./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe034_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_1cd99abb-cc68-43e2-9571-69a6ecfe364c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1cd99abb-cc68-43e2-9571-69a6ecfe364c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1cd99abb-cc68-43e2-9571-69a6ecfe364c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1cd99abb-cc68-43e2-9571-69a6ecfe364c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe034_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1cd99abb-cc68-43e2-9571-69a6ecfe364c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1cd99abb-cc68-43e2-9571-69a6ecfe364c/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 8c69bbcfd18e5b8c38f395482481d046ecc4f930 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:50:44,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:50:44,489 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:50:44,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:50:44,506 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:50:44,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:50:44,509 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:50:44,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:50:44,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:50:44,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:50:44,528 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:50:44,529 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:50:44,529 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:50:44,530 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:50:44,531 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:50:44,532 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:50:44,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:50:44,534 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:50:44,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:50:44,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:50:44,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:50:44,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:50:44,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:50:44,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:50:44,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:50:44,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:50:44,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:50:44,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:50:44,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:50:44,547 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:50:44,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:50:44,548 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:50:44,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:50:44,549 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:50:44,550 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:50:44,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:50:44,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:50:44,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:50:44,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:50:44,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:50:44,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:50:44,553 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1cd99abb-cc68-43e2-9571-69a6ecfe364c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:50:44,567 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:50:44,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:50:44,568 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:50:44,568 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:50:44,569 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:50:44,569 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:50:44,569 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:50:44,569 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:50:44,569 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:50:44,570 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:50:44,570 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:50:44,570 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:50:44,570 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:50:44,570 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:50:44,571 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:50:44,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:50:44,571 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:50:44,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:50:44,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:50:44,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:50:44,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:50:44,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:50:44,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:50:44,573 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:50:44,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:50:44,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:50:44,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:50:44,574 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:50:44,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:50:44,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:50:44,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:50:44,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:50:44,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:50:44,575 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:50:44,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:50:44,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:50:44,576 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:50:44,576 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_1cd99abb-cc68-43e2-9571-69a6ecfe364c/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 -> 8c69bbcfd18e5b8c38f395482481d046ecc4f930 [2019-11-26 02:50:44,772 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:50:44,791 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:50:44,794 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:50:44,796 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:50:44,796 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:50:44,797 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1cd99abb-cc68-43e2-9571-69a6ecfe364c/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe034_tso.oepc.i [2019-11-26 02:50:44,861 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1cd99abb-cc68-43e2-9571-69a6ecfe364c/bin/utaipan/data/c629854a8/00fce75961ce4f189b9d50262ab3186d/FLAG2dad18580 [2019-11-26 02:50:45,271 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:50:45,272 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1cd99abb-cc68-43e2-9571-69a6ecfe364c/sv-benchmarks/c/pthread-wmm/safe034_tso.oepc.i [2019-11-26 02:50:45,284 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1cd99abb-cc68-43e2-9571-69a6ecfe364c/bin/utaipan/data/c629854a8/00fce75961ce4f189b9d50262ab3186d/FLAG2dad18580 [2019-11-26 02:50:45,587 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1cd99abb-cc68-43e2-9571-69a6ecfe364c/bin/utaipan/data/c629854a8/00fce75961ce4f189b9d50262ab3186d [2019-11-26 02:50:45,590 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:50:45,591 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:50:45,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:50:45,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:50:45,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:50:45,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:50:45" (1/1) ... [2019-11-26 02:50:45,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d2a2655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:45, skipping insertion in model container [2019-11-26 02:50:45,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:50:45" (1/1) ... [2019-11-26 02:50:45,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:50:45,652 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:50:46,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:50:46,090 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:50:46,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:50:46,239 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:50:46,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:46 WrapperNode [2019-11-26 02:50:46,240 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:50:46,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:50:46,241 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:50:46,241 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:50:46,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:46" (1/1) ... [2019-11-26 02:50:46,265 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:46" (1/1) ... [2019-11-26 02:50:46,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:50:46,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:50:46,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:50:46,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:50:46,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:46" (1/1) ... [2019-11-26 02:50:46,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:46" (1/1) ... [2019-11-26 02:50:46,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:46" (1/1) ... [2019-11-26 02:50:46,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:46" (1/1) ... [2019-11-26 02:50:46,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:46" (1/1) ... [2019-11-26 02:50:46,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:46" (1/1) ... [2019-11-26 02:50:46,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:46" (1/1) ... [2019-11-26 02:50:46,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:50:46,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:50:46,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:50:46,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:50:46,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1cd99abb-cc68-43e2-9571-69a6ecfe364c/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 02:50:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:50:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-26 02:50:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:50:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:50:46,386 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-26 02:50:46,387 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-26 02:50:46,387 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-26 02:50:46,387 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-26 02:50:46,387 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-26 02:50:46,387 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-26 02:50:46,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-26 02:50:46,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:50:46,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:50:46,391 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 02:50:46,745 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:50:46,745 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:50:46,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:50:46 BoogieIcfgContainer [2019-11-26 02:50:46,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:50:46,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:50:46,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:50:46,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:50:46,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:50:45" (1/3) ... [2019-11-26 02:50:46,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb717d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:50:46, skipping insertion in model container [2019-11-26 02:50:46,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:50:46" (2/3) ... [2019-11-26 02:50:46,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eb717d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:50:46, skipping insertion in model container [2019-11-26 02:50:46,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:50:46" (3/3) ... [2019-11-26 02:50:46,754 INFO L109 eAbstractionObserver]: Analyzing ICFG safe034_tso.oepc.i [2019-11-26 02:50:46,803 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,803 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,803 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,804 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,804 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,804 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,804 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,805 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,805 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,805 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,805 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,805 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,806 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,806 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,806 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,806 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,807 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,807 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,807 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,807 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,808 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,808 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,808 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,808 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,808 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,809 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,809 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,809 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,809 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,809 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,810 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,810 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,810 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,810 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,811 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,811 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,811 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,811 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,811 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,812 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,812 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,812 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,812 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,813 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,813 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,813 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,813 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,813 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,814 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,814 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,814 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,814 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,815 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,815 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:50:46,845 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:50:46,846 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:50:46,853 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:50:46,865 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:50:46,885 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:50:46,885 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:50:46,885 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:50:46,885 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:50:46,886 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:50:46,886 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:50:46,886 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:50:46,886 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:50:46,900 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 75 transitions [2019-11-26 02:50:47,082 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-11-26 02:50:47,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-11-26 02:50:47,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-26 02:50:47,114 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:50:47,115 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 02:50:47,116 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:50:47,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:50:47,122 INFO L82 PathProgramCache]: Analyzing trace with hash 370004633, now seen corresponding path program 1 times [2019-11-26 02:50:47,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:50:47,133 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583754679] [2019-11-26 02:50:47,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:50:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:50:47,548 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 02:50:47,548 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583754679] [2019-11-26 02:50:47,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:50:47,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:50:47,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018716737] [2019-11-26 02:50:47,555 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:50:47,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:50:47,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:50:47,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:50:47,569 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-11-26 02:50:47,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:50:47,723 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-11-26 02:50:47,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:50:47,726 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-11-26 02:50:47,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:50:47,769 INFO L225 Difference]: With dead ends: 1295 [2019-11-26 02:50:47,769 INFO L226 Difference]: Without dead ends: 601 [2019-11-26 02:50:47,771 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 02:50:47,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-11-26 02:50:47,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-11-26 02:50:47,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-11-26 02:50:47,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-11-26 02:50:47,886 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-11-26 02:50:47,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:50:47,886 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-11-26 02:50:47,886 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:50:47,886 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-11-26 02:50:47,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-26 02:50:47,889 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:50:47,889 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 02:50:47,889 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:50:47,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:50:47,889 INFO L82 PathProgramCache]: Analyzing trace with hash 685093083, now seen corresponding path program 1 times [2019-11-26 02:50:47,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:50:47,890 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514332041] [2019-11-26 02:50:47,890 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:50:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:50:48,067 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 02:50:48,067 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514332041] [2019-11-26 02:50:48,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:50:48,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 02:50:48,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176065944] [2019-11-26 02:50:48,069 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:50:48,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:50:48,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:50:48,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:50:48,070 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-11-26 02:50:48,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:50:48,162 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-11-26 02:50:48,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:50:48,162 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-26 02:50:48,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:50:48,167 INFO L225 Difference]: With dead ends: 601 [2019-11-26 02:50:48,167 INFO L226 Difference]: Without dead ends: 538 [2019-11-26 02:50:48,168 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 02:50:48,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-11-26 02:50:48,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-11-26 02:50:48,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-26 02:50:48,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-11-26 02:50:48,192 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-11-26 02:50:48,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:50:48,192 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-11-26 02:50:48,192 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:50:48,192 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-11-26 02:50:48,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-26 02:50:48,194 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:50:48,194 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 02:50:48,194 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:50:48,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:50:48,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1940201297, now seen corresponding path program 1 times [2019-11-26 02:50:48,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:50:48,195 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894860506] [2019-11-26 02:50:48,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:50:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:50:48,355 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 02:50:48,356 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894860506] [2019-11-26 02:50:48,356 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:50:48,356 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 02:50:48,356 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112226385] [2019-11-26 02:50:48,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:50:48,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:50:48,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:50:48,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:50:48,358 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-11-26 02:50:48,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:50:48,463 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-11-26 02:50:48,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:50:48,464 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-26 02:50:48,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:50:48,468 INFO L225 Difference]: With dead ends: 403 [2019-11-26 02:50:48,468 INFO L226 Difference]: Without dead ends: 349 [2019-11-26 02:50:48,469 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-26 02:50:48,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-11-26 02:50:48,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-11-26 02:50:48,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-11-26 02:50:48,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-11-26 02:50:48,484 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-11-26 02:50:48,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:50:48,485 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-11-26 02:50:48,485 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:50:48,485 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-11-26 02:50:48,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 02:50:48,489 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:50:48,490 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 02:50:48,490 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:50:48,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:50:48,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1932300299, now seen corresponding path program 1 times [2019-11-26 02:50:48,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:50:48,491 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720540965] [2019-11-26 02:50:48,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:50:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:50:48,710 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 02:50:48,711 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720540965] [2019-11-26 02:50:48,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:50:48,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 02:50:48,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811427340] [2019-11-26 02:50:48,712 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:50:48,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:50:48,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:50:48,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:50:48,713 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 6 states. [2019-11-26 02:50:48,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:50:48,864 INFO L93 Difference]: Finished difference Result 529 states and 1416 transitions. [2019-11-26 02:50:48,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:50:48,865 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2019-11-26 02:50:48,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:50:48,868 INFO L225 Difference]: With dead ends: 529 [2019-11-26 02:50:48,869 INFO L226 Difference]: Without dead ends: 322 [2019-11-26 02:50:48,870 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 02:50:48,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2019-11-26 02:50:48,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 304. [2019-11-26 02:50:48,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2019-11-26 02:50:48,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 780 transitions. [2019-11-26 02:50:48,883 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 780 transitions. Word has length 34 [2019-11-26 02:50:48,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:50:48,883 INFO L462 AbstractCegarLoop]: Abstraction has 304 states and 780 transitions. [2019-11-26 02:50:48,884 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:50:48,885 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 780 transitions. [2019-11-26 02:50:48,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 02:50:48,890 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:50:48,890 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 02:50:48,890 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:50:48,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:50:48,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1615934497, now seen corresponding path program 2 times [2019-11-26 02:50:48,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:50:48,892 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280513236] [2019-11-26 02:50:48,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:50:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:50:49,093 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 02:50:49,094 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280513236] [2019-11-26 02:50:49,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:50:49,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:50:49,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327840271] [2019-11-26 02:50:49,095 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:50:49,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:50:49,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:50:49,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:50:49,096 INFO L87 Difference]: Start difference. First operand 304 states and 780 transitions. Second operand 7 states. [2019-11-26 02:50:49,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:50:49,286 INFO L93 Difference]: Finished difference Result 475 states and 1260 transitions. [2019-11-26 02:50:49,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:50:49,286 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-11-26 02:50:49,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:50:49,289 INFO L225 Difference]: With dead ends: 475 [2019-11-26 02:50:49,289 INFO L226 Difference]: Without dead ends: 268 [2019-11-26 02:50:49,290 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-26 02:50:49,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2019-11-26 02:50:49,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2019-11-26 02:50:49,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2019-11-26 02:50:49,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 702 transitions. [2019-11-26 02:50:49,319 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 702 transitions. Word has length 34 [2019-11-26 02:50:49,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:50:49,320 INFO L462 AbstractCegarLoop]: Abstraction has 268 states and 702 transitions. [2019-11-26 02:50:49,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:50:49,320 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 702 transitions. [2019-11-26 02:50:49,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 02:50:49,321 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:50:49,321 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 02:50:49,321 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:50:49,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:50:49,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1881521661, now seen corresponding path program 3 times [2019-11-26 02:50:49,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:50:49,322 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779145266] [2019-11-26 02:50:49,323 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:50:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:50:49,453 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 02:50:49,454 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779145266] [2019-11-26 02:50:49,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:50:49,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:50:49,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389210842] [2019-11-26 02:50:49,455 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:50:49,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:50:49,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:50:49,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:50:49,455 INFO L87 Difference]: Start difference. First operand 268 states and 702 transitions. Second operand 7 states. [2019-11-26 02:50:49,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:50:49,575 INFO L93 Difference]: Finished difference Result 223 states and 561 transitions. [2019-11-26 02:50:49,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:50:49,576 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-11-26 02:50:49,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:50:49,576 INFO L225 Difference]: With dead ends: 223 [2019-11-26 02:50:49,576 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:50:49,577 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-26 02:50:49,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:50:49,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:50:49,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:50:49,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:50:49,578 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-11-26 02:50:49,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:50:49,578 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:50:49,578 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:50:49,578 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:50:49,578 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:50:49,581 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 02:50:49,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:50:49 BasicIcfg [2019-11-26 02:50:49,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:50:49,584 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:50:49,584 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:50:49,584 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:50:49,585 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:50:46" (3/4) ... [2019-11-26 02:50:49,589 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:50:49,596 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-26 02:50:49,596 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-26 02:50:49,596 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-26 02:50:49,611 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-26 02:50:49,612 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:50:49,612 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:50:49,655 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1cd99abb-cc68-43e2-9571-69a6ecfe364c/bin/utaipan/witness.graphml [2019-11-26 02:50:49,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:50:49,657 INFO L168 Benchmark]: Toolchain (without parser) took 4065.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:50:49,657 INFO L168 Benchmark]: CDTParser took 0.27 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 02:50:49,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -195.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:50:49,659 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.83 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:50:49,659 INFO L168 Benchmark]: Boogie Preprocessor took 32.66 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 02:50:49,660 INFO L168 Benchmark]: RCFGBuilder took 426.45 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:50:49,660 INFO L168 Benchmark]: TraceAbstraction took 2837.08 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: -10.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:50:49,660 INFO L168 Benchmark]: Witness Printer took 71.13 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:50:49,663 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 648.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 174.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -195.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.83 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.66 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 426.45 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2837.08 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: -10.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 71.13 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: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 90 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 298 SDtfs, 369 SDslu, 753 SDs, 0 SdLazy, 103 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 17184 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...