./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe017_tso.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_08cce8f2-c2f6-4414-bffc-a9255ebe5cbc/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_08cce8f2-c2f6-4414-bffc-a9255ebe5cbc/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_08cce8f2-c2f6-4414-bffc-a9255ebe5cbc/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_08cce8f2-c2f6-4414-bffc-a9255ebe5cbc/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe017_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_08cce8f2-c2f6-4414-bffc-a9255ebe5cbc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_08cce8f2-c2f6-4414-bffc-a9255ebe5cbc/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 76149a61cc5865dda484bba829e2e62b466d8677 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:52:26,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:52:26,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:52:26,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:52:26,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:52:26,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:52:26,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:52:26,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:52:26,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:52:26,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:52:26,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:52:26,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:52:26,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:52:26,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:52:26,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:52:26,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:52:26,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:52:26,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:52:26,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:52:26,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:52:26,994 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:52:26,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:52:26,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:52:26,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:52:27,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:52:27,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:52:27,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:52:27,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:52:27,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:52:27,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:52:27,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:52:27,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:52:27,008 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:52:27,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:52:27,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:52:27,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:52:27,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:52:27,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:52:27,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:52:27,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:52:27,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:52:27,014 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_08cce8f2-c2f6-4414-bffc-a9255ebe5cbc/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:52:27,041 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:52:27,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:52:27,052 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:52:27,052 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:52:27,052 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:52:27,053 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:52:27,053 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:52:27,053 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:52:27,053 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:52:27,053 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:52:27,054 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:52:27,054 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:52:27,054 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:52:27,054 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:52:27,055 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:52:27,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:52:27,055 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:52:27,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:52:27,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:52:27,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:52:27,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:52:27,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:52:27,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:52:27,057 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:52:27,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:52:27,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:52:27,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:52:27,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:52:27,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:52:27,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:52:27,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:52:27,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:52:27,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:52:27,060 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:52:27,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:52:27,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:52:27,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:52:27,061 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_08cce8f2-c2f6-4414-bffc-a9255ebe5cbc/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 -> 76149a61cc5865dda484bba829e2e62b466d8677 [2019-11-26 02:52:27,193 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:52:27,207 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:52:27,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:52:27,213 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:52:27,214 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:52:27,214 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_08cce8f2-c2f6-4414-bffc-a9255ebe5cbc/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe017_tso.oepc.i [2019-11-26 02:52:27,274 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_08cce8f2-c2f6-4414-bffc-a9255ebe5cbc/bin/utaipan/data/87d2311b9/96772db939f94e3086404dbc12c6fc62/FLAGaa099b9f5 [2019-11-26 02:52:27,744 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:52:27,745 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_08cce8f2-c2f6-4414-bffc-a9255ebe5cbc/sv-benchmarks/c/pthread-wmm/safe017_tso.oepc.i [2019-11-26 02:52:27,765 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_08cce8f2-c2f6-4414-bffc-a9255ebe5cbc/bin/utaipan/data/87d2311b9/96772db939f94e3086404dbc12c6fc62/FLAGaa099b9f5 [2019-11-26 02:52:28,242 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_08cce8f2-c2f6-4414-bffc-a9255ebe5cbc/bin/utaipan/data/87d2311b9/96772db939f94e3086404dbc12c6fc62 [2019-11-26 02:52:28,245 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:52:28,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:52:28,247 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:52:28,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:52:28,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:52:28,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:52:28" (1/1) ... [2019-11-26 02:52:28,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de307c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:28, skipping insertion in model container [2019-11-26 02:52:28,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:52:28" (1/1) ... [2019-11-26 02:52:28,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:52:28,295 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:52:28,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:52:28,672 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:52:28,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:52:28,814 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:52:28,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:28 WrapperNode [2019-11-26 02:52:28,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:52:28,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:52:28,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:52:28,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:52:28,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:28" (1/1) ... [2019-11-26 02:52:28,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:28" (1/1) ... [2019-11-26 02:52:28,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:52:28,858 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:52:28,858 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:52:28,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:52:28,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:28" (1/1) ... [2019-11-26 02:52:28,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:28" (1/1) ... [2019-11-26 02:52:28,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:28" (1/1) ... [2019-11-26 02:52:28,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:28" (1/1) ... [2019-11-26 02:52:28,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:28" (1/1) ... [2019-11-26 02:52:28,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:28" (1/1) ... [2019-11-26 02:52:28,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:28" (1/1) ... [2019-11-26 02:52:28,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:52:28,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:52:28,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:52:28,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:52:28,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_08cce8f2-c2f6-4414-bffc-a9255ebe5cbc/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 02:52:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:52:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-26 02:52:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:52:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:52:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-26 02:52:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-26 02:52:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-26 02:52:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-26 02:52:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-26 02:52:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-26 02:52:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-26 02:52:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:52:28,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:52:28,956 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 02:52:29,256 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:52:29,257 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:52:29,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:52:29 BoogieIcfgContainer [2019-11-26 02:52:29,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:52:29,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:52:29,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:52:29,261 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:52:29,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:52:28" (1/3) ... [2019-11-26 02:52:29,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64163c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:52:29, skipping insertion in model container [2019-11-26 02:52:29,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:28" (2/3) ... [2019-11-26 02:52:29,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64163c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:52:29, skipping insertion in model container [2019-11-26 02:52:29,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:52:29" (3/3) ... [2019-11-26 02:52:29,265 INFO L109 eAbstractionObserver]: Analyzing ICFG safe017_tso.oepc.i [2019-11-26 02:52:29,307 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,307 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,307 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,307 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,308 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,308 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,308 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,309 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,309 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,309 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,309 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,310 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,310 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,310 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,310 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,311 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,311 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,311 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,311 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,311 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,312 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,312 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,312 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,312 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,312 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,312 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,313 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,313 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,313 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,313 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,313 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,313 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,314 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,314 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,314 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,314 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,315 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,315 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,315 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,315 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,315 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,315 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,316 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,316 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,316 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,316 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,316 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,317 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,317 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,317 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,317 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,317 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,318 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,318 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:52:29,362 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:52:29,362 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:52:29,369 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:52:29,383 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:52:29,403 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:52:29,403 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:52:29,403 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:52:29,403 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:52:29,403 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:52:29,404 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:52:29,404 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:52:29,404 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:52:29,414 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 73 transitions [2019-11-26 02:52:29,556 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1246 states. [2019-11-26 02:52:29,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states. [2019-11-26 02:52:29,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-26 02:52:29,575 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:52:29,578 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] [2019-11-26 02:52:29,578 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:52:29,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:52:29,584 INFO L82 PathProgramCache]: Analyzing trace with hash -257235676, now seen corresponding path program 1 times [2019-11-26 02:52:29,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:52:29,593 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660633888] [2019-11-26 02:52:29,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:52:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:29,905 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 02:52:29,906 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660633888] [2019-11-26 02:52:29,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:52:29,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:52:29,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83121817] [2019-11-26 02:52:29,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:52:29,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:52:29,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:52:29,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:52:29,927 INFO L87 Difference]: Start difference. First operand 1246 states. Second operand 4 states. [2019-11-26 02:52:30,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:52:30,024 INFO L93 Difference]: Finished difference Result 1293 states and 3959 transitions. [2019-11-26 02:52:30,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:52:30,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-11-26 02:52:30,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:52:30,062 INFO L225 Difference]: With dead ends: 1293 [2019-11-26 02:52:30,062 INFO L226 Difference]: Without dead ends: 599 [2019-11-26 02:52:30,064 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 02:52:30,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2019-11-26 02:52:30,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2019-11-26 02:52:30,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2019-11-26 02:52:30,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1774 transitions. [2019-11-26 02:52:30,163 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1774 transitions. Word has length 29 [2019-11-26 02:52:30,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:52:30,171 INFO L462 AbstractCegarLoop]: Abstraction has 599 states and 1774 transitions. [2019-11-26 02:52:30,171 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:52:30,171 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1774 transitions. [2019-11-26 02:52:30,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-26 02:52:30,178 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:52:30,178 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] [2019-11-26 02:52:30,178 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:52:30,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:52:30,178 INFO L82 PathProgramCache]: Analyzing trace with hash -503573346, now seen corresponding path program 1 times [2019-11-26 02:52:30,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:52:30,179 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789836067] [2019-11-26 02:52:30,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:52:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:30,337 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 02:52:30,337 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789836067] [2019-11-26 02:52:30,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:52:30,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 02:52:30,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349337822] [2019-11-26 02:52:30,339 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:52:30,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:52:30,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:52:30,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:52:30,340 INFO L87 Difference]: Start difference. First operand 599 states and 1774 transitions. Second operand 5 states. [2019-11-26 02:52:30,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:52:30,432 INFO L93 Difference]: Finished difference Result 599 states and 1693 transitions. [2019-11-26 02:52:30,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:52:30,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-11-26 02:52:30,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:52:30,441 INFO L225 Difference]: With dead ends: 599 [2019-11-26 02:52:30,442 INFO L226 Difference]: Without dead ends: 536 [2019-11-26 02:52:30,443 INFO L630 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 [2019-11-26 02:52:30,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2019-11-26 02:52:30,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2019-11-26 02:52:30,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2019-11-26 02:52:30,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1543 transitions. [2019-11-26 02:52:30,497 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1543 transitions. Word has length 30 [2019-11-26 02:52:30,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:52:30,498 INFO L462 AbstractCegarLoop]: Abstraction has 536 states and 1543 transitions. [2019-11-26 02:52:30,498 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:52:30,499 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1543 transitions. [2019-11-26 02:52:30,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-26 02:52:30,500 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:52:30,501 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] [2019-11-26 02:52:30,501 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:52:30,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:52:30,501 INFO L82 PathProgramCache]: Analyzing trace with hash -521154612, now seen corresponding path program 1 times [2019-11-26 02:52:30,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:52:30,502 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85295131] [2019-11-26 02:52:30,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:52:30,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:30,626 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 02:52:30,627 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85295131] [2019-11-26 02:52:30,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:52:30,627 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 02:52:30,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631365568] [2019-11-26 02:52:30,628 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:52:30,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:52:30,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:52:30,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:52:30,629 INFO L87 Difference]: Start difference. First operand 536 states and 1543 transitions. Second operand 6 states. [2019-11-26 02:52:30,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:52:30,720 INFO L93 Difference]: Finished difference Result 401 states and 1057 transitions. [2019-11-26 02:52:30,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:52:30,721 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-11-26 02:52:30,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:52:30,725 INFO L225 Difference]: With dead ends: 401 [2019-11-26 02:52:30,725 INFO L226 Difference]: Without dead ends: 347 [2019-11-26 02:52:30,725 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 02:52:30,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2019-11-26 02:52:30,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2019-11-26 02:52:30,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-11-26 02:52:30,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 913 transitions. [2019-11-26 02:52:30,739 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 913 transitions. Word has length 31 [2019-11-26 02:52:30,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:52:30,740 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 913 transitions. [2019-11-26 02:52:30,740 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:52:30,740 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 913 transitions. [2019-11-26 02:52:30,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-26 02:52:30,742 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:52:30,742 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 02:52:30,742 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:52:30,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:52:30,742 INFO L82 PathProgramCache]: Analyzing trace with hash -954980242, now seen corresponding path program 1 times [2019-11-26 02:52:30,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:52:30,743 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897837231] [2019-11-26 02:52:30,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:52:30,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:30,899 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 02:52:30,899 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897837231] [2019-11-26 02:52:30,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:52:30,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 02:52:30,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597150093] [2019-11-26 02:52:30,900 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:52:30,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:52:30,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:52:30,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:52:30,901 INFO L87 Difference]: Start difference. First operand 347 states and 913 transitions. Second operand 6 states. [2019-11-26 02:52:31,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:52:31,027 INFO L93 Difference]: Finished difference Result 563 states and 1498 transitions. [2019-11-26 02:52:31,028 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:52:31,028 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-26 02:52:31,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:52:31,030 INFO L225 Difference]: With dead ends: 563 [2019-11-26 02:52:31,030 INFO L226 Difference]: Without dead ends: 278 [2019-11-26 02:52:31,031 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:52:31,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-11-26 02:52:31,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2019-11-26 02:52:31,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2019-11-26 02:52:31,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 724 transitions. [2019-11-26 02:52:31,044 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 724 transitions. Word has length 32 [2019-11-26 02:52:31,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:52:31,045 INFO L462 AbstractCegarLoop]: Abstraction has 278 states and 724 transitions. [2019-11-26 02:52:31,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:52:31,045 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 724 transitions. [2019-11-26 02:52:31,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-26 02:52:31,051 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:52:31,052 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 02:52:31,052 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:52:31,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:52:31,052 INFO L82 PathProgramCache]: Analyzing trace with hash -544214900, now seen corresponding path program 2 times [2019-11-26 02:52:31,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:52:31,053 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052525503] [2019-11-26 02:52:31,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:52:31,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:31,251 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 02:52:31,251 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052525503] [2019-11-26 02:52:31,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:52:31,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-26 02:52:31,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229932434] [2019-11-26 02:52:31,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:52:31,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:52:31,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:52:31,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:52:31,253 INFO L87 Difference]: Start difference. First operand 278 states and 724 transitions. Second operand 8 states. [2019-11-26 02:52:31,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:52:31,384 INFO L93 Difference]: Finished difference Result 449 states and 1204 transitions. [2019-11-26 02:52:31,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-26 02:52:31,386 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2019-11-26 02:52:31,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:52:31,388 INFO L225 Difference]: With dead ends: 449 [2019-11-26 02:52:31,388 INFO L226 Difference]: Without dead ends: 251 [2019-11-26 02:52:31,389 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:52:31,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2019-11-26 02:52:31,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2019-11-26 02:52:31,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2019-11-26 02:52:31,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 670 transitions. [2019-11-26 02:52:31,401 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 670 transitions. Word has length 32 [2019-11-26 02:52:31,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:52:31,401 INFO L462 AbstractCegarLoop]: Abstraction has 251 states and 670 transitions. [2019-11-26 02:52:31,401 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:52:31,402 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 670 transitions. [2019-11-26 02:52:31,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-26 02:52:31,403 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:52:31,403 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 02:52:31,404 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:52:31,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:52:31,404 INFO L82 PathProgramCache]: Analyzing trace with hash 1408076938, now seen corresponding path program 3 times [2019-11-26 02:52:31,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:52:31,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171480148] [2019-11-26 02:52:31,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:52:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:31,579 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 02:52:31,579 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171480148] [2019-11-26 02:52:31,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:52:31,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-26 02:52:31,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601485032] [2019-11-26 02:52:31,580 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:52:31,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:52:31,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:52:31,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:52:31,580 INFO L87 Difference]: Start difference. First operand 251 states and 670 transitions. Second operand 8 states. [2019-11-26 02:52:31,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:52:31,687 INFO L93 Difference]: Finished difference Result 197 states and 508 transitions. [2019-11-26 02:52:31,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:52:31,687 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2019-11-26 02:52:31,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:52:31,687 INFO L225 Difference]: With dead ends: 197 [2019-11-26 02:52:31,687 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:52:31,688 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:52:31,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:52:31,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:52:31,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:52:31,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:52:31,688 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-11-26 02:52:31,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:52:31,688 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:52:31,689 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:52:31,689 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:52:31,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:52:31,691 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 02:52:31,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:52:31 BasicIcfg [2019-11-26 02:52:31,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:52:31,694 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:52:31,695 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:52:31,695 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:52:31,695 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:52:29" (3/4) ... [2019-11-26 02:52:31,699 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:52:31,707 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-26 02:52:31,707 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-26 02:52:31,708 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-26 02:52:31,722 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-26 02:52:31,737 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:52:31,738 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:52:31,786 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_08cce8f2-c2f6-4414-bffc-a9255ebe5cbc/bin/utaipan/witness.graphml [2019-11-26 02:52:31,787 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:52:31,789 INFO L168 Benchmark]: Toolchain (without parser) took 3542.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -140.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:52:31,789 INFO L168 Benchmark]: CDTParser took 0.23 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 02:52:31,789 INFO L168 Benchmark]: CACSL2BoogieTranslator took 567.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -159.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:52:31,790 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.45 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. [2019-11-26 02:52:31,790 INFO L168 Benchmark]: Boogie Preprocessor took 39.37 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. [2019-11-26 02:52:31,791 INFO L168 Benchmark]: RCFGBuilder took 360.51 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:52:31,795 INFO L168 Benchmark]: TraceAbstraction took 2434.33 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: -16.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:52:31,796 INFO L168 Benchmark]: Witness Printer took 92.19 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 02:52:31,797 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 567.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -159.1 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.37 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 360.51 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2434.33 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: -16.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 92.19 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, 88 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 280 SDtfs, 372 SDslu, 738 SDs, 0 SdLazy, 111 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 16210 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...