./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe031_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5d73df52-3d6c-4706-8495-488f0980d2af/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5d73df52-3d6c-4706-8495-488f0980d2af/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5d73df52-3d6c-4706-8495-488f0980d2af/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5d73df52-3d6c-4706-8495-488f0980d2af/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe031_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5d73df52-3d6c-4706-8495-488f0980d2af/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5d73df52-3d6c-4706-8495-488f0980d2af/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c6aa79d63d892d225c1a390dc2b1239fe052036 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:07:25,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:07:25,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:07:25,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:07:25,219 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:07:25,220 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:07:25,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:07:25,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:07:25,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:07:25,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:07:25,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:07:25,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:07:25,265 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:07:25,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:07:25,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:07:25,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:07:25,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:07:25,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:07:25,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:07:25,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:07:25,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:07:25,300 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:07:25,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:07:25,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:07:25,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:07:25,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:07:25,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:07:25,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:07:25,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:07:25,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:07:25,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:07:25,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:07:25,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:07:25,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:07:25,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:07:25,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:07:25,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:07:25,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:07:25,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:07:25,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:07:25,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:07:25,328 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5d73df52-3d6c-4706-8495-488f0980d2af/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:07:25,371 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:07:25,371 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:07:25,372 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:07:25,372 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:07:25,373 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:07:25,373 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:07:25,373 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:07:25,373 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:07:25,373 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:07:25,374 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:07:25,374 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:07:25,375 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:07:25,375 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:07:25,375 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:07:25,375 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:07:25,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:07:25,376 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:07:25,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:07:25,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:07:25,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:07:25,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:07:25,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:07:25,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:07:25,377 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:07:25,378 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:07:25,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:07:25,378 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:07:25,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:07:25,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:07:25,379 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:07:25,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:07:25,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:07:25,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:07:25,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:07:25,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:07:25,380 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:07:25,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:07:25,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:07:25,380 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:07:25,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:07:25,381 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_5d73df52-3d6c-4706-8495-488f0980d2af/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5d73df52-3d6c-4706-8495-488f0980d2af/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c6aa79d63d892d225c1a390dc2b1239fe052036 [2020-11-22 13:07:25,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:07:25,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:07:25,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:07:25,681 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:07:25,681 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:07:25,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5d73df52-3d6c-4706-8495-488f0980d2af/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe031_tso.opt.i [2020-11-22 13:07:25,749 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d73df52-3d6c-4706-8495-488f0980d2af/bin/utaipan/data/2aa04416a/36dad6c9db4a4713bbcb7f90d8c36dde/FLAGe05de02f7 [2020-11-22 13:07:26,343 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:07:26,344 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5d73df52-3d6c-4706-8495-488f0980d2af/sv-benchmarks/c/pthread-wmm/safe031_tso.opt.i [2020-11-22 13:07:26,370 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5d73df52-3d6c-4706-8495-488f0980d2af/bin/utaipan/data/2aa04416a/36dad6c9db4a4713bbcb7f90d8c36dde/FLAGe05de02f7 [2020-11-22 13:07:26,627 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5d73df52-3d6c-4706-8495-488f0980d2af/bin/utaipan/data/2aa04416a/36dad6c9db4a4713bbcb7f90d8c36dde [2020-11-22 13:07:26,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:07:26,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:07:26,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:26,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:07:26,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:07:26,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:26" (1/1) ... [2020-11-22 13:07:26,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73667fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:26, skipping insertion in model container [2020-11-22 13:07:26,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:26" (1/1) ... [2020-11-22 13:07:26,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:07:26,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:07:27,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:27,105 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:07:27,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:27,278 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:07:27,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:27 WrapperNode [2020-11-22 13:07:27,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:27,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:07:27,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:07:27,282 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:07:27,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:27" (1/1) ... [2020-11-22 13:07:27,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:27" (1/1) ... [2020-11-22 13:07:27,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:07:27,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:07:27,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:07:27,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:07:27,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:27" (1/1) ... [2020-11-22 13:07:27,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:27" (1/1) ... [2020-11-22 13:07:27,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:27" (1/1) ... [2020-11-22 13:07:27,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:27" (1/1) ... [2020-11-22 13:07:27,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:27" (1/1) ... [2020-11-22 13:07:27,394 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:27" (1/1) ... [2020-11-22 13:07:27,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:27" (1/1) ... [2020-11-22 13:07:27,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:07:27,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:07:27,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:07:27,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:07:27,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5d73df52-3d6c-4706-8495-488f0980d2af/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 [2020-11-22 13:07:27,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 13:07:27,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-22 13:07:27,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:07:27,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:07:27,487 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-22 13:07:27,487 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-22 13:07:27,487 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-22 13:07:27,487 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-22 13:07:27,488 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-22 13:07:27,488 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-22 13:07:27,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:07:27,488 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-22 13:07:27,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:07:27,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:07:27,490 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-22 13:07:27,904 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:07:27,904 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-22 13:07:27,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:27 BoogieIcfgContainer [2020-11-22 13:07:27,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:07:27,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:07:27,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:07:27,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:07:27,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:07:26" (1/3) ... [2020-11-22 13:07:27,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba20217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:07:27, skipping insertion in model container [2020-11-22 13:07:27,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:27" (2/3) ... [2020-11-22 13:07:27,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba20217 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:07:27, skipping insertion in model container [2020-11-22 13:07:27,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:27" (3/3) ... [2020-11-22 13:07:27,914 INFO L111 eAbstractionObserver]: Analyzing ICFG safe031_tso.opt.i [2020-11-22 13:07:27,923 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-22 13:07:27,924 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:07:27,928 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:07:27,928 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-22 13:07:27,950 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,951 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,951 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,951 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,951 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,952 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,952 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,952 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,952 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,953 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,953 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,953 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,954 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,954 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,954 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,954 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,954 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,954 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,956 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,957 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,957 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,957 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,961 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,961 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,961 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,961 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,971 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,972 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:07:27,975 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-22 13:07:27,984 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-22 13:07:28,003 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:07:28,004 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:07:28,004 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:07:28,004 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:07:28,004 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:07:28,004 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:07:28,004 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:07:28,004 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:07:28,015 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-22 13:07:28,016 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-22 13:07:28,019 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-22 13:07:28,020 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-11-22 13:07:28,062 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-11-22 13:07:28,062 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-22 13:07:28,065 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-22 13:07:28,069 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-22 13:07:30,473 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-22 13:07:30,580 INFO L131 LiptonReduction]: Checked pairs total: 2814 [2020-11-22 13:07:30,580 INFO L133 LiptonReduction]: Total number of compositions: 71 [2020-11-22 13:07:30,585 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-11-22 13:07:30,612 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-11-22 13:07:30,614 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-11-22 13:07:30,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:07:30,620 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:30,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:30,621 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:30,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:30,626 INFO L82 PathProgramCache]: Analyzing trace with hash 515529937, now seen corresponding path program 1 times [2020-11-22 13:07:30,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:30,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736852745] [2020-11-22 13:07:30,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:30,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:30,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736852745] [2020-11-22 13:07:30,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:30,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:07:30,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168185892] [2020-11-22 13:07:30,824 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:07:30,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:30,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:07:30,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:07:30,842 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-11-22 13:07:30,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:30,889 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-11-22 13:07:30,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:07:30,891 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-22 13:07:30,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:30,915 INFO L225 Difference]: With dead ends: 362 [2020-11-22 13:07:30,915 INFO L226 Difference]: Without dead ends: 298 [2020-11-22 13:07:30,918 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:07:30,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-11-22 13:07:31,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-11-22 13:07:31,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-11-22 13:07:31,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-11-22 13:07:31,007 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-11-22 13:07:31,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:31,010 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-11-22 13:07:31,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:07:31,011 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-11-22 13:07:31,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-22 13:07:31,012 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:31,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:31,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:07:31,012 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:31,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:31,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1198450655, now seen corresponding path program 1 times [2020-11-22 13:07:31,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:31,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983583256] [2020-11-22 13:07:31,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:31,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:31,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983583256] [2020-11-22 13:07:31,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:31,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:07:31,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780202809] [2020-11-22 13:07:31,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:07:31,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:31,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:07:31,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:31,171 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-11-22 13:07:31,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:31,231 INFO L93 Difference]: Finished difference Result 346 states and 956 transitions. [2020-11-22 13:07:31,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:07:31,232 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-22 13:07:31,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:31,235 INFO L225 Difference]: With dead ends: 346 [2020-11-22 13:07:31,235 INFO L226 Difference]: Without dead ends: 282 [2020-11-22 13:07:31,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:07:31,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-11-22 13:07:31,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-11-22 13:07:31,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-11-22 13:07:31,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 804 transitions. [2020-11-22 13:07:31,267 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 804 transitions. Word has length 9 [2020-11-22 13:07:31,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:31,268 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 804 transitions. [2020-11-22 13:07:31,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:07:31,268 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 804 transitions. [2020-11-22 13:07:31,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:07:31,271 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:31,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:31,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 13:07:31,271 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:31,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:31,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1977877749, now seen corresponding path program 1 times [2020-11-22 13:07:31,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:31,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267742281] [2020-11-22 13:07:31,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:31,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:31,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267742281] [2020-11-22 13:07:31,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:31,388 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:07:31,388 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040769257] [2020-11-22 13:07:31,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:07:31,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:31,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:07:31,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:31,390 INFO L87 Difference]: Start difference. First operand 282 states and 804 transitions. Second operand 4 states. [2020-11-22 13:07:31,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:31,432 INFO L93 Difference]: Finished difference Result 318 states and 870 transitions. [2020-11-22 13:07:31,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:07:31,435 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-22 13:07:31,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:31,437 INFO L225 Difference]: With dead ends: 318 [2020-11-22 13:07:31,437 INFO L226 Difference]: Without dead ends: 270 [2020-11-22 13:07:31,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:07:31,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-11-22 13:07:31,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2020-11-22 13:07:31,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-11-22 13:07:31,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 760 transitions. [2020-11-22 13:07:31,460 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 760 transitions. Word has length 10 [2020-11-22 13:07:31,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:31,460 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 760 transitions. [2020-11-22 13:07:31,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:07:31,461 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 760 transitions. [2020-11-22 13:07:31,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-22 13:07:31,467 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:31,467 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:31,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-22 13:07:31,467 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:31,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:31,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1186186363, now seen corresponding path program 1 times [2020-11-22 13:07:31,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:31,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812637605] [2020-11-22 13:07:31,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:31,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:31,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:31,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812637605] [2020-11-22 13:07:31,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:31,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:07:31,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224751405] [2020-11-22 13:07:31,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:07:31,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:31,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:07:31,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:31,568 INFO L87 Difference]: Start difference. First operand 270 states and 760 transitions. Second operand 4 states. [2020-11-22 13:07:31,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:31,605 INFO L93 Difference]: Finished difference Result 273 states and 687 transitions. [2020-11-22 13:07:31,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:07:31,608 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-22 13:07:31,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:31,610 INFO L225 Difference]: With dead ends: 273 [2020-11-22 13:07:31,610 INFO L226 Difference]: Without dead ends: 209 [2020-11-22 13:07:31,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:07:31,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-11-22 13:07:31,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-11-22 13:07:31,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-11-22 13:07:31,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 516 transitions. [2020-11-22 13:07:31,619 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 516 transitions. Word has length 11 [2020-11-22 13:07:31,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:31,620 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 516 transitions. [2020-11-22 13:07:31,620 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:07:31,620 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 516 transitions. [2020-11-22 13:07:31,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-22 13:07:31,621 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:31,621 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:31,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-22 13:07:31,626 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:31,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:31,627 INFO L82 PathProgramCache]: Analyzing trace with hash -497822471, now seen corresponding path program 1 times [2020-11-22 13:07:31,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:31,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804157119] [2020-11-22 13:07:31,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:31,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:31,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:31,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804157119] [2020-11-22 13:07:31,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:31,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:07:31,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47533858] [2020-11-22 13:07:31,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:07:31,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:31,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:07:31,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:31,706 INFO L87 Difference]: Start difference. First operand 209 states and 516 transitions. Second operand 4 states. [2020-11-22 13:07:31,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:31,736 INFO L93 Difference]: Finished difference Result 303 states and 706 transitions. [2020-11-22 13:07:31,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:07:31,738 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-22 13:07:31,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:31,740 INFO L225 Difference]: With dead ends: 303 [2020-11-22 13:07:31,740 INFO L226 Difference]: Without dead ends: 223 [2020-11-22 13:07:31,740 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:07:31,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2020-11-22 13:07:31,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 199. [2020-11-22 13:07:31,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-11-22 13:07:31,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 470 transitions. [2020-11-22 13:07:31,749 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 470 transitions. Word has length 12 [2020-11-22 13:07:31,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:31,750 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 470 transitions. [2020-11-22 13:07:31,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:07:31,750 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 470 transitions. [2020-11-22 13:07:31,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-22 13:07:31,750 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:31,751 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:31,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-22 13:07:31,751 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:31,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:31,751 INFO L82 PathProgramCache]: Analyzing trace with hash -319232189, now seen corresponding path program 1 times [2020-11-22 13:07:31,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:31,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301191801] [2020-11-22 13:07:31,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:31,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:31,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301191801] [2020-11-22 13:07:31,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:31,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-22 13:07:31,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925372678] [2020-11-22 13:07:31,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:07:31,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:31,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:07:31,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:07:31,847 INFO L87 Difference]: Start difference. First operand 199 states and 470 transitions. Second operand 5 states. [2020-11-22 13:07:31,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:31,912 INFO L93 Difference]: Finished difference Result 171 states and 364 transitions. [2020-11-22 13:07:31,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:07:31,914 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-11-22 13:07:31,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:31,916 INFO L225 Difference]: With dead ends: 171 [2020-11-22 13:07:31,916 INFO L226 Difference]: Without dead ends: 134 [2020-11-22 13:07:31,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:07:31,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-11-22 13:07:31,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-11-22 13:07:31,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-11-22 13:07:31,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 280 transitions. [2020-11-22 13:07:31,921 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 280 transitions. Word has length 13 [2020-11-22 13:07:31,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:31,921 INFO L481 AbstractCegarLoop]: Abstraction has 134 states and 280 transitions. [2020-11-22 13:07:31,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:07:31,922 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 280 transitions. [2020-11-22 13:07:31,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-22 13:07:31,922 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:31,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:31,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-22 13:07:31,923 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:31,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:31,923 INFO L82 PathProgramCache]: Analyzing trace with hash 447753789, now seen corresponding path program 1 times [2020-11-22 13:07:31,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:31,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994994929] [2020-11-22 13:07:31,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:31,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:31,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994994929] [2020-11-22 13:07:31,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:31,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:07:31,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841861214] [2020-11-22 13:07:31,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:07:31,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:31,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:07:31,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:31,991 INFO L87 Difference]: Start difference. First operand 134 states and 280 transitions. Second operand 4 states. [2020-11-22 13:07:32,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:32,023 INFO L93 Difference]: Finished difference Result 177 states and 347 transitions. [2020-11-22 13:07:32,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:07:32,023 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-11-22 13:07:32,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:32,024 INFO L225 Difference]: With dead ends: 177 [2020-11-22 13:07:32,024 INFO L226 Difference]: Without dead ends: 130 [2020-11-22 13:07:32,025 INFO L677 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 [2020-11-22 13:07:32,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-11-22 13:07:32,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2020-11-22 13:07:32,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-11-22 13:07:32,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 248 transitions. [2020-11-22 13:07:32,029 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 248 transitions. Word has length 15 [2020-11-22 13:07:32,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:32,030 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 248 transitions. [2020-11-22 13:07:32,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:07:32,030 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 248 transitions. [2020-11-22 13:07:32,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-22 13:07:32,030 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:32,031 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:32,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-22 13:07:32,031 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:32,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:32,031 INFO L82 PathProgramCache]: Analyzing trace with hash 144030791, now seen corresponding path program 1 times [2020-11-22 13:07:32,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:32,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883041329] [2020-11-22 13:07:32,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:32,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:32,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883041329] [2020-11-22 13:07:32,116 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:32,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-22 13:07:32,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441107270] [2020-11-22 13:07:32,116 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:07:32,117 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:32,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:07:32,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:07:32,117 INFO L87 Difference]: Start difference. First operand 126 states and 248 transitions. Second operand 6 states. [2020-11-22 13:07:32,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:32,171 INFO L93 Difference]: Finished difference Result 113 states and 220 transitions. [2020-11-22 13:07:32,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-22 13:07:32,171 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-22 13:07:32,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:32,172 INFO L225 Difference]: With dead ends: 113 [2020-11-22 13:07:32,172 INFO L226 Difference]: Without dead ends: 37 [2020-11-22 13:07:32,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:07:32,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-22 13:07:32,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-22 13:07:32,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-22 13:07:32,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 57 transitions. [2020-11-22 13:07:32,186 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 57 transitions. Word has length 15 [2020-11-22 13:07:32,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:32,186 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 57 transitions. [2020-11-22 13:07:32,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:07:32,186 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2020-11-22 13:07:32,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 13:07:32,187 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:32,187 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:32,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-22 13:07:32,187 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:07:32,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:32,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1289085181, now seen corresponding path program 1 times [2020-11-22 13:07:32,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:32,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142651393] [2020-11-22 13:07:32,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:32,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:32,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142651393] [2020-11-22 13:07:32,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:32,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-22 13:07:32,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364178326] [2020-11-22 13:07:32,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:07:32,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:32,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:07:32,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:07:32,246 INFO L87 Difference]: Start difference. First operand 37 states and 57 transitions. Second operand 5 states. [2020-11-22 13:07:32,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:32,272 INFO L93 Difference]: Finished difference Result 36 states and 56 transitions. [2020-11-22 13:07:32,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:07:32,272 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-11-22 13:07:32,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:32,273 INFO L225 Difference]: With dead ends: 36 [2020-11-22 13:07:32,273 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:07:32,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:07:32,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:07:32,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:07:32,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:07:32,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:07:32,274 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-11-22 13:07:32,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:32,274 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:07:32,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:07:32,274 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:07:32,274 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:07:32,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-22 13:07:32,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:07:32 BasicIcfg [2020-11-22 13:07:32,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:07:32,278 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:07:32,278 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:07:32,278 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:07:32,278 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:27" (3/4) ... [2020-11-22 13:07:32,281 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:07:32,287 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-11-22 13:07:32,287 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-11-22 13:07:32,287 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-11-22 13:07:32,294 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-22 13:07:32,294 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-22 13:07:32,294 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:07:32,295 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:07:32,349 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5d73df52-3d6c-4706-8495-488f0980d2af/bin/utaipan/witness.graphml [2020-11-22 13:07:32,349 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:07:32,351 INFO L168 Benchmark]: Toolchain (without parser) took 5720.11 ms. Allocated memory was 136.3 MB in the beginning and 163.6 MB in the end (delta: 27.3 MB). Free memory was 107.3 MB in the beginning and 121.9 MB in the end (delta: -14.6 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:32,351 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 94.4 MB. Free memory is still 51.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:07:32,352 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.61 ms. Allocated memory is still 136.3 MB. Free memory was 107.0 MB in the beginning and 93.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:32,352 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.82 ms. Allocated memory is still 136.3 MB. Free memory was 93.3 MB in the beginning and 91.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:32,352 INFO L168 Benchmark]: Boogie Preprocessor took 68.06 ms. Allocated memory is still 136.3 MB. Free memory was 91.2 MB in the beginning and 90.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:07:32,353 INFO L168 Benchmark]: RCFGBuilder took 491.92 ms. Allocated memory is still 136.3 MB. Free memory was 90.0 MB in the beginning and 111.9 MB in the end (delta: -21.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:32,353 INFO L168 Benchmark]: TraceAbstraction took 4369.92 ms. Allocated memory was 136.3 MB in the beginning and 163.6 MB in the end (delta: 27.3 MB). Free memory was 111.1 MB in the beginning and 125.0 MB in the end (delta: -14.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:32,354 INFO L168 Benchmark]: Witness Printer took 71.91 ms. Allocated memory is still 163.6 MB. Free memory was 125.0 MB in the beginning and 121.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:32,356 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 94.4 MB. Free memory is still 51.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 648.61 ms. Allocated memory is still 136.3 MB. Free memory was 107.0 MB in the beginning and 93.3 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.82 ms. Allocated memory is still 136.3 MB. Free memory was 93.3 MB in the beginning and 91.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.06 ms. Allocated memory is still 136.3 MB. Free memory was 91.2 MB in the beginning and 90.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 491.92 ms. Allocated memory is still 136.3 MB. Free memory was 90.0 MB in the beginning and 111.9 MB in the end (delta: -21.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4369.92 ms. Allocated memory was 136.3 MB in the beginning and 163.6 MB in the end (delta: 27.3 MB). Free memory was 111.1 MB in the beginning and 125.0 MB in the end (delta: -14.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * Witness Printer took 71.91 ms. Allocated memory is still 163.6 MB. Free memory was 125.0 MB in the beginning and 121.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 947 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 72 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.5s, 85 PlacesBefore, 32 PlacesAfterwards, 78 TransitionsBefore, 23 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 42 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 71 TotalNumberOfCompositions, 2814 MoverChecksTotal - PositiveResult [Line: 17]: 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 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 211 SDtfs, 164 SDslu, 310 SDs, 0 SdLazy, 117 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 9 MinimizatonAttempts, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 3478 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...