./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b89be727e1b941b152f4b6e505aae7e5221fdd7 ............................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b89be727e1b941b152f4b6e505aae7e5221fdd7 ............................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 00:12:05,621 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:12:05,622 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:12:05,628 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:12:05,628 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:12:05,629 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:12:05,629 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:12:05,630 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:12:05,631 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:12:05,631 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:12:05,632 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:12:05,632 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:12:05,632 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:12:05,633 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:12:05,633 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:12:05,633 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:12:05,634 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:12:05,635 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:12:05,636 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:12:05,636 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:12:05,637 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:12:05,638 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:12:05,639 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:12:05,639 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:12:05,639 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:12:05,639 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:12:05,640 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:12:05,640 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:12:05,640 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:12:05,641 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:12:05,641 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:12:05,641 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:12:05,642 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:12:05,642 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:12:05,642 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:12:05,642 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:12:05,643 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 00:12:05,650 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:12:05,650 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:12:05,650 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 00:12:05,650 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 00:12:05,650 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 00:12:05,651 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 00:12:05,651 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 00:12:05,651 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 00:12:05,651 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 00:12:05,651 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 00:12:05,651 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 00:12:05,651 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 00:12:05,651 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 00:12:05,651 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:12:05,652 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 00:12:05,652 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 00:12:05,652 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 00:12:05,652 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:12:05,652 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 00:12:05,652 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 00:12:05,652 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 00:12:05,652 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 00:12:05,652 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 00:12:05,652 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 00:12:05,652 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:12:05,652 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 00:12:05,652 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 00:12:05,652 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 00:12:05,653 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:12:05,653 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:12:05,653 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 00:12:05,653 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 00:12:05,653 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 00:12:05,653 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 00:12:05,653 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 00:12:05,653 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 00:12:05,653 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan 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 -> Taipan 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 -> 1b89be727e1b941b152f4b6e505aae7e5221fdd7 [2018-12-09 00:12:05,671 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:12:05,680 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:12:05,683 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:12:05,684 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:12:05,684 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:12:05,685 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2018-12-09 00:12:05,731 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/data/4b701c483/d146232b09824f17a413366a21785b3d/FLAGe88f85f04 [2018-12-09 00:12:06,059 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:12:06,059 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2018-12-09 00:12:06,067 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/data/4b701c483/d146232b09824f17a413366a21785b3d/FLAGe88f85f04 [2018-12-09 00:12:06,075 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/data/4b701c483/d146232b09824f17a413366a21785b3d [2018-12-09 00:12:06,077 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:12:06,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:12:06,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:12:06,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:12:06,081 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:12:06,081 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:12:06" (1/1) ... [2018-12-09 00:12:06,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23ef7631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:06, skipping insertion in model container [2018-12-09 00:12:06,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:12:06" (1/1) ... [2018-12-09 00:12:06,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:12:06,108 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:12:06,261 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:12:06,265 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:12:06,318 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:12:06,350 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:12:06,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:06 WrapperNode [2018-12-09 00:12:06,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:12:06,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:12:06,351 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:12:06,351 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:12:06,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:06" (1/1) ... [2018-12-09 00:12:06,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:06" (1/1) ... [2018-12-09 00:12:06,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:12:06,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:12:06,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:12:06,369 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:12:06,374 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:06" (1/1) ... [2018-12-09 00:12:06,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:06" (1/1) ... [2018-12-09 00:12:06,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:06" (1/1) ... [2018-12-09 00:12:06,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:06" (1/1) ... [2018-12-09 00:12:06,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:06" (1/1) ... [2018-12-09 00:12:06,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:06" (1/1) ... [2018-12-09 00:12:06,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:06" (1/1) ... [2018-12-09 00:12:06,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:12:06,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:12:06,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:12:06,381 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:12:06,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:12:06,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 00:12:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure l_read [2018-12-09 00:12:06,411 INFO L138 BoogieDeclarations]: Found implementation of procedure l_read [2018-12-09 00:12:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 00:12:06,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 00:12:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure l_open [2018-12-09 00:12:06,411 INFO L138 BoogieDeclarations]: Found implementation of procedure l_open [2018-12-09 00:12:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 00:12:06,411 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 00:12:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure read [2018-12-09 00:12:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-12-09 00:12:06,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-12-09 00:12:06,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:12:06,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:12:06,522 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:12:06,522 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 00:12:06,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:12:06 BoogieIcfgContainer [2018-12-09 00:12:06,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:12:06,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 00:12:06,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 00:12:06,525 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 00:12:06,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:12:06" (1/3) ... [2018-12-09 00:12:06,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78dbe2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:12:06, skipping insertion in model container [2018-12-09 00:12:06,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:06" (2/3) ... [2018-12-09 00:12:06,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78dbe2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:12:06, skipping insertion in model container [2018-12-09 00:12:06,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:12:06" (3/3) ... [2018-12-09 00:12:06,527 INFO L112 eAbstractionObserver]: Analyzing ICFG fo_test_true-termination.c_false-unreach-call.i [2018-12-09 00:12:06,532 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 00:12:06,536 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 00:12:06,545 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 00:12:06,562 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 00:12:06,562 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 00:12:06,562 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 00:12:06,562 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 00:12:06,562 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 00:12:06,562 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 00:12:06,562 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 00:12:06,562 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 00:12:06,571 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-12-09 00:12:06,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 00:12:06,575 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:12:06,575 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:12:06,577 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:12:06,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:12:06,580 INFO L82 PathProgramCache]: Analyzing trace with hash -347422697, now seen corresponding path program 1 times [2018-12-09 00:12:06,581 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:12:06,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:12:06,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:12:06,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:12:06,609 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:12:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:12:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:12:06,671 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 00:12:06,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:12:06 BoogieIcfgContainer [2018-12-09 00:12:06,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 00:12:06,691 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 00:12:06,691 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 00:12:06,692 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 00:12:06,692 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:12:06" (3/4) ... [2018-12-09 00:12:06,694 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 00:12:06,694 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 00:12:06,694 INFO L168 Benchmark]: Toolchain (without parser) took 616.95 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -115.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:12:06,695 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:12:06,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -147.8 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-12-09 00:12:06,696 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:12:06,696 INFO L168 Benchmark]: Boogie Preprocessor took 11.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:12:06,697 INFO L168 Benchmark]: RCFGBuilder took 142.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2018-12-09 00:12:06,697 INFO L168 Benchmark]: TraceAbstraction took 168.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-09 00:12:06,697 INFO L168 Benchmark]: Witness Printer took 2.68 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:12:06,699 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 272.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -147.8 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 142.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 168.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.68 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 960]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 1158. Possible FailurePath: [L1152] int globalState = 0; [L1158] CALL, EXPR l_open("unknown",00) VAL [\old(flags)=0, \old(globalState)=0, file={1:0}, globalState=0] [L1170] int fd = open(file,flags); VAL [\old(flags)=0, \old(globalState)=0, fd=0, file={1:0}, file={1:0}, flags=0, globalState=0, open(file,flags)=0] [L1171] COND FALSE !(fd>0) VAL [\old(flags)=0, \old(globalState)=0, fd=0, file={1:0}, file={1:0}, flags=0, globalState=0, open(file,flags)=0] [L1172] return fd; VAL [\old(flags)=0, \old(globalState)=0, \result=0, fd=0, file={1:0}, file={1:0}, flags=0, globalState=0, open(file,flags)=0] [L1158] RET, EXPR l_open("unknown",00) VAL [\old(argc)=108, \old(globalState)=0, argc=108, argv={105:103}, argv={105:103}, globalState=0, l_open("unknown",00)=0] [L1158] int file = l_open("unknown",00); [L1159] void* cbuf = (void*) malloc(sizeof(char)*100); VAL [\old(argc)=108, \old(globalState)=0, argc=108, argv={105:103}, argv={105:103}, cbuf={109:0}, file=0, globalState=0, malloc(sizeof(char)*100)={109:0}] [L1160] CALL l_read(file,cbuf,99) VAL [\old(count)=99, \old(fd)=0, \old(globalState)=0, cbuf={109:0}, globalState=0] [L1165] (globalState == 1) ? (0) : __blast_assert () VAL [\old(count)=99, \old(fd)=0, \old(globalState)=0, cbuf={109:0}, cbuf={109:0}, count=99, fd=0, globalState=0] [L1165] CALL __blast_assert () VAL [\old(globalState)=0, globalState=0] [L960] __VERIFIER_error() VAL [\old(globalState)=0, globalState=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 00:12:08,011 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:12:08,012 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:12:08,018 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:12:08,019 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:12:08,019 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:12:08,020 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:12:08,020 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:12:08,021 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:12:08,022 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:12:08,022 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:12:08,022 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:12:08,023 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:12:08,023 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:12:08,024 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:12:08,024 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:12:08,024 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:12:08,025 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:12:08,026 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:12:08,027 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:12:08,027 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:12:08,028 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:12:08,029 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:12:08,029 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:12:08,029 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:12:08,030 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:12:08,030 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:12:08,030 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:12:08,031 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:12:08,031 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:12:08,031 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:12:08,032 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:12:08,032 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:12:08,032 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:12:08,032 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:12:08,033 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:12:08,033 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 00:12:08,040 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:12:08,040 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:12:08,041 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 00:12:08,041 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 00:12:08,041 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 00:12:08,041 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 00:12:08,041 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 00:12:08,041 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 00:12:08,041 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 00:12:08,041 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 00:12:08,042 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:12:08,042 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 00:12:08,042 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 00:12:08,042 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:12:08,042 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 00:12:08,042 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 00:12:08,042 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 00:12:08,042 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 00:12:08,043 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 00:12:08,043 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 00:12:08,043 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 00:12:08,043 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 00:12:08,043 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 00:12:08,043 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:12:08,043 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 00:12:08,043 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 00:12:08,043 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 00:12:08,043 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:12:08,044 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:12:08,044 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 00:12:08,044 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 00:12:08,044 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 00:12:08,044 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 00:12:08,044 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 00:12:08,044 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 00:12:08,044 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_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan 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 -> Taipan 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 -> 1b89be727e1b941b152f4b6e505aae7e5221fdd7 [2018-12-09 00:12:08,062 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:12:08,072 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:12:08,074 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:12:08,075 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:12:08,076 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:12:08,076 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/../../sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2018-12-09 00:12:08,116 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/data/411649eb2/929de78c01434006ac43602132597745/FLAG083078f14 [2018-12-09 00:12:08,546 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:12:08,546 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/sv-benchmarks/c/ldv-regression/fo_test_true-termination.c_false-unreach-call.i [2018-12-09 00:12:08,553 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/data/411649eb2/929de78c01434006ac43602132597745/FLAG083078f14 [2018-12-09 00:12:08,561 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/data/411649eb2/929de78c01434006ac43602132597745 [2018-12-09 00:12:08,563 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:12:08,563 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:12:08,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:12:08,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:12:08,566 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:12:08,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:12:08" (1/1) ... [2018-12-09 00:12:08,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f9983a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:08, skipping insertion in model container [2018-12-09 00:12:08,568 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:12:08" (1/1) ... [2018-12-09 00:12:08,572 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:12:08,592 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:12:08,749 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:12:08,755 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:12:08,777 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:12:08,842 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:12:08,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:08 WrapperNode [2018-12-09 00:12:08,843 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:12:08,843 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:12:08,844 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:12:08,844 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:12:08,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:08" (1/1) ... [2018-12-09 00:12:08,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:08" (1/1) ... [2018-12-09 00:12:08,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:12:08,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:12:08,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:12:08,865 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:12:08,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:08" (1/1) ... [2018-12-09 00:12:08,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:08" (1/1) ... [2018-12-09 00:12:08,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:08" (1/1) ... [2018-12-09 00:12:08,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:08" (1/1) ... [2018-12-09 00:12:08,875 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:08" (1/1) ... [2018-12-09 00:12:08,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:08" (1/1) ... [2018-12-09 00:12:08,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:08" (1/1) ... [2018-12-09 00:12:08,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:12:08,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:12:08,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:12:08,879 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:12:08,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:12:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 00:12:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure l_read [2018-12-09 00:12:08,909 INFO L138 BoogieDeclarations]: Found implementation of procedure l_read [2018-12-09 00:12:08,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 00:12:08,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 00:12:08,910 INFO L130 BoogieDeclarations]: Found specification of procedure l_open [2018-12-09 00:12:08,910 INFO L138 BoogieDeclarations]: Found implementation of procedure l_open [2018-12-09 00:12:08,910 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 00:12:08,910 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 00:12:08,910 INFO L130 BoogieDeclarations]: Found specification of procedure read [2018-12-09 00:12:08,910 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-12-09 00:12:08,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-12-09 00:12:08,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:12:08,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:12:09,019 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:12:09,019 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-09 00:12:09,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:12:09 BoogieIcfgContainer [2018-12-09 00:12:09,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:12:09,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 00:12:09,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 00:12:09,022 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 00:12:09,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:12:08" (1/3) ... [2018-12-09 00:12:09,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b100f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:12:09, skipping insertion in model container [2018-12-09 00:12:09,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:08" (2/3) ... [2018-12-09 00:12:09,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b100f21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:12:09, skipping insertion in model container [2018-12-09 00:12:09,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:12:09" (3/3) ... [2018-12-09 00:12:09,024 INFO L112 eAbstractionObserver]: Analyzing ICFG fo_test_true-termination.c_false-unreach-call.i [2018-12-09 00:12:09,030 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 00:12:09,034 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 00:12:09,042 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 00:12:09,058 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 00:12:09,059 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 00:12:09,059 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 00:12:09,059 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 00:12:09,059 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 00:12:09,059 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 00:12:09,059 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 00:12:09,059 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 00:12:09,059 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 00:12:09,069 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-12-09 00:12:09,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 00:12:09,073 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:12:09,074 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:12:09,075 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:12:09,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:12:09,078 INFO L82 PathProgramCache]: Analyzing trace with hash -347422697, now seen corresponding path program 1 times [2018-12-09 00:12:09,081 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-09 00:12:09,081 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1f9797ae-d234-4511-9f9f-cb0fa420e008/bin-2019/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-09 00:12:09,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:12:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:12:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:12:09,211 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 00:12:09,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:12:09 BoogieIcfgContainer [2018-12-09 00:12:09,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 00:12:09,241 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 00:12:09,241 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 00:12:09,242 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 00:12:09,242 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:12:09" (3/4) ... [2018-12-09 00:12:09,245 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 00:12:09,245 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 00:12:09,246 INFO L168 Benchmark]: Toolchain (without parser) took 682.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -130.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 11.5 GB. [2018-12-09 00:12:09,247 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:12:09,248 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -195.0 MB). Peak memory consumption was 43.9 MB. Max. memory is 11.5 GB. [2018-12-09 00:12:09,248 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.80 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-09 00:12:09,249 INFO L168 Benchmark]: Boogie Preprocessor took 14.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:12:09,249 INFO L168 Benchmark]: RCFGBuilder took 140.74 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-12-09 00:12:09,250 INFO L168 Benchmark]: TraceAbstraction took 220.94 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: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. [2018-12-09 00:12:09,250 INFO L168 Benchmark]: Witness Printer took 4.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:12:09,253 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 278.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -195.0 MB). Peak memory consumption was 43.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.80 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 140.74 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 220.94 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: 39.5 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.04 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 960]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 1158. Possible FailurePath: [L1152] int globalState = 0; [L1158] CALL, EXPR l_open("unknown",00) VAL [\old(flags)=0, \old(globalState)=0, file={3:0}, globalState=0] [L1170] int fd = open(file,flags); VAL [\old(flags)=0, \old(globalState)=0, fd=0, file={3:0}, file={3:0}, flags=0, globalState=0, open(file,flags)=0] [L1171] COND FALSE !(fd>0) VAL [\old(flags)=0, \old(globalState)=0, fd=0, file={3:0}, file={3:0}, flags=0, globalState=0, open(file,flags)=0] [L1172] return fd; VAL [\old(flags)=0, \old(globalState)=0, \result=0, fd=0, file={3:0}, file={3:0}, flags=0, globalState=0, open(file,flags)=0] [L1158] RET, EXPR l_open("unknown",00) VAL [\old(argc)=0, \old(globalState)=0, argc=0, argv={0:0}, argv={0:0}, globalState=0, l_open("unknown",00)=0] [L1158] int file = l_open("unknown",00); [L1159] void* cbuf = (void*) malloc(sizeof(char)*100); VAL [\old(argc)=0, \old(globalState)=0, argc=0, argv={0:0}, argv={0:0}, cbuf={1:0}, file=0, globalState=0, malloc(sizeof(char)*100)={1:0}] [L1160] CALL l_read(file,cbuf,99) VAL [\old(count)=99, \old(fd)=0, \old(globalState)=0, cbuf={1:0}, globalState=0] [L1165] (globalState == 1) ? (0) : __blast_assert () VAL [\old(count)=99, \old(fd)=0, \old(globalState)=0, cbuf={1:0}, cbuf={1:0}, count=99, fd=0, globalState=0] [L1165] CALL __blast_assert () VAL [\old(globalState)=0, globalState=0] [L960] __VERIFIER_error() VAL [\old(globalState)=0, globalState=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...