./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe021_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_2ee25f89-9cf7-424e-913d-0892e12b0dd8/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2ee25f89-9cf7-424e-913d-0892e12b0dd8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2ee25f89-9cf7-424e-913d-0892e12b0dd8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2ee25f89-9cf7-424e-913d-0892e12b0dd8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe021_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_2ee25f89-9cf7-424e-913d-0892e12b0dd8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2ee25f89-9cf7-424e-913d-0892e12b0dd8/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 44b21a1db6f785b0e07ec1032c8a208e58f8890d ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:35:18,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:35:18,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:35:18,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:35:18,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:35:18,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:35:18,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:35:18,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:35:18,615 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:35:18,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:35:18,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:35:18,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:35:18,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:35:18,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:35:18,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:35:18,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:35:18,626 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:35:18,628 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:35:18,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:35:18,635 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:35:18,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:35:18,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:35:18,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:35:18,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:35:18,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:35:18,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:35:18,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:35:18,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:35:18,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:35:18,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:35:18,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:35:18,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:35:18,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:35:18,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:35:18,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:35:18,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:35:18,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:35:18,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:35:18,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:35:18,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:35:18,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:35:18,659 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2ee25f89-9cf7-424e-913d-0892e12b0dd8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:35:18,676 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:35:18,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:35:18,677 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:35:18,677 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:35:18,677 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:35:18,677 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:35:18,678 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:35:18,678 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:35:18,678 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:35:18,678 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:35:18,679 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:35:18,680 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:35:18,680 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:35:18,680 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:35:18,680 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:35:18,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:35:18,681 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:35:18,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:35:18,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:35:18,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:35:18,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:35:18,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:35:18,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:35:18,683 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:35:18,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:35:18,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:35:18,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:35:18,684 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:35:18,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:35:18,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:35:18,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:35:18,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:35:18,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:35:18,685 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:35:18,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:35:18,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:35:18,686 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:35:18,686 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_2ee25f89-9cf7-424e-913d-0892e12b0dd8/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 -> 44b21a1db6f785b0e07ec1032c8a208e58f8890d [2019-11-26 02:35:18,818 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:35:18,832 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:35:18,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:35:18,839 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:35:18,840 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:35:18,840 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2ee25f89-9cf7-424e-913d-0892e12b0dd8/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe021_tso.oepc.i [2019-11-26 02:35:18,898 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2ee25f89-9cf7-424e-913d-0892e12b0dd8/bin/utaipan/data/486bb8671/68e8f8c1b7714555b9ab9737256023eb/FLAG43e5e9a44 [2019-11-26 02:35:19,322 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:35:19,322 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2ee25f89-9cf7-424e-913d-0892e12b0dd8/sv-benchmarks/c/pthread-wmm/safe021_tso.oepc.i [2019-11-26 02:35:19,341 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2ee25f89-9cf7-424e-913d-0892e12b0dd8/bin/utaipan/data/486bb8671/68e8f8c1b7714555b9ab9737256023eb/FLAG43e5e9a44 [2019-11-26 02:35:19,631 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2ee25f89-9cf7-424e-913d-0892e12b0dd8/bin/utaipan/data/486bb8671/68e8f8c1b7714555b9ab9737256023eb [2019-11-26 02:35:19,633 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:35:19,634 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:35:19,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:35:19,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:35:19,639 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:35:19,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:35:19" (1/1) ... [2019-11-26 02:35:19,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@568b4aa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:19, skipping insertion in model container [2019-11-26 02:35:19,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:35:19" (1/1) ... [2019-11-26 02:35:19,649 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:35:19,704 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:35:20,131 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:35:20,145 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:35:20,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:35:20,296 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:35:20,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:20 WrapperNode [2019-11-26 02:35:20,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:35:20,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:35:20,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:35:20,298 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:35:20,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:20" (1/1) ... [2019-11-26 02:35:20,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:20" (1/1) ... [2019-11-26 02:35:20,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:35:20,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:35:20,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:35:20,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:35:20,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:20" (1/1) ... [2019-11-26 02:35:20,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:20" (1/1) ... [2019-11-26 02:35:20,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:20" (1/1) ... [2019-11-26 02:35:20,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:20" (1/1) ... [2019-11-26 02:35:20,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:20" (1/1) ... [2019-11-26 02:35:20,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:20" (1/1) ... [2019-11-26 02:35:20,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:20" (1/1) ... [2019-11-26 02:35:20,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:35:20,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:35:20,381 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:35:20,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:35:20,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2ee25f89-9cf7-424e-913d-0892e12b0dd8/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 02:35:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:35:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-26 02:35:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:35:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:35:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-26 02:35:20,453 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-26 02:35:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-26 02:35:20,454 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-26 02:35:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-26 02:35:20,454 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-26 02:35:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-26 02:35:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:35:20,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:35:20,455 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 02:35:20,719 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:35:20,720 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:35:20,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:35:20 BoogieIcfgContainer [2019-11-26 02:35:20,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:35:20,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:35:20,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:35:20,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:35:20,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:35:19" (1/3) ... [2019-11-26 02:35:20,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ac7665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:35:20, skipping insertion in model container [2019-11-26 02:35:20,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:35:20" (2/3) ... [2019-11-26 02:35:20,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32ac7665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:35:20, skipping insertion in model container [2019-11-26 02:35:20,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:35:20" (3/3) ... [2019-11-26 02:35:20,727 INFO L109 eAbstractionObserver]: Analyzing ICFG safe021_tso.oepc.i [2019-11-26 02:35:20,771 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,772 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,772 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,772 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,773 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,773 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,773 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,773 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,774 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,774 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,774 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,774 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,775 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,775 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,775 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,775 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,776 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,776 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,776 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,777 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,777 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,777 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,777 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,777 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,778 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,778 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,778 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,779 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,779 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,779 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,779 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,780 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,780 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,780 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,780 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,781 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,781 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,781 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,782 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,782 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,782 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,782 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,783 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,783 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,783 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,783 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,784 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,784 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,784 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,784 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,785 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,785 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,785 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,785 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:35:20,807 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:35:20,807 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:35:20,813 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:35:20,821 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:35:20,834 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:35:20,834 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:35:20,835 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:35:20,835 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:35:20,835 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:35:20,835 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:35:20,835 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:35:20,836 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:35:20,845 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 75 transitions [2019-11-26 02:35:20,981 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-11-26 02:35:20,984 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-11-26 02:35:20,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-26 02:35:20,997 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:35:20,998 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 02:35:20,999 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:35:21,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:35:21,004 INFO L82 PathProgramCache]: Analyzing trace with hash 644822426, now seen corresponding path program 1 times [2019-11-26 02:35:21,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:35:21,012 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5818413] [2019-11-26 02:35:21,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:35:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:35:21,307 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 02:35:21,308 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5818413] [2019-11-26 02:35:21,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:35:21,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:35:21,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590164479] [2019-11-26 02:35:21,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:35:21,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:35:21,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:35:21,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:35:21,328 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-11-26 02:35:21,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:35:21,428 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-11-26 02:35:21,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:35:21,430 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-11-26 02:35:21,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:35:21,461 INFO L225 Difference]: With dead ends: 1295 [2019-11-26 02:35:21,461 INFO L226 Difference]: Without dead ends: 601 [2019-11-26 02:35:21,464 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 02:35:21,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-11-26 02:35:21,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-11-26 02:35:21,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-11-26 02:35:21,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-11-26 02:35:21,565 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-11-26 02:35:21,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:35:21,566 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-11-26 02:35:21,566 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:35:21,566 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-11-26 02:35:21,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-26 02:35:21,570 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:35:21,570 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 02:35:21,570 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:35:21,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:35:21,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1114092486, now seen corresponding path program 1 times [2019-11-26 02:35:21,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:35:21,571 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068225258] [2019-11-26 02:35:21,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:35:21,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:35:21,671 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 02:35:21,671 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068225258] [2019-11-26 02:35:21,671 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:35:21,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 02:35:21,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528001735] [2019-11-26 02:35:21,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:35:21,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:35:21,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:35:21,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:35:21,673 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-11-26 02:35:21,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:35:21,741 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-11-26 02:35:21,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:35:21,742 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-26 02:35:21,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:35:21,746 INFO L225 Difference]: With dead ends: 601 [2019-11-26 02:35:21,746 INFO L226 Difference]: Without dead ends: 538 [2019-11-26 02:35:21,747 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 02:35:21,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-11-26 02:35:21,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-11-26 02:35:21,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-26 02:35:21,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-11-26 02:35:21,768 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-11-26 02:35:21,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:35:21,769 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-11-26 02:35:21,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:35:21,769 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-11-26 02:35:21,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-26 02:35:21,771 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:35:21,771 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 02:35:21,771 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:35:21,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:35:21,772 INFO L82 PathProgramCache]: Analyzing trace with hash 685985648, now seen corresponding path program 1 times [2019-11-26 02:35:21,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:35:21,772 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585768879] [2019-11-26 02:35:21,772 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:35:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:35:21,883 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 02:35:21,884 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585768879] [2019-11-26 02:35:21,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:35:21,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 02:35:21,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896605037] [2019-11-26 02:35:21,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:35:21,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:35:21,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:35:21,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:35:21,886 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-11-26 02:35:21,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:35:21,973 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-11-26 02:35:21,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:35:21,973 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-26 02:35:21,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:35:21,976 INFO L225 Difference]: With dead ends: 403 [2019-11-26 02:35:21,976 INFO L226 Difference]: Without dead ends: 349 [2019-11-26 02:35:21,977 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 02:35:21,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-11-26 02:35:21,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-11-26 02:35:21,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-11-26 02:35:21,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-11-26 02:35:21,988 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-11-26 02:35:21,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:35:21,989 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-11-26 02:35:21,989 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:35:21,989 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-11-26 02:35:21,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 02:35:21,990 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:35:21,991 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 02:35:21,991 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:35:21,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:35:21,991 INFO L82 PathProgramCache]: Analyzing trace with hash 2035368650, now seen corresponding path program 1 times [2019-11-26 02:35:21,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:35:21,992 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967790998] [2019-11-26 02:35:21,992 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:35:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:35:22,149 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 02:35:22,149 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967790998] [2019-11-26 02:35:22,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:35:22,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:35:22,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471281353] [2019-11-26 02:35:22,150 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:35:22,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:35:22,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:35:22,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:35:22,151 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-11-26 02:35:22,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:35:22,326 INFO L93 Difference]: Finished difference Result 556 states and 1479 transitions. [2019-11-26 02:35:22,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-26 02:35:22,327 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-11-26 02:35:22,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:35:22,330 INFO L225 Difference]: With dead ends: 556 [2019-11-26 02:35:22,330 INFO L226 Difference]: Without dead ends: 280 [2019-11-26 02:35:22,330 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 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 02:35:22,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2019-11-26 02:35:22,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2019-11-26 02:35:22,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-11-26 02:35:22,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 726 transitions. [2019-11-26 02:35:22,347 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 726 transitions. Word has length 34 [2019-11-26 02:35:22,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:35:22,348 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 726 transitions. [2019-11-26 02:35:22,348 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:35:22,349 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 726 transitions. [2019-11-26 02:35:22,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 02:35:22,352 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:35:22,353 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 02:35:22,353 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:35:22,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:35:22,353 INFO L82 PathProgramCache]: Analyzing trace with hash 46374848, now seen corresponding path program 2 times [2019-11-26 02:35:22,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:35:22,354 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703734246] [2019-11-26 02:35:22,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:35:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:35:22,523 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 02:35:22,523 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703734246] [2019-11-26 02:35:22,523 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:35:22,524 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-26 02:35:22,524 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030499484] [2019-11-26 02:35:22,524 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:35:22,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:35:22,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:35:22,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:35:22,525 INFO L87 Difference]: Start difference. First operand 280 states and 726 transitions. Second operand 8 states. [2019-11-26 02:35:22,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:35:22,684 INFO L93 Difference]: Finished difference Result 451 states and 1206 transitions. [2019-11-26 02:35:22,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-26 02:35:22,685 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-26 02:35:22,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:35:22,687 INFO L225 Difference]: With dead ends: 451 [2019-11-26 02:35:22,687 INFO L226 Difference]: Without dead ends: 253 [2019-11-26 02:35:22,687 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2019-11-26 02:35:22,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-11-26 02:35:22,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2019-11-26 02:35:22,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2019-11-26 02:35:22,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 672 transitions. [2019-11-26 02:35:22,698 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 672 transitions. Word has length 34 [2019-11-26 02:35:22,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:35:22,698 INFO L462 AbstractCegarLoop]: Abstraction has 253 states and 672 transitions. [2019-11-26 02:35:22,698 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:35:22,699 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 672 transitions. [2019-11-26 02:35:22,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-26 02:35:22,699 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:35:22,700 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 02:35:22,700 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:35:22,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:35:22,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1031875116, now seen corresponding path program 3 times [2019-11-26 02:35:22,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:35:22,701 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171759724] [2019-11-26 02:35:22,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:35:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:35:22,878 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 02:35:22,879 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171759724] [2019-11-26 02:35:22,879 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:35:22,879 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-26 02:35:22,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009861966] [2019-11-26 02:35:22,880 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:35:22,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:35:22,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:35:22,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:35:22,880 INFO L87 Difference]: Start difference. First operand 253 states and 672 transitions. Second operand 8 states. [2019-11-26 02:35:22,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:35:22,970 INFO L93 Difference]: Finished difference Result 199 states and 510 transitions. [2019-11-26 02:35:22,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:35:22,971 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-26 02:35:22,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:35:22,971 INFO L225 Difference]: With dead ends: 199 [2019-11-26 02:35:22,971 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:35:22,971 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-26 02:35:22,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:35:22,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:35:22,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:35:22,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:35:22,972 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-11-26 02:35:22,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:35:22,972 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:35:22,972 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:35:22,972 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:35:22,973 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:35:22,975 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 02:35:22,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:35:22 BasicIcfg [2019-11-26 02:35:22,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:35:22,981 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:35:22,981 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:35:22,982 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:35:22,982 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:35:20" (3/4) ... [2019-11-26 02:35:22,985 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:35:22,993 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-26 02:35:22,994 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-26 02:35:22,994 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-26 02:35:23,009 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-26 02:35:23,025 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:35:23,025 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:35:23,064 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2ee25f89-9cf7-424e-913d-0892e12b0dd8/bin/utaipan/witness.graphml [2019-11-26 02:35:23,064 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:35:23,066 INFO L168 Benchmark]: Toolchain (without parser) took 3430.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -168.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:35:23,066 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:35:23,067 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:35:23,067 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.28 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 02:35:23,067 INFO L168 Benchmark]: Boogie Preprocessor took 40.08 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 02:35:23,068 INFO L168 Benchmark]: RCFGBuilder took 339.66 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 02:35:23,068 INFO L168 Benchmark]: TraceAbstraction took 2258.77 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: -9.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:35:23,068 INFO L168 Benchmark]: Witness Printer took 82.79 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 02:35:23,071 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 661.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -193.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.28 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 40.08 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 339.66 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 2258.77 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: -9.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 82.79 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, 90 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 307 SDtfs, 414 SDslu, 843 SDs, 0 SdLazy, 110 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 18768 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...