./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe036_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_470d9790-c3e3-4d26-a8ce-3b5712981d68/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_470d9790-c3e3-4d26-a8ce-3b5712981d68/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_470d9790-c3e3-4d26-a8ce-3b5712981d68/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_470d9790-c3e3-4d26-a8ce-3b5712981d68/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe036_rmo.oepc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_470d9790-c3e3-4d26-a8ce-3b5712981d68/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_470d9790-c3e3-4d26-a8ce-3b5712981d68/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f38a5f46e07d2913a70d088ce681d7cd60d8af4b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:32:06,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:32:06,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:32:06,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:32:06,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:32:06,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:32:06,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:32:06,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:32:06,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:32:06,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:32:06,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:32:06,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:32:06,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:32:06,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:32:06,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:32:06,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:32:06,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:32:06,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:32:06,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:32:06,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:32:06,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:32:06,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:32:06,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:32:06,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:32:06,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:32:06,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:32:06,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:32:06,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:32:06,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:32:06,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:32:06,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:32:06,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:32:06,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:32:06,932 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:32:06,934 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:32:06,934 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:32:06,935 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:32:06,936 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:32:06,936 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:32:06,937 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:32:06,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:32:06,943 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_470d9790-c3e3-4d26-a8ce-3b5712981d68/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:32:06,990 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:32:06,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:32:06,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:32:06,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:32:06,994 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:32:06,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:32:06,994 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:32:06,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:32:06,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:32:06,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:32:06,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:32:06,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:32:06,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:32:06,997 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:32:06,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:32:06,998 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:32:06,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:32:06,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:32:06,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:32:06,999 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:32:07,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:32:07,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:32:07,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:32:07,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:32:07,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:32:07,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:32:07,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:32:07,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:32:07,002 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:32:07,003 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_470d9790-c3e3-4d26-a8ce-3b5712981d68/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_470d9790-c3e3-4d26-a8ce-3b5712981d68/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f38a5f46e07d2913a70d088ce681d7cd60d8af4b [2020-12-01 15:32:07,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:32:07,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:32:07,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:32:07,467 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:32:07,468 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:32:07,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_470d9790-c3e3-4d26-a8ce-3b5712981d68/bin/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe036_rmo.oepc.i [2020-12-01 15:32:07,585 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_470d9790-c3e3-4d26-a8ce-3b5712981d68/bin/uautomizer/data/0a07c8dbb/04d4912764f4454982afdbc766d7ee6d/FLAGa23242a51 [2020-12-01 15:32:08,375 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:32:08,376 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_470d9790-c3e3-4d26-a8ce-3b5712981d68/sv-benchmarks/c/pthread-wmm/safe036_rmo.oepc.i [2020-12-01 15:32:08,395 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_470d9790-c3e3-4d26-a8ce-3b5712981d68/bin/uautomizer/data/0a07c8dbb/04d4912764f4454982afdbc766d7ee6d/FLAGa23242a51 [2020-12-01 15:32:08,603 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_470d9790-c3e3-4d26-a8ce-3b5712981d68/bin/uautomizer/data/0a07c8dbb/04d4912764f4454982afdbc766d7ee6d [2020-12-01 15:32:08,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:32:08,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:32:08,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:32:08,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:32:08,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:32:08,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:32:08" (1/1) ... [2020-12-01 15:32:08,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24525f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:08, skipping insertion in model container [2020-12-01 15:32:08,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:32:08" (1/1) ... [2020-12-01 15:32:08,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:32:08,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:32:09,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:32:09,309 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:32:09,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:32:09,506 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:32:09,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:09 WrapperNode [2020-12-01 15:32:09,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:32:09,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:32:09,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:32:09,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:32:09,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:09" (1/1) ... [2020-12-01 15:32:09,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:09" (1/1) ... [2020-12-01 15:32:09,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:32:09,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:32:09,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:32:09,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:32:09,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:09" (1/1) ... [2020-12-01 15:32:09,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:09" (1/1) ... [2020-12-01 15:32:09,579 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:09" (1/1) ... [2020-12-01 15:32:09,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:09" (1/1) ... [2020-12-01 15:32:09,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:09" (1/1) ... [2020-12-01 15:32:09,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:09" (1/1) ... [2020-12-01 15:32:09,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:09" (1/1) ... [2020-12-01 15:32:09,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:32:09,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:32:09,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:32:09,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:32:09,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_470d9790-c3e3-4d26-a8ce-3b5712981d68/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 [2020-12-01 15:32:09,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:32:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-01 15:32:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:32:09,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:32:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-12-01 15:32:09,692 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-12-01 15:32:09,692 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-12-01 15:32:09,692 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-12-01 15:32:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:32:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-01 15:32:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:32:09,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:32:09,695 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-01 15:32:10,331 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:32:10,332 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-01 15:32:10,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:32:10 BoogieIcfgContainer [2020-12-01 15:32:10,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:32:10,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:32:10,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:32:10,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:32:10,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:32:08" (1/3) ... [2020-12-01 15:32:10,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@677eba21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:32:10, skipping insertion in model container [2020-12-01 15:32:10,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:32:09" (2/3) ... [2020-12-01 15:32:10,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@677eba21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:32:10, skipping insertion in model container [2020-12-01 15:32:10,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:32:10" (3/3) ... [2020-12-01 15:32:10,346 INFO L111 eAbstractionObserver]: Analyzing ICFG safe036_rmo.oepc.i [2020-12-01 15:32:10,364 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-01 15:32:10,364 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:32:10,368 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:32:10,370 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-01 15:32:10,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,413 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,414 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,414 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,414 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,414 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,415 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,415 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,417 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,418 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,418 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,418 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,419 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,420 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,420 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,420 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,421 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,421 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,422 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,422 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,422 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,423 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,430 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,431 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,431 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,431 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,439 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,440 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,440 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,440 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-01 15:32:10,443 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-12-01 15:32:10,457 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-01 15:32:10,499 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:32:10,500 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:32:10,500 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:32:10,501 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:32:10,501 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:32:10,501 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:32:10,501 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:32:10,501 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:32:10,519 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-01 15:32:10,522 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 140 flow [2020-12-01 15:32:10,527 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 140 flow [2020-12-01 15:32:10,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 140 flow [2020-12-01 15:32:10,605 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2020-12-01 15:32:10,605 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-12-01 15:32:10,613 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-12-01 15:32:10,619 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-12-01 15:32:13,354 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-01 15:32:13,538 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-01 15:32:14,554 WARN L197 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-01 15:32:14,684 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-12-01 15:32:14,950 WARN L197 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-12-01 15:32:15,075 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-12-01 15:32:15,112 INFO L131 LiptonReduction]: Checked pairs total: 1418 [2020-12-01 15:32:15,112 INFO L133 LiptonReduction]: Total number of compositions: 63 [2020-12-01 15:32:15,119 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-12-01 15:32:15,134 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-12-01 15:32:15,136 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-12-01 15:32:15,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 15:32:15,143 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:32:15,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-01 15:32:15,144 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:32:15,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:32:15,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1338798449, now seen corresponding path program 1 times [2020-12-01 15:32:15,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:32:15,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88603135] [2020-12-01 15:32:15,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:32:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:32:15,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:32:15,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88603135] [2020-12-01 15:32:15,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:32:15,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:32:15,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359728716] [2020-12-01 15:32:15,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:32:15,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:32:15,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:32:15,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:32:15,457 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-12-01 15:32:15,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:32:15,486 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-12-01 15:32:15,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:32:15,488 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-01 15:32:15,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:32:15,501 INFO L225 Difference]: With dead ends: 90 [2020-12-01 15:32:15,501 INFO L226 Difference]: Without dead ends: 74 [2020-12-01 15:32:15,502 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 [2020-12-01 15:32:15,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-12-01 15:32:15,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-12-01 15:32:15,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-12-01 15:32:15,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-12-01 15:32:15,570 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-12-01 15:32:15,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:32:15,574 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-12-01 15:32:15,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:32:15,574 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-12-01 15:32:15,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 15:32:15,577 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:32:15,577 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:32:15,578 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:32:15,579 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:32:15,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:32:15,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1446900907, now seen corresponding path program 1 times [2020-12-01 15:32:15,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:32:15,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920773166] [2020-12-01 15:32:15,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:32:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:32:15,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:32:15,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920773166] [2020-12-01 15:32:15,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:32:15,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:32:15,760 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068387895] [2020-12-01 15:32:15,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-01 15:32:15,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:32:15,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:32:15,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:32:15,765 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2020-12-01 15:32:15,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:32:15,826 INFO L93 Difference]: Finished difference Result 63 states and 112 transitions. [2020-12-01 15:32:15,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:32:15,827 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-01 15:32:15,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:32:15,831 INFO L225 Difference]: With dead ends: 63 [2020-12-01 15:32:15,831 INFO L226 Difference]: Without dead ends: 47 [2020-12-01 15:32:15,832 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 [2020-12-01 15:32:15,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-12-01 15:32:15,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-12-01 15:32:15,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-12-01 15:32:15,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 79 transitions. [2020-12-01 15:32:15,850 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 79 transitions. Word has length 7 [2020-12-01 15:32:15,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:32:15,850 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 79 transitions. [2020-12-01 15:32:15,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-01 15:32:15,851 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 79 transitions. [2020-12-01 15:32:15,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:32:15,852 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:32:15,853 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:32:15,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:32:15,853 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:32:15,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:32:15,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1074461755, now seen corresponding path program 1 times [2020-12-01 15:32:15,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:32:15,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007608357] [2020-12-01 15:32:15,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:32:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:32:15,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:32:15,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007608357] [2020-12-01 15:32:15,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:32:15,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:32:15,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086882759] [2020-12-01 15:32:15,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:32:15,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:32:15,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:32:15,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:32:15,983 INFO L87 Difference]: Start difference. First operand 47 states and 79 transitions. Second operand 5 states. [2020-12-01 15:32:16,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:32:16,033 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2020-12-01 15:32:16,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:32:16,034 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-01 15:32:16,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:32:16,038 INFO L225 Difference]: With dead ends: 36 [2020-12-01 15:32:16,039 INFO L226 Difference]: Without dead ends: 29 [2020-12-01 15:32:16,039 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 [2020-12-01 15:32:16,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-01 15:32:16,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-12-01 15:32:16,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-12-01 15:32:16,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2020-12-01 15:32:16,052 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 10 [2020-12-01 15:32:16,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:32:16,052 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2020-12-01 15:32:16,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:32:16,053 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-12-01 15:32:16,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:32:16,053 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:32:16,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:32:16,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 15:32:16,054 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:32:16,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:32:16,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1774648449, now seen corresponding path program 1 times [2020-12-01 15:32:16,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:32:16,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416370276] [2020-12-01 15:32:16,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:32:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:32:16,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:32:16,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416370276] [2020-12-01 15:32:16,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:32:16,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:32:16,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093159208] [2020-12-01 15:32:16,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:32:16,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:32:16,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:32:16,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:32:16,159 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 5 states. [2020-12-01 15:32:16,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:32:16,201 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions. [2020-12-01 15:32:16,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:32:16,202 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-01 15:32:16,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:32:16,202 INFO L225 Difference]: With dead ends: 37 [2020-12-01 15:32:16,203 INFO L226 Difference]: Without dead ends: 17 [2020-12-01 15:32:16,203 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 [2020-12-01 15:32:16,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-01 15:32:16,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-12-01 15:32:16,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-01 15:32:16,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2020-12-01 15:32:16,206 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 13 [2020-12-01 15:32:16,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:32:16,206 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2020-12-01 15:32:16,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:32:16,207 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-12-01 15:32:16,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:32:16,208 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:32:16,209 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:32:16,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-01 15:32:16,209 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:32:16,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:32:16,210 INFO L82 PathProgramCache]: Analyzing trace with hash 290614237, now seen corresponding path program 2 times [2020-12-01 15:32:16,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:32:16,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553791308] [2020-12-01 15:32:16,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:32:16,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:32:16,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:32:16,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553791308] [2020-12-01 15:32:16,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:32:16,312 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:32:16,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671962306] [2020-12-01 15:32:16,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:32:16,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:32:16,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:32:16,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:32:16,314 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 5 states. [2020-12-01 15:32:16,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:32:16,344 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2020-12-01 15:32:16,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:32:16,345 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-01 15:32:16,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:32:16,345 INFO L225 Difference]: With dead ends: 16 [2020-12-01 15:32:16,345 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:32:16,346 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 [2020-12-01 15:32:16,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:32:16,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:32:16,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:32:16,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:32:16,347 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-01 15:32:16,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:32:16,347 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:32:16,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:32:16,347 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:32:16,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:32:16,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-01 15:32:16,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:32:16 BasicIcfg [2020-12-01 15:32:16,351 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:32:16,352 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:32:16,352 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:32:16,352 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:32:16,353 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:32:10" (3/4) ... [2020-12-01 15:32:16,356 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:32:16,364 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-12-01 15:32:16,364 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-12-01 15:32:16,369 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-01 15:32:16,370 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:32:16,370 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:32:16,370 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:32:16,421 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_470d9790-c3e3-4d26-a8ce-3b5712981d68/bin/uautomizer/witness.graphml [2020-12-01 15:32:16,421 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:32:16,428 INFO L168 Benchmark]: Toolchain (without parser) took 7813.89 ms. Allocated memory was 77.6 MB in the beginning and 146.8 MB in the end (delta: 69.2 MB). Free memory was 46.0 MB in the beginning and 55.0 MB in the end (delta: -9.1 MB). Peak memory consumption was 59.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:32:16,434 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 77.6 MB. Free memory was 49.6 MB in the beginning and 49.6 MB in the end (delta: 31.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:32:16,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 897.10 ms. Allocated memory was 77.6 MB in the beginning and 111.1 MB in the end (delta: 33.6 MB). Free memory was 45.8 MB in the beginning and 65.7 MB in the end (delta: -19.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-01 15:32:16,436 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.35 ms. Allocated memory is still 111.1 MB. Free memory was 65.7 MB in the beginning and 63.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:32:16,437 INFO L168 Benchmark]: Boogie Preprocessor took 32.20 ms. Allocated memory is still 111.1 MB. Free memory was 63.6 MB in the beginning and 62.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:32:16,448 INFO L168 Benchmark]: RCFGBuilder took 738.06 ms. Allocated memory is still 111.1 MB. Free memory was 62.1 MB in the beginning and 86.2 MB in the end (delta: -24.1 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:32:16,449 INFO L168 Benchmark]: TraceAbstraction took 6014.57 ms. Allocated memory was 111.1 MB in the beginning and 146.8 MB in the end (delta: 35.7 MB). Free memory was 86.2 MB in the beginning and 57.1 MB in the end (delta: 29.1 MB). Peak memory consumption was 64.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:32:16,449 INFO L168 Benchmark]: Witness Printer took 69.57 ms. Allocated memory is still 146.8 MB. Free memory was 57.1 MB in the beginning and 55.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:32:16,456 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 77.6 MB. Free memory was 49.6 MB in the beginning and 49.6 MB in the end (delta: 31.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 897.10 ms. Allocated memory was 77.6 MB in the beginning and 111.1 MB in the end (delta: 33.6 MB). Free memory was 45.8 MB in the beginning and 65.7 MB in the end (delta: -19.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.35 ms. Allocated memory is still 111.1 MB. Free memory was 65.7 MB in the beginning and 63.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.20 ms. Allocated memory is still 111.1 MB. Free memory was 63.6 MB in the beginning and 62.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 738.06 ms. Allocated memory is still 111.1 MB. Free memory was 62.1 MB in the beginning and 86.2 MB in the end (delta: -24.1 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6014.57 ms. Allocated memory was 111.1 MB in the beginning and 146.8 MB in the end (delta: 35.7 MB). Free memory was 86.2 MB in the beginning and 57.1 MB in the end (delta: 29.1 MB). Peak memory consumption was 64.3 MB. Max. memory is 16.1 GB. * Witness Printer took 69.57 ms. Allocated memory is still 146.8 MB. Free memory was 57.1 MB in the beginning and 55.0 MB in the end (delta: 2.1 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 525 VarBasedMoverChecksPositive, 22 VarBasedMoverChecksNegative, 5 SemBasedMoverChecksPositive, 17 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 36 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.5s, 69 PlacesBefore, 23 PlacesAfterwards, 65 TransitionsBefore, 17 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 6 FixpointIterations, 17 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 2 ChoiceCompositions, 63 TotalNumberOfCompositions, 1418 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 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.6s, HoareTripleCheckerStatistics: 71 SDtfs, 48 SDslu, 99 SDs, 0 SdLazy, 50 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1126 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...