./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_1760ed16-ebe1-4d01-a60a-b54b51149f8e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1760ed16-ebe1-4d01-a60a-b54b51149f8e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1760ed16-ebe1-4d01-a60a-b54b51149f8e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1760ed16-ebe1-4d01-a60a-b54b51149f8e/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_1760ed16-ebe1-4d01-a60a-b54b51149f8e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1760ed16-ebe1-4d01-a60a-b54b51149f8e/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 [2018-12-01 22:25:06,135 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 22:25:06,137 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 22:25:06,145 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 22:25:06,145 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 22:25:06,145 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 22:25:06,146 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 22:25:06,147 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 22:25:06,149 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 22:25:06,149 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 22:25:06,150 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 22:25:06,150 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 22:25:06,151 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 22:25:06,151 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 22:25:06,152 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 22:25:06,152 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 22:25:06,153 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 22:25:06,154 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 22:25:06,155 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 22:25:06,156 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 22:25:06,157 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 22:25:06,158 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 22:25:06,159 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 22:25:06,160 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 22:25:06,160 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 22:25:06,160 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 22:25:06,161 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 22:25:06,162 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 22:25:06,162 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 22:25:06,163 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 22:25:06,163 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 22:25:06,164 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 22:25:06,164 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 22:25:06,164 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 22:25:06,165 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 22:25:06,165 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 22:25:06,165 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1760ed16-ebe1-4d01-a60a-b54b51149f8e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-01 22:25:06,175 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 22:25:06,175 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 22:25:06,176 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 22:25:06,176 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 22:25:06,176 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-01 22:25:06,176 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-01 22:25:06,177 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-01 22:25:06,177 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-01 22:25:06,177 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-01 22:25:06,177 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-01 22:25:06,177 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-01 22:25:06,177 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-01 22:25:06,177 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-01 22:25:06,178 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 22:25:06,178 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 22:25:06,178 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 22:25:06,178 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 22:25:06,178 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 22:25:06,178 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 22:25:06,179 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 22:25:06,179 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 22:25:06,179 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 22:25:06,179 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 22:25:06,179 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 22:25:06,179 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 22:25:06,180 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 22:25:06,180 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 22:25:06,180 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 22:25:06,180 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 22:25:06,180 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 22:25:06,180 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 22:25:06,180 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 22:25:06,180 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-01 22:25:06,181 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 22:25:06,181 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 22:25:06,181 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-01 22:25:06,181 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_1760ed16-ebe1-4d01-a60a-b54b51149f8e/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 [2018-12-01 22:25:06,205 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 22:25:06,214 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 22:25:06,216 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 22:25:06,216 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 22:25:06,217 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 22:25:06,217 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1760ed16-ebe1-4d01-a60a-b54b51149f8e/bin-2019/utaipan/../../sv-benchmarks/c/pthread-ext/19_time_var_mutex_true-unreach-call.i [2018-12-01 22:25:06,251 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1760ed16-ebe1-4d01-a60a-b54b51149f8e/bin-2019/utaipan/data/23d48093b/fd282775eafe41c18b9fd50e9b1ec27f/FLAGbe4bf2682 [2018-12-01 22:25:06,686 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 22:25:06,686 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1760ed16-ebe1-4d01-a60a-b54b51149f8e/sv-benchmarks/c/pthread-ext/19_time_var_mutex_true-unreach-call.i [2018-12-01 22:25:06,693 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1760ed16-ebe1-4d01-a60a-b54b51149f8e/bin-2019/utaipan/data/23d48093b/fd282775eafe41c18b9fd50e9b1ec27f/FLAGbe4bf2682 [2018-12-01 22:25:06,701 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1760ed16-ebe1-4d01-a60a-b54b51149f8e/bin-2019/utaipan/data/23d48093b/fd282775eafe41c18b9fd50e9b1ec27f [2018-12-01 22:25:06,703 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 22:25:06,704 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 22:25:06,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 22:25:06,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 22:25:06,707 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 22:25:06,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:25:06" (1/1) ... [2018-12-01 22:25:06,709 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 01.12 10:25:06, skipping insertion in model container [2018-12-01 22:25:06,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:25:06" (1/1) ... [2018-12-01 22:25:06,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 22:25:06,731 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 22:25:06,886 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:25:06,894 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 22:25:06,961 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:25:06,992 INFO L195 MainTranslator]: Completed translation [2018-12-01 22:25:06,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:25:06 WrapperNode [2018-12-01 22:25:06,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 22:25:06,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 22:25:06,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 22:25:06,993 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 22:25:06,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:25:06" (1/1) ... [2018-12-01 22:25:07,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:25:06" (1/1) ... [2018-12-01 22:25:07,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 22:25:07,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 22:25:07,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 22:25:07,022 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 22:25:07,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:25:06" (1/1) ... [2018-12-01 22:25:07,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:25:06" (1/1) ... [2018-12-01 22:25:07,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:25:06" (1/1) ... [2018-12-01 22:25:07,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:25:06" (1/1) ... [2018-12-01 22:25:07,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:25:06" (1/1) ... [2018-12-01 22:25:07,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:25:06" (1/1) ... [2018-12-01 22:25:07,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:25:06" (1/1) ... [2018-12-01 22:25:07,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 22:25:07,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 22:25:07,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 22:25:07,039 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 22:25:07,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:25:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1760ed16-ebe1-4d01-a60a-b54b51149f8e/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 [2018-12-01 22:25:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 22:25:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-01 22:25:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-12-01 22:25:07,074 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-12-01 22:25:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-01 22:25:07,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 22:25:07,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-01 22:25:07,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 22:25:07,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 22:25:07,076 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-01 22:25:07,147 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2018-12-01 22:25:07,148 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2018-12-01 22:25:07,148 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2018-12-01 22:25:07,150 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2018-12-01 22:25:07,205 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2018-12-01 22:25:07,206 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2018-12-01 22:25:07,243 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 22:25:07,243 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-01 22:25:07,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:25:07 BoogieIcfgContainer [2018-12-01 22:25:07,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 22:25:07,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 22:25:07,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 22:25:07,246 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 22:25:07,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 10:25:06" (1/3) ... [2018-12-01 22:25:07,246 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 01.12 10:25:07, skipping insertion in model container [2018-12-01 22:25:07,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:25:06" (2/3) ... [2018-12-01 22:25:07,246 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 01.12 10:25:07, skipping insertion in model container [2018-12-01 22:25:07,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:25:07" (3/3) ... [2018-12-01 22:25:07,248 INFO L112 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex_true-unreach-call.i [2018-12-01 22:25:07,266 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,266 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,266 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,266 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,266 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,266 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,267 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,267 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,267 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,267 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,267 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,267 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,267 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,267 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,267 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,268 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,268 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,268 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,268 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,268 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,268 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,268 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,268 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,268 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,269 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,269 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:25:07,272 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-01 22:25:07,272 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 22:25:07,277 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-01 22:25:07,286 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-01 22:25:07,302 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 22:25:07,302 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-01 22:25:07,302 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 22:25:07,302 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 22:25:07,302 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 22:25:07,302 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 22:25:07,302 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 22:25:07,302 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 22:25:07,307 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46places, 48 transitions [2018-12-01 22:25:07,321 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 254 states. [2018-12-01 22:25:07,322 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2018-12-01 22:25:07,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-01 22:25:07,327 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:25:07,328 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:25:07,329 INFO L423 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:25:07,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:25:07,332 INFO L82 PathProgramCache]: Analyzing trace with hash -93902896, now seen corresponding path program 1 times [2018-12-01 22:25:07,334 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:25:07,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:25:07,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:25:07,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:25:07,370 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:25:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:25:07,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:25:07,450 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:25:07,450 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 22:25:07,450 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:25:07,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 22:25:07,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 22:25:07,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 22:25:07,463 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2018-12-01 22:25:07,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:25:07,482 INFO L93 Difference]: Finished difference Result 254 states and 474 transitions. [2018-12-01 22:25:07,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 22:25:07,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-12-01 22:25:07,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:25:07,490 INFO L225 Difference]: With dead ends: 254 [2018-12-01 22:25:07,491 INFO L226 Difference]: Without dead ends: 214 [2018-12-01 22:25:07,492 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 [2018-12-01 22:25:07,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-12-01 22:25:07,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2018-12-01 22:25:07,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2018-12-01 22:25:07,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 390 transitions. [2018-12-01 22:25:07,518 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 390 transitions. Word has length 19 [2018-12-01 22:25:07,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:25:07,519 INFO L480 AbstractCegarLoop]: Abstraction has 214 states and 390 transitions. [2018-12-01 22:25:07,519 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 22:25:07,519 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 390 transitions. [2018-12-01 22:25:07,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-01 22:25:07,519 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:25:07,519 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] [2018-12-01 22:25:07,519 INFO L423 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:25:07,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:25:07,520 INFO L82 PathProgramCache]: Analyzing trace with hash -75952209, now seen corresponding path program 1 times [2018-12-01 22:25:07,520 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:25:07,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:25:07,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:25:07,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:25:07,523 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:25:07,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:25:07,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:25:07,547 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:25:07,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 22:25:07,547 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:25:07,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 22:25:07,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 22:25:07,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 22:25:07,549 INFO L87 Difference]: Start difference. First operand 214 states and 390 transitions. Second operand 3 states. [2018-12-01 22:25:07,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:25:07,573 INFO L93 Difference]: Finished difference Result 225 states and 391 transitions. [2018-12-01 22:25:07,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 22:25:07,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-12-01 22:25:07,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:25:07,574 INFO L225 Difference]: With dead ends: 225 [2018-12-01 22:25:07,574 INFO L226 Difference]: Without dead ends: 165 [2018-12-01 22:25:07,575 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 [2018-12-01 22:25:07,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-12-01 22:25:07,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 153. [2018-12-01 22:25:07,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-12-01 22:25:07,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 259 transitions. [2018-12-01 22:25:07,583 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 259 transitions. Word has length 21 [2018-12-01 22:25:07,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:25:07,583 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 259 transitions. [2018-12-01 22:25:07,583 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 22:25:07,583 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 259 transitions. [2018-12-01 22:25:07,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-01 22:25:07,583 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:25:07,583 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] [2018-12-01 22:25:07,584 INFO L423 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:25:07,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:25:07,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1922359822, now seen corresponding path program 1 times [2018-12-01 22:25:07,584 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:25:07,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:25:07,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:25:07,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:25:07,587 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:25:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:25:07,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:25:07,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:25:07,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 22:25:07,608 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:25:07,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 22:25:07,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 22:25:07,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 22:25:07,609 INFO L87 Difference]: Start difference. First operand 153 states and 259 transitions. Second operand 3 states. [2018-12-01 22:25:07,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:25:07,619 INFO L93 Difference]: Finished difference Result 141 states and 229 transitions. [2018-12-01 22:25:07,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 22:25:07,619 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-12-01 22:25:07,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:25:07,619 INFO L225 Difference]: With dead ends: 141 [2018-12-01 22:25:07,620 INFO L226 Difference]: Without dead ends: 109 [2018-12-01 22:25:07,620 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 [2018-12-01 22:25:07,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-12-01 22:25:07,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2018-12-01 22:25:07,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-12-01 22:25:07,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 170 transitions. [2018-12-01 22:25:07,623 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 170 transitions. Word has length 23 [2018-12-01 22:25:07,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:25:07,624 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 170 transitions. [2018-12-01 22:25:07,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 22:25:07,624 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 170 transitions. [2018-12-01 22:25:07,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-01 22:25:07,624 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:25:07,624 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] [2018-12-01 22:25:07,624 INFO L423 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:25:07,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:25:07,625 INFO L82 PathProgramCache]: Analyzing trace with hash 487444036, now seen corresponding path program 1 times [2018-12-01 22:25:07,625 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:25:07,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:25:07,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:25:07,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:25:07,627 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:25:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:25:07,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:25:07,655 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:25:07,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 22:25:07,655 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:25:07,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-01 22:25:07,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 22:25:07,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 22:25:07,656 INFO L87 Difference]: Start difference. First operand 109 states and 170 transitions. Second operand 3 states. [2018-12-01 22:25:07,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:25:07,659 INFO L93 Difference]: Finished difference Result 109 states and 167 transitions. [2018-12-01 22:25:07,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 22:25:07,659 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-12-01 22:25:07,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:25:07,659 INFO L225 Difference]: With dead ends: 109 [2018-12-01 22:25:07,660 INFO L226 Difference]: Without dead ends: 91 [2018-12-01 22:25:07,660 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 [2018-12-01 22:25:07,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-12-01 22:25:07,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2018-12-01 22:25:07,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-12-01 22:25:07,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 134 transitions. [2018-12-01 22:25:07,662 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 134 transitions. Word has length 28 [2018-12-01 22:25:07,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:25:07,662 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 134 transitions. [2018-12-01 22:25:07,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-01 22:25:07,663 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 134 transitions. [2018-12-01 22:25:07,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-01 22:25:07,663 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:25:07,663 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] [2018-12-01 22:25:07,663 INFO L423 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:25:07,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:25:07,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1382184874, now seen corresponding path program 1 times [2018-12-01 22:25:07,663 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-01 22:25:07,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:25:07,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:25:07,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:25:07,665 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-01 22:25:07,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:25:07,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:25:07,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:25:07,697 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-01 22:25:07,697 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-01 22:25:07,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-01 22:25:07,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-01 22:25:07,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-01 22:25:07,698 INFO L87 Difference]: Start difference. First operand 91 states and 134 transitions. Second operand 4 states. [2018-12-01 22:25:07,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:25:07,715 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2018-12-01 22:25:07,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-01 22:25:07,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-12-01 22:25:07,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:25:07,715 INFO L225 Difference]: With dead ends: 35 [2018-12-01 22:25:07,715 INFO L226 Difference]: Without dead ends: 0 [2018-12-01 22:25:07,716 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 [2018-12-01 22:25:07,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-01 22:25:07,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-01 22:25:07,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-01 22:25:07,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-01 22:25:07,716 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-12-01 22:25:07,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:25:07,716 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 22:25:07,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-01 22:25:07,716 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-01 22:25:07,716 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-01 22:25:07,718 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-01 22:25:07,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 10:25:07 BasicIcfg [2018-12-01 22:25:07,720 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 22:25:07,720 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 22:25:07,721 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 22:25:07,721 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 22:25:07,721 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:25:07" (3/4) ... [2018-12-01 22:25:07,724 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-01 22:25:07,729 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2018-12-01 22:25:07,732 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-01 22:25:07,732 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-01 22:25:07,757 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1760ed16-ebe1-4d01-a60a-b54b51149f8e/bin-2019/utaipan/witness.graphml [2018-12-01 22:25:07,758 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 22:25:07,758 INFO L168 Benchmark]: Toolchain (without parser) took 1054.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.8 MB). Free memory was 956.0 MB in the beginning and 951.1 MB in the end (delta: 4.9 MB). Peak memory consumption was 86.7 MB. Max. memory is 11.5 GB. [2018-12-01 22:25:07,759 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:25:07,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.8 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -100.7 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2018-12-01 22:25:07,759 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:25:07,760 INFO L168 Benchmark]: Boogie Preprocessor took 16.20 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:25:07,760 INFO L168 Benchmark]: RCFGBuilder took 204.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2018-12-01 22:25:07,760 INFO L168 Benchmark]: TraceAbstraction took 476.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 951.1 MB in the end (delta: 78.7 MB). Peak memory consumption was 78.7 MB. Max. memory is 11.5 GB. [2018-12-01 22:25:07,760 INFO L168 Benchmark]: Witness Printer took 37.22 ms. Allocated memory is still 1.1 GB. Free memory is still 951.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:25:07,761 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 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 287.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 81.8 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -100.7 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.29 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.20 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 204.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 476.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 951.1 MB in the end (delta: 78.7 MB). Peak memory consumption was 78.7 MB. Max. memory is 11.5 GB. * Witness Printer took 37.22 ms. Allocated memory is still 1.1 GB. Free memory is still 951.1 MB. There was no memory consumed. 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, 0.0s 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...