./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe021_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_38b6cc73-7a28-4ce2-9b04-683ed59f1f77/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_38b6cc73-7a28-4ce2-9b04-683ed59f1f77/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_38b6cc73-7a28-4ce2-9b04-683ed59f1f77/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_38b6cc73-7a28-4ce2-9b04-683ed59f1f77/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe021_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_38b6cc73-7a28-4ce2-9b04-683ed59f1f77/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_38b6cc73-7a28-4ce2-9b04-683ed59f1f77/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 691ed8575a91b9ee823b4f058564c132f43bde1d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 10:49:33,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:49:33,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:49:33,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:49:33,275 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:49:33,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:49:33,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:49:33,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:49:33,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:49:33,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:49:33,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:49:33,298 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:49:33,299 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:49:33,302 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:49:33,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:49:33,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:49:33,307 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:49:33,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:49:33,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:49:33,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:49:33,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:49:33,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:49:33,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:49:33,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:49:33,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:49:33,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:49:33,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:49:33,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:49:33,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:49:33,337 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:49:33,337 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:49:33,338 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:49:33,339 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:49:33,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:49:33,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:49:33,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:49:33,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:49:33,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:49:33,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:49:33,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:49:33,346 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:49:33,347 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_38b6cc73-7a28-4ce2-9b04-683ed59f1f77/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 10:49:33,377 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:49:33,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:49:33,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:49:33,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:49:33,393 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:49:33,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:49:33,394 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 10:49:33,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:49:33,394 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 10:49:33,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:49:33,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 10:49:33,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 10:49:33,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 10:49:33,395 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 10:49:33,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:49:33,395 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:49:33,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 10:49:33,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:49:33,396 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:49:33,396 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 10:49:33,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 10:49:33,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 10:49:33,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:49:33,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 10:49:33,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 10:49:33,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:49:33,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 10:49:33,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 10:49:33,398 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_38b6cc73-7a28-4ce2-9b04-683ed59f1f77/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 -> 691ed8575a91b9ee823b4f058564c132f43bde1d [2019-11-20 10:49:33,558 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:49:33,570 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:49:33,574 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:49:33,575 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:49:33,576 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:49:33,576 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_38b6cc73-7a28-4ce2-9b04-683ed59f1f77/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe021_tso.opt.i [2019-11-20 10:49:33,638 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_38b6cc73-7a28-4ce2-9b04-683ed59f1f77/bin/uautomizer/data/5e18fedca/2f40b85c740d4a8ca06809f24b46733a/FLAG8fae1a652 [2019-11-20 10:49:34,165 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:49:34,165 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_38b6cc73-7a28-4ce2-9b04-683ed59f1f77/sv-benchmarks/c/pthread-wmm/safe021_tso.opt.i [2019-11-20 10:49:34,191 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_38b6cc73-7a28-4ce2-9b04-683ed59f1f77/bin/uautomizer/data/5e18fedca/2f40b85c740d4a8ca06809f24b46733a/FLAG8fae1a652 [2019-11-20 10:49:34,475 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_38b6cc73-7a28-4ce2-9b04-683ed59f1f77/bin/uautomizer/data/5e18fedca/2f40b85c740d4a8ca06809f24b46733a [2019-11-20 10:49:34,479 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:49:34,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:49:34,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:49:34,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:49:34,489 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:49:34,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:49:34" (1/1) ... [2019-11-20 10:49:34,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67acf4cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:34, skipping insertion in model container [2019-11-20 10:49:34,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:49:34" (1/1) ... [2019-11-20 10:49:34,506 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:49:34,567 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:49:35,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:49:35,127 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:49:35,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:49:35,280 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:49:35,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:35 WrapperNode [2019-11-20 10:49:35,281 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:49:35,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:49:35,282 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:49:35,282 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:49:35,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:35" (1/1) ... [2019-11-20 10:49:35,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:35" (1/1) ... [2019-11-20 10:49:35,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:49:35,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:49:35,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:49:35,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:49:35,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:35" (1/1) ... [2019-11-20 10:49:35,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:35" (1/1) ... [2019-11-20 10:49:35,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:35" (1/1) ... [2019-11-20 10:49:35,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:35" (1/1) ... [2019-11-20 10:49:35,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:35" (1/1) ... [2019-11-20 10:49:35,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:35" (1/1) ... [2019-11-20 10:49:35,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:35" (1/1) ... [2019-11-20 10:49:35,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:49:35,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:49:35,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:49:35,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:49:35,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_38b6cc73-7a28-4ce2-9b04-683ed59f1f77/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 [2019-11-20 10:49:35,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 10:49:35,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-20 10:49:35,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:49:35,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 10:49:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-20 10:49:35,491 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-20 10:49:35,491 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-20 10:49:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-20 10:49:35,492 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-20 10:49:35,492 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-20 10:49:35,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-20 10:49:35,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:49:35,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:49:35,496 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-20 10:49:35,928 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:49:35,928 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 10:49:35,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:49:35 BoogieIcfgContainer [2019-11-20 10:49:35,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:49:35,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 10:49:35,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 10:49:35,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 10:49:35,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:49:34" (1/3) ... [2019-11-20 10:49:35,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9eb28d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:49:35, skipping insertion in model container [2019-11-20 10:49:35,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:35" (2/3) ... [2019-11-20 10:49:35,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9eb28d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:49:35, skipping insertion in model container [2019-11-20 10:49:35,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:49:35" (3/3) ... [2019-11-20 10:49:35,939 INFO L109 eAbstractionObserver]: Analyzing ICFG safe021_tso.opt.i [2019-11-20 10:49:35,992 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,992 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,992 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,993 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,993 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,993 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,994 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,994 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,994 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,994 WARN L315 ript$VariableManager]: TermVariabe P0Thread3of3ForFork7_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,995 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,995 WARN L315 ript$VariableManager]: TermVariabe |P0Thread3of3ForFork7_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,995 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,996 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,996 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,996 WARN L315 ript$VariableManager]: TermVariabe P0Thread2of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,997 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,997 WARN L315 ript$VariableManager]: TermVariabe |P0Thread2of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,997 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,998 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,998 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,998 WARN L315 ript$VariableManager]: TermVariabe P1Thread2of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,998 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,999 WARN L315 ript$VariableManager]: TermVariabe |P1Thread2of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,999 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,999 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:35,999 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,000 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,000 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,000 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,001 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,001 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,001 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,001 WARN L315 ript$VariableManager]: TermVariabe P1Thread3of3ForFork8_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,002 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,002 WARN L315 ript$VariableManager]: TermVariabe |P1Thread3of3ForFork8_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,002 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,003 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,003 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,003 WARN L315 ript$VariableManager]: TermVariabe P2Thread3of3ForFork6_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,004 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,004 WARN L315 ript$VariableManager]: TermVariabe |P2Thread3of3ForFork6_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,004 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,004 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,005 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,005 WARN L315 ript$VariableManager]: TermVariabe P2Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,005 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,006 WARN L315 ript$VariableManager]: TermVariabe |P2Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,006 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,006 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,006 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,007 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,007 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,007 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 10:49:36,033 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 10:49:36,033 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 10:49:36,041 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 10:49:36,055 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 10:49:36,077 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 10:49:36,077 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 10:49:36,077 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 10:49:36,077 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:49:36,077 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:49:36,077 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 10:49:36,078 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:49:36,078 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 10:49:36,090 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 96 places, 75 transitions [2019-11-20 10:49:40,214 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 31744 states. [2019-11-20 10:49:40,217 INFO L276 IsEmpty]: Start isEmpty. Operand 31744 states. [2019-11-20 10:49:40,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 10:49:40,284 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:49:40,285 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:49:40,286 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:49:40,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:49:40,293 INFO L82 PathProgramCache]: Analyzing trace with hash 773905145, now seen corresponding path program 1 times [2019-11-20 10:49:40,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:49:40,302 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812169557] [2019-11-20 10:49:40,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:49:40,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:49:40,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:49:40,661 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812169557] [2019-11-20 10:49:40,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:49:40,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 10:49:40,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872644098] [2019-11-20 10:49:40,667 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-20 10:49:40,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:49:40,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-20 10:49:40,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-20 10:49:40,685 INFO L87 Difference]: Start difference. First operand 31744 states. Second operand 4 states. [2019-11-20 10:49:41,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:49:41,229 INFO L93 Difference]: Finished difference Result 33013 states and 103293 transitions. [2019-11-20 10:49:41,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 10:49:41,232 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-11-20 10:49:41,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:49:41,415 INFO L225 Difference]: With dead ends: 33013 [2019-11-20 10:49:41,415 INFO L226 Difference]: Without dead ends: 14275 [2019-11-20 10:49:41,418 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-20 10:49:41,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14275 states. [2019-11-20 10:49:42,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14275 to 14275. [2019-11-20 10:49:42,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14275 states. [2019-11-20 10:49:42,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14275 states to 14275 states and 44298 transitions. [2019-11-20 10:49:42,468 INFO L78 Accepts]: Start accepts. Automaton has 14275 states and 44298 transitions. Word has length 31 [2019-11-20 10:49:42,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:49:42,470 INFO L462 AbstractCegarLoop]: Abstraction has 14275 states and 44298 transitions. [2019-11-20 10:49:42,471 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-20 10:49:42,471 INFO L276 IsEmpty]: Start isEmpty. Operand 14275 states and 44298 transitions. [2019-11-20 10:49:42,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 10:49:42,503 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:49:42,503 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:49:42,504 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:49:42,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:49:42,514 INFO L82 PathProgramCache]: Analyzing trace with hash 503446180, now seen corresponding path program 1 times [2019-11-20 10:49:42,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:49:42,515 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403698655] [2019-11-20 10:49:42,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:49:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:49:42,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:49:42,686 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403698655] [2019-11-20 10:49:42,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:49:42,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 10:49:42,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881171230] [2019-11-20 10:49:42,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 10:49:42,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:49:42,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 10:49:42,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 10:49:42,689 INFO L87 Difference]: Start difference. First operand 14275 states and 44298 transitions. Second operand 5 states. [2019-11-20 10:49:42,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:49:42,932 INFO L93 Difference]: Finished difference Result 14275 states and 42111 transitions. [2019-11-20 10:49:42,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 10:49:42,933 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-11-20 10:49:42,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:49:42,992 INFO L225 Difference]: With dead ends: 14275 [2019-11-20 10:49:42,992 INFO L226 Difference]: Without dead ends: 12574 [2019-11-20 10:49:42,993 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-20 10:49:43,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12574 states. [2019-11-20 10:49:43,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12574 to 12574. [2019-11-20 10:49:43,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12574 states. [2019-11-20 10:49:43,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12574 states to 12574 states and 38061 transitions. [2019-11-20 10:49:43,446 INFO L78 Accepts]: Start accepts. Automaton has 12574 states and 38061 transitions. Word has length 32 [2019-11-20 10:49:43,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:49:43,447 INFO L462 AbstractCegarLoop]: Abstraction has 12574 states and 38061 transitions. [2019-11-20 10:49:43,447 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 10:49:43,447 INFO L276 IsEmpty]: Start isEmpty. Operand 12574 states and 38061 transitions. [2019-11-20 10:49:43,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-11-20 10:49:43,477 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:49:43,477 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:49:43,478 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:49:43,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:49:43,478 INFO L82 PathProgramCache]: Analyzing trace with hash 480493381, now seen corresponding path program 1 times [2019-11-20 10:49:43,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:49:43,479 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615119526] [2019-11-20 10:49:43,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:49:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:49:43,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:49:43,654 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615119526] [2019-11-20 10:49:43,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:49:43,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-20 10:49:43,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553803974] [2019-11-20 10:49:43,655 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 10:49:43,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:49:43,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 10:49:43,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-20 10:49:43,656 INFO L87 Difference]: Start difference. First operand 12574 states and 38061 transitions. Second operand 6 states. [2019-11-20 10:49:43,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:49:43,861 INFO L93 Difference]: Finished difference Result 8929 states and 24939 transitions. [2019-11-20 10:49:43,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 10:49:43,862 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-11-20 10:49:43,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:49:43,887 INFO L225 Difference]: With dead ends: 8929 [2019-11-20 10:49:43,887 INFO L226 Difference]: Without dead ends: 7471 [2019-11-20 10:49:43,887 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-20 10:49:43,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7471 states. [2019-11-20 10:49:44,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7471 to 7471. [2019-11-20 10:49:44,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7471 states. [2019-11-20 10:49:44,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7471 states to 7471 states and 21051 transitions. [2019-11-20 10:49:44,331 INFO L78 Accepts]: Start accepts. Automaton has 7471 states and 21051 transitions. Word has length 33 [2019-11-20 10:49:44,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:49:44,331 INFO L462 AbstractCegarLoop]: Abstraction has 7471 states and 21051 transitions. [2019-11-20 10:49:44,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 10:49:44,332 INFO L276 IsEmpty]: Start isEmpty. Operand 7471 states and 21051 transitions. [2019-11-20 10:49:44,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 10:49:44,348 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:49:44,348 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:49:44,349 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:49:44,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:49:44,349 INFO L82 PathProgramCache]: Analyzing trace with hash 893539378, now seen corresponding path program 1 times [2019-11-20 10:49:44,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:49:44,350 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789705994] [2019-11-20 10:49:44,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:49:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:49:44,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:49:44,572 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789705994] [2019-11-20 10:49:44,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:49:44,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 10:49:44,573 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151097882] [2019-11-20 10:49:44,574 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 10:49:44,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:49:44,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 10:49:44,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-20 10:49:44,574 INFO L87 Difference]: Start difference. First operand 7471 states and 21051 transitions. Second operand 7 states. [2019-11-20 10:49:44,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:49:44,905 INFO L93 Difference]: Finished difference Result 12412 states and 34929 transitions. [2019-11-20 10:49:44,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-20 10:49:44,906 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-11-20 10:49:44,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:49:44,926 INFO L225 Difference]: With dead ends: 12412 [2019-11-20 10:49:44,926 INFO L226 Difference]: Without dead ends: 6472 [2019-11-20 10:49:44,927 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-11-20 10:49:44,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6472 states. [2019-11-20 10:49:45,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6472 to 6472. [2019-11-20 10:49:45,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6472 states. [2019-11-20 10:49:45,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6472 states to 6472 states and 18108 transitions. [2019-11-20 10:49:45,099 INFO L78 Accepts]: Start accepts. Automaton has 6472 states and 18108 transitions. Word has length 34 [2019-11-20 10:49:45,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:49:45,100 INFO L462 AbstractCegarLoop]: Abstraction has 6472 states and 18108 transitions. [2019-11-20 10:49:45,100 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 10:49:45,100 INFO L276 IsEmpty]: Start isEmpty. Operand 6472 states and 18108 transitions. [2019-11-20 10:49:45,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-20 10:49:45,111 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 10:49:45,111 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 10:49:45,112 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 10:49:45,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:49:45,112 INFO L82 PathProgramCache]: Analyzing trace with hash -471060662, now seen corresponding path program 2 times [2019-11-20 10:49:45,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:49:45,113 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456478332] [2019-11-20 10:49:45,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:49:45,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:49:45,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 10:49:45,285 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456478332] [2019-11-20 10:49:45,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 10:49:45,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-20 10:49:45,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461121580] [2019-11-20 10:49:45,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 10:49:45,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 10:49:45,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 10:49:45,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-11-20 10:49:45,287 INFO L87 Difference]: Start difference. First operand 6472 states and 18108 transitions. Second operand 8 states. [2019-11-20 10:49:45,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 10:49:45,428 INFO L93 Difference]: Finished difference Result 5014 states and 13734 transitions. [2019-11-20 10:49:45,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 10:49:45,429 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-11-20 10:49:45,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 10:49:45,430 INFO L225 Difference]: With dead ends: 5014 [2019-11-20 10:49:45,430 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 10:49:45,430 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2019-11-20 10:49:45,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 10:49:45,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 10:49:45,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 10:49:45,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 10:49:45,431 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-11-20 10:49:45,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 10:49:45,432 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:49:45,432 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 10:49:45,432 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 10:49:45,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 10:49:45,436 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 10:49:45,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 10:49:45 BasicIcfg [2019-11-20 10:49:45,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 10:49:45,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:49:45,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:49:45,439 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:49:45,439 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:49:35" (3/4) ... [2019-11-20 10:49:45,443 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 10:49:45,451 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-20 10:49:45,451 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-20 10:49:45,451 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-20 10:49:45,462 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-20 10:49:45,463 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 10:49:45,463 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 10:49:45,529 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_38b6cc73-7a28-4ce2-9b04-683ed59f1f77/bin/uautomizer/witness.graphml [2019-11-20 10:49:45,529 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:49:45,531 INFO L168 Benchmark]: Toolchain (without parser) took 11050.35 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 679.0 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -302.7 MB). Peak memory consumption was 376.2 MB. Max. memory is 11.5 GB. [2019-11-20 10:49:45,532 INFO L168 Benchmark]: CDTParser took 0.24 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. [2019-11-20 10:49:45,533 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:49:45,533 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:49:45,534 INFO L168 Benchmark]: Boogie Preprocessor took 46.02 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. [2019-11-20 10:49:45,534 INFO L168 Benchmark]: RCFGBuilder took 526.84 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: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. [2019-11-20 10:49:45,535 INFO L168 Benchmark]: TraceAbstraction took 9507.51 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 536.9 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -170.2 MB). Peak memory consumption was 366.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:49:45,536 INFO L168 Benchmark]: Witness Printer took 90.89 ms. Allocated memory is still 1.7 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 11.5 GB. [2019-11-20 10:49:45,539 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 796.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 74.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.02 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 526.84 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: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9507.51 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 536.9 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -170.2 MB). Peak memory consumption was 366.7 MB. Max. memory is 11.5 GB. * Witness Printer took 90.89 ms. Allocated memory is still 1.7 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 90 locations, 1 error locations. Result: SAFE, OverallTime: 9.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 430 SDtfs, 787 SDslu, 1045 SDs, 0 SdLazy, 163 SolverSat, 126 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31744occurred 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: 2.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 15567 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...