./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe007_pso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5473280a-b76f-4410-8d69-eb52d5f8197e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5473280a-b76f-4410-8d69-eb52d5f8197e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5473280a-b76f-4410-8d69-eb52d5f8197e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5473280a-b76f-4410-8d69-eb52d5f8197e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe007_pso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5473280a-b76f-4410-8d69-eb52d5f8197e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5473280a-b76f-4410-8d69-eb52d5f8197e/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 192490be5ad85794d5d22dff2d69c205d13f585e ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:20:12,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:20:12,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:20:12,383 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:20:12,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:20:12,385 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:20:12,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:20:12,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:20:12,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:20:12,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:20:12,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:20:12,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:20:12,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:20:12,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:20:12,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:20:12,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:20:12,414 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:20:12,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:20:12,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:20:12,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:20:12,424 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:20:12,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:20:12,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:20:12,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:20:12,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:20:12,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:20:12,435 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:20:12,436 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:20:12,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:20:12,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:20:12,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:20:12,438 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:20:12,439 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:20:12,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:20:12,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:20:12,441 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:20:12,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:20:12,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:20:12,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:20:12,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:20:12,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:20:12,444 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5473280a-b76f-4410-8d69-eb52d5f8197e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:20:12,458 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:20:12,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:20:12,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:20:12,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:20:12,460 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:20:12,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:20:12,461 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:20:12,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:20:12,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:20:12,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:20:12,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:20:12,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:20:12,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:20:12,463 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:20:12,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:20:12,463 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:20:12,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:20:12,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:20:12,464 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:20:12,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:20:12,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:20:12,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:20:12,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:20:12,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:20:12,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:20:12,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:20:12,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:20:12,466 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:20:12,471 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_5473280a-b76f-4410-8d69-eb52d5f8197e/bin/uautomizer 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 -> Automizer 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 -> 192490be5ad85794d5d22dff2d69c205d13f585e [2019-11-15 23:20:12,504 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:20:12,523 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:20:12,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:20:12,528 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:20:12,528 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:20:12,530 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5473280a-b76f-4410-8d69-eb52d5f8197e/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe007_pso.opt.i [2019-11-15 23:20:12,591 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5473280a-b76f-4410-8d69-eb52d5f8197e/bin/uautomizer/data/162f2703e/8f9b807976954596bb45dc5b087e8de5/FLAG0d7e74f08 [2019-11-15 23:20:13,111 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:20:13,112 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5473280a-b76f-4410-8d69-eb52d5f8197e/sv-benchmarks/c/pthread-wmm/safe007_pso.opt.i [2019-11-15 23:20:13,126 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5473280a-b76f-4410-8d69-eb52d5f8197e/bin/uautomizer/data/162f2703e/8f9b807976954596bb45dc5b087e8de5/FLAG0d7e74f08 [2019-11-15 23:20:13,550 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5473280a-b76f-4410-8d69-eb52d5f8197e/bin/uautomizer/data/162f2703e/8f9b807976954596bb45dc5b087e8de5 [2019-11-15 23:20:13,552 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:20:13,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:20:13,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:20:13,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:20:13,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:20:13,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:20:13" (1/1) ... [2019-11-15 23:20:13,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f044c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:20:13, skipping insertion in model container [2019-11-15 23:20:13,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:20:13" (1/1) ... [2019-11-15 23:20:13,572 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:20:13,629 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:20:14,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:20:14,042 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:20:14,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:20:14,150 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:20:14,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:20:14 WrapperNode [2019-11-15 23:20:14,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:20:14,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:20:14,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:20:14,152 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:20:14,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:20:14" (1/1) ... [2019-11-15 23:20:14,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:20:14" (1/1) ... [2019-11-15 23:20:14,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:20:14,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:20:14,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:20:14,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:20:14,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:20:14" (1/1) ... [2019-11-15 23:20:14,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:20:14" (1/1) ... [2019-11-15 23:20:14,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:20:14" (1/1) ... [2019-11-15 23:20:14,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:20:14" (1/1) ... [2019-11-15 23:20:14,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:20:14" (1/1) ... [2019-11-15 23:20:14,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:20:14" (1/1) ... [2019-11-15 23:20:14,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:20:14" (1/1) ... [2019-11-15 23:20:14,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:20:14,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:20:14,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:20:14,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:20:14,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:20:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5473280a-b76f-4410-8d69-eb52d5f8197e/bin/uautomizer/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 [2019-11-15 23:20:14,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 23:20:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-15 23:20:14,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 23:20:14,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 23:20:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-15 23:20:14,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-15 23:20:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-15 23:20:14,303 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-15 23:20:14,303 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-15 23:20:14,304 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-15 23:20:14,305 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-15 23:20:14,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:20:14,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:20:14,309 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-15 23:20:14,640 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:20:14,640 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 23:20:14,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:20:14 BoogieIcfgContainer [2019-11-15 23:20:14,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:20:14,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:20:14,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:20:14,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:20:14,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:20:13" (1/3) ... [2019-11-15 23:20:14,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44fc8d49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:20:14, skipping insertion in model container [2019-11-15 23:20:14,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:20:14" (2/3) ... [2019-11-15 23:20:14,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44fc8d49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:20:14, skipping insertion in model container [2019-11-15 23:20:14,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:20:14" (3/3) ... [2019-11-15 23:20:14,649 INFO L109 eAbstractionObserver]: Analyzing ICFG safe007_pso.opt.i [2019-11-15 23:20:14,683 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:20:14,683 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:20:14,683 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:20:14,684 WARN L315 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:20:14,684 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:20:14,684 WARN L315 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:20:14,685 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:20:14,685 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:20:14,685 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:20:14,685 WARN L315 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:20:14,685 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:20:14,686 WARN L315 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:20:14,686 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:20:14,686 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:20:14,686 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:20:14,686 WARN L315 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:20:14,687 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:20:14,687 WARN L315 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 23:20:14,711 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 23:20:14,711 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:20:14,719 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:20:14,728 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:20:14,748 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:20:14,749 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:20:14,749 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:20:14,749 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:20:14,749 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:20:14,749 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:20:14,749 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:20:14,749 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:20:14,759 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54 places, 51 transitions [2019-11-15 23:20:14,848 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-11-15 23:20:14,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-11-15 23:20:14,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-15 23:20:14,867 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:20:14,868 INFO L380 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] [2019-11-15 23:20:14,870 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:20:14,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:20:14,876 INFO L82 PathProgramCache]: Analyzing trace with hash -605360585, now seen corresponding path program 1 times [2019-11-15 23:20:14,885 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:20:14,885 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708340615] [2019-11-15 23:20:14,885 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:20:14,886 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:20:14,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:20:15,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:20:15,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:20:15,325 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708340615] [2019-11-15 23:20:15,326 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:20:15,326 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 23:20:15,327 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71448294] [2019-11-15 23:20:15,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 23:20:15,332 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:20:15,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 23:20:15,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 23:20:15,350 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-11-15 23:20:15,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:20:15,494 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-11-15 23:20:15,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 23:20:15,501 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-11-15 23:20:15,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:20:15,539 INFO L225 Difference]: With dead ends: 1295 [2019-11-15 23:20:15,541 INFO L226 Difference]: Without dead ends: 601 [2019-11-15 23:20:15,543 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:20:15,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-11-15 23:20:15,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-11-15 23:20:15,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-11-15 23:20:15,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-11-15 23:20:15,650 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-11-15 23:20:15,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:20:15,651 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-11-15 23:20:15,651 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 23:20:15,653 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-11-15 23:20:15,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-15 23:20:15,664 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:20:15,665 INFO L380 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] [2019-11-15 23:20:15,665 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:20:15,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:20:15,665 INFO L82 PathProgramCache]: Analyzing trace with hash -26294924, now seen corresponding path program 1 times [2019-11-15 23:20:15,666 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:20:15,666 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011527712] [2019-11-15 23:20:15,666 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:20:15,666 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:20:15,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:20:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:20:15,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:20:15,880 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011527712] [2019-11-15 23:20:15,880 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:20:15,880 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 23:20:15,880 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004788920] [2019-11-15 23:20:15,882 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 23:20:15,882 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:20:15,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 23:20:15,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-15 23:20:15,883 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-11-15 23:20:15,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:20:15,989 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-11-15 23:20:15,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 23:20:15,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-15 23:20:15,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:20:16,005 INFO L225 Difference]: With dead ends: 601 [2019-11-15 23:20:16,006 INFO L226 Difference]: Without dead ends: 538 [2019-11-15 23:20:16,007 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-15 23:20:16,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-11-15 23:20:16,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-11-15 23:20:16,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-15 23:20:16,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-11-15 23:20:16,039 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-11-15 23:20:16,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:20:16,039 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-11-15 23:20:16,039 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 23:20:16,039 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-11-15 23:20:16,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-15 23:20:16,041 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:20:16,041 INFO L380 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] [2019-11-15 23:20:16,042 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:20:16,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:20:16,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1208377192, now seen corresponding path program 1 times [2019-11-15 23:20:16,042 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:20:16,043 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684686827] [2019-11-15 23:20:16,043 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:20:16,043 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:20:16,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:20:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:20:16,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:20:16,166 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684686827] [2019-11-15 23:20:16,167 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:20:16,167 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-15 23:20:16,167 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963033315] [2019-11-15 23:20:16,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-15 23:20:16,168 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:20:16,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-15 23:20:16,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-15 23:20:16,168 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-11-15 23:20:16,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:20:16,347 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-11-15 23:20:16,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:20:16,348 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-15 23:20:16,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:20:16,351 INFO L225 Difference]: With dead ends: 403 [2019-11-15 23:20:16,352 INFO L226 Difference]: Without dead ends: 349 [2019-11-15 23:20:16,352 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-15 23:20:16,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-11-15 23:20:16,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-11-15 23:20:16,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-11-15 23:20:16,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-11-15 23:20:16,383 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-11-15 23:20:16,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:20:16,384 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-11-15 23:20:16,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-15 23:20:16,384 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-11-15 23:20:16,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-15 23:20:16,386 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:20:16,386 INFO L380 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] [2019-11-15 23:20:16,386 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:20:16,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:20:16,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1038420294, now seen corresponding path program 1 times [2019-11-15 23:20:16,387 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:20:16,387 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689158113] [2019-11-15 23:20:16,388 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:20:16,388 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:20:16,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:20:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:20:16,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:20:16,655 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689158113] [2019-11-15 23:20:16,655 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:20:16,656 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 23:20:16,656 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603270302] [2019-11-15 23:20:16,656 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:20:16,656 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:20:16,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:20:16,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:20:16,657 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 8 states. [2019-11-15 23:20:16,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:20:16,856 INFO L93 Difference]: Finished difference Result 556 states and 1479 transitions. [2019-11-15 23:20:16,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 23:20:16,857 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-15 23:20:16,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:20:16,862 INFO L225 Difference]: With dead ends: 556 [2019-11-15 23:20:16,862 INFO L226 Difference]: Without dead ends: 325 [2019-11-15 23:20:16,865 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-15 23:20:16,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2019-11-15 23:20:16,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2019-11-15 23:20:16,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2019-11-15 23:20:16,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 846 transitions. [2019-11-15 23:20:16,881 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 846 transitions. Word has length 34 [2019-11-15 23:20:16,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:20:16,881 INFO L462 AbstractCegarLoop]: Abstraction has 325 states and 846 transitions. [2019-11-15 23:20:16,882 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:20:16,882 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 846 transitions. [2019-11-15 23:20:16,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-15 23:20:16,884 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:20:16,885 INFO L380 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] [2019-11-15 23:20:16,885 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:20:16,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:20:16,886 INFO L82 PathProgramCache]: Analyzing trace with hash 902319266, now seen corresponding path program 2 times [2019-11-15 23:20:16,886 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:20:16,886 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982895430] [2019-11-15 23:20:16,887 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:20:16,887 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:20:16,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:20:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:20:17,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:20:17,109 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982895430] [2019-11-15 23:20:17,110 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:20:17,110 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 23:20:17,110 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460989664] [2019-11-15 23:20:17,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:20:17,111 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:20:17,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:20:17,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:20:17,112 INFO L87 Difference]: Start difference. First operand 325 states and 846 transitions. Second operand 8 states. [2019-11-15 23:20:17,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:20:17,290 INFO L93 Difference]: Finished difference Result 487 states and 1305 transitions. [2019-11-15 23:20:17,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-15 23:20:17,290 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-15 23:20:17,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:20:17,294 INFO L225 Difference]: With dead ends: 487 [2019-11-15 23:20:17,294 INFO L226 Difference]: Without dead ends: 313 [2019-11-15 23:20:17,295 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-15 23:20:17,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-11-15 23:20:17,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-11-15 23:20:17,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-11-15 23:20:17,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 816 transitions. [2019-11-15 23:20:17,310 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 816 transitions. Word has length 34 [2019-11-15 23:20:17,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:20:17,311 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 816 transitions. [2019-11-15 23:20:17,311 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:20:17,311 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 816 transitions. [2019-11-15 23:20:17,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-15 23:20:17,313 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:20:17,313 INFO L380 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] [2019-11-15 23:20:17,313 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:20:17,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:20:17,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1887467912, now seen corresponding path program 3 times [2019-11-15 23:20:17,314 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:20:17,314 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370449897] [2019-11-15 23:20:17,315 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:20:17,315 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:20:17,315 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:20:17,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 23:20:17,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 23:20:17,545 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370449897] [2019-11-15 23:20:17,546 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 23:20:17,546 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-15 23:20:17,546 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939114439] [2019-11-15 23:20:17,547 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-15 23:20:17,547 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 23:20:17,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-15 23:20:17,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-15 23:20:17,548 INFO L87 Difference]: Start difference. First operand 313 states and 816 transitions. Second operand 8 states. [2019-11-15 23:20:17,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 23:20:17,668 INFO L93 Difference]: Finished difference Result 259 states and 654 transitions. [2019-11-15 23:20:17,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 23:20:17,668 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-15 23:20:17,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 23:20:17,669 INFO L225 Difference]: With dead ends: 259 [2019-11-15 23:20:17,669 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 23:20:17,669 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-15 23:20:17,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 23:20:17,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 23:20:17,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 23:20:17,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 23:20:17,670 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-11-15 23:20:17,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 23:20:17,670 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 23:20:17,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-15 23:20:17,671 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 23:20:17,671 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 23:20:17,674 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 23:20:17,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:20:17 BasicIcfg [2019-11-15 23:20:17,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:20:17,677 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:20:17,677 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:20:17,677 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:20:17,678 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:20:14" (3/4) ... [2019-11-15 23:20:17,682 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 23:20:17,690 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-15 23:20:17,690 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-15 23:20:17,690 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-15 23:20:17,698 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-15 23:20:17,699 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 23:20:17,779 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5473280a-b76f-4410-8d69-eb52d5f8197e/bin/uautomizer/witness.graphml [2019-11-15 23:20:17,780 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:20:17,782 INFO L168 Benchmark]: Toolchain (without parser) took 4227.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -152.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:20:17,782 INFO L168 Benchmark]: CDTParser took 0.31 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. [2019-11-15 23:20:17,786 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -151.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:20:17,787 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.20 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. [2019-11-15 23:20:17,787 INFO L168 Benchmark]: Boogie Preprocessor took 30.65 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. [2019-11-15 23:20:17,788 INFO L168 Benchmark]: RCFGBuilder took 411.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:20:17,789 INFO L168 Benchmark]: TraceAbstraction took 3034.40 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: -36.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:20:17,794 INFO L168 Benchmark]: Witness Printer took 102.63 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: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:20:17,796 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 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 596.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -151.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.20 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 30.65 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 411.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3034.40 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: -36.7 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 102.63 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: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 66 locations, 1 error locations. Result: SAFE, OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 278 SDtfs, 407 SDslu, 757 SDs, 0 SdLazy, 113 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s 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, 1.1s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 20274 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...