./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/locks/test_locks_14_false-unreach-call_true-valid-memsafety_false-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_33be3b35-6411-4784-867b-6629804ddb93/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_33be3b35-6411-4784-867b-6629804ddb93/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_33be3b35-6411-4784-867b-6629804ddb93/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_33be3b35-6411-4784-867b-6629804ddb93/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/locks/test_locks_14_false-unreach-call_true-valid-memsafety_false-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_33be3b35-6411-4784-867b-6629804ddb93/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_33be3b35-6411-4784-867b-6629804ddb93/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 4c4a63b42b00dbfea9a5b040626d99ec84a4e61b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.23-5842f4b [2018-11-18 11:23:15,716 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:23:15,717 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:23:15,728 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:23:15,728 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:23:15,729 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:23:15,730 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:23:15,732 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:23:15,733 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:23:15,734 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:23:15,735 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:23:15,735 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:23:15,736 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:23:15,737 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:23:15,738 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:23:15,739 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:23:15,739 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:23:15,741 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:23:15,743 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:23:15,744 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:23:15,745 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:23:15,746 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:23:15,748 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:23:15,748 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:23:15,749 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:23:15,749 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:23:15,751 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:23:15,751 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:23:15,752 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:23:15,753 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:23:15,753 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:23:15,754 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:23:15,754 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:23:15,755 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:23:15,755 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:23:15,756 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:23:15,756 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_33be3b35-6411-4784-867b-6629804ddb93/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 11:23:15,768 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:23:15,768 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:23:15,769 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:23:15,769 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 11:23:15,769 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 11:23:15,770 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 11:23:15,770 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 11:23:15,770 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 11:23:15,770 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 11:23:15,770 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 11:23:15,770 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 11:23:15,770 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 11:23:15,771 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 11:23:15,771 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:23:15,771 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:23:15,771 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:23:15,771 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:23:15,772 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:23:15,772 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:23:15,772 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:23:15,772 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:23:15,772 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:23:15,772 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:23:15,772 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:23:15,772 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:23:15,773 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:23:15,773 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:23:15,773 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:23:15,773 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:23:15,773 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:23:15,773 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:23:15,773 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:23:15,774 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:23:15,774 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 11:23:15,774 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:23:15,774 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:23:15,774 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 11:23:15,774 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_33be3b35-6411-4784-867b-6629804ddb93/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 -> 4c4a63b42b00dbfea9a5b040626d99ec84a4e61b [2018-11-18 11:23:15,800 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:23:15,814 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:23:15,817 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:23:15,818 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:23:15,818 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:23:15,819 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_33be3b35-6411-4784-867b-6629804ddb93/bin-2019/utaipan/../../sv-benchmarks/c/locks/test_locks_14_false-unreach-call_true-valid-memsafety_false-termination.c [2018-11-18 11:23:15,867 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_33be3b35-6411-4784-867b-6629804ddb93/bin-2019/utaipan/data/45a778538/0893bff80d5e483fba0641796ade733f/FLAG78ddc93d7 [2018-11-18 11:23:16,204 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:23:16,204 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_33be3b35-6411-4784-867b-6629804ddb93/sv-benchmarks/c/locks/test_locks_14_false-unreach-call_true-valid-memsafety_false-termination.c [2018-11-18 11:23:16,209 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_33be3b35-6411-4784-867b-6629804ddb93/bin-2019/utaipan/data/45a778538/0893bff80d5e483fba0641796ade733f/FLAG78ddc93d7 [2018-11-18 11:23:16,220 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_33be3b35-6411-4784-867b-6629804ddb93/bin-2019/utaipan/data/45a778538/0893bff80d5e483fba0641796ade733f [2018-11-18 11:23:16,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:23:16,224 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:23:16,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:23:16,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:23:16,227 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:23:16,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:23:16" (1/1) ... [2018-11-18 11:23:16,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6654e84b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:16, skipping insertion in model container [2018-11-18 11:23:16,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:23:16" (1/1) ... [2018-11-18 11:23:16,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:23:16,255 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:23:16,404 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:23:16,406 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:23:16,429 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:23:16,441 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:23:16,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:16 WrapperNode [2018-11-18 11:23:16,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:23:16,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:23:16,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:23:16,443 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:23:16,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:16" (1/1) ... [2018-11-18 11:23:16,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:16" (1/1) ... [2018-11-18 11:23:16,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:23:16,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:23:16,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:23:16,466 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:23:16,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:16" (1/1) ... [2018-11-18 11:23:16,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:16" (1/1) ... [2018-11-18 11:23:16,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:16" (1/1) ... [2018-11-18 11:23:16,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:16" (1/1) ... [2018-11-18 11:23:16,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:16" (1/1) ... [2018-11-18 11:23:16,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:16" (1/1) ... [2018-11-18 11:23:16,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:16" (1/1) ... [2018-11-18 11:23:16,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:23:16,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:23:16,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:23:16,537 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:23:16,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_33be3b35-6411-4784-867b-6629804ddb93/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 [2018-11-18 11:23:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:23:16,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:23:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:23:16,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:23:16,581 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:23:16,581 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:23:17,003 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:23:17,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:17 BoogieIcfgContainer [2018-11-18 11:23:17,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:23:17,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:23:17,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:23:17,008 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:23:17,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:23:16" (1/3) ... [2018-11-18 11:23:17,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263de102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:23:17, skipping insertion in model container [2018-11-18 11:23:17,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:23:16" (2/3) ... [2018-11-18 11:23:17,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@263de102 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:23:17, skipping insertion in model container [2018-11-18 11:23:17,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:17" (3/3) ... [2018-11-18 11:23:17,011 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_14_false-unreach-call_true-valid-memsafety_false-termination.c [2018-11-18 11:23:17,021 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:23:17,028 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:23:17,046 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:23:17,075 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:23:17,076 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:23:17,076 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:23:17,076 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:23:17,076 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:23:17,076 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:23:17,076 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:23:17,076 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:23:17,095 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2018-11-18 11:23:17,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 11:23:17,102 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:23:17,102 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] [2018-11-18 11:23:17,104 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:23:17,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:23:17,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1553022195, now seen corresponding path program 1 times [2018-11-18 11:23:17,116 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:23:17,158 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:17,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:23:17,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:17,159 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:23:17,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:23:17,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:23:17,284 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:23:17,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:23:17,285 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:23:17,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:23:17,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:23:17,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:23:17,302 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 3 states. [2018-11-18 11:23:17,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:23:17,375 INFO L93 Difference]: Finished difference Result 158 states and 290 transitions. [2018-11-18 11:23:17,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:23:17,376 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-18 11:23:17,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:23:17,384 INFO L225 Difference]: With dead ends: 158 [2018-11-18 11:23:17,384 INFO L226 Difference]: Without dead ends: 98 [2018-11-18 11:23:17,386 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:23:17,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-11-18 11:23:17,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2018-11-18 11:23:17,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-11-18 11:23:17,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 176 transitions. [2018-11-18 11:23:17,417 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 176 transitions. Word has length 25 [2018-11-18 11:23:17,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:23:17,417 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 176 transitions. [2018-11-18 11:23:17,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:23:17,417 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 176 transitions. [2018-11-18 11:23:17,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 11:23:17,423 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:23:17,423 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] [2018-11-18 11:23:17,423 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:23:17,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:23:17,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1553015003, now seen corresponding path program 1 times [2018-11-18 11:23:17,423 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:23:17,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:17,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:23:17,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:17,425 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:23:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:23:17,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:23:17,487 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:23:17,488 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:23:17,488 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:23:17,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:23:17,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:23:17,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:23:17,490 INFO L87 Difference]: Start difference. First operand 96 states and 176 transitions. Second operand 3 states. [2018-11-18 11:23:17,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:23:17,524 INFO L93 Difference]: Finished difference Result 99 states and 179 transitions. [2018-11-18 11:23:17,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:23:17,525 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-18 11:23:17,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:23:17,526 INFO L225 Difference]: With dead ends: 99 [2018-11-18 11:23:17,526 INFO L226 Difference]: Without dead ends: 97 [2018-11-18 11:23:17,527 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:23:17,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-11-18 11:23:17,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2018-11-18 11:23:17,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2018-11-18 11:23:17,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 177 transitions. [2018-11-18 11:23:17,535 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 177 transitions. Word has length 25 [2018-11-18 11:23:17,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:23:17,535 INFO L480 AbstractCegarLoop]: Abstraction has 97 states and 177 transitions. [2018-11-18 11:23:17,535 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:23:17,536 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 177 transitions. [2018-11-18 11:23:17,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 11:23:17,536 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:23:17,536 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] [2018-11-18 11:23:17,537 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:23:17,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:23:17,537 INFO L82 PathProgramCache]: Analyzing trace with hash -35325707, now seen corresponding path program 1 times [2018-11-18 11:23:17,537 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:23:17,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:17,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:23:17,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:17,538 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:23:17,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:23:17,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:23:17,584 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:23:17,584 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:23:17,584 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:23:17,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:23:17,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:23:17,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:23:17,585 INFO L87 Difference]: Start difference. First operand 97 states and 177 transitions. Second operand 3 states. [2018-11-18 11:23:17,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:23:17,616 INFO L93 Difference]: Finished difference Result 227 states and 417 transitions. [2018-11-18 11:23:17,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:23:17,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-18 11:23:17,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:23:17,617 INFO L225 Difference]: With dead ends: 227 [2018-11-18 11:23:17,617 INFO L226 Difference]: Without dead ends: 135 [2018-11-18 11:23:17,618 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:23:17,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2018-11-18 11:23:17,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2018-11-18 11:23:17,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2018-11-18 11:23:17,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 240 transitions. [2018-11-18 11:23:17,627 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 240 transitions. Word has length 25 [2018-11-18 11:23:17,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:23:17,627 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 240 transitions. [2018-11-18 11:23:17,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:23:17,627 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 240 transitions. [2018-11-18 11:23:17,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 11:23:17,628 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:23:17,628 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] [2018-11-18 11:23:17,628 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:23:17,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:23:17,629 INFO L82 PathProgramCache]: Analyzing trace with hash -35332899, now seen corresponding path program 1 times [2018-11-18 11:23:17,629 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:23:17,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:17,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:23:17,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:17,630 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:23:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:23:17,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:23:17,671 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:23:17,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:23:17,672 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:23:17,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:23:17,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:23:17,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:23:17,672 INFO L87 Difference]: Start difference. First operand 133 states and 240 transitions. Second operand 3 states. [2018-11-18 11:23:17,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:23:17,744 INFO L93 Difference]: Finished difference Result 183 states and 326 transitions. [2018-11-18 11:23:17,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:23:17,745 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-18 11:23:17,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:23:17,746 INFO L225 Difference]: With dead ends: 183 [2018-11-18 11:23:17,746 INFO L226 Difference]: Without dead ends: 133 [2018-11-18 11:23:17,747 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:23:17,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-11-18 11:23:17,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2018-11-18 11:23:17,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-11-18 11:23:17,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 233 transitions. [2018-11-18 11:23:17,756 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 233 transitions. Word has length 25 [2018-11-18 11:23:17,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:23:17,756 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 233 transitions. [2018-11-18 11:23:17,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:23:17,756 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 233 transitions. [2018-11-18 11:23:17,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 11:23:17,757 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:23:17,757 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] [2018-11-18 11:23:17,758 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:23:17,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:23:17,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1056394061, now seen corresponding path program 1 times [2018-11-18 11:23:17,758 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:23:17,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:17,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:23:17,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:23:17,759 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:23:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:23:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:23:17,829 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 11:23:17,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:23:17 BoogieIcfgContainer [2018-11-18 11:23:17,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 11:23:17,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:23:17,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:23:17,870 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:23:17,870 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:23:17" (3/4) ... [2018-11-18 11:23:17,872 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 11:23:17,927 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_33be3b35-6411-4784-867b-6629804ddb93/bin-2019/utaipan/witness.graphml [2018-11-18 11:23:17,927 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:23:17,928 INFO L168 Benchmark]: Toolchain (without parser) took 1705.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 959.6 MB in the beginning and 1.0 GB in the end (delta: -88.6 MB). Peak memory consumption was 58.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:23:17,929 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:23:17,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 217.73 ms. Allocated memory is still 1.0 GB. Free memory was 959.6 MB in the beginning and 946.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:23:17,929 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.99 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:23:17,930 INFO L168 Benchmark]: Boogie Preprocessor took 70.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -198.6 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:23:17,930 INFO L168 Benchmark]: RCFGBuilder took 467.42 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: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2018-11-18 11:23:17,930 INFO L168 Benchmark]: TraceAbstraction took 864.82 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: 60.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 11.5 GB. [2018-11-18 11:23:17,930 INFO L168 Benchmark]: Witness Printer took 57.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:23:17,932 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 217.73 ms. Allocated memory is still 1.0 GB. Free memory was 959.6 MB in the beginning and 946.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.99 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 70.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -198.6 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 467.42 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: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 864.82 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: 60.1 MB). Peak memory consumption was 60.1 MB. Max. memory is 11.5 GB. * Witness Printer took 57.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 217]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L6] int p1 = __VERIFIER_nondet_int(); [L7] int lk1; [L9] int p2 = __VERIFIER_nondet_int(); [L10] int lk2; [L12] int p3 = __VERIFIER_nondet_int(); [L13] int lk3; [L15] int p4 = __VERIFIER_nondet_int(); [L16] int lk4; [L18] int p5 = __VERIFIER_nondet_int(); [L19] int lk5; [L21] int p6 = __VERIFIER_nondet_int(); [L22] int lk6; [L24] int p7 = __VERIFIER_nondet_int(); [L25] int lk7; [L27] int p8 = __VERIFIER_nondet_int(); [L28] int lk8; [L30] int p9 = __VERIFIER_nondet_int(); [L31] int lk9; [L33] int p10 = __VERIFIER_nondet_int(); [L34] int lk10; [L36] int p11 = __VERIFIER_nondet_int(); [L37] int lk11; [L39] int p12 = __VERIFIER_nondet_int(); [L40] int lk12; [L42] int p13 = __VERIFIER_nondet_int(); [L43] int lk13; [L45] int p14 = __VERIFIER_nondet_int(); [L46] int lk14; [L49] int cond; VAL [p1=0, p10=1, p11=1, p12=3, p13=0, p14=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L51] COND TRUE 1 [L52] cond = __VERIFIER_nondet_int() [L53] COND FALSE !(cond == 0) [L56] lk1 = 0 [L58] lk2 = 0 [L60] lk3 = 0 [L62] lk4 = 0 [L64] lk5 = 0 [L66] lk6 = 0 [L68] lk7 = 0 [L70] lk8 = 0 [L72] lk9 = 0 [L74] lk10 = 0 [L76] lk11 = 0 [L78] lk12 = 0 [L80] lk13 = 0 [L82] lk14 = 0 VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=3, p13=0, p14=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L86] COND FALSE !(p1 != 0) VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=3, p13=0, p14=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L90] COND FALSE !(p2 != 0) VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=3, p13=0, p14=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L94] COND TRUE p3 != 0 [L95] lk3 = 1 VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=3, p13=0, p14=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L98] COND TRUE p4 != 0 [L99] lk4 = 1 VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=3, p13=0, p14=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L102] COND FALSE !(p5 != 0) VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=3, p13=0, p14=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L106] COND TRUE p6 != 0 [L107] lk6 = 1 VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=3, p13=0, p14=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L110] COND TRUE p7 != 0 [L111] lk7 = 1 VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p10=1, p11=1, p12=3, p13=0, p14=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L114] COND TRUE p8 != 0 [L115] lk8 = 1 VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p10=1, p11=1, p12=3, p13=0, p14=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L118] COND TRUE p9 != 0 [L119] lk9 = 1 VAL [cond=3, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=1, p12=3, p13=0, p14=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L122] COND TRUE p10 != 0 [L123] lk10 = 1 VAL [cond=3, lk1=0, lk10=1, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=1, p12=3, p13=0, p14=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L126] COND TRUE p11 != 0 [L127] lk11 = 1 VAL [cond=3, lk1=0, lk10=1, lk11=1, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=1, p12=3, p13=0, p14=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L130] COND TRUE p12 != 0 [L131] lk12 = 1 VAL [cond=3, lk1=0, lk10=1, lk11=1, lk12=1, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=1, p12=3, p13=0, p14=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L134] COND FALSE !(p13 != 0) VAL [cond=3, lk1=0, lk10=1, lk11=1, lk12=1, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=1, p12=3, p13=0, p14=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L138] COND TRUE p14 != 0 [L139] lk14 = 1 VAL [cond=3, lk1=0, lk10=1, lk11=1, lk12=1, lk13=0, lk14=1, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=1, p12=3, p13=0, p14=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L144] COND FALSE !(p1 != 0) VAL [cond=3, lk1=0, lk10=1, lk11=1, lk12=1, lk13=0, lk14=1, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=1, p12=3, p13=0, p14=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L149] COND FALSE !(p2 != 0) VAL [cond=3, lk1=0, lk10=1, lk11=1, lk12=1, lk13=0, lk14=1, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=1, p12=3, p13=0, p14=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] [L217] __VERIFIER_error() VAL [cond=3, lk1=0, lk10=1, lk11=1, lk12=1, lk13=0, lk14=1, lk2=0, lk3=1, lk4=1, lk5=0, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=1, p11=1, p12=3, p13=0, p14=3, p2=0, p3=1, p4=1, p5=0, p6=1, p7=1, p8=1, p9=3] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 57 locations, 1 error locations. UNSAFE Result, 0.8s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 465 SDtfs, 230 SDslu, 305 SDs, 0 SdLazy, 20 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred in iteration=3, 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, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 5712 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...