./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/19_time_var_mutex_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f870f888-3683-489e-a90b-9c20cfc776c5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f870f888-3683-489e-a90b-9c20cfc776c5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f870f888-3683-489e-a90b-9c20cfc776c5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f870f888-3683-489e-a90b-9c20cfc776c5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/19_time_var_mutex_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f870f888-3683-489e-a90b-9c20cfc776c5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f870f888-3683-489e-a90b-9c20cfc776c5/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 04cb1127e87d8c117db54fcde1105aef4f839958 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 17:24:20,768 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 17:24:20,769 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 17:24:20,775 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 17:24:20,775 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 17:24:20,775 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 17:24:20,776 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 17:24:20,777 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 17:24:20,778 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 17:24:20,779 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 17:24:20,779 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 17:24:20,779 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 17:24:20,780 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 17:24:20,780 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 17:24:20,781 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 17:24:20,781 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 17:24:20,782 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 17:24:20,783 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 17:24:20,784 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 17:24:20,784 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 17:24:20,785 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 17:24:20,786 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 17:24:20,787 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 17:24:20,787 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 17:24:20,787 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 17:24:20,788 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 17:24:20,788 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 17:24:20,789 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 17:24:20,789 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 17:24:20,790 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 17:24:20,790 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 17:24:20,790 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 17:24:20,790 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 17:24:20,791 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 17:24:20,791 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 17:24:20,792 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 17:24:20,792 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f870f888-3683-489e-a90b-9c20cfc776c5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 17:24:20,799 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 17:24:20,799 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 17:24:20,800 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 17:24:20,800 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 17:24:20,800 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 17:24:20,800 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 17:24:20,800 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 17:24:20,801 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 17:24:20,801 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 17:24:20,801 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 17:24:20,801 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 17:24:20,801 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 17:24:20,801 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 17:24:20,802 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 17:24:20,802 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 17:24:20,802 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 17:24:20,802 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 17:24:20,802 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 17:24:20,802 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 17:24:20,802 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 17:24:20,802 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 17:24:20,803 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 17:24:20,803 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 17:24:20,803 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 17:24:20,803 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 17:24:20,803 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 17:24:20,803 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 17:24:20,803 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 17:24:20,804 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 17:24:20,804 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 17:24:20,804 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 17:24:20,804 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 17:24:20,804 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 17:24:20,804 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 17:24:20,804 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 17:24:20,804 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 17:24:20,805 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_f870f888-3683-489e-a90b-9c20cfc776c5/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 -> 04cb1127e87d8c117db54fcde1105aef4f839958 [2018-12-09 17:24:20,822 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 17:24:20,829 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 17:24:20,831 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 17:24:20,832 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 17:24:20,832 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 17:24:20,833 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f870f888-3683-489e-a90b-9c20cfc776c5/bin-2019/utaipan/../../sv-benchmarks/c/pthread-ext/19_time_var_mutex_true-unreach-call.i [2018-12-09 17:24:20,866 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f870f888-3683-489e-a90b-9c20cfc776c5/bin-2019/utaipan/data/986efc2c4/d6c331c3b3f547b680568e01e549f5e8/FLAG436f8bc48 [2018-12-09 17:24:21,255 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 17:24:21,256 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f870f888-3683-489e-a90b-9c20cfc776c5/sv-benchmarks/c/pthread-ext/19_time_var_mutex_true-unreach-call.i [2018-12-09 17:24:21,261 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f870f888-3683-489e-a90b-9c20cfc776c5/bin-2019/utaipan/data/986efc2c4/d6c331c3b3f547b680568e01e549f5e8/FLAG436f8bc48 [2018-12-09 17:24:21,269 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f870f888-3683-489e-a90b-9c20cfc776c5/bin-2019/utaipan/data/986efc2c4/d6c331c3b3f547b680568e01e549f5e8 [2018-12-09 17:24:21,271 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 17:24:21,272 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 17:24:21,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 17:24:21,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 17:24:21,274 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 17:24:21,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:24:21" (1/1) ... [2018-12-09 17:24:21,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c26117 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:21, skipping insertion in model container [2018-12-09 17:24:21,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:24:21" (1/1) ... [2018-12-09 17:24:21,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 17:24:21,305 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 17:24:21,469 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 17:24:21,478 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 17:24:21,544 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 17:24:21,586 INFO L195 MainTranslator]: Completed translation [2018-12-09 17:24:21,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:21 WrapperNode [2018-12-09 17:24:21,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 17:24:21,587 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 17:24:21,587 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 17:24:21,587 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 17:24:21,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:21" (1/1) ... [2018-12-09 17:24:21,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:21" (1/1) ... [2018-12-09 17:24:21,626 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 17:24:21,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 17:24:21,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 17:24:21,626 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 17:24:21,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:21" (1/1) ... [2018-12-09 17:24:21,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:21" (1/1) ... [2018-12-09 17:24:21,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:21" (1/1) ... [2018-12-09 17:24:21,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:21" (1/1) ... [2018-12-09 17:24:21,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:21" (1/1) ... [2018-12-09 17:24:21,643 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:21" (1/1) ... [2018-12-09 17:24:21,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:21" (1/1) ... [2018-12-09 17:24:21,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 17:24:21,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 17:24:21,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 17:24:21,648 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 17:24:21,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f870f888-3683-489e-a90b-9c20cfc776c5/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 17:24:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 17:24:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 17:24:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-12-09 17:24:21,682 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-12-09 17:24:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 17:24:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 17:24:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 17:24:21,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 17:24:21,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 17:24:21,683 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-09 17:24:21,749 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2018-12-09 17:24:21,749 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2018-12-09 17:24:21,750 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2018-12-09 17:24:21,751 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2018-12-09 17:24:21,794 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2018-12-09 17:24:21,794 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2018-12-09 17:24:21,835 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 17:24:21,835 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 17:24:21,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:24:21 BoogieIcfgContainer [2018-12-09 17:24:21,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 17:24:21,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 17:24:21,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 17:24:21,838 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 17:24:21,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:24:21" (1/3) ... [2018-12-09 17:24:21,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e94a31b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:24:21, skipping insertion in model container [2018-12-09 17:24:21,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:24:21" (2/3) ... [2018-12-09 17:24:21,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e94a31b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:24:21, skipping insertion in model container [2018-12-09 17:24:21,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:24:21" (3/3) ... [2018-12-09 17:24:21,840 INFO L112 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex_true-unreach-call.i [2018-12-09 17:24:21,859 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,859 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,859 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,859 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,859 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,859 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,859 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,859 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,859 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,860 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,860 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,860 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,860 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,860 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,860 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,860 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,860 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,860 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,860 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,861 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,861 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,861 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,861 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,861 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,861 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,861 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:24:21,864 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-09 17:24:21,864 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 17:24:21,870 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-09 17:24:21,879 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-09 17:24:21,894 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 17:24:21,894 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 17:24:21,894 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 17:24:21,894 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 17:24:21,895 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 17:24:21,895 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 17:24:21,895 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 17:24:21,895 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 17:24:21,900 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46places, 48 transitions [2018-12-09 17:24:21,913 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 254 states. [2018-12-09 17:24:21,915 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2018-12-09 17:24:21,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 17:24:21,920 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:24:21,920 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 17:24:21,922 INFO L423 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:24:21,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:24:21,925 INFO L82 PathProgramCache]: Analyzing trace with hash -93902896, now seen corresponding path program 1 times [2018-12-09 17:24:21,926 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:24:21,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:24:21,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:24:21,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:24:21,962 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:24:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:24:22,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:24:22,036 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:24:22,036 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 17:24:22,036 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:24:22,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 17:24:22,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 17:24:22,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 17:24:22,048 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2018-12-09 17:24:22,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:24:22,069 INFO L93 Difference]: Finished difference Result 254 states and 474 transitions. [2018-12-09 17:24:22,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 17:24:22,070 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-12-09 17:24:22,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:24:22,077 INFO L225 Difference]: With dead ends: 254 [2018-12-09 17:24:22,077 INFO L226 Difference]: Without dead ends: 214 [2018-12-09 17:24:22,078 INFO L631 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 [2018-12-09 17:24:22,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-12-09 17:24:22,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2018-12-09 17:24:22,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2018-12-09 17:24:22,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 390 transitions. [2018-12-09 17:24:22,105 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 390 transitions. Word has length 19 [2018-12-09 17:24:22,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:24:22,105 INFO L480 AbstractCegarLoop]: Abstraction has 214 states and 390 transitions. [2018-12-09 17:24:22,105 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 17:24:22,105 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 390 transitions. [2018-12-09 17:24:22,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 17:24:22,106 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:24:22,106 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 17:24:22,106 INFO L423 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:24:22,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:24:22,106 INFO L82 PathProgramCache]: Analyzing trace with hash -75952209, now seen corresponding path program 1 times [2018-12-09 17:24:22,106 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:24:22,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:24:22,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:24:22,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:24:22,109 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:24:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:24:22,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:24:22,137 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:24:22,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 17:24:22,137 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:24:22,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 17:24:22,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 17:24:22,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 17:24:22,139 INFO L87 Difference]: Start difference. First operand 214 states and 390 transitions. Second operand 3 states. [2018-12-09 17:24:22,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:24:22,160 INFO L93 Difference]: Finished difference Result 225 states and 391 transitions. [2018-12-09 17:24:22,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 17:24:22,161 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-12-09 17:24:22,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:24:22,161 INFO L225 Difference]: With dead ends: 225 [2018-12-09 17:24:22,161 INFO L226 Difference]: Without dead ends: 165 [2018-12-09 17:24:22,162 INFO L631 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 [2018-12-09 17:24:22,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-12-09 17:24:22,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 153. [2018-12-09 17:24:22,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-12-09 17:24:22,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 259 transitions. [2018-12-09 17:24:22,167 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 259 transitions. Word has length 21 [2018-12-09 17:24:22,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:24:22,167 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 259 transitions. [2018-12-09 17:24:22,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 17:24:22,168 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 259 transitions. [2018-12-09 17:24:22,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 17:24:22,168 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:24:22,168 INFO L402 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] [2018-12-09 17:24:22,168 INFO L423 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:24:22,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:24:22,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1922359822, now seen corresponding path program 1 times [2018-12-09 17:24:22,169 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:24:22,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:24:22,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:24:22,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:24:22,171 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:24:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:24:22,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:24:22,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:24:22,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 17:24:22,188 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:24:22,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 17:24:22,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 17:24:22,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 17:24:22,189 INFO L87 Difference]: Start difference. First operand 153 states and 259 transitions. Second operand 3 states. [2018-12-09 17:24:22,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:24:22,199 INFO L93 Difference]: Finished difference Result 141 states and 229 transitions. [2018-12-09 17:24:22,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 17:24:22,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-12-09 17:24:22,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:24:22,200 INFO L225 Difference]: With dead ends: 141 [2018-12-09 17:24:22,200 INFO L226 Difference]: Without dead ends: 109 [2018-12-09 17:24:22,200 INFO L631 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 [2018-12-09 17:24:22,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-12-09 17:24:22,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2018-12-09 17:24:22,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-12-09 17:24:22,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 170 transitions. [2018-12-09 17:24:22,204 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 170 transitions. Word has length 23 [2018-12-09 17:24:22,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:24:22,204 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 170 transitions. [2018-12-09 17:24:22,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 17:24:22,204 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 170 transitions. [2018-12-09 17:24:22,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 17:24:22,205 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:24:22,205 INFO L402 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] [2018-12-09 17:24:22,205 INFO L423 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:24:22,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:24:22,205 INFO L82 PathProgramCache]: Analyzing trace with hash 487444036, now seen corresponding path program 1 times [2018-12-09 17:24:22,205 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:24:22,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:24:22,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:24:22,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:24:22,208 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:24:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:24:22,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:24:22,236 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:24:22,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 17:24:22,236 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:24:22,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 17:24:22,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 17:24:22,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 17:24:22,236 INFO L87 Difference]: Start difference. First operand 109 states and 170 transitions. Second operand 3 states. [2018-12-09 17:24:22,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:24:22,239 INFO L93 Difference]: Finished difference Result 109 states and 167 transitions. [2018-12-09 17:24:22,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 17:24:22,240 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-12-09 17:24:22,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:24:22,240 INFO L225 Difference]: With dead ends: 109 [2018-12-09 17:24:22,240 INFO L226 Difference]: Without dead ends: 91 [2018-12-09 17:24:22,241 INFO L631 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 [2018-12-09 17:24:22,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-12-09 17:24:22,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2018-12-09 17:24:22,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-12-09 17:24:22,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 134 transitions. [2018-12-09 17:24:22,243 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 134 transitions. Word has length 28 [2018-12-09 17:24:22,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:24:22,244 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 134 transitions. [2018-12-09 17:24:22,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 17:24:22,244 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 134 transitions. [2018-12-09 17:24:22,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-09 17:24:22,244 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:24:22,244 INFO L402 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] [2018-12-09 17:24:22,244 INFO L423 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:24:22,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:24:22,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1382184874, now seen corresponding path program 1 times [2018-12-09 17:24:22,245 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:24:22,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:24:22,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:24:22,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:24:22,246 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:24:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:24:22,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:24:22,272 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:24:22,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 17:24:22,272 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:24:22,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 17:24:22,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 17:24:22,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 17:24:22,273 INFO L87 Difference]: Start difference. First operand 91 states and 134 transitions. Second operand 4 states. [2018-12-09 17:24:22,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:24:22,300 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2018-12-09 17:24:22,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 17:24:22,301 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-12-09 17:24:22,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:24:22,301 INFO L225 Difference]: With dead ends: 35 [2018-12-09 17:24:22,301 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 17:24:22,301 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 17:24:22,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 17:24:22,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 17:24:22,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 17:24:22,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 17:24:22,302 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-12-09 17:24:22,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:24:22,302 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 17:24:22,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 17:24:22,302 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 17:24:22,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 17:24:22,304 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-09 17:24:22,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:24:22 BasicIcfg [2018-12-09 17:24:22,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 17:24:22,305 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 17:24:22,305 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 17:24:22,305 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 17:24:22,306 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:24:21" (3/4) ... [2018-12-09 17:24:22,308 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 17:24:22,312 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2018-12-09 17:24:22,315 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-09 17:24:22,315 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 17:24:22,340 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f870f888-3683-489e-a90b-9c20cfc776c5/bin-2019/utaipan/witness.graphml [2018-12-09 17:24:22,340 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 17:24:22,340 INFO L168 Benchmark]: Toolchain (without parser) took 1069.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 952.4 MB in the beginning and 997.5 MB in the end (delta: -45.1 MB). Peak memory consumption was 86.5 MB. Max. memory is 11.5 GB. [2018-12-09 17:24:22,341 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 17:24:22,341 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -155.6 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2018-12-09 17:24:22,342 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 17:24:22,342 INFO L168 Benchmark]: Boogie Preprocessor took 21.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 17:24:22,342 INFO L168 Benchmark]: RCFGBuilder took 188.40 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2018-12-09 17:24:22,342 INFO L168 Benchmark]: TraceAbstraction took 468.67 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: 77.4 MB). Peak memory consumption was 77.4 MB. Max. memory is 11.5 GB. [2018-12-09 17:24:22,343 INFO L168 Benchmark]: Witness Printer took 34.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 997.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-12-09 17:24:22,344 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 314.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -155.6 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 188.40 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 468.67 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: 77.4 MB). Peak memory consumption was 77.4 MB. Max. memory is 11.5 GB. * Witness Printer took 34.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 997.5 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 661]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 670]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 661]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 58 locations, 3 error locations. SAFE Result, 0.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 228 SDtfs, 120 SDslu, 118 SDs, 0 SdLazy, 23 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=254occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 4442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...