./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe001_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_f4b610f9-65e0-4d72-898d-dff16ffa383c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f4b610f9-65e0-4d72-898d-dff16ffa383c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f4b610f9-65e0-4d72-898d-dff16ffa383c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f4b610f9-65e0-4d72-898d-dff16ffa383c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f4b610f9-65e0-4d72-898d-dff16ffa383c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f4b610f9-65e0-4d72-898d-dff16ffa383c/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 185346c539430585f07637e43725e730308f06de ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:20:31,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:20:31,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:20:31,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:20:31,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:20:31,296 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:20:31,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:20:31,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:20:31,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:20:31,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:20:31,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:20:31,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:20:31,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:20:31,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:20:31,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:20:31,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:20:31,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:20:31,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:20:31,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:20:31,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:20:31,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:20:31,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:20:31,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:20:31,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:20:31,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:20:31,340 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:20:31,340 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:20:31,341 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:20:31,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:20:31,343 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:20:31,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:20:31,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:20:31,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:20:31,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:20:31,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:20:31,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:20:31,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:20:31,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:20:31,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:20:31,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:20:31,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:20:31,349 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f4b610f9-65e0-4d72-898d-dff16ffa383c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:20:31,373 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:20:31,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:20:31,383 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:20:31,383 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:20:31,383 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:20:31,383 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:20:31,383 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:20:31,384 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:20:31,384 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:20:31,384 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:20:31,384 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:20:31,385 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:20:31,385 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:20:31,385 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:20:31,386 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:20:31,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:20:31,386 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:20:31,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:20:31,387 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:20:31,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:20:31,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:20:31,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:20:31,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:20:31,388 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:20:31,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:20:31,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:20:31,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:20:31,389 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:20:31,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:20:31,390 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:20:31,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:20:31,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:20:31,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:20:31,391 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:20:31,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:20:31,391 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:20:31,392 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:20:31,392 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_f4b610f9-65e0-4d72-898d-dff16ffa383c/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 -> 185346c539430585f07637e43725e730308f06de [2019-11-26 02:20:31,563 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:20:31,574 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:20:31,577 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:20:31,578 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:20:31,578 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:20:31,579 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f4b610f9-65e0-4d72-898d-dff16ffa383c/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.i [2019-11-26 02:20:31,628 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f4b610f9-65e0-4d72-898d-dff16ffa383c/bin/utaipan/data/add1c7f91/2716050f5cba4a3199b47c36a4cd7540/FLAG8476ec1d2 [2019-11-26 02:20:32,105 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:20:32,106 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f4b610f9-65e0-4d72-898d-dff16ffa383c/sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.i [2019-11-26 02:20:32,118 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f4b610f9-65e0-4d72-898d-dff16ffa383c/bin/utaipan/data/add1c7f91/2716050f5cba4a3199b47c36a4cd7540/FLAG8476ec1d2 [2019-11-26 02:20:32,130 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f4b610f9-65e0-4d72-898d-dff16ffa383c/bin/utaipan/data/add1c7f91/2716050f5cba4a3199b47c36a4cd7540 [2019-11-26 02:20:32,132 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:20:32,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:20:32,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:20:32,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:20:32,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:20:32,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:20:32" (1/1) ... [2019-11-26 02:20:32,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a28af2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:20:32, skipping insertion in model container [2019-11-26 02:20:32,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:20:32" (1/1) ... [2019-11-26 02:20:32,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:20:32,210 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:20:32,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:20:32,626 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:20:32,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:20:32,744 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:20:32,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:20:32 WrapperNode [2019-11-26 02:20:32,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:20:32,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:20:32,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:20:32,745 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:20:32,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:20:32" (1/1) ... [2019-11-26 02:20:32,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:20:32" (1/1) ... [2019-11-26 02:20:32,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:20:32,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:20:32,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:20:32,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:20:32,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:20:32" (1/1) ... [2019-11-26 02:20:32,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:20:32" (1/1) ... [2019-11-26 02:20:32,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:20:32" (1/1) ... [2019-11-26 02:20:32,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:20:32" (1/1) ... [2019-11-26 02:20:32,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:20:32" (1/1) ... [2019-11-26 02:20:32,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:20:32" (1/1) ... [2019-11-26 02:20:32,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:20:32" (1/1) ... [2019-11-26 02:20:32,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:20:32,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:20:32,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:20:32,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:20:32,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:20:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f4b610f9-65e0-4d72-898d-dff16ffa383c/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 02:20:32,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:20:32,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-26 02:20:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:20:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:20:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-26 02:20:32,873 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-26 02:20:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-26 02:20:32,874 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-26 02:20:32,874 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-26 02:20:32,874 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-26 02:20:32,874 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-26 02:20:32,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:20:32,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:20:32,876 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 02:20:33,176 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:20:33,176 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 02:20:33,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:20:33 BoogieIcfgContainer [2019-11-26 02:20:33,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:20:33,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:20:33,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:20:33,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:20:33,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:20:32" (1/3) ... [2019-11-26 02:20:33,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a73a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:20:33, skipping insertion in model container [2019-11-26 02:20:33,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:20:32" (2/3) ... [2019-11-26 02:20:33,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60a73a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:20:33, skipping insertion in model container [2019-11-26 02:20:33,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:20:33" (3/3) ... [2019-11-26 02:20:33,185 INFO L109 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i [2019-11-26 02:20:33,243 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,243 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,243 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,244 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,244 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,244 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,245 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,245 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,245 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,245 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,245 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,246 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,246 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,246 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,246 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,247 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,247 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,247 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,248 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,248 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,248 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,248 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,248 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,249 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,249 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,249 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,249 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,250 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,250 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,250 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,250 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,251 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,251 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,251 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,251 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,252 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,252 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,252 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,252 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,253 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,253 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,253 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,253 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,254 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,254 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,254 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,254 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,255 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,255 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,255 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,255 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,255 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,256 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,256 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-26 02:20:33,292 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-26 02:20:33,293 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:20:33,298 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:20:33,305 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:20:33,320 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:20:33,320 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:20:33,320 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:20:33,320 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:20:33,320 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:20:33,321 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:20:33,321 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:20:33,321 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:20:33,329 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 74 transitions [2019-11-26 02:20:33,474 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-11-26 02:20:33,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-11-26 02:20:33,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-26 02:20:33,490 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:20:33,491 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:20:33,492 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:20:33,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:20:33,497 INFO L82 PathProgramCache]: Analyzing trace with hash -545638952, now seen corresponding path program 1 times [2019-11-26 02:20:33,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:20:33,506 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876687740] [2019-11-26 02:20:33,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:20:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:20:33,807 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 02:20:33,808 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876687740] [2019-11-26 02:20:33,813 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:20:33,813 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-26 02:20:33,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737023391] [2019-11-26 02:20:33,820 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:20:33,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:20:33,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:20:33,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:20:33,836 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-11-26 02:20:33,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:20:33,983 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-11-26 02:20:33,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:20:33,986 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-26 02:20:33,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:20:34,014 INFO L225 Difference]: With dead ends: 1294 [2019-11-26 02:20:34,015 INFO L226 Difference]: Without dead ends: 600 [2019-11-26 02:20:34,016 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 02:20:34,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-11-26 02:20:34,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-11-26 02:20:34,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-11-26 02:20:34,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-11-26 02:20:34,120 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-11-26 02:20:34,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:20:34,125 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-11-26 02:20:34,125 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:20:34,125 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-11-26 02:20:34,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-26 02:20:34,129 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:20:34,129 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 02:20:34,130 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:20:34,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:20:34,130 INFO L82 PathProgramCache]: Analyzing trace with hash 819902106, now seen corresponding path program 1 times [2019-11-26 02:20:34,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:20:34,131 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353913297] [2019-11-26 02:20:34,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:20:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:20:34,288 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 02:20:34,289 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353913297] [2019-11-26 02:20:34,289 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:20:34,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 02:20:34,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498956615] [2019-11-26 02:20:34,290 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:20:34,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:20:34,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:20:34,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:20:34,291 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-11-26 02:20:34,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:20:34,349 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-11-26 02:20:34,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:20:34,350 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-11-26 02:20:34,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:20:34,355 INFO L225 Difference]: With dead ends: 600 [2019-11-26 02:20:34,355 INFO L226 Difference]: Without dead ends: 537 [2019-11-26 02:20:34,356 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 02:20:34,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-11-26 02:20:34,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-11-26 02:20:34,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-11-26 02:20:34,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-11-26 02:20:34,391 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-11-26 02:20:34,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:20:34,391 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-11-26 02:20:34,392 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:20:34,392 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-11-26 02:20:34,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-26 02:20:34,394 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:20:34,394 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 02:20:34,394 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:20:34,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:20:34,395 INFO L82 PathProgramCache]: Analyzing trace with hash 693867502, now seen corresponding path program 1 times [2019-11-26 02:20:34,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:20:34,395 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116307546] [2019-11-26 02:20:34,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:20:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:20:34,509 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 02:20:34,510 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116307546] [2019-11-26 02:20:34,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:20:34,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-26 02:20:34,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472754619] [2019-11-26 02:20:34,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:20:34,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:20:34,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:20:34,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-26 02:20:34,512 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-11-26 02:20:34,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:20:34,614 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-11-26 02:20:34,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:20:34,618 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-11-26 02:20:34,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:20:34,621 INFO L225 Difference]: With dead ends: 402 [2019-11-26 02:20:34,621 INFO L226 Difference]: Without dead ends: 348 [2019-11-26 02:20:34,621 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 02:20:34,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-11-26 02:20:34,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-11-26 02:20:34,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-11-26 02:20:34,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-11-26 02:20:34,646 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-11-26 02:20:34,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:20:34,647 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-11-26 02:20:34,647 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:20:34,647 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-11-26 02:20:34,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-26 02:20:34,650 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:20:34,650 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 02:20:34,651 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:20:34,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:20:34,651 INFO L82 PathProgramCache]: Analyzing trace with hash 999993062, now seen corresponding path program 1 times [2019-11-26 02:20:34,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:20:34,652 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526904904] [2019-11-26 02:20:34,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:20:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:20:34,800 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 02:20:34,800 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526904904] [2019-11-26 02:20:34,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:20:34,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:20:34,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770475535] [2019-11-26 02:20:34,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:20:34,801 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:20:34,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:20:34,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:20:34,802 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 7 states. [2019-11-26 02:20:34,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:20:34,932 INFO L93 Difference]: Finished difference Result 564 states and 1499 transitions. [2019-11-26 02:20:34,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:20:34,932 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-26 02:20:34,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:20:34,935 INFO L225 Difference]: With dead ends: 564 [2019-11-26 02:20:34,935 INFO L226 Difference]: Without dead ends: 321 [2019-11-26 02:20:34,936 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-26 02:20:34,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2019-11-26 02:20:34,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2019-11-26 02:20:34,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2019-11-26 02:20:34,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 845 transitions. [2019-11-26 02:20:34,950 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 845 transitions. Word has length 33 [2019-11-26 02:20:34,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:20:34,950 INFO L462 AbstractCegarLoop]: Abstraction has 321 states and 845 transitions. [2019-11-26 02:20:34,950 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:20:34,950 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 845 transitions. [2019-11-26 02:20:34,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-26 02:20:34,952 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:20:34,952 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 02:20:34,952 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:20:34,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:20:34,953 INFO L82 PathProgramCache]: Analyzing trace with hash 462260528, now seen corresponding path program 2 times [2019-11-26 02:20:34,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:20:34,953 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278987230] [2019-11-26 02:20:34,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:20:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:20:35,110 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 02:20:35,110 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278987230] [2019-11-26 02:20:35,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:20:35,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-26 02:20:35,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935181018] [2019-11-26 02:20:35,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-26 02:20:35,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:20:35,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-26 02:20:35,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:20:35,112 INFO L87 Difference]: Start difference. First operand 321 states and 845 transitions. Second operand 7 states. [2019-11-26 02:20:35,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:20:35,345 INFO L93 Difference]: Finished difference Result 438 states and 1163 transitions. [2019-11-26 02:20:35,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-26 02:20:35,346 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-11-26 02:20:35,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:20:35,346 INFO L225 Difference]: With dead ends: 438 [2019-11-26 02:20:35,346 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:20:35,347 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2019-11-26 02:20:35,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:20:35,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:20:35,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:20:35,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:20:35,347 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-11-26 02:20:35,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:20:35,348 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:20:35,348 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-26 02:20:35,348 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:20:35,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:20:35,350 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-26 02:20:35,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:20:35 BasicIcfg [2019-11-26 02:20:35,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:20:35,353 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:20:35,353 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:20:35,353 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:20:35,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:20:33" (3/4) ... [2019-11-26 02:20:35,361 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:20:35,371 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-26 02:20:35,371 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-26 02:20:35,371 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-26 02:20:35,385 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-26 02:20:35,397 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:20:35,397 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:20:35,445 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f4b610f9-65e0-4d72-898d-dff16ffa383c/bin/utaipan/witness.graphml [2019-11-26 02:20:35,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:20:35,448 INFO L168 Benchmark]: Toolchain (without parser) took 3311.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -159.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:20:35,448 INFO L168 Benchmark]: CDTParser took 0.22 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 02:20:35,449 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -148.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:20:35,449 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.85 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 02:20:35,450 INFO L168 Benchmark]: Boogie Preprocessor took 24.97 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:20:35,451 INFO L168 Benchmark]: RCFGBuilder took 366.91 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:20:35,455 INFO L168 Benchmark]: TraceAbstraction took 2173.47 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: -45.5 MB). Peak memory consumption was 215.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:20:35,456 INFO L168 Benchmark]: Witness Printer took 93.29 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 02:20:35,458 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 606.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -148.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.85 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 24.97 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 366.91 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2173.47 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: -45.5 MB). Peak memory consumption was 215.5 MB. Max. memory is 11.5 GB. * Witness Printer took 93.29 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, 89 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 229 SDtfs, 324 SDslu, 584 SDs, 0 SdLazy, 96 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 13978 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...