./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/systemc/pc_sfifo_1_false-unreach-call_false-termination.cil.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_75b69fd5-10e0-47c6-ae8e-ac2b21e8e49e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_75b69fd5-10e0-47c6-ae8e-ac2b21e8e49e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_75b69fd5-10e0-47c6-ae8e-ac2b21e8e49e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_75b69fd5-10e0-47c6-ae8e-ac2b21e8e49e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/systemc/pc_sfifo_1_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_75b69fd5-10e0-47c6-ae8e-ac2b21e8e49e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_75b69fd5-10e0-47c6-ae8e-ac2b21e8e49e/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 375e158327910cae8c3594f7d2ad0376509a1ecb ..................................................................................................................................................................................................................................................................................................................................... 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 17:32:17,525 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:32:17,526 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:32:17,534 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:32:17,534 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:32:17,535 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:32:17,536 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:32:17,537 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:32:17,538 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:32:17,539 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:32:17,540 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:32:17,540 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:32:17,540 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:32:17,545 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:32:17,546 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:32:17,546 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:32:17,547 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:32:17,548 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:32:17,549 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:32:17,550 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:32:17,550 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:32:17,551 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:32:17,552 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:32:17,552 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:32:17,552 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:32:17,557 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:32:17,558 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:32:17,558 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:32:17,559 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:32:17,560 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:32:17,560 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:32:17,560 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:32:17,560 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:32:17,561 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:32:17,562 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:32:17,563 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:32:17,563 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_75b69fd5-10e0-47c6-ae8e-ac2b21e8e49e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 17:32:17,573 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:32:17,574 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:32:17,574 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:32:17,574 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:32:17,574 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:32:17,574 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:32:17,575 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:32:17,575 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 17:32:17,575 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:32:17,575 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:32:17,575 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 17:32:17,575 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 17:32:17,575 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:32:17,575 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:32:17,576 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:32:17,576 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:32:17,576 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:32:17,576 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:32:17,576 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:32:17,576 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:32:17,576 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:32:17,576 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:32:17,576 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:32:17,577 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:32:17,577 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:32:17,577 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:32:17,577 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:32:17,577 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:32:17,577 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:32:17,577 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:32:17,577 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:32:17,578 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:32:17,578 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:32:17,578 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 17:32:17,578 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:32:17,578 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:32:17,578 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 17:32:17,578 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_75b69fd5-10e0-47c6-ae8e-ac2b21e8e49e/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 -> 375e158327910cae8c3594f7d2ad0376509a1ecb [2018-11-18 17:32:17,604 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:32:17,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:32:17,615 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:32:17,616 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:32:17,617 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:32:17,618 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_75b69fd5-10e0-47c6-ae8e-ac2b21e8e49e/bin-2019/utaipan/../../sv-benchmarks/c/systemc/pc_sfifo_1_false-unreach-call_false-termination.cil.c [2018-11-18 17:32:17,663 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_75b69fd5-10e0-47c6-ae8e-ac2b21e8e49e/bin-2019/utaipan/data/dae54de17/e3310d3c7d8d466597f1d271228c4aab/FLAGf002eca28 [2018-11-18 17:32:18,093 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:32:18,093 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_75b69fd5-10e0-47c6-ae8e-ac2b21e8e49e/sv-benchmarks/c/systemc/pc_sfifo_1_false-unreach-call_false-termination.cil.c [2018-11-18 17:32:18,101 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_75b69fd5-10e0-47c6-ae8e-ac2b21e8e49e/bin-2019/utaipan/data/dae54de17/e3310d3c7d8d466597f1d271228c4aab/FLAGf002eca28 [2018-11-18 17:32:18,504 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_75b69fd5-10e0-47c6-ae8e-ac2b21e8e49e/bin-2019/utaipan/data/dae54de17/e3310d3c7d8d466597f1d271228c4aab [2018-11-18 17:32:18,507 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:32:18,510 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:32:18,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:32:18,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:32:18,515 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:32:18,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:32:18" (1/1) ... [2018-11-18 17:32:18,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e66ea76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:18, skipping insertion in model container [2018-11-18 17:32:18,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:32:18" (1/1) ... [2018-11-18 17:32:18,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:32:18,563 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:32:18,817 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:32:18,822 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:32:18,909 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:32:18,944 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:32:18,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:18 WrapperNode [2018-11-18 17:32:18,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:32:18,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:32:18,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:32:18,954 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:32:18,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:18" (1/1) ... [2018-11-18 17:32:18,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:18" (1/1) ... [2018-11-18 17:32:18,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:32:18,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:32:18,998 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:32:18,998 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:32:19,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:18" (1/1) ... [2018-11-18 17:32:19,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:18" (1/1) ... [2018-11-18 17:32:19,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:18" (1/1) ... [2018-11-18 17:32:19,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:18" (1/1) ... [2018-11-18 17:32:19,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:18" (1/1) ... [2018-11-18 17:32:19,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:18" (1/1) ... [2018-11-18 17:32:19,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:18" (1/1) ... [2018-11-18 17:32:19,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:32:19,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:32:19,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:32:19,049 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:32:19,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_75b69fd5-10e0-47c6-ae8e-ac2b21e8e49e/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 17:32:19,479 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2018-11-18 17:32:19,479 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2018-11-18 17:32:19,479 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2018-11-18 17:32:19,480 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2018-11-18 17:32:19,480 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:32:19,480 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:32:19,480 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2018-11-18 17:32:19,480 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2018-11-18 17:32:19,480 INFO L130 BoogieDeclarations]: Found specification of procedure error [2018-11-18 17:32:19,480 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2018-11-18 17:32:19,489 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2018-11-18 17:32:19,489 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2018-11-18 17:32:19,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:32:19,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:32:19,489 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2018-11-18 17:32:19,489 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2018-11-18 17:32:19,489 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2018-11-18 17:32:19,490 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2018-11-18 17:32:19,490 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2018-11-18 17:32:19,490 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2018-11-18 17:32:19,490 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2018-11-18 17:32:19,490 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2018-11-18 17:32:19,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:32:19,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:32:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2018-11-18 17:32:19,491 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2018-11-18 17:32:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2018-11-18 17:32:19,491 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2018-11-18 17:32:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2018-11-18 17:32:19,491 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2018-11-18 17:32:20,546 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:32:20,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:32:20 BoogieIcfgContainer [2018-11-18 17:32:20,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:32:20,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:32:20,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:32:20,549 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:32:20,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:32:18" (1/3) ... [2018-11-18 17:32:20,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f6c122f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:32:20, skipping insertion in model container [2018-11-18 17:32:20,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:32:18" (2/3) ... [2018-11-18 17:32:20,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f6c122f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:32:20, skipping insertion in model container [2018-11-18 17:32:20,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:32:20" (3/3) ... [2018-11-18 17:32:20,552 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1_false-unreach-call_false-termination.cil.c [2018-11-18 17:32:20,562 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:32:20,569 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:32:20,581 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:32:20,604 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:32:20,604 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:32:20,604 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:32:20,604 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:32:20,604 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:32:20,604 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:32:20,604 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:32:20,605 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:32:20,623 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states. [2018-11-18 17:32:20,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 17:32:20,628 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:32:20,628 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:32:20,630 INFO L423 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:32:20,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:32:20,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1202276050, now seen corresponding path program 1 times [2018-11-18 17:32:20,636 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:32:20,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:32:20,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:32:20,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:32:20,667 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:32:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:32:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:32:20,801 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 17:32:20,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:32:20 BoogieIcfgContainer [2018-11-18 17:32:20,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:32:20,847 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:32:20,847 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:32:20,847 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:32:20,848 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:32:20" (3/4) ... [2018-11-18 17:32:20,849 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 17:32:20,934 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_75b69fd5-10e0-47c6-ae8e-ac2b21e8e49e/bin-2019/utaipan/witness.graphml [2018-11-18 17:32:20,934 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:32:20,935 INFO L168 Benchmark]: Toolchain (without parser) took 2426.12 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 959.7 MB in the beginning and 1.0 GB in the end (delta: -70.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:32:20,936 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 17:32:20,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 442.63 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 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 17:32:20,939 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.60 ms. Allocated memory is still 1.0 GB. Free memory was 946.2 MB in the beginning and 943.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:32:20,940 INFO L168 Benchmark]: Boogie Preprocessor took 51.24 ms. Allocated memory is still 1.0 GB. Free memory is still 943.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:32:20,940 INFO L168 Benchmark]: RCFGBuilder took 1497.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -113.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-11-18 17:32:20,940 INFO L168 Benchmark]: TraceAbstraction took 299.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-18 17:32:20,941 INFO L168 Benchmark]: Witness Printer took 87.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:32:20,943 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 442.63 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 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 43.60 ms. Allocated memory is still 1.0 GB. Free memory was 946.2 MB in the beginning and 943.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.24 ms. Allocated memory is still 1.0 GB. Free memory is still 943.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1497.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 84.4 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -113.0 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 299.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 87.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 9]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int q_buf_0 ; [L15] int q_free ; [L16] int q_read_ev ; [L17] int q_write_ev ; [L18] int p_num_write ; [L19] int p_last_write ; [L20] int p_dw_st ; [L21] int p_dw_pc ; [L22] int p_dw_i ; [L23] int c_num_read ; [L24] int c_last_read ; [L25] int c_dr_st ; [L26] int c_dr_pc ; [L27] int c_dr_i ; [L134] static int a_t ; VAL [\old(a_t)=11, \old(c_dr_i)=3, \old(c_dr_pc)=12, \old(c_dr_st)=15, \old(c_last_read)=5, \old(c_num_read)=6, \old(p_dw_i)=4, \old(p_dw_pc)=14, \old(p_dw_st)=9, \old(p_last_write)=17, \old(p_num_write)=7, \old(q_buf_0)=10, \old(q_free)=16, \old(q_read_ev)=13, \old(q_write_ev)=8, a_t=0, c_dr_i=0, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=0, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=0, q_read_ev=0, q_write_ev=0] [L350] int __retres1 ; VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=0, \old(q_read_ev)=0, \old(q_write_ev)=0, a_t=0, c_dr_i=0, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=0, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=0, q_read_ev=0, q_write_ev=0] [L354] CALL init_model() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=0, \old(q_read_ev)=0, \old(q_write_ev)=0, a_t=0, c_dr_i=0, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=0, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=0, q_read_ev=0, q_write_ev=0] [L336] q_free = 1 [L337] q_write_ev = 2 [L338] q_read_ev = q_write_ev [L339] p_num_write = 0 [L340] p_dw_pc = 0 [L341] p_dw_i = 1 [L342] c_num_read = 0 [L343] c_dr_pc = 0 [L344] RET c_dr_i = 1 VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=0, \old(q_read_ev)=0, \old(q_write_ev)=0, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L354] init_model() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=0, \old(q_read_ev)=0, \old(q_write_ev)=0, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L355] CALL start_simulation() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L304] int kernel_st ; [L305] int tmp ; [L309] kernel_st = 0 VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, kernel_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L310] CALL init_threads() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L196] COND TRUE (int )p_dw_i == 1 [L197] p_dw_st = 0 VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L201] COND TRUE (int )c_dr_i == 1 [L202] RET c_dr_st = 0 VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L310] init_threads() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, kernel_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L313] COND TRUE 1 VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, kernel_st=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L316] kernel_st = 1 VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, kernel_st=1, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L317] CALL eval() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L231] int tmp ; [L232] int tmp___0 ; [L233] int tmp___1 ; VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L237] COND TRUE 1 VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L240] CALL, EXPR exists_runnable_thread() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L211] int __retres1 ; VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L214] COND TRUE (int )p_dw_st == 0 [L215] __retres1 = 1 VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, __retres1=1, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L227] RET return (__retres1); VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, \result=1, __retres1=1, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L240] EXPR exists_runnable_thread() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, exists_runnable_thread()=1, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L240] tmp___1 = exists_runnable_thread() [L242] COND TRUE \read(tmp___1) VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, tmp___1=1] [L247] COND TRUE (int )p_dw_st == 0 [L249] tmp = __VERIFIER_nondet_int() [L251] COND FALSE !(\read(tmp)) VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2, tmp=0, tmp___1=1] [L257] CALL error() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] [L9] __VERIFIER_error() VAL [\old(a_t)=0, \old(c_dr_i)=0, \old(c_dr_pc)=0, \old(c_dr_st)=0, \old(c_last_read)=0, \old(c_num_read)=0, \old(p_dw_i)=0, \old(p_dw_pc)=0, \old(p_dw_st)=0, \old(p_last_write)=0, \old(p_num_write)=0, \old(q_buf_0)=0, \old(q_free)=1, \old(q_read_ev)=2, \old(q_write_ev)=2, a_t=0, c_dr_i=1, c_dr_pc=0, c_dr_st=0, c_last_read=0, c_num_read=0, p_dw_i=1, p_dw_pc=0, p_dw_st=0, p_last_write=0, p_num_write=0, q_buf_0=0, q_free=1, q_read_ev=2, q_write_ev=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 15 procedures, 112 locations, 1 error locations. UNSAFE Result, 0.2s 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=112occurred 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, 36 NumberOfCodeBlocks, 36 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 proved your program to be incorrect! Received shutdown request...