./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe029_tso.oepc_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fc47900e-641f-4c2c-b92e-a77e2787feae/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fc47900e-641f-4c2c-b92e-a77e2787feae/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fc47900e-641f-4c2c-b92e-a77e2787feae/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fc47900e-641f-4c2c-b92e-a77e2787feae/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe029_tso.oepc_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_fc47900e-641f-4c2c-b92e-a77e2787feae/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fc47900e-641f-4c2c-b92e-a77e2787feae/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 b6ca9e7d38e2bd3e72182441622f2fd7e5b254e2 .................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 22:02:37,234 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 22:02:37,235 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 22:02:37,243 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 22:02:37,243 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 22:02:37,244 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 22:02:37,244 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 22:02:37,245 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 22:02:37,247 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 22:02:37,247 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 22:02:37,248 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 22:02:37,248 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 22:02:37,248 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 22:02:37,249 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 22:02:37,249 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 22:02:37,250 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 22:02:37,250 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 22:02:37,251 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 22:02:37,253 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 22:02:37,254 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 22:02:37,255 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 22:02:37,255 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 22:02:37,257 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 22:02:37,257 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 22:02:37,257 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 22:02:37,258 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 22:02:37,259 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 22:02:37,259 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 22:02:37,259 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 22:02:37,260 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 22:02:37,260 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 22:02:37,260 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 22:02:37,260 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 22:02:37,261 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 22:02:37,261 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 22:02:37,261 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 22:02:37,261 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fc47900e-641f-4c2c-b92e-a77e2787feae/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-22 22:02:37,268 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 22:02:37,268 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 22:02:37,269 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 22:02:37,269 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 22:02:37,269 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-22 22:02:37,269 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-22 22:02:37,269 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-22 22:02:37,269 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-22 22:02:37,270 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-22 22:02:37,270 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-22 22:02:37,270 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-22 22:02:37,270 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-22 22:02:37,270 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-22 22:02:37,271 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 22:02:37,271 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 22:02:37,271 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 22:02:37,271 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 22:02:37,271 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 22:02:37,271 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 22:02:37,272 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 22:02:37,272 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 22:02:37,272 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 22:02:37,272 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 22:02:37,272 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 22:02:37,272 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 22:02:37,272 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 22:02:37,273 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 22:02:37,273 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 22:02:37,273 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 22:02:37,273 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 22:02:37,273 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 22:02:37,273 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 22:02:37,273 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 22:02:37,274 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-22 22:02:37,274 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 22:02:37,274 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 22:02:37,274 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-22 22:02:37,274 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_fc47900e-641f-4c2c-b92e-a77e2787feae/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 -> b6ca9e7d38e2bd3e72182441622f2fd7e5b254e2 [2018-11-22 22:02:37,295 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 22:02:37,303 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 22:02:37,305 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 22:02:37,306 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 22:02:37,306 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 22:02:37,306 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fc47900e-641f-4c2c-b92e-a77e2787feae/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe029_tso.oepc_true-unreach-call.i [2018-11-22 22:02:37,341 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc47900e-641f-4c2c-b92e-a77e2787feae/bin-2019/utaipan/data/e71f4b367/2a7f98fa53914544b3521921c53a8289/FLAGbef1b8626 [2018-11-22 22:02:37,784 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 22:02:37,784 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fc47900e-641f-4c2c-b92e-a77e2787feae/sv-benchmarks/c/pthread-wmm/safe029_tso.oepc_true-unreach-call.i [2018-11-22 22:02:37,795 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc47900e-641f-4c2c-b92e-a77e2787feae/bin-2019/utaipan/data/e71f4b367/2a7f98fa53914544b3521921c53a8289/FLAGbef1b8626 [2018-11-22 22:02:37,804 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fc47900e-641f-4c2c-b92e-a77e2787feae/bin-2019/utaipan/data/e71f4b367/2a7f98fa53914544b3521921c53a8289 [2018-11-22 22:02:37,806 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 22:02:37,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 22:02:37,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 22:02:37,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 22:02:37,810 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 22:02:37,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:02:37" (1/1) ... [2018-11-22 22:02:37,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d3ac4a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:02:37, skipping insertion in model container [2018-11-22 22:02:37,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:02:37" (1/1) ... [2018-11-22 22:02:37,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 22:02:37,847 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 22:02:38,051 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:02:38,058 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 22:02:38,133 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:02:38,165 INFO L195 MainTranslator]: Completed translation [2018-11-22 22:02:38,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:02:38 WrapperNode [2018-11-22 22:02:38,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 22:02:38,166 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 22:02:38,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 22:02:38,166 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 22:02:38,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:02:38" (1/1) ... [2018-11-22 22:02:38,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:02:38" (1/1) ... [2018-11-22 22:02:38,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 22:02:38,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 22:02:38,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 22:02:38,195 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 22:02:38,201 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:02:38" (1/1) ... [2018-11-22 22:02:38,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:02:38" (1/1) ... [2018-11-22 22:02:38,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:02:38" (1/1) ... [2018-11-22 22:02:38,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:02:38" (1/1) ... [2018-11-22 22:02:38,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:02:38" (1/1) ... [2018-11-22 22:02:38,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:02:38" (1/1) ... [2018-11-22 22:02:38,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:02:38" (1/1) ... [2018-11-22 22:02:38,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 22:02:38,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 22:02:38,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 22:02:38,212 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 22:02:38,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:02:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc47900e-641f-4c2c-b92e-a77e2787feae/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 22:02:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-22 22:02:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-22 22:02:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-22 22:02:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-22 22:02:38,255 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-22 22:02:38,255 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-22 22:02:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-22 22:02:38,256 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-22 22:02:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-22 22:02:38,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 22:02:38,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 22:02:38,257 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-22 22:02:38,434 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 22:02:38,435 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-22 22:02:38,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:02:38 BoogieIcfgContainer [2018-11-22 22:02:38,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 22:02:38,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 22:02:38,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 22:02:38,438 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 22:02:38,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:02:37" (1/3) ... [2018-11-22 22:02:38,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@570ba580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:02:38, skipping insertion in model container [2018-11-22 22:02:38,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:02:38" (2/3) ... [2018-11-22 22:02:38,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@570ba580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:02:38, skipping insertion in model container [2018-11-22 22:02:38,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:02:38" (3/3) ... [2018-11-22 22:02:38,441 INFO L112 eAbstractionObserver]: Analyzing ICFG safe029_tso.oepc_true-unreach-call.i [2018-11-22 22:02:38,466 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,466 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,466 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,466 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,466 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,467 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,467 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,467 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,467 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,467 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,467 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,468 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,468 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,468 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,468 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,468 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,468 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,468 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,469 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,469 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 22:02:38,475 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-22 22:02:38,475 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 22:02:38,480 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-22 22:02:38,490 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-22 22:02:38,505 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 22:02:38,505 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 22:02:38,505 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 22:02:38,506 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 22:02:38,506 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 22:02:38,506 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 22:02:38,506 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 22:02:38,506 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 22:02:38,513 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42places, 40 transitions [2018-11-22 22:02:38,539 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 432 states. [2018-11-22 22:02:38,541 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states. [2018-11-22 22:02:38,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-22 22:02:38,550 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:02:38,551 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] [2018-11-22 22:02:38,552 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:02:38,556 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:02:38,557 INFO L82 PathProgramCache]: Analyzing trace with hash 225777697, now seen corresponding path program 1 times [2018-11-22 22:02:38,558 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 22:02:38,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:02:38,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:02:38,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:02:38,596 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 22:02:38,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:02:38,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:02:38,712 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:02:38,712 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-22 22:02:38,713 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 22:02:38,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-22 22:02:38,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 22:02:38,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-22 22:02:38,731 INFO L87 Difference]: Start difference. First operand 432 states. Second operand 4 states. [2018-11-22 22:02:38,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:02:38,793 INFO L93 Difference]: Finished difference Result 442 states and 1059 transitions. [2018-11-22 22:02:38,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-22 22:02:38,795 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-11-22 22:02:38,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:02:38,804 INFO L225 Difference]: With dead ends: 442 [2018-11-22 22:02:38,804 INFO L226 Difference]: Without dead ends: 225 [2018-11-22 22:02:38,805 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-22 22:02:38,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2018-11-22 22:02:38,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2018-11-22 22:02:38,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2018-11-22 22:02:38,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 522 transitions. [2018-11-22 22:02:38,840 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 522 transitions. Word has length 23 [2018-11-22 22:02:38,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:02:38,840 INFO L480 AbstractCegarLoop]: Abstraction has 225 states and 522 transitions. [2018-11-22 22:02:38,840 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-22 22:02:38,840 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 522 transitions. [2018-11-22 22:02:38,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-22 22:02:38,842 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:02:38,842 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] [2018-11-22 22:02:38,842 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:02:38,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:02:38,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1052719777, now seen corresponding path program 1 times [2018-11-22 22:02:38,842 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 22:02:38,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:02:38,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:02:38,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:02:38,848 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 22:02:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:02:38,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:02:38,910 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:02:38,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-22 22:02:38,910 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 22:02:38,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-22 22:02:38,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-22 22:02:38,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-22 22:02:38,912 INFO L87 Difference]: Start difference. First operand 225 states and 522 transitions. Second operand 5 states. [2018-11-22 22:02:38,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:02:38,949 INFO L93 Difference]: Finished difference Result 193 states and 414 transitions. [2018-11-22 22:02:38,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 22:02:38,949 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2018-11-22 22:02:38,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:02:38,950 INFO L225 Difference]: With dead ends: 193 [2018-11-22 22:02:38,951 INFO L226 Difference]: Without dead ends: 169 [2018-11-22 22:02:38,951 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-22 22:02:38,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-11-22 22:02:38,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2018-11-22 22:02:38,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-11-22 22:02:38,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 368 transitions. [2018-11-22 22:02:38,962 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 368 transitions. Word has length 24 [2018-11-22 22:02:38,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:02:38,963 INFO L480 AbstractCegarLoop]: Abstraction has 169 states and 368 transitions. [2018-11-22 22:02:38,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-22 22:02:38,963 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 368 transitions. [2018-11-22 22:02:38,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-22 22:02:38,964 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:02:38,964 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] [2018-11-22 22:02:38,964 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:02:38,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:02:38,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1202471141, now seen corresponding path program 1 times [2018-11-22 22:02:38,964 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 22:02:38,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:02:38,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:02:38,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:02:38,968 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 22:02:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:02:39,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:02:39,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:02:39,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-22 22:02:39,037 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 22:02:39,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-22 22:02:39,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-22 22:02:39,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-22 22:02:39,038 INFO L87 Difference]: Start difference. First operand 169 states and 368 transitions. Second operand 6 states. [2018-11-22 22:02:39,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:02:39,095 INFO L93 Difference]: Finished difference Result 265 states and 592 transitions. [2018-11-22 22:02:39,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-22 22:02:39,095 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-22 22:02:39,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:02:39,096 INFO L225 Difference]: With dead ends: 265 [2018-11-22 22:02:39,096 INFO L226 Difference]: Without dead ends: 149 [2018-11-22 22:02:39,096 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-22 22:02:39,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-11-22 22:02:39,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2018-11-22 22:02:39,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-11-22 22:02:39,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 328 transitions. [2018-11-22 22:02:39,103 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 328 transitions. Word has length 25 [2018-11-22 22:02:39,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:02:39,103 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 328 transitions. [2018-11-22 22:02:39,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-22 22:02:39,103 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 328 transitions. [2018-11-22 22:02:39,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-22 22:02:39,104 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 22:02:39,104 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] [2018-11-22 22:02:39,104 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 22:02:39,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:02:39,104 INFO L82 PathProgramCache]: Analyzing trace with hash -6935323, now seen corresponding path program 2 times [2018-11-22 22:02:39,105 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 22:02:39,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:02:39,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:02:39,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:02:39,107 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 22:02:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:02:39,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:02:39,210 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:02:39,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-22 22:02:39,211 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 22:02:39,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-22 22:02:39,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-22 22:02:39,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-11-22 22:02:39,212 INFO L87 Difference]: Start difference. First operand 149 states and 328 transitions. Second operand 9 states. [2018-11-22 22:02:39,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:02:39,276 INFO L93 Difference]: Finished difference Result 117 states and 248 transitions. [2018-11-22 22:02:39,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-22 22:02:39,276 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2018-11-22 22:02:39,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 22:02:39,277 INFO L225 Difference]: With dead ends: 117 [2018-11-22 22:02:39,277 INFO L226 Difference]: Without dead ends: 0 [2018-11-22 22:02:39,277 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-11-22 22:02:39,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-22 22:02:39,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-22 22:02:39,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-22 22:02:39,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-22 22:02:39,277 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-11-22 22:02:39,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 22:02:39,277 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 22:02:39,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-22 22:02:39,278 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-22 22:02:39,278 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 22:02:39,279 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-22 22:02:39,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 10:02:39 BasicIcfg [2018-11-22 22:02:39,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 22:02:39,281 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 22:02:39,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 22:02:39,281 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 22:02:39,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:02:38" (3/4) ... [2018-11-22 22:02:39,284 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 22:02:39,288 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-22 22:02:39,288 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-22 22:02:39,291 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-22 22:02:39,291 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-22 22:02:39,318 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fc47900e-641f-4c2c-b92e-a77e2787feae/bin-2019/utaipan/witness.graphml [2018-11-22 22:02:39,318 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 22:02:39,318 INFO L168 Benchmark]: Toolchain (without parser) took 1511.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 957.6 MB in the beginning and 982.3 MB in the end (delta: -24.7 MB). Peak memory consumption was 106.9 MB. Max. memory is 11.5 GB. [2018-11-22 22:02:39,319 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:02:39,319 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. [2018-11-22 22:02:39,320 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.92 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 22:02:39,320 INFO L168 Benchmark]: Boogie Preprocessor took 16.54 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. [2018-11-22 22:02:39,320 INFO L168 Benchmark]: RCFGBuilder took 223.21 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-11-22 22:02:39,321 INFO L168 Benchmark]: TraceAbstraction took 845.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.0 MB in the end (delta: 99.4 MB). Peak memory consumption was 99.4 MB. Max. memory is 11.5 GB. [2018-11-22 22:02:39,321 INFO L168 Benchmark]: Witness Printer took 37.00 ms. Allocated memory is still 1.2 GB. Free memory was 985.0 MB in the beginning and 982.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 22:02:39,324 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 357.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -154.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.92 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.54 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 223.21 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 845.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.0 MB in the end (delta: 99.4 MB). Peak memory consumption was 99.4 MB. Max. memory is 11.5 GB. * Witness Printer took 37.00 ms. Allocated memory is still 1.2 GB. Free memory was 985.0 MB in the beginning and 982.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 52 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 158 SDtfs, 139 SDslu, 432 SDs, 0 SdLazy, 74 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=432occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 5985 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...