./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/thin001_pso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_43033380-4b02-4680-947e-fd945646a5ff/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_43033380-4b02-4680-947e-fd945646a5ff/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_43033380-4b02-4680-947e-fd945646a5ff/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_43033380-4b02-4680-947e-fd945646a5ff/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/thin001_pso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_43033380-4b02-4680-947e-fd945646a5ff/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_43033380-4b02-4680-947e-fd945646a5ff/bin/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 980da5cfdd39d90d45ffcdcb93c1ea923e88b32b ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:44:35,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:44:35,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:44:35,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:44:35,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:44:35,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:44:35,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:44:35,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:44:35,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:44:35,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:44:35,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:44:35,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:44:35,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:44:35,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:44:35,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:44:35,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:44:35,326 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:44:35,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:44:35,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:44:35,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:44:35,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:44:35,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:44:35,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:44:35,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:44:35,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:44:35,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:44:35,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:44:35,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:44:35,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:44:35,346 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:44:35,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:44:35,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:44:35,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:44:35,348 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:44:35,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:44:35,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:44:35,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:44:35,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:44:35,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:44:35,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:44:35,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:44:35,353 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_43033380-4b02-4680-947e-fd945646a5ff/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:44:35,377 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:44:35,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:44:35,378 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:44:35,378 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:44:35,378 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:44:35,378 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:44:35,379 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:44:35,379 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:44:35,379 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:44:35,379 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:44:35,379 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:44:35,379 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:44:35,380 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:44:35,380 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:44:35,380 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:44:35,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:44:35,381 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:44:35,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:44:35,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:44:35,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:44:35,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:44:35,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:44:35,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:44:35,382 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:44:35,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:44:35,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:44:35,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:44:35,383 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:44:35,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:44:35,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:44:35,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:44:35,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:44:35,384 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:44:35,384 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:44:35,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:44:35,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:44:35,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:44:35,384 INFO L138 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/run_dir_43033380-4b02-4680-947e-fd945646a5ff/bin/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 -> 980da5cfdd39d90d45ffcdcb93c1ea923e88b32b [2019-11-26 02:44:35,560 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:44:35,577 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:44:35,579 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:44:35,581 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:44:35,581 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:44:35,582 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_43033380-4b02-4680-947e-fd945646a5ff/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/thin001_pso.oepc.i [2019-11-26 02:44:35,646 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_43033380-4b02-4680-947e-fd945646a5ff/bin/utaipan/data/46d12aa19/a029b06ec5164198ab9a1de368b625ad/FLAG8ef2a9cd7 [2019-11-26 02:44:36,053 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:44:36,054 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_43033380-4b02-4680-947e-fd945646a5ff/sv-benchmarks/c/pthread-wmm/thin001_pso.oepc.i [2019-11-26 02:44:36,067 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_43033380-4b02-4680-947e-fd945646a5ff/bin/utaipan/data/46d12aa19/a029b06ec5164198ab9a1de368b625ad/FLAG8ef2a9cd7 [2019-11-26 02:44:36,405 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_43033380-4b02-4680-947e-fd945646a5ff/bin/utaipan/data/46d12aa19/a029b06ec5164198ab9a1de368b625ad [2019-11-26 02:44:36,407 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:44:36,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:44:36,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:44:36,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:44:36,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:44:36,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:44:36" (1/1) ... [2019-11-26 02:44:36,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6af2120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:36, skipping insertion in model container [2019-11-26 02:44:36,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:44:36" (1/1) ... [2019-11-26 02:44:36,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:44:36,462 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:44:36,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:44:36,887 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:44:36,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:44:37,038 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:44:37,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:37 WrapperNode [2019-11-26 02:44:37,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:44:37,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:44:37,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:44:37,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:44:37,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:37" (1/1) ... [2019-11-26 02:44:37,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:37" (1/1) ... [2019-11-26 02:44:37,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:44:37,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:44:37,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:44:37,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:44:37,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:37" (1/1) ... [2019-11-26 02:44:37,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:37" (1/1) ... [2019-11-26 02:44:37,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:37" (1/1) ... [2019-11-26 02:44:37,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:37" (1/1) ... [2019-11-26 02:44:37,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:37" (1/1) ... [2019-11-26 02:44:37,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:37" (1/1) ... [2019-11-26 02:44:37,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:37" (1/1) ... [2019-11-26 02:44:37,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:44:37,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:44:37,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:44:37,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:44:37,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_43033380-4b02-4680-947e-fd945646a5ff/bin/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 [2019-11-26 02:44:37,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:44:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-26 02:44:37,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:44:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:44:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-26 02:44:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-26 02:44:37,239 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-26 02:44:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-26 02:44:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-26 02:44:37,240 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-26 02:44:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-26 02:44:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:44:37,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:44:37,242 WARN L202 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-26 02:44:37,581 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:44:37,581 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:44:37,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:44:37 BoogieIcfgContainer [2019-11-26 02:44:37,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:44:37,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:44:37,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:44:37,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:44:37,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:44:36" (1/3) ... [2019-11-26 02:44:37,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5530a994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:44:37, skipping insertion in model container [2019-11-26 02:44:37,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:44:37" (2/3) ... [2019-11-26 02:44:37,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5530a994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:44:37, skipping insertion in model container [2019-11-26 02:44:37,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:44:37" (3/3) ... [2019-11-26 02:44:37,589 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_pso.oepc.i [2019-11-26 02:44:37,652 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,653 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,653 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,653 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,653 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,653 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,654 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,654 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,655 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,655 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,655 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,655 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,656 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,656 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,656 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,656 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,656 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,657 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,657 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,657 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,658 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,658 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,658 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,658 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,658 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,659 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,659 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,659 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,659 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,659 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,660 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,660 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,660 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,661 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,661 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,662 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,662 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,662 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,662 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,662 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,665 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,666 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,666 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,666 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,667 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,667 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,667 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,667 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,668 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,668 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,668 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,668 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,668 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,669 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:44:37,704 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:44:37,705 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:44:37,711 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:44:37,722 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:44:37,740 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:44:37,741 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:44:37,741 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:44:37,741 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:44:37,741 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:44:37,741 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:44:37,742 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:44:37,742 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:44:37,754 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 97 places, 76 transitions [2019-11-26 02:44:37,912 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1249 states. [2019-11-26 02:44:37,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states. [2019-11-26 02:44:37,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-26 02:44:37,943 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:44:37,944 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:44:37,944 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:44:37,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:44:37,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1516766294, now seen corresponding path program 1 times [2019-11-26 02:44:37,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:44:37,959 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687189956] [2019-11-26 02:44:37,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:44:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:44:38,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:44:38,298 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687189956] [2019-11-26 02:44:38,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:44:38,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:44:38,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519556044] [2019-11-26 02:44:38,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:44:38,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:44:38,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:44:38,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:44:38,315 INFO L87 Difference]: Start difference. First operand 1249 states. Second operand 4 states. [2019-11-26 02:44:38,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:44:38,415 INFO L93 Difference]: Finished difference Result 1296 states and 3962 transitions. [2019-11-26 02:44:38,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:44:38,417 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-11-26 02:44:38,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:44:38,438 INFO L225 Difference]: With dead ends: 1296 [2019-11-26 02:44:38,438 INFO L226 Difference]: Without dead ends: 602 [2019-11-26 02:44:38,440 INFO L630 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 [2019-11-26 02:44:38,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2019-11-26 02:44:38,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 602. [2019-11-26 02:44:38,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 602 states. [2019-11-26 02:44:38,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 1777 transitions. [2019-11-26 02:44:38,535 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 1777 transitions. Word has length 32 [2019-11-26 02:44:38,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:44:38,535 INFO L462 AbstractCegarLoop]: Abstraction has 602 states and 1777 transitions. [2019-11-26 02:44:38,535 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:44:38,536 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 1777 transitions. [2019-11-26 02:44:38,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-26 02:44:38,538 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:44:38,538 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:44:38,538 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:44:38,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:44:38,539 INFO L82 PathProgramCache]: Analyzing trace with hash 133649582, now seen corresponding path program 1 times [2019-11-26 02:44:38,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:44:38,539 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095078864] [2019-11-26 02:44:38,539 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:44:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:44:38,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:44:38,690 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095078864] [2019-11-26 02:44:38,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:44:38,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 02:44:38,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527118125] [2019-11-26 02:44:38,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:44:38,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:44:38,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:44:38,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:44:38,693 INFO L87 Difference]: Start difference. First operand 602 states and 1777 transitions. Second operand 5 states. [2019-11-26 02:44:38,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:44:38,796 INFO L93 Difference]: Finished difference Result 602 states and 1696 transitions. [2019-11-26 02:44:38,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:44:38,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2019-11-26 02:44:38,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:44:38,807 INFO L225 Difference]: With dead ends: 602 [2019-11-26 02:44:38,807 INFO L226 Difference]: Without dead ends: 539 [2019-11-26 02:44:38,808 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:44:38,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-11-26 02:44:38,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2019-11-26 02:44:38,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2019-11-26 02:44:38,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 1546 transitions. [2019-11-26 02:44:38,859 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 1546 transitions. Word has length 33 [2019-11-26 02:44:38,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:44:38,859 INFO L462 AbstractCegarLoop]: Abstraction has 539 states and 1546 transitions. [2019-11-26 02:44:38,859 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:44:38,859 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 1546 transitions. [2019-11-26 02:44:38,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 02:44:38,861 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:44:38,862 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:44:38,862 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:44:38,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:44:38,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1242473568, now seen corresponding path program 1 times [2019-11-26 02:44:38,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:44:38,863 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604670278] [2019-11-26 02:44:38,863 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:44:38,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:44:39,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:44:39,020 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604670278] [2019-11-26 02:44:39,020 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:44:39,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 02:44:39,021 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122674276] [2019-11-26 02:44:39,021 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:44:39,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:44:39,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:44:39,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:44:39,022 INFO L87 Difference]: Start difference. First operand 539 states and 1546 transitions. Second operand 6 states. [2019-11-26 02:44:39,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:44:39,119 INFO L93 Difference]: Finished difference Result 404 states and 1060 transitions. [2019-11-26 02:44:39,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:44:39,120 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-11-26 02:44:39,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:44:39,123 INFO L225 Difference]: With dead ends: 404 [2019-11-26 02:44:39,123 INFO L226 Difference]: Without dead ends: 350 [2019-11-26 02:44:39,124 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:44:39,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-11-26 02:44:39,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 350. [2019-11-26 02:44:39,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-11-26 02:44:39,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 916 transitions. [2019-11-26 02:44:39,138 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 916 transitions. Word has length 34 [2019-11-26 02:44:39,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:44:39,138 INFO L462 AbstractCegarLoop]: Abstraction has 350 states and 916 transitions. [2019-11-26 02:44:39,139 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:44:39,139 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 916 transitions. [2019-11-26 02:44:39,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-26 02:44:39,140 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:44:39,141 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:44:39,141 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:44:39,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:44:39,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1475421620, now seen corresponding path program 1 times [2019-11-26 02:44:39,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:44:39,142 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294359060] [2019-11-26 02:44:39,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:44:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:44:39,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:44:39,316 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294359060] [2019-11-26 02:44:39,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:44:39,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-26 02:44:39,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711077968] [2019-11-26 02:44:39,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:44:39,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:44:39,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:44:39,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:44:39,318 INFO L87 Difference]: Start difference. First operand 350 states and 916 transitions. Second operand 8 states. [2019-11-26 02:44:39,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:44:39,469 INFO L93 Difference]: Finished difference Result 521 states and 1396 transitions. [2019-11-26 02:44:39,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:44:39,470 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-26 02:44:39,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:44:39,472 INFO L225 Difference]: With dead ends: 521 [2019-11-26 02:44:39,473 INFO L226 Difference]: Without dead ends: 278 [2019-11-26 02:44:39,473 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:44:39,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-11-26 02:44:39,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-11-26 02:44:39,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-11-26 02:44:39,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 727 transitions. [2019-11-26 02:44:39,487 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 727 transitions. Word has length 35 [2019-11-26 02:44:39,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:44:39,487 INFO L462 AbstractCegarLoop]: Abstraction has 278 states and 727 transitions. [2019-11-26 02:44:39,487 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:44:39,487 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 727 transitions. [2019-11-26 02:44:39,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-26 02:44:39,491 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:44:39,492 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:44:39,492 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:44:39,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:44:39,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1440827028, now seen corresponding path program 2 times [2019-11-26 02:44:39,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:44:39,493 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081703157] [2019-11-26 02:44:39,493 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:44:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:44:39,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:44:39,696 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081703157] [2019-11-26 02:44:39,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:44:39,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-26 02:44:39,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388455033] [2019-11-26 02:44:39,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:44:39,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:44:39,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:44:39,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:44:39,698 INFO L87 Difference]: Start difference. First operand 278 states and 727 transitions. Second operand 8 states. [2019-11-26 02:44:39,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:44:39,845 INFO L93 Difference]: Finished difference Result 449 states and 1207 transitions. [2019-11-26 02:44:39,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:44:39,847 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-26 02:44:39,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:44:39,866 INFO L225 Difference]: With dead ends: 449 [2019-11-26 02:44:39,866 INFO L226 Difference]: Without dead ends: 266 [2019-11-26 02:44:39,866 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:44:39,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2019-11-26 02:44:39,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2019-11-26 02:44:39,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2019-11-26 02:44:39,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 697 transitions. [2019-11-26 02:44:39,875 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 697 transitions. Word has length 35 [2019-11-26 02:44:39,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:44:39,876 INFO L462 AbstractCegarLoop]: Abstraction has 266 states and 697 transitions. [2019-11-26 02:44:39,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:44:39,876 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 697 transitions. [2019-11-26 02:44:39,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-26 02:44:39,877 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:44:39,877 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:44:39,877 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:44:39,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:44:39,877 INFO L82 PathProgramCache]: Analyzing trace with hash 2124924496, now seen corresponding path program 3 times [2019-11-26 02:44:39,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:44:39,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750218367] [2019-11-26 02:44:39,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:44:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:44:40,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:44:40,036 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750218367] [2019-11-26 02:44:40,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:44:40,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-26 02:44:40,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886074412] [2019-11-26 02:44:40,037 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:44:40,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:44:40,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:44:40,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:44:40,038 INFO L87 Difference]: Start difference. First operand 266 states and 697 transitions. Second operand 8 states. [2019-11-26 02:44:40,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:44:40,132 INFO L93 Difference]: Finished difference Result 212 states and 535 transitions. [2019-11-26 02:44:40,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:44:40,132 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-26 02:44:40,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:44:40,133 INFO L225 Difference]: With dead ends: 212 [2019-11-26 02:44:40,133 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:44:40,133 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:44:40,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:44:40,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:44:40,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:44:40,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:44:40,134 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-11-26 02:44:40,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:44:40,134 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:44:40,134 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:44:40,134 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:44:40,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:44:40,138 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 02:44:40,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:44:40 BasicIcfg [2019-11-26 02:44:40,140 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:44:40,141 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:44:40,141 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:44:40,141 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:44:40,141 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:44:37" (3/4) ... [2019-11-26 02:44:40,145 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:44:40,155 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-26 02:44:40,155 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-26 02:44:40,155 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-26 02:44:40,166 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-26 02:44:40,166 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:44:40,167 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:44:40,221 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_43033380-4b02-4680-947e-fd945646a5ff/bin/utaipan/witness.graphml [2019-11-26 02:44:40,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:44:40,225 INFO L168 Benchmark]: Toolchain (without parser) took 3816.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.9 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -193.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:44:40,225 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:44:40,226 INFO L168 Benchmark]: CACSL2BoogieTranslator took 630.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.9 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -213.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:40,226 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:44:40,227 INFO L168 Benchmark]: Boogie Preprocessor took 55.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:44:40,227 INFO L168 Benchmark]: RCFGBuilder took 412.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:40,227 INFO L168 Benchmark]: TraceAbstraction took 2556.78 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: -14.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:44:40,228 INFO L168 Benchmark]: Witness Printer took 82.94 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:44:40,230 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 630.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.9 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -213.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 74.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 55.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 412.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2556.78 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: -14.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 82.94 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: 6.9 MB). Peak memory consumption was 6.9 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 13 procedures, 91 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 284 SDtfs, 399 SDslu, 770 SDs, 0 SdLazy, 114 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1249occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 198 ConstructedInterpolants, 0 QuantifiedInterpolants, 21102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...