./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_af83f0b9-c958-4a35-ad7a-951247d5c535/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_af83f0b9-c958-4a35-ad7a-951247d5c535/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_af83f0b9-c958-4a35-ad7a-951247d5c535/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_af83f0b9-c958-4a35-ad7a-951247d5c535/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_af83f0b9-c958-4a35-ad7a-951247d5c535/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_af83f0b9-c958-4a35-ad7a-951247d5c535/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aae43c48d6bb273b2091b89bffd563cd24fb680d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:06:33,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:06:33,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:06:33,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:06:33,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:06:33,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:06:33,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:06:33,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:06:33,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:06:33,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:06:33,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:06:33,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:06:33,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:06:33,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:06:33,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:06:33,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:06:33,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:06:33,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:06:33,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:06:33,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:06:33,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:06:33,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:06:33,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:06:33,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:06:33,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:06:33,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:06:33,512 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:06:33,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:06:33,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:06:33,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:06:33,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:06:33,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:06:33,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:06:33,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:06:33,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:06:33,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:06:33,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:06:33,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:06:33,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:06:33,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:06:33,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:06:33,527 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_af83f0b9-c958-4a35-ad7a-951247d5c535/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:06:33,568 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:06:33,568 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:06:33,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:06:33,570 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:06:33,570 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:06:33,570 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:06:33,571 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:06:33,571 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:06:33,571 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:06:33,571 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:06:33,572 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:06:33,573 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:06:33,573 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:06:33,573 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:06:33,573 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:06:33,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:06:33,574 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:06:33,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:06:33,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:06:33,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:06:33,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:06:33,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:06:33,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:06:33,576 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:06:33,576 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:06:33,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:06:33,577 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:06:33,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:06:33,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:06:33,579 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:06:33,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:06:33,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:33,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:06:33,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:06:33,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:06:33,580 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:06:33,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:06:33,581 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:06:33,581 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:06:33,581 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:06:33,581 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_af83f0b9-c958-4a35-ad7a-951247d5c535/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_af83f0b9-c958-4a35-ad7a-951247d5c535/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aae43c48d6bb273b2091b89bffd563cd24fb680d [2020-11-22 13:06:33,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:06:33,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:06:33,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:06:33,940 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:06:33,941 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:06:33,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_af83f0b9-c958-4a35-ad7a-951247d5c535/bin/utaipan/../../sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i [2020-11-22 13:06:34,011 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af83f0b9-c958-4a35-ad7a-951247d5c535/bin/utaipan/data/5553ddb3d/c2a14224012947c695936323a5a16eaa/FLAG71b476873 [2020-11-22 13:06:34,547 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:06:34,548 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_af83f0b9-c958-4a35-ad7a-951247d5c535/sv-benchmarks/c/pthread-wmm/safe018_tso.opt.i [2020-11-22 13:06:34,567 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af83f0b9-c958-4a35-ad7a-951247d5c535/bin/utaipan/data/5553ddb3d/c2a14224012947c695936323a5a16eaa/FLAG71b476873 [2020-11-22 13:06:34,808 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_af83f0b9-c958-4a35-ad7a-951247d5c535/bin/utaipan/data/5553ddb3d/c2a14224012947c695936323a5a16eaa [2020-11-22 13:06:34,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:06:34,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:06:34,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:34,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:06:34,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:06:34,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:34" (1/1) ... [2020-11-22 13:06:34,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@309c0151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:34, skipping insertion in model container [2020-11-22 13:06:34,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:34" (1/1) ... [2020-11-22 13:06:34,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:06:34,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:06:35,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:35,376 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:06:35,417 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:35,495 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:06:35,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35 WrapperNode [2020-11-22 13:06:35,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:35,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:35,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:06:35,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:06:35,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... [2020-11-22 13:06:35,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... [2020-11-22 13:06:35,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:35,539 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:06:35,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:06:35,540 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:06:35,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... [2020-11-22 13:06:35,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... [2020-11-22 13:06:35,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... [2020-11-22 13:06:35,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... [2020-11-22 13:06:35,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... [2020-11-22 13:06:35,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... [2020-11-22 13:06:35,563 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... [2020-11-22 13:06:35,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:06:35,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:06:35,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:06:35,567 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:06:35,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af83f0b9-c958-4a35-ad7a-951247d5c535/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:35,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 13:06:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-22 13:06:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:06:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:06:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-22 13:06:35,639 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-22 13:06:35,639 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-22 13:06:35,639 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-22 13:06:35,640 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-22 13:06:35,640 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-22 13:06:35,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:06:35,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-22 13:06:35,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:06:35,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:06:35,642 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-22 13:06:36,109 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:06:36,109 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-22 13:06:36,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:36 BoogieIcfgContainer [2020-11-22 13:06:36,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:06:36,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:06:36,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:06:36,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:06:36,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:06:34" (1/3) ... [2020-11-22 13:06:36,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86e3d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:36, skipping insertion in model container [2020-11-22 13:06:36,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:35" (2/3) ... [2020-11-22 13:06:36,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86e3d8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:36, skipping insertion in model container [2020-11-22 13:06:36,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:36" (3/3) ... [2020-11-22 13:06:36,121 INFO L111 eAbstractionObserver]: Analyzing ICFG safe018_tso.opt.i [2020-11-22 13:06:36,132 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-22 13:06:36,132 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:06:36,137 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:06:36,138 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-22 13:06:36,165 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,166 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,166 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,166 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,167 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,167 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,168 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,168 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,168 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,169 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,169 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,169 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,170 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,170 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,170 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,173 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,173 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,173 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,173 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,178 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,179 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,179 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,179 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,182 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,182 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,182 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,182 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 13:06:36,185 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-22 13:06:36,196 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-22 13:06:36,217 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:06:36,217 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:06:36,217 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:06:36,218 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:06:36,218 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:06:36,218 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:06:36,218 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:06:36,218 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:06:36,229 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-22 13:06:36,231 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-22 13:06:36,234 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 78 transitions, 171 flow [2020-11-22 13:06:36,235 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 85 places, 78 transitions, 171 flow [2020-11-22 13:06:36,295 INFO L129 PetriNetUnfolder]: 3/75 cut-off events. [2020-11-22 13:06:36,295 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-22 13:06:36,299 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 75 events. 3/75 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-11-22 13:06:36,302 INFO L116 LiptonReduction]: Number of co-enabled transitions 1348 [2020-11-22 13:06:38,469 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-22 13:06:38,797 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-11-22 13:06:39,130 INFO L131 LiptonReduction]: Checked pairs total: 2462 [2020-11-22 13:06:39,130 INFO L133 LiptonReduction]: Total number of compositions: 71 [2020-11-22 13:06:39,135 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-22 13:06:39,175 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 274 states. [2020-11-22 13:06:39,177 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states. [2020-11-22 13:06:39,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:06:39,184 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:39,185 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:39,185 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:39,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:39,192 INFO L82 PathProgramCache]: Analyzing trace with hash 911607414, now seen corresponding path program 1 times [2020-11-22 13:06:39,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:39,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588938389] [2020-11-22 13:06:39,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:39,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:39,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:39,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588938389] [2020-11-22 13:06:39,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:39,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:06:39,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959654059] [2020-11-22 13:06:39,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:06:39,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:39,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:06:39,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:06:39,397 INFO L87 Difference]: Start difference. First operand 274 states. Second operand 2 states. [2020-11-22 13:06:39,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:39,425 INFO L93 Difference]: Finished difference Result 274 states and 786 transitions. [2020-11-22 13:06:39,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:06:39,426 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-22 13:06:39,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:39,440 INFO L225 Difference]: With dead ends: 274 [2020-11-22 13:06:39,440 INFO L226 Difference]: Without dead ends: 226 [2020-11-22 13:06:39,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:06:39,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-11-22 13:06:39,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-11-22 13:06:39,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-11-22 13:06:39,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 634 transitions. [2020-11-22 13:06:39,505 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 634 transitions. Word has length 8 [2020-11-22 13:06:39,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:39,506 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 634 transitions. [2020-11-22 13:06:39,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:06:39,506 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 634 transitions. [2020-11-22 13:06:39,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-22 13:06:39,508 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:39,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:39,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:06:39,509 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:39,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:39,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1804948320, now seen corresponding path program 1 times [2020-11-22 13:06:39,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:39,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661439639] [2020-11-22 13:06:39,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:39,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:39,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661439639] [2020-11-22 13:06:39,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:39,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:06:39,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307113617] [2020-11-22 13:06:39,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:06:39,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:39,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:06:39,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:06:39,691 INFO L87 Difference]: Start difference. First operand 226 states and 634 transitions. Second operand 4 states. [2020-11-22 13:06:39,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:39,759 INFO L93 Difference]: Finished difference Result 250 states and 668 transitions. [2020-11-22 13:06:39,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:06:39,763 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-11-22 13:06:39,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:39,766 INFO L225 Difference]: With dead ends: 250 [2020-11-22 13:06:39,766 INFO L226 Difference]: Without dead ends: 202 [2020-11-22 13:06:39,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:06:39,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-11-22 13:06:39,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-11-22 13:06:39,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-11-22 13:06:39,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 552 transitions. [2020-11-22 13:06:39,802 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 552 transitions. Word has length 9 [2020-11-22 13:06:39,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:39,803 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 552 transitions. [2020-11-22 13:06:39,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:06:39,803 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 552 transitions. [2020-11-22 13:06:39,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:06:39,806 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:39,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:39,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 13:06:39,807 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:39,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:39,807 INFO L82 PathProgramCache]: Analyzing trace with hash 834020007, now seen corresponding path program 1 times [2020-11-22 13:06:39,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:39,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991647562] [2020-11-22 13:06:39,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:39,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:39,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991647562] [2020-11-22 13:06:39,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:39,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:06:39,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785795169] [2020-11-22 13:06:39,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:06:39,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:39,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:06:39,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:06:39,999 INFO L87 Difference]: Start difference. First operand 202 states and 552 transitions. Second operand 5 states. [2020-11-22 13:06:40,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:40,096 INFO L93 Difference]: Finished difference Result 238 states and 627 transitions. [2020-11-22 13:06:40,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:06:40,099 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-22 13:06:40,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:40,100 INFO L225 Difference]: With dead ends: 238 [2020-11-22 13:06:40,100 INFO L226 Difference]: Without dead ends: 106 [2020-11-22 13:06:40,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:06:40,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-11-22 13:06:40,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-11-22 13:06:40,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-11-22 13:06:40,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 258 transitions. [2020-11-22 13:06:40,109 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 258 transitions. Word has length 10 [2020-11-22 13:06:40,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:40,109 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 258 transitions. [2020-11-22 13:06:40,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:06:40,110 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 258 transitions. [2020-11-22 13:06:40,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-22 13:06:40,111 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:40,111 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:40,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-22 13:06:40,111 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:40,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:40,112 INFO L82 PathProgramCache]: Analyzing trace with hash 739020719, now seen corresponding path program 1 times [2020-11-22 13:06:40,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:40,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721134926] [2020-11-22 13:06:40,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:40,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:40,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721134926] [2020-11-22 13:06:40,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:40,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:06:40,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858186598] [2020-11-22 13:06:40,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:06:40,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:40,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:06:40,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:06:40,181 INFO L87 Difference]: Start difference. First operand 106 states and 258 transitions. Second operand 5 states. [2020-11-22 13:06:40,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:40,263 INFO L93 Difference]: Finished difference Result 148 states and 351 transitions. [2020-11-22 13:06:40,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:06:40,264 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-22 13:06:40,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:40,265 INFO L225 Difference]: With dead ends: 148 [2020-11-22 13:06:40,265 INFO L226 Difference]: Without dead ends: 76 [2020-11-22 13:06:40,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:06:40,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-22 13:06:40,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2020-11-22 13:06:40,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-11-22 13:06:40,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 169 transitions. [2020-11-22 13:06:40,273 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 169 transitions. Word has length 12 [2020-11-22 13:06:40,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:40,274 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 169 transitions. [2020-11-22 13:06:40,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:06:40,274 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 169 transitions. [2020-11-22 13:06:40,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-22 13:06:40,276 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:40,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:40,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-22 13:06:40,277 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:40,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:40,277 INFO L82 PathProgramCache]: Analyzing trace with hash -254241509, now seen corresponding path program 1 times [2020-11-22 13:06:40,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:40,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861001412] [2020-11-22 13:06:40,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:40,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:40,391 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861001412] [2020-11-22 13:06:40,391 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:40,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:06:40,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937464587] [2020-11-22 13:06:40,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:06:40,392 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:40,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:06:40,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:06:40,393 INFO L87 Difference]: Start difference. First operand 76 states and 169 transitions. Second operand 4 states. [2020-11-22 13:06:40,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:40,460 INFO L93 Difference]: Finished difference Result 87 states and 174 transitions. [2020-11-22 13:06:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:06:40,463 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-22 13:06:40,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:40,463 INFO L225 Difference]: With dead ends: 87 [2020-11-22 13:06:40,463 INFO L226 Difference]: Without dead ends: 66 [2020-11-22 13:06:40,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:06:40,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-22 13:06:40,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-11-22 13:06:40,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-22 13:06:40,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 133 transitions. [2020-11-22 13:06:40,471 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 133 transitions. Word has length 13 [2020-11-22 13:06:40,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:40,472 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 133 transitions. [2020-11-22 13:06:40,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:06:40,472 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 133 transitions. [2020-11-22 13:06:40,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-22 13:06:40,473 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:40,473 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:40,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-22 13:06:40,473 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:40,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:40,474 INFO L82 PathProgramCache]: Analyzing trace with hash 734665460, now seen corresponding path program 1 times [2020-11-22 13:06:40,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:40,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433409854] [2020-11-22 13:06:40,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:40,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:40,576 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433409854] [2020-11-22 13:06:40,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:40,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-22 13:06:40,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731026913] [2020-11-22 13:06:40,577 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:06:40,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:40,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:06:40,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:06:40,578 INFO L87 Difference]: Start difference. First operand 66 states and 133 transitions. Second operand 5 states. [2020-11-22 13:06:40,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:40,673 INFO L93 Difference]: Finished difference Result 62 states and 108 transitions. [2020-11-22 13:06:40,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:06:40,673 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-22 13:06:40,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:40,674 INFO L225 Difference]: With dead ends: 62 [2020-11-22 13:06:40,674 INFO L226 Difference]: Without dead ends: 47 [2020-11-22 13:06:40,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:06:40,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-22 13:06:40,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-22 13:06:40,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-22 13:06:40,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 78 transitions. [2020-11-22 13:06:40,677 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 78 transitions. Word has length 14 [2020-11-22 13:06:40,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:40,678 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 78 transitions. [2020-11-22 13:06:40,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:06:40,678 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 78 transitions. [2020-11-22 13:06:40,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-22 13:06:40,678 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:40,679 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:40,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-22 13:06:40,679 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:40,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:40,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1299079363, now seen corresponding path program 1 times [2020-11-22 13:06:40,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:40,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971842520] [2020-11-22 13:06:40,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:40,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:40,787 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971842520] [2020-11-22 13:06:40,787 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:40,787 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-22 13:06:40,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272979660] [2020-11-22 13:06:40,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:06:40,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:40,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:06:40,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:06:40,789 INFO L87 Difference]: Start difference. First operand 47 states and 78 transitions. Second operand 6 states. [2020-11-22 13:06:40,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:40,888 INFO L93 Difference]: Finished difference Result 40 states and 62 transitions. [2020-11-22 13:06:40,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-22 13:06:40,889 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-11-22 13:06:40,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:40,889 INFO L225 Difference]: With dead ends: 40 [2020-11-22 13:06:40,889 INFO L226 Difference]: Without dead ends: 34 [2020-11-22 13:06:40,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:06:40,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-22 13:06:40,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-22 13:06:40,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-22 13:06:40,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 52 transitions. [2020-11-22 13:06:40,892 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 52 transitions. Word has length 15 [2020-11-22 13:06:40,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:40,893 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 52 transitions. [2020-11-22 13:06:40,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:06:40,893 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 52 transitions. [2020-11-22 13:06:40,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 13:06:40,893 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:40,893 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:40,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-22 13:06:40,894 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:40,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:40,894 INFO L82 PathProgramCache]: Analyzing trace with hash 1284707522, now seen corresponding path program 1 times [2020-11-22 13:06:40,894 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:40,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243249204] [2020-11-22 13:06:40,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:41,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:41,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243249204] [2020-11-22 13:06:41,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:41,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-22 13:06:41,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906738984] [2020-11-22 13:06:41,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 13:06:41,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:41,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 13:06:41,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-22 13:06:41,111 INFO L87 Difference]: Start difference. First operand 34 states and 52 transitions. Second operand 10 states. [2020-11-22 13:06:41,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:41,357 INFO L93 Difference]: Finished difference Result 46 states and 64 transitions. [2020-11-22 13:06:41,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-22 13:06:41,358 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-11-22 13:06:41,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:41,359 INFO L225 Difference]: With dead ends: 46 [2020-11-22 13:06:41,359 INFO L226 Difference]: Without dead ends: 28 [2020-11-22 13:06:41,359 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2020-11-22 13:06:41,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-22 13:06:41,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-22 13:06:41,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-22 13:06:41,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2020-11-22 13:06:41,361 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 17 [2020-11-22 13:06:41,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:41,361 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2020-11-22 13:06:41,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 13:06:41,361 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2020-11-22 13:06:41,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 13:06:41,361 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:41,362 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:41,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-22 13:06:41,362 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:41,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:41,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1493599964, now seen corresponding path program 2 times [2020-11-22 13:06:41,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:41,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030244380] [2020-11-22 13:06:41,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:41,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:41,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030244380] [2020-11-22 13:06:41,523 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:41,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-22 13:06:41,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444854172] [2020-11-22 13:06:41,524 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 13:06:41,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:41,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 13:06:41,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-11-22 13:06:41,525 INFO L87 Difference]: Start difference. First operand 28 states and 38 transitions. Second operand 10 states. [2020-11-22 13:06:41,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:41,666 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2020-11-22 13:06:41,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 13:06:41,667 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-11-22 13:06:41,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:41,667 INFO L225 Difference]: With dead ends: 27 [2020-11-22 13:06:41,667 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:06:41,667 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-11-22 13:06:41,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:06:41,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:06:41,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:06:41,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:06:41,668 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-22 13:06:41,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:41,669 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:06:41,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 13:06:41,669 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:06:41,669 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:06:41,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-22 13:06:41,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:06:41 BasicIcfg [2020-11-22 13:06:41,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:06:41,673 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:06:41,673 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:06:41,673 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:06:41,674 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:36" (3/4) ... [2020-11-22 13:06:41,679 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:06:41,685 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-11-22 13:06:41,685 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-11-22 13:06:41,685 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-11-22 13:06:41,692 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-22 13:06:41,693 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-22 13:06:41,693 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:06:41,693 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:06:41,761 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_af83f0b9-c958-4a35-ad7a-951247d5c535/bin/utaipan/witness.graphml [2020-11-22 13:06:41,761 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:06:41,762 INFO L168 Benchmark]: Toolchain (without parser) took 6948.57 ms. Allocated memory was 119.5 MB in the beginning and 151.0 MB in the end (delta: 31.5 MB). Free memory was 83.3 MB in the beginning and 112.4 MB in the end (delta: -29.2 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:41,763 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 119.5 MB. Free memory was 94.0 MB in the beginning and 94.0 MB in the end (delta: 27.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:41,763 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.53 ms. Allocated memory is still 119.5 MB. Free memory was 83.0 MB in the beginning and 73.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:41,764 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.97 ms. Allocated memory is still 119.5 MB. Free memory was 73.4 MB in the beginning and 71.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:41,764 INFO L168 Benchmark]: Boogie Preprocessor took 26.75 ms. Allocated memory is still 119.5 MB. Free memory was 71.3 MB in the beginning and 70.5 MB in the end (delta: 885.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:41,765 INFO L168 Benchmark]: RCFGBuilder took 545.28 ms. Allocated memory is still 119.5 MB. Free memory was 70.5 MB in the beginning and 48.3 MB in the end (delta: 22.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:41,765 INFO L168 Benchmark]: TraceAbstraction took 5559.03 ms. Allocated memory was 119.5 MB in the beginning and 151.0 MB in the end (delta: 31.5 MB). Free memory was 47.7 MB in the beginning and 115.6 MB in the end (delta: -67.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:41,766 INFO L168 Benchmark]: Witness Printer took 87.92 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 112.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:41,768 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 119.5 MB. Free memory was 94.0 MB in the beginning and 94.0 MB in the end (delta: 27.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 680.53 ms. Allocated memory is still 119.5 MB. Free memory was 83.0 MB in the beginning and 73.4 MB in the end (delta: 9.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.97 ms. Allocated memory is still 119.5 MB. Free memory was 73.4 MB in the beginning and 71.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.75 ms. Allocated memory is still 119.5 MB. Free memory was 71.3 MB in the beginning and 70.5 MB in the end (delta: 885.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 545.28 ms. Allocated memory is still 119.5 MB. Free memory was 70.5 MB in the beginning and 48.3 MB in the end (delta: 22.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5559.03 ms. Allocated memory was 119.5 MB in the beginning and 151.0 MB in the end (delta: 31.5 MB). Free memory was 47.7 MB in the beginning and 115.6 MB in the end (delta: -67.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 87.92 ms. Allocated memory is still 151.0 MB. Free memory was 115.6 MB in the beginning and 112.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 949 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 25 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 82 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.8s, 85 PlacesBefore, 31 PlacesAfterwards, 78 TransitionsBefore, 22 TransitionsAfterwards, 1348 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 71 TotalNumberOfCompositions, 2462 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.9s, HoareTripleCheckerStatistics: 164 SDtfs, 184 SDslu, 379 SDs, 0 SdLazy, 325 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=274occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 5856 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...