./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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a806f0c8-b5aa-4418-8795-79b6f69679bd/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a806f0c8-b5aa-4418-8795-79b6f69679bd/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a806f0c8-b5aa-4418-8795-79b6f69679bd/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a806f0c8-b5aa-4418-8795-79b6f69679bd/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/pc_sfifo_1_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a806f0c8-b5aa-4418-8795-79b6f69679bd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a806f0c8-b5aa-4418-8795-79b6f69679bd/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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 0.1.23-1dbac8b [2018-11-10 05:34:07,767 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:34:07,769 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:34:07,779 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:34:07,779 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:34:07,780 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:34:07,781 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:34:07,782 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:34:07,784 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:34:07,784 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:34:07,785 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:34:07,785 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:34:07,786 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:34:07,787 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:34:07,788 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:34:07,789 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:34:07,789 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:34:07,791 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:34:07,792 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:34:07,794 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:34:07,795 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:34:07,796 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:34:07,798 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:34:07,798 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:34:07,798 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:34:07,799 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:34:07,800 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:34:07,800 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:34:07,801 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:34:07,802 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:34:07,802 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:34:07,803 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:34:07,803 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:34:07,803 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:34:07,804 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:34:07,805 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:34:07,805 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a806f0c8-b5aa-4418-8795-79b6f69679bd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 05:34:07,817 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:34:07,817 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:34:07,818 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:34:07,818 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 05:34:07,819 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 05:34:07,819 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 05:34:07,819 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 05:34:07,819 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:34:07,819 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:34:07,819 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:34:07,820 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:34:07,820 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:34:07,820 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:34:07,820 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:34:07,820 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:34:07,820 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:34:07,820 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:34:07,821 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:34:07,821 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:34:07,821 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:34:07,821 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:34:07,821 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:34:07,821 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:34:07,822 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:34:07,822 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:34:07,822 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:34:07,822 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 05:34:07,822 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:34:07,822 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:34:07,823 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_a806f0c8-b5aa-4418-8795-79b6f69679bd/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 375e158327910cae8c3594f7d2ad0376509a1ecb [2018-11-10 05:34:07,850 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:34:07,861 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:34:07,864 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:34:07,866 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:34:07,866 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:34:07,867 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a806f0c8-b5aa-4418-8795-79b6f69679bd/bin-2019/uautomizer/../../sv-benchmarks/c/systemc/pc_sfifo_1_false-unreach-call_false-termination.cil.c [2018-11-10 05:34:07,917 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a806f0c8-b5aa-4418-8795-79b6f69679bd/bin-2019/uautomizer/data/f43f9c0b5/00e4a6d340f84b5097b3968f82f4fd9a/FLAGe9787bedd [2018-11-10 05:34:08,301 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:34:08,302 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a806f0c8-b5aa-4418-8795-79b6f69679bd/sv-benchmarks/c/systemc/pc_sfifo_1_false-unreach-call_false-termination.cil.c [2018-11-10 05:34:08,309 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a806f0c8-b5aa-4418-8795-79b6f69679bd/bin-2019/uautomizer/data/f43f9c0b5/00e4a6d340f84b5097b3968f82f4fd9a/FLAGe9787bedd [2018-11-10 05:34:08,320 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a806f0c8-b5aa-4418-8795-79b6f69679bd/bin-2019/uautomizer/data/f43f9c0b5/00e4a6d340f84b5097b3968f82f4fd9a [2018-11-10 05:34:08,323 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:34:08,324 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 05:34:08,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:34:08,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:34:08,328 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:34:08,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:34:08" (1/1) ... [2018-11-10 05:34:08,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@769b41f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:08, skipping insertion in model container [2018-11-10 05:34:08,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:34:08" (1/1) ... [2018-11-10 05:34:08,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:34:08,364 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:34:08,509 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:34:08,512 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:34:08,539 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:34:08,553 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:34:08,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:08 WrapperNode [2018-11-10 05:34:08,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:34:08,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:34:08,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:34:08,554 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:34:08,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:08" (1/1) ... [2018-11-10 05:34:08,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:08" (1/1) ... [2018-11-10 05:34:08,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:08" (1/1) ... [2018-11-10 05:34:08,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:08" (1/1) ... [2018-11-10 05:34:08,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:08" (1/1) ... [2018-11-10 05:34:08,581 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:08" (1/1) ... [2018-11-10 05:34:08,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:08" (1/1) ... [2018-11-10 05:34:08,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:34:08,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:34:08,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:34:08,584 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:34:08,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a806f0c8-b5aa-4418-8795-79b6f69679bd/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:34:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:34:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:34:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2018-11-10 05:34:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_write_p_triggered [2018-11-10 05:34:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure is_do_read_c_triggered [2018-11-10 05:34:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2018-11-10 05:34:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure do_write_p [2018-11-10 05:34:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure do_read_c [2018-11-10 05:34:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2018-11-10 05:34:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2018-11-10 05:34:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2018-11-10 05:34:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2018-11-10 05:34:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2018-11-10 05:34:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2018-11-10 05:34:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:34:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 05:34:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 05:34:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure error [2018-11-10 05:34:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_write_p_triggered [2018-11-10 05:34:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure is_do_read_c_triggered [2018-11-10 05:34:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2018-11-10 05:34:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure do_write_p [2018-11-10 05:34:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure do_read_c [2018-11-10 05:34:08,673 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2018-11-10 05:34:08,674 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2018-11-10 05:34:08,674 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2018-11-10 05:34:08,674 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2018-11-10 05:34:08,674 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2018-11-10 05:34:08,674 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2018-11-10 05:34:08,674 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:34:08,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:34:08,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:34:08,973 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:34:08,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:34:08 BoogieIcfgContainer [2018-11-10 05:34:08,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:34:08,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:34:08,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:34:08,976 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:34:08,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:34:08" (1/3) ... [2018-11-10 05:34:08,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b73a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:34:08, skipping insertion in model container [2018-11-10 05:34:08,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:34:08" (2/3) ... [2018-11-10 05:34:08,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b73a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:34:08, skipping insertion in model container [2018-11-10 05:34:08,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:34:08" (3/3) ... [2018-11-10 05:34:08,978 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1_false-unreach-call_false-termination.cil.c [2018-11-10 05:34:08,985 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:34:08,990 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 05:34:09,001 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 05:34:09,024 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 05:34:09,024 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:34:09,024 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:34:09,024 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:34:09,025 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:34:09,025 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:34:09,025 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:34:09,025 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:34:09,025 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:34:09,039 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states. [2018-11-10 05:34:09,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-10 05:34:09,044 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:34:09,045 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] [2018-11-10 05:34:09,046 INFO L424 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:34:09,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:34:09,050 INFO L82 PathProgramCache]: Analyzing trace with hash -360871831, now seen corresponding path program 1 times [2018-11-10 05:34:09,052 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:34:09,052 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:34:09,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:34:09,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:34:09,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:34:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:34:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:34:09,247 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 05:34:09,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:34:09 BoogieIcfgContainer [2018-11-10 05:34:09,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 05:34:09,296 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:34:09,296 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:34:09,296 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:34:09,296 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:34:08" (3/4) ... [2018-11-10 05:34:09,299 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 05:34:09,363 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a806f0c8-b5aa-4418-8795-79b6f69679bd/bin-2019/uautomizer/witness.graphml [2018-11-10 05:34:09,363 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:34:09,364 INFO L168 Benchmark]: Toolchain (without parser) took 1041.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.7 MB). Free memory was 954.8 MB in the beginning and 1.1 GB in the end (delta: -158.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:34:09,366 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:34:09,366 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.45 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 941.4 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:34:09,366 INFO L168 Benchmark]: Boogie Preprocessor took 29.59 ms. Allocated memory is still 1.0 GB. Free memory was 941.4 MB in the beginning and 938.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:34:09,367 INFO L168 Benchmark]: RCFGBuilder took 389.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.7 MB). Free memory was 938.7 MB in the beginning and 1.1 GB in the end (delta: -202.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-11-10 05:34:09,367 INFO L168 Benchmark]: TraceAbstraction took 321.27 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: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2018-11-10 05:34:09,368 INFO L168 Benchmark]: Witness Printer took 67.90 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: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:34:09,370 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 229.45 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 941.4 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.59 ms. Allocated memory is still 1.0 GB. Free memory was 941.4 MB in the beginning and 938.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 389.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.7 MB). Free memory was 938.7 MB in the beginning and 1.1 GB in the end (delta: -202.6 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 321.27 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: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Witness Printer took 67.90 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: 7.7 MB). Peak memory consumption was 7.7 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...