe1 [2018-11-10 02:19:01,405 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_88af13e4-89ed-46a8-9471-4db5d00a15f8/bin-2019/uautomizer/data/807bfc0ff/03ed651aa86547ec9103d0dc3914774d [2018-11-10 02:19:01,407 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 02:19:01,408 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 02:19:01,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 02:19:01,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 02:19:01,412 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 02:19:01,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:19:01" (1/1) ... [2018-11-10 02:19:01,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50366430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:19:01, skipping insertion in model container [2018-11-10 02:19:01,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:19:01" (1/1) ... [2018-11-10 02:19:01,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 02:19:01,445 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 02:19:01,558 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 02:19:01,564 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 02:19:01,576 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 02:19:01,589 INFO L193 MainTranslator]: Completed translation [2018-11-10 02:19:01,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:19:01 WrapperNode [2018-11-10 02:19:01,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 02:19:01,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 02:19:01,590 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 02:19:01,590 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 02:19:01,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:19:01" (1/1) ... [2018-11-10 02:19:01,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:19:01" (1/1) ... [2018-11-10 02:19:01,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:19:01" (1/1) ... [2018-11-10 02:19:01,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:19:01" (1/1) ... [2018-11-10 02:19:01,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:19:01" (1/1) ... [2018-11-10 02:19:01,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:19:01" (1/1) ... [2018-11-10 02:19:01,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:19:01" (1/1) ... [2018-11-10 02:19:01,614 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 02:19:01,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 02:19:01,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 02:19:01,615 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 02:19:01,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:19:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_88af13e4-89ed-46a8-9471-4db5d00a15f8/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 02:19:01,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 02:19:01,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 02:19:01,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-11-10 02:19:01,704 INFO L138 BoogieDeclarations]: Found implementation of procedure getrr [2018-11-10 02:19:01,704 INFO L138 BoogieDeclarations]: Found implementation of procedure getPtr [2018-11-10 02:19:01,704 INFO L138 BoogieDeclarations]: Found implementation of procedure freePtr [2018-11-10 02:19:01,704 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 02:19:01,704 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 02:19:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-11-10 02:19:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2018-11-10 02:19:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 02:19:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-11-10 02:19:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure getrr [2018-11-10 02:19:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 02:19:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 02:19:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure getPtr [2018-11-10 02:19:01,705 INFO L130 BoogieDeclarations]: Found specification of procedure freePtr [2018-11-10 02:19:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 02:19:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 02:19:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 02:19:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 02:19:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 02:19:01,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 02:19:01,851 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 02:19:01,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:19:01 BoogieIcfgContainer [2018-11-10 02:19:01,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 02:19:01,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 02:19:01,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 02:19:01,856 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 02:19:01,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 02:19:01" (1/3) ... [2018-11-10 02:19:01,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e10ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:19:01, skipping insertion in model container [2018-11-10 02:19:01,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:19:01" (2/3) ... [2018-11-10 02:19:01,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69e10ba3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 02:19:01, skipping insertion in model container [2018-11-10 02:19:01,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:19:01" (3/3) ... [2018-11-10 02:19:01,859 INFO L112 eAbstractionObserver]: Analyzing ICFG 1_3_true-termination.c_false-unreach-call.i [2018-11-10 02:19:01,866 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 02:19:01,872 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 02:19:01,883 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 02:19:01,907 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 02:19:01,907 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 02:19:01,908 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 02:19:01,908 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 02:19:01,908 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 02:19:01,908 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 02:19:01,908 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 02:19:01,908 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 02:19:01,908 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 02:19:01,921 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-11-10 02:19:01,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 02:19:01,926 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 02:19:01,927 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, 1, 1, 1, 1, 1, 1] [2018-11-10 02:19:01,928 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 02:19:01,932 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:19:01,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1819378615, now seen corresponding path program 1 times [2018-11-10 02:19:01,934 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 02:19:01,934 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 02:19:01,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:19:01,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:19:01,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:19:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:19:02,187 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 02:19:02,189 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 02:19:02,189 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 02:19:02,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 02:19:02,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 02:19:02,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 02:19:02,203 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 9 states. [2018-11-10 02:19:02,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 02:19:02,341 INFO L93 Difference]: Finished difference Result 60 states and 65 transitions. [2018-11-10 02:19:02,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 02:19:02,342 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-11-10 02:19:02,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 02:19:02,349 INFO L225 Difference]: With dead ends: 60 [2018-11-10 02:19:02,349 INFO L226 Difference]: Without dead ends: 35 [2018-11-10 02:19:02,352 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-11-10 02:19:02,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-10 02:19:02,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-10 02:19:02,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-10 02:19:02,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2018-11-10 02:19:02,387 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 26 [2018-11-10 02:19:02,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 02:19:02,387 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2018-11-10 02:19:02,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 02:19:02,388 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2018-11-10 02:19:02,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-10 02:19:02,389 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 02:19:02,389 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 02:19:02,389 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 02:19:02,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:19:02,390 INFO L82 PathProgramCache]: Analyzing trace with hash -162588479, now seen corresponding path program 1 times [2018-11-10 02:19:02,390 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 02:19:02,390 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 02:19:02,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:19:02,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:19:02,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:19:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:19:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:19:02,450 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 02:19:02,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 02:19:02 BoogieIcfgContainer [2018-11-10 02:19:02,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 02:19:02,479 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 02:19:02,479 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 02:19:02,479 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 02:19:02,479 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:19:01" (3/4) ... [2018-11-10 02:19:02,481 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 02:19:02,514 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_88af13e4-89ed-46a8-9471-4db5d00a15f8/bin-2019/uautomizer/witness.graphml [2018-11-10 02:19:02,514 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 02:19:02,515 INFO L168 Benchmark]: Toolchain (without parser) took 1107.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -109.8 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. [2018-11-10 02:19:02,516 INFO L168 Benchmark]: CDTParser took 0.13 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 02:19:02,517 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.49 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 02:19:02,517 INFO L168 Benchmark]: Boogie Preprocessor took 24.85 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 02:19:02,518 INFO L168 Benchmark]: RCFGBuilder took 237.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-10 02:19:02,518 INFO L168 Benchmark]: TraceAbstraction took 625.43 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: 61.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 11.5 GB. [2018-11-10 02:19:02,519 INFO L168 Benchmark]: Witness Printer took 36.06 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 02:19:02,521 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 180.49 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.85 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 237.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 625.43 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: 61.2 MB). Peak memory consumption was 61.2 MB. Max. memory is 11.5 GB. * Witness Printer took 36.06 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: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L51] rr * ptr1 = 0; VAL [ptr1={0:0}] [L52] CALL, EXPR getPtr() [L38] CALL, EXPR getrr() [L31] EXPR, FCALL malloc(sizeof *r) VAL [malloc(sizeof *r)={6:0}] [L31] rr * r = (rr *)malloc(sizeof *r); VAL [malloc(sizeof *r)={6:0}, r={6:0}] [L32] FCALL r -> state = 0 VAL [malloc(sizeof *r)={6:0}, r={6:0}] [L33] RET return r; VAL [\result={6:0}, malloc(sizeof *r)={6:0}, r={6:0}] [L38] EXPR getrr() VAL [getrr()={6:0}] [L38] rr * r = getrr(); [L39] FCALL r -> state = 1 VAL [r={6:0}] [L40] RET return r; VAL [\result={6:0}, r={6:0}] [L52] EXPR getPtr() VAL [getPtr()={6:0}, ptr1={0:0}] [L52] ptr1 = getPtr() [L53] CALL freePtr(ptr1) VAL [ptr={6:0}] [L45] EXPR, FCALL ptr -> state VAL [ptr={6:0}, ptr={6:0}, ptr -> state=1] [L45] COND TRUE (ptr -> state == 1) ? (0) : __blast_assert () VAL [ptr={6:0}, ptr={6:0}, ptr -> state=1] [L46] RET, FCALL ptr -> state = 2 VAL [ptr={6:0}, ptr={6:0}] [L53] freePtr(ptr1) VAL [ptr1={6:0}] [L55] CALL freePtr(ptr1) VAL [ptr={6:0}] [L45] EXPR, FCALL ptr -> state VAL [ptr={6:0}, ptr={6:0}, ptr -> state=2] [L45] COND FALSE !((ptr -> state == 1) ? (0) : __blast_assert ()) VAL [ptr={6:0}, ptr={6:0}, ptr -> state=2] [L45] CALL __blast_assert () [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 39 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 31 SDtfs, 10 SDslu, 187 SDs, 0 SdLazy, 69 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 1725 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 incorrect! Received shutdown request...