./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack-2.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_beba93bf-f031-43ca-bd60-34bb63f9668e/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_beba93bf-f031-43ca-bd60-34bb63f9668e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_beba93bf-f031-43ca-bd60-34bb63f9668e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_beba93bf-f031-43ca-bd60-34bb63f9668e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stack-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_beba93bf-f031-43ca-bd60-34bb63f9668e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_beba93bf-f031-43ca-bd60-34bb63f9668e/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 222125c717d992fdf8da41f61f0a35e98727dda6 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:47:43,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:47:43,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:47:43,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:47:43,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:47:43,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:47:43,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:47:43,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:47:43,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:47:43,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:47:43,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:47:43,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:47:43,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:47:43,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:47:43,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:47:43,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:47:43,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:47:43,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:47:43,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:47:43,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:47:43,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:47:43,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:47:43,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:47:43,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:47:43,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:47:43,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:47:43,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:47:43,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:47:43,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:47:43,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:47:43,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:47:43,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:47:43,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:47:43,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:47:43,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:47:43,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:47:43,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:47:43,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:47:43,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:47:43,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:47:43,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:47:43,318 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_beba93bf-f031-43ca-bd60-34bb63f9668e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 01:47:43,361 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:47:43,365 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:47:43,366 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:47:43,367 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:47:43,367 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:47:43,367 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:47:43,367 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 01:47:43,368 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:47:43,368 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:47:43,368 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 01:47:43,369 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 01:47:43,369 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:47:43,370 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 01:47:43,370 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 01:47:43,370 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 01:47:43,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:47:43,371 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:47:43,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:47:43,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:47:43,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:47:43,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:47:43,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:47:43,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:47:43,373 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:47:43,373 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:47:43,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:47:43,373 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:47:43,374 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:47:43,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:47:43,375 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:47:43,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:47:43,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:47:43,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:47:43,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:47:43,377 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:47:43,377 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 01:47:43,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:47:43,377 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:47:43,378 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:47:43,378 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:47:43,378 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_beba93bf-f031-43ca-bd60-34bb63f9668e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_beba93bf-f031-43ca-bd60-34bb63f9668e/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 222125c717d992fdf8da41f61f0a35e98727dda6 [2020-11-30 01:47:43,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:47:43,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:47:43,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:47:43,693 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:47:43,694 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:47:43,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_beba93bf-f031-43ca-bd60-34bb63f9668e/bin/utaipan/../../sv-benchmarks/c/pthread/stack-2.i [2020-11-30 01:47:43,765 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_beba93bf-f031-43ca-bd60-34bb63f9668e/bin/utaipan/data/06e6332f6/46405e1c92884402ab2283cb4d7fd574/FLAG52d264ea7 [2020-11-30 01:47:44,382 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:47:44,388 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_beba93bf-f031-43ca-bd60-34bb63f9668e/sv-benchmarks/c/pthread/stack-2.i [2020-11-30 01:47:44,415 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_beba93bf-f031-43ca-bd60-34bb63f9668e/bin/utaipan/data/06e6332f6/46405e1c92884402ab2283cb4d7fd574/FLAG52d264ea7 [2020-11-30 01:47:44,648 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_beba93bf-f031-43ca-bd60-34bb63f9668e/bin/utaipan/data/06e6332f6/46405e1c92884402ab2283cb4d7fd574 [2020-11-30 01:47:44,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:47:44,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:47:44,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:47:44,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:47:44,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:47:44,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:47:44" (1/1) ... [2020-11-30 01:47:44,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55bb7c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:47:44, skipping insertion in model container [2020-11-30 01:47:44,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:47:44" (1/1) ... [2020-11-30 01:47:44,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:47:44,748 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:47:45,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:47:45,342 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:47:45,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:47:45,577 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:47:45,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:47:45 WrapperNode [2020-11-30 01:47:45,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:47:45,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:47:45,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:47:45,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:47:45,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:47:45" (1/1) ... [2020-11-30 01:47:45,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:47:45" (1/1) ... [2020-11-30 01:47:45,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:47:45,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:47:45,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:47:45,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:47:45,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:47:45" (1/1) ... [2020-11-30 01:47:45,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:47:45" (1/1) ... [2020-11-30 01:47:45,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:47:45" (1/1) ... [2020-11-30 01:47:45,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:47:45" (1/1) ... [2020-11-30 01:47:45,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:47:45" (1/1) ... [2020-11-30 01:47:45,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:47:45" (1/1) ... [2020-11-30 01:47:45,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:47:45" (1/1) ... [2020-11-30 01:47:45,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:47:45,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:47:45,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:47:45,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:47:45,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:47:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beba93bf-f031-43ca-bd60-34bb63f9668e/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 [2020-11-30 01:47:45,756 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-11-30 01:47:45,756 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-11-30 01:47:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-11-30 01:47:45,757 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-11-30 01:47:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:47:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:47:45,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:47:45,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:47:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-30 01:47:45,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:47:45,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:47:45,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:47:45,761 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-30 01:47:46,478 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:47:46,479 INFO L298 CfgBuilder]: Removed 30 assume(true) statements. [2020-11-30 01:47:46,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:47:46 BoogieIcfgContainer [2020-11-30 01:47:46,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:47:46,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:47:46,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:47:46,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:47:46,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:47:44" (1/3) ... [2020-11-30 01:47:46,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a646175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:47:46, skipping insertion in model container [2020-11-30 01:47:46,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:47:45" (2/3) ... [2020-11-30 01:47:46,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a646175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:47:46, skipping insertion in model container [2020-11-30 01:47:46,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:47:46" (3/3) ... [2020-11-30 01:47:46,489 INFO L111 eAbstractionObserver]: Analyzing ICFG stack-2.i [2020-11-30 01:47:46,500 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-30 01:47:46,500 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:47:46,505 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-30 01:47:46,505 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-30 01:47:46,540 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,556 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,556 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,557 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,557 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,557 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,557 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,558 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,558 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,558 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,559 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,559 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,559 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,559 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,560 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,560 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,560 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,560 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,561 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,561 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,561 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,561 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,562 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,562 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,562 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,562 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,563 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,563 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,563 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,563 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,564 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,564 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,564 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,565 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,565 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,565 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,565 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,566 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,566 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,566 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,566 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,567 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,567 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,567 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,567 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,568 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,568 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,568 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,568 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,569 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,569 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,569 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,569 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,570 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,570 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,570 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,570 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,571 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,571 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,571 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,571 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,572 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,572 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,572 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,573 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,573 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,573 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,574 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,574 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,575 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,575 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,576 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,577 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,592 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,592 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,592 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,593 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,593 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,593 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,593 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,594 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,594 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,594 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,594 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,595 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,595 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,595 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,595 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,596 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,596 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,596 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,596 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,596 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,597 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,597 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,597 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,597 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,597 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,598 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,598 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,598 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,598 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,598 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,599 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,599 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,599 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,599 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,600 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,600 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,600 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,600 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,600 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,601 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,601 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,601 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,601 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,602 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,602 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,602 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,602 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,602 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,603 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,603 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,603 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,603 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,604 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,604 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,604 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,604 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,604 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,605 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,605 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,605 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,605 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,606 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,606 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,606 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,606 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,606 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,607 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,607 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,609 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,610 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,610 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,611 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,611 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,611 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,611 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,612 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,612 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,621 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,622 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,622 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,622 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,622 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,622 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,623 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,623 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,623 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,623 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,623 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,624 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,635 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,635 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,636 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,636 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,636 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,636 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,636 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,636 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,637 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,637 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,637 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,637 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,637 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,637 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,638 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,638 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,638 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,638 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,638 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,638 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,639 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,639 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,639 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,639 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,643 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:47:46,657 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-11-30 01:47:46,669 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-30 01:47:46,701 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:47:46,703 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:47:46,703 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:47:46,704 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:47:46,704 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:47:46,704 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:47:46,704 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:47:46,704 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:47:46,727 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-30 01:47:46,729 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 163 transitions, 348 flow [2020-11-30 01:47:46,733 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 163 transitions, 348 flow [2020-11-30 01:47:46,735 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 156 places, 163 transitions, 348 flow [2020-11-30 01:47:46,810 INFO L129 PetriNetUnfolder]: 13/163 cut-off events. [2020-11-30 01:47:46,811 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-11-30 01:47:46,822 INFO L80 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 163 events. 13/163 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 445 event pairs, 0 based on Foata normal form. 0/149 useless extension candidates. Maximal degree in co-relation 123. Up to 3 conditions per place. [2020-11-30 01:47:46,831 INFO L116 LiptonReduction]: Number of co-enabled transitions 7732 [2020-11-30 01:47:48,039 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-11-30 01:47:50,230 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-30 01:47:50,339 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-11-30 01:47:51,020 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-11-30 01:47:51,238 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-11-30 01:47:52,580 WARN L193 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 146 [2020-11-30 01:47:52,968 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2020-11-30 01:47:53,101 INFO L131 LiptonReduction]: Checked pairs total: 13131 [2020-11-30 01:47:53,101 INFO L133 LiptonReduction]: Total number of compositions: 157 [2020-11-30 01:47:53,107 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 41 transitions, 104 flow [2020-11-30 01:47:53,144 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 335 states. [2020-11-30 01:47:53,146 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-11-30 01:47:53,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 01:47:53,152 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:47:53,153 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:47:53,154 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:47:53,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:47:53,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1417848858, now seen corresponding path program 1 times [2020-11-30 01:47:53,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:47:53,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607656412] [2020-11-30 01:47:53,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:47:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:47:53,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:47:53,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607656412] [2020-11-30 01:47:53,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:47:53,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:47:53,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125909040] [2020-11-30 01:47:53,441 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:47:53,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:47:53,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:47:53,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:47:53,457 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 3 states. [2020-11-30 01:47:53,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:47:53,550 INFO L93 Difference]: Finished difference Result 602 states and 1541 transitions. [2020-11-30 01:47:53,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:47:53,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-30 01:47:53,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:47:53,579 INFO L225 Difference]: With dead ends: 602 [2020-11-30 01:47:53,579 INFO L226 Difference]: Without dead ends: 580 [2020-11-30 01:47:53,580 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:47:53,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-11-30 01:47:53,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 427. [2020-11-30 01:47:53,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-11-30 01:47:53,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 1148 transitions. [2020-11-30 01:47:53,688 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 1148 transitions. Word has length 6 [2020-11-30 01:47:53,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:47:53,688 INFO L481 AbstractCegarLoop]: Abstraction has 427 states and 1148 transitions. [2020-11-30 01:47:53,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:47:53,689 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 1148 transitions. [2020-11-30 01:47:53,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:47:53,690 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:47:53,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:47:53,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:47:53,690 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:47:53,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:47:53,693 INFO L82 PathProgramCache]: Analyzing trace with hash 2040891315, now seen corresponding path program 1 times [2020-11-30 01:47:53,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:47:53,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541431608] [2020-11-30 01:47:53,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:47:53,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:47:53,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:47:53,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541431608] [2020-11-30 01:47:53,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:47:53,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:47:53,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855488858] [2020-11-30 01:47:53,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:47:53,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:47:53,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:47:53,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:47:53,814 INFO L87 Difference]: Start difference. First operand 427 states and 1148 transitions. Second operand 3 states. [2020-11-30 01:47:53,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:47:53,859 INFO L93 Difference]: Finished difference Result 530 states and 1370 transitions. [2020-11-30 01:47:53,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:47:53,860 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-30 01:47:53,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:47:53,866 INFO L225 Difference]: With dead ends: 530 [2020-11-30 01:47:53,866 INFO L226 Difference]: Without dead ends: 508 [2020-11-30 01:47:53,867 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:47:53,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-11-30 01:47:53,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 468. [2020-11-30 01:47:53,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-11-30 01:47:53,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 1250 transitions. [2020-11-30 01:47:53,892 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 1250 transitions. Word has length 8 [2020-11-30 01:47:53,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:47:53,893 INFO L481 AbstractCegarLoop]: Abstraction has 468 states and 1250 transitions. [2020-11-30 01:47:53,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:47:53,895 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 1250 transitions. [2020-11-30 01:47:53,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:47:53,897 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:47:53,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:47:53,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:47:53,898 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:47:53,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:47:53,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1542370467, now seen corresponding path program 1 times [2020-11-30 01:47:53,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:47:53,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173918187] [2020-11-30 01:47:53,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:47:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:47:53,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:47:53,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173918187] [2020-11-30 01:47:53,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:47:53,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:47:53,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562461200] [2020-11-30 01:47:53,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:47:53,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:47:53,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:47:53,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:47:53,971 INFO L87 Difference]: Start difference. First operand 468 states and 1250 transitions. Second operand 3 states. [2020-11-30 01:47:53,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:47:53,989 INFO L93 Difference]: Finished difference Result 504 states and 1343 transitions. [2020-11-30 01:47:53,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:47:53,989 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-30 01:47:53,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:47:53,993 INFO L225 Difference]: With dead ends: 504 [2020-11-30 01:47:53,994 INFO L226 Difference]: Without dead ends: 504 [2020-11-30 01:47:53,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:47:53,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-11-30 01:47:54,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-11-30 01:47:54,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-11-30 01:47:54,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 1343 transitions. [2020-11-30 01:47:54,012 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 1343 transitions. Word has length 10 [2020-11-30 01:47:54,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:47:54,012 INFO L481 AbstractCegarLoop]: Abstraction has 504 states and 1343 transitions. [2020-11-30 01:47:54,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:47:54,012 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 1343 transitions. [2020-11-30 01:47:54,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 01:47:54,020 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:47:54,020 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:47:54,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:47:54,020 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:47:54,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:47:54,021 INFO L82 PathProgramCache]: Analyzing trace with hash -1453291019, now seen corresponding path program 1 times [2020-11-30 01:47:54,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:47:54,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844945006] [2020-11-30 01:47:54,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:47:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:47:54,110 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:47:54,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844945006] [2020-11-30 01:47:54,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592698026] [2020-11-30 01:47:54,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_beba93bf-f031-43ca-bd60-34bb63f9668e/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:47:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:47:54,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 01:47:54,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:47:54,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:47:54,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:47:54,534 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:47:54,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [509678277] [2020-11-30 01:47:54,545 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:269) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:213) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:360) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-11-30 01:47:54,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-30 01:47:54,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2020-11-30 01:47:54,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178195408] [2020-11-30 01:47:54,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 01:47:54,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:47:54,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 01:47:54,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:47:54,552 INFO L87 Difference]: Start difference. First operand 504 states and 1343 transitions. Second operand 10 states. [2020-11-30 01:47:54,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:47:54,806 INFO L93 Difference]: Finished difference Result 1250 states and 3210 transitions. [2020-11-30 01:47:54,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-30 01:47:54,807 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-11-30 01:47:54,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:47:54,817 INFO L225 Difference]: With dead ends: 1250 [2020-11-30 01:47:54,818 INFO L226 Difference]: Without dead ends: 1250 [2020-11-30 01:47:54,818 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-11-30 01:47:54,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-11-30 01:47:54,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 904. [2020-11-30 01:47:54,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904 states. [2020-11-30 01:47:54,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 2416 transitions. [2020-11-30 01:47:54,858 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 2416 transitions. Word has length 14 [2020-11-30 01:47:54,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:47:54,859 INFO L481 AbstractCegarLoop]: Abstraction has 904 states and 2416 transitions. [2020-11-30 01:47:54,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 01:47:54,859 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 2416 transitions. [2020-11-30 01:47:54,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 01:47:54,861 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:47:54,861 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:47:55,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:47:55,088 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:47:55,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:47:55,089 INFO L82 PathProgramCache]: Analyzing trace with hash 492744942, now seen corresponding path program 1 times [2020-11-30 01:47:55,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:47:55,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760702235] [2020-11-30 01:47:55,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:47:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:47:55,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:47:55,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760702235] [2020-11-30 01:47:55,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:47:55,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:47:55,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126428422] [2020-11-30 01:47:55,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:47:55,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:47:55,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:47:55,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:47:55,145 INFO L87 Difference]: Start difference. First operand 904 states and 2416 transitions. Second operand 3 states. [2020-11-30 01:47:55,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:47:55,177 INFO L93 Difference]: Finished difference Result 439 states and 991 transitions. [2020-11-30 01:47:55,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:47:55,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-11-30 01:47:55,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:47:55,181 INFO L225 Difference]: With dead ends: 439 [2020-11-30 01:47:55,181 INFO L226 Difference]: Without dead ends: 435 [2020-11-30 01:47:55,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:47:55,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-11-30 01:47:55,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 403. [2020-11-30 01:47:55,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2020-11-30 01:47:55,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 899 transitions. [2020-11-30 01:47:55,225 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 899 transitions. Word has length 16 [2020-11-30 01:47:55,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:47:55,225 INFO L481 AbstractCegarLoop]: Abstraction has 403 states and 899 transitions. [2020-11-30 01:47:55,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:47:55,225 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 899 transitions. [2020-11-30 01:47:55,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-30 01:47:55,226 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:47:55,226 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:47:55,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:47:55,227 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:47:55,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:47:55,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1972798213, now seen corresponding path program 1 times [2020-11-30 01:47:55,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:47:55,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478274837] [2020-11-30 01:47:55,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:47:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:47:55,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:47:55,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478274837] [2020-11-30 01:47:55,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:47:55,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 01:47:55,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560165182] [2020-11-30 01:47:55,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:47:55,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:47:55,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:47:55,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:47:55,289 INFO L87 Difference]: Start difference. First operand 403 states and 899 transitions. Second operand 5 states. [2020-11-30 01:47:55,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:47:55,384 INFO L93 Difference]: Finished difference Result 563 states and 1255 transitions. [2020-11-30 01:47:55,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:47:55,385 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-30 01:47:55,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:47:55,389 INFO L225 Difference]: With dead ends: 563 [2020-11-30 01:47:55,389 INFO L226 Difference]: Without dead ends: 563 [2020-11-30 01:47:55,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:47:55,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2020-11-30 01:47:55,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 441. [2020-11-30 01:47:55,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-11-30 01:47:55,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 990 transitions. [2020-11-30 01:47:55,406 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 990 transitions. Word has length 17 [2020-11-30 01:47:55,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:47:55,407 INFO L481 AbstractCegarLoop]: Abstraction has 441 states and 990 transitions. [2020-11-30 01:47:55,407 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:47:55,407 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 990 transitions. [2020-11-30 01:47:55,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 01:47:55,408 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:47:55,408 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:47:55,409 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:47:55,409 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:47:55,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:47:55,409 INFO L82 PathProgramCache]: Analyzing trace with hash -380326838, now seen corresponding path program 1 times [2020-11-30 01:47:55,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:47:55,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600177657] [2020-11-30 01:47:55,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:47:55,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:47:55,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:47:55,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600177657] [2020-11-30 01:47:55,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:47:55,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-30 01:47:55,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138343046] [2020-11-30 01:47:55,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-30 01:47:55,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:47:55,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-30 01:47:55,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-11-30 01:47:55,872 INFO L87 Difference]: Start difference. First operand 441 states and 990 transitions. Second operand 14 states. [2020-11-30 01:47:57,251 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-11-30 01:47:57,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:47:57,415 INFO L93 Difference]: Finished difference Result 846 states and 1850 transitions. [2020-11-30 01:47:57,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-30 01:47:57,416 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 21 [2020-11-30 01:47:57,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:47:57,422 INFO L225 Difference]: With dead ends: 846 [2020-11-30 01:47:57,422 INFO L226 Difference]: Without dead ends: 846 [2020-11-30 01:47:57,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=152, Invalid=604, Unknown=0, NotChecked=0, Total=756 [2020-11-30 01:47:57,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2020-11-30 01:47:57,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 548. [2020-11-30 01:47:57,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-11-30 01:47:57,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 1256 transitions. [2020-11-30 01:47:57,443 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 1256 transitions. Word has length 21 [2020-11-30 01:47:57,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:47:57,443 INFO L481 AbstractCegarLoop]: Abstraction has 548 states and 1256 transitions. [2020-11-30 01:47:57,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-30 01:47:57,443 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 1256 transitions. [2020-11-30 01:47:57,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 01:47:57,445 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:47:57,445 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:47:57,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 01:47:57,445 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:47:57,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:47:57,446 INFO L82 PathProgramCache]: Analyzing trace with hash -191252421, now seen corresponding path program 1 times [2020-11-30 01:47:57,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:47:57,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780973506] [2020-11-30 01:47:57,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:47:57,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:47:57,523 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:47:57,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:47:57,553 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:47:57,595 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 01:47:57,596 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:47:57,596 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 01:47:57,597 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-11-30 01:47:57,597 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-11-30 01:47:57,597 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-11-30 01:47:57,606 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [642] [642] L995-1-->L960: Formula: (let ((.cse0 (mod t1Thread1of1ForFork1_~tmp~0_In-1496153635 4294967296))) (and (= |~#arr~0.offset_In-1496153635| |t1Thread1of1ForFork1_push_#in~stack.offset_Out-1496153635|) (= |t1Thread1of1ForFork1_push_#in~x_Out-1496153635| .cse0) (= |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond_Out-1496153635| t1Thread1of1ForFork1_assume_abort_if_not_~cond_Out-1496153635) (= |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond_Out-1496153635| 1) (< .cse0 5) (= |t1Thread1of1ForFork1_push_#in~stack.base_Out-1496153635| |~#arr~0.base_In-1496153635|))) InVars {~#arr~0.offset=|~#arr~0.offset_In-1496153635|, t1Thread1of1ForFork1_~tmp~0=t1Thread1of1ForFork1_~tmp~0_In-1496153635, ~#arr~0.base=|~#arr~0.base_In-1496153635|} OutVars{t1Thread1of1ForFork1_push_#in~x=|t1Thread1of1ForFork1_push_#in~x_Out-1496153635|, ~#arr~0.offset=|~#arr~0.offset_In-1496153635|, t1Thread1of1ForFork1_push_#t~nondet36=|t1Thread1of1ForFork1_push_#t~nondet36_Out-1496153635|, t1Thread1of1ForFork1_push_~stack.offset=t1Thread1of1ForFork1_push_~stack.offset_Out-1496153635, t1Thread1of1ForFork1_push_#res=|t1Thread1of1ForFork1_push_#res_Out-1496153635|, t1Thread1of1ForFork1_push_~stack.base=t1Thread1of1ForFork1_push_~stack.base_Out-1496153635, t1Thread1of1ForFork1_push_#t~ret38=|t1Thread1of1ForFork1_push_#t~ret38_Out-1496153635|, t1Thread1of1ForFork1_assume_abort_if_not_~cond=t1Thread1of1ForFork1_assume_abort_if_not_~cond_Out-1496153635, t1Thread1of1ForFork1_~tmp~0=t1Thread1of1ForFork1_~tmp~0_In-1496153635, t1Thread1of1ForFork1_push_#in~stack.base=|t1Thread1of1ForFork1_push_#in~stack.base_Out-1496153635|, t1Thread1of1ForFork1_push_~x=t1Thread1of1ForFork1_push_~x_Out-1496153635, t1Thread1of1ForFork1_#t~nondet46=|t1Thread1of1ForFork1_#t~nondet46_Out-1496153635|, t1Thread1of1ForFork1_push_#in~stack.offset=|t1Thread1of1ForFork1_push_#in~stack.offset_Out-1496153635|, t1Thread1of1ForFork1_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork1_assume_abort_if_not_#in~cond_Out-1496153635|, ~#arr~0.base=|~#arr~0.base_In-1496153635|} AuxVars[] AssignedVars[t1Thread1of1ForFork1_push_#in~x, t1Thread1of1ForFork1_assume_abort_if_not_~cond, t1Thread1of1ForFork1_push_#in~stack.base, t1Thread1of1ForFork1_push_~x, t1Thread1of1ForFork1_push_#t~nondet36, t1Thread1of1ForFork1_push_~stack.offset, t1Thread1of1ForFork1_push_#res, t1Thread1of1ForFork1_#t~nondet46, t1Thread1of1ForFork1_push_~stack.base, t1Thread1of1ForFork1_push_#in~stack.offset, t1Thread1of1ForFork1_assume_abort_if_not_#in~cond, t1Thread1of1ForFork1_push_#t~ret38] because there is no mapped edge [2020-11-30 01:47:57,614 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [643] [643] L997-2-->L1000: Formula: (and (not (= (- 1) |t1Thread1of1ForFork1_#t~ret47_In1033330086|)) (= ~flag~0_Out1033330086 1) (= |t1Thread1of1ForFork1_reach_error_#t~nondet2.base_In1033330086| |t1Thread1of1ForFork1_reach_error_#t~nondet2.base_Out1033330086|) (= |t1Thread1of1ForFork1_reach_error_#t~nondet2.offset_In1033330086| |t1Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out1033330086|) (<= |t1Thread1of1ForFork1_#t~ret47_In1033330086| 2147483647) (<= 0 (+ |t1Thread1of1ForFork1_#t~ret47_In1033330086| 2147483648))) InVars {t1Thread1of1ForFork1_#t~ret47=|t1Thread1of1ForFork1_#t~ret47_In1033330086|, t1Thread1of1ForFork1_reach_error_#t~nondet2.base=|t1Thread1of1ForFork1_reach_error_#t~nondet2.base_In1033330086|, t1Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t1Thread1of1ForFork1_reach_error_#t~nondet2.offset_In1033330086|} OutVars{~flag~0=~flag~0_Out1033330086, t1Thread1of1ForFork1_#t~ret47=|t1Thread1of1ForFork1_#t~ret47_Out1033330086|, t1Thread1of1ForFork1_reach_error_#t~nondet2.base=|t1Thread1of1ForFork1_reach_error_#t~nondet2.base_Out1033330086|, t1Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t1Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out1033330086|} AuxVars[] AssignedVars[~flag~0, t1Thread1of1ForFork1_#t~ret47, t1Thread1of1ForFork1_reach_error_#t~nondet2.base, t1Thread1of1ForFork1_reach_error_#t~nondet2.offset] because there is no mapped edge [2020-11-30 01:47:57,621 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [652] [652] L1012-4-->L1007-6: Formula: (and (= (+ t2Thread1of1ForFork0_~i~1_In-560490184 1) t2Thread1of1ForFork0_~i~1_Out-560490184) (= (store |#pthreadsMutex_In-560490184| |~#m~0.base_In-560490184| (store (select |#pthreadsMutex_In-560490184| |~#m~0.base_In-560490184|) |~#m~0.offset_In-560490184| 0)) |#pthreadsMutex_Out-560490184|) (= |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset_Out-560490184| |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset_In-560490184|) (= |t2Thread1of1ForFork0_reach_error_#t~nondet2.base_Out-560490184| |t2Thread1of1ForFork0_reach_error_#t~nondet2.base_In-560490184|) (not (= |t2Thread1of1ForFork0_#t~ret50_In-560490184| (- 2)))) InVars {t2Thread1of1ForFork0_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork0_reach_error_#t~nondet2.offset_In-560490184|, #pthreadsMutex=|#pthreadsMutex_In-560490184|, t2Thread1of1ForFork0_reach_error_#t~nondet2.base=|t2Thread1of1ForFork0_reach_error_#t~nondet2.base_In-560490184|, ~#m~0.base=|~#m~0.base_In-560490184|, t2Thread1of1ForFork0_#t~ret50=|t2Thread1of1ForFork0_#t~ret50_In-560490184|, ~#m~0.offset=|~#m~0.offset_In-560490184|, t2Thread1of1ForFork0_~i~1=t2Thread1of1ForFork0_~i~1_In-560490184} OutVars{#pthreadsMutex=|#pthreadsMutex_Out-560490184|, t2Thread1of1ForFork0_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork0_reach_error_#t~nondet2.offset_Out-560490184|, t2Thread1of1ForFork0_reach_error_#t~nondet2.base=|t2Thread1of1ForFork0_reach_error_#t~nondet2.base_Out-560490184|, ~#m~0.base=|~#m~0.base_In-560490184|, t2Thread1of1ForFork0_#t~ret50=|t2Thread1of1ForFork0_#t~ret50_Out-560490184|, ~#m~0.offset=|~#m~0.offset_In-560490184|, t2Thread1of1ForFork0_#t~post48=|t2Thread1of1ForFork0_#t~post48_Out-560490184|, t2Thread1of1ForFork0_~i~1=t2Thread1of1ForFork0_~i~1_Out-560490184} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork0_reach_error_#t~nondet2.offset, t2Thread1of1ForFork0_reach_error_#t~nondet2.base, t2Thread1of1ForFork0_#t~ret50, t2Thread1of1ForFork0_#t~post48, t2Thread1of1ForFork0_~i~1] because there is no mapped edge [2020-11-30 01:47:57,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:47:57 BasicIcfg [2020-11-30 01:47:57,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:47:57,697 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:47:57,697 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:47:57,697 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:47:57,698 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:47:46" (3/4) ... [2020-11-30 01:47:57,699 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:47:57,702 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [642] [642] L995-1-->L960: Formula: (let ((.cse0 (mod t1Thread1of1ForFork1_~tmp~0_In-1496153635 4294967296))) (and (= |~#arr~0.offset_In-1496153635| |t1Thread1of1ForFork1_push_#in~stack.offset_Out-1496153635|) (= |t1Thread1of1ForFork1_push_#in~x_Out-1496153635| .cse0) (= |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond_Out-1496153635| t1Thread1of1ForFork1_assume_abort_if_not_~cond_Out-1496153635) (= |t1Thread1of1ForFork1_assume_abort_if_not_#in~cond_Out-1496153635| 1) (< .cse0 5) (= |t1Thread1of1ForFork1_push_#in~stack.base_Out-1496153635| |~#arr~0.base_In-1496153635|))) InVars {~#arr~0.offset=|~#arr~0.offset_In-1496153635|, t1Thread1of1ForFork1_~tmp~0=t1Thread1of1ForFork1_~tmp~0_In-1496153635, ~#arr~0.base=|~#arr~0.base_In-1496153635|} OutVars{t1Thread1of1ForFork1_push_#in~x=|t1Thread1of1ForFork1_push_#in~x_Out-1496153635|, ~#arr~0.offset=|~#arr~0.offset_In-1496153635|, t1Thread1of1ForFork1_push_#t~nondet36=|t1Thread1of1ForFork1_push_#t~nondet36_Out-1496153635|, t1Thread1of1ForFork1_push_~stack.offset=t1Thread1of1ForFork1_push_~stack.offset_Out-1496153635, t1Thread1of1ForFork1_push_#res=|t1Thread1of1ForFork1_push_#res_Out-1496153635|, t1Thread1of1ForFork1_push_~stack.base=t1Thread1of1ForFork1_push_~stack.base_Out-1496153635, t1Thread1of1ForFork1_push_#t~ret38=|t1Thread1of1ForFork1_push_#t~ret38_Out-1496153635|, t1Thread1of1ForFork1_assume_abort_if_not_~cond=t1Thread1of1ForFork1_assume_abort_if_not_~cond_Out-1496153635, t1Thread1of1ForFork1_~tmp~0=t1Thread1of1ForFork1_~tmp~0_In-1496153635, t1Thread1of1ForFork1_push_#in~stack.base=|t1Thread1of1ForFork1_push_#in~stack.base_Out-1496153635|, t1Thread1of1ForFork1_push_~x=t1Thread1of1ForFork1_push_~x_Out-1496153635, t1Thread1of1ForFork1_#t~nondet46=|t1Thread1of1ForFork1_#t~nondet46_Out-1496153635|, t1Thread1of1ForFork1_push_#in~stack.offset=|t1Thread1of1ForFork1_push_#in~stack.offset_Out-1496153635|, t1Thread1of1ForFork1_assume_abort_if_not_#in~cond=|t1Thread1of1ForFork1_assume_abort_if_not_#in~cond_Out-1496153635|, ~#arr~0.base=|~#arr~0.base_In-1496153635|} AuxVars[] AssignedVars[t1Thread1of1ForFork1_push_#in~x, t1Thread1of1ForFork1_assume_abort_if_not_~cond, t1Thread1of1ForFork1_push_#in~stack.base, t1Thread1of1ForFork1_push_~x, t1Thread1of1ForFork1_push_#t~nondet36, t1Thread1of1ForFork1_push_~stack.offset, t1Thread1of1ForFork1_push_#res, t1Thread1of1ForFork1_#t~nondet46, t1Thread1of1ForFork1_push_~stack.base, t1Thread1of1ForFork1_push_#in~stack.offset, t1Thread1of1ForFork1_assume_abort_if_not_#in~cond, t1Thread1of1ForFork1_push_#t~ret38] because there is no mapped edge [2020-11-30 01:47:57,707 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [643] [643] L997-2-->L1000: Formula: (and (not (= (- 1) |t1Thread1of1ForFork1_#t~ret47_In1033330086|)) (= ~flag~0_Out1033330086 1) (= |t1Thread1of1ForFork1_reach_error_#t~nondet2.base_In1033330086| |t1Thread1of1ForFork1_reach_error_#t~nondet2.base_Out1033330086|) (= |t1Thread1of1ForFork1_reach_error_#t~nondet2.offset_In1033330086| |t1Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out1033330086|) (<= |t1Thread1of1ForFork1_#t~ret47_In1033330086| 2147483647) (<= 0 (+ |t1Thread1of1ForFork1_#t~ret47_In1033330086| 2147483648))) InVars {t1Thread1of1ForFork1_#t~ret47=|t1Thread1of1ForFork1_#t~ret47_In1033330086|, t1Thread1of1ForFork1_reach_error_#t~nondet2.base=|t1Thread1of1ForFork1_reach_error_#t~nondet2.base_In1033330086|, t1Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t1Thread1of1ForFork1_reach_error_#t~nondet2.offset_In1033330086|} OutVars{~flag~0=~flag~0_Out1033330086, t1Thread1of1ForFork1_#t~ret47=|t1Thread1of1ForFork1_#t~ret47_Out1033330086|, t1Thread1of1ForFork1_reach_error_#t~nondet2.base=|t1Thread1of1ForFork1_reach_error_#t~nondet2.base_Out1033330086|, t1Thread1of1ForFork1_reach_error_#t~nondet2.offset=|t1Thread1of1ForFork1_reach_error_#t~nondet2.offset_Out1033330086|} AuxVars[] AssignedVars[~flag~0, t1Thread1of1ForFork1_#t~ret47, t1Thread1of1ForFork1_reach_error_#t~nondet2.base, t1Thread1of1ForFork1_reach_error_#t~nondet2.offset] because there is no mapped edge [2020-11-30 01:47:57,711 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [652] [652] L1012-4-->L1007-6: Formula: (and (= (+ t2Thread1of1ForFork0_~i~1_In-560490184 1) t2Thread1of1ForFork0_~i~1_Out-560490184) (= (store |#pthreadsMutex_In-560490184| |~#m~0.base_In-560490184| (store (select |#pthreadsMutex_In-560490184| |~#m~0.base_In-560490184|) |~#m~0.offset_In-560490184| 0)) |#pthreadsMutex_Out-560490184|) (= |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset_Out-560490184| |t2Thread1of1ForFork0_reach_error_#t~nondet2.offset_In-560490184|) (= |t2Thread1of1ForFork0_reach_error_#t~nondet2.base_Out-560490184| |t2Thread1of1ForFork0_reach_error_#t~nondet2.base_In-560490184|) (not (= |t2Thread1of1ForFork0_#t~ret50_In-560490184| (- 2)))) InVars {t2Thread1of1ForFork0_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork0_reach_error_#t~nondet2.offset_In-560490184|, #pthreadsMutex=|#pthreadsMutex_In-560490184|, t2Thread1of1ForFork0_reach_error_#t~nondet2.base=|t2Thread1of1ForFork0_reach_error_#t~nondet2.base_In-560490184|, ~#m~0.base=|~#m~0.base_In-560490184|, t2Thread1of1ForFork0_#t~ret50=|t2Thread1of1ForFork0_#t~ret50_In-560490184|, ~#m~0.offset=|~#m~0.offset_In-560490184|, t2Thread1of1ForFork0_~i~1=t2Thread1of1ForFork0_~i~1_In-560490184} OutVars{#pthreadsMutex=|#pthreadsMutex_Out-560490184|, t2Thread1of1ForFork0_reach_error_#t~nondet2.offset=|t2Thread1of1ForFork0_reach_error_#t~nondet2.offset_Out-560490184|, t2Thread1of1ForFork0_reach_error_#t~nondet2.base=|t2Thread1of1ForFork0_reach_error_#t~nondet2.base_Out-560490184|, ~#m~0.base=|~#m~0.base_In-560490184|, t2Thread1of1ForFork0_#t~ret50=|t2Thread1of1ForFork0_#t~ret50_Out-560490184|, ~#m~0.offset=|~#m~0.offset_In-560490184|, t2Thread1of1ForFork0_#t~post48=|t2Thread1of1ForFork0_#t~post48_Out-560490184|, t2Thread1of1ForFork0_~i~1=t2Thread1of1ForFork0_~i~1_Out-560490184} AuxVars[] AssignedVars[#pthreadsMutex, t2Thread1of1ForFork0_reach_error_#t~nondet2.offset, t2Thread1of1ForFork0_reach_error_#t~nondet2.base, t2Thread1of1ForFork0_#t~ret50, t2Thread1of1ForFork0_#t~post48, t2Thread1of1ForFork0_~i~1] because there is no mapped edge [2020-11-30 01:47:57,787 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_beba93bf-f031-43ca-bd60-34bb63f9668e/bin/utaipan/witness.graphml [2020-11-30 01:47:57,788 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:47:57,789 INFO L168 Benchmark]: Toolchain (without parser) took 13134.74 ms. Allocated memory was 132.1 MB in the beginning and 237.0 MB in the end (delta: 104.9 MB). Free memory was 102.7 MB in the beginning and 146.4 MB in the end (delta: -43.8 MB). Peak memory consumption was 61.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:47:57,789 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 90.2 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:47:57,790 INFO L168 Benchmark]: CACSL2BoogieTranslator took 921.13 ms. Allocated memory is still 132.1 MB. Free memory was 102.5 MB in the beginning and 61.2 MB in the end (delta: 41.2 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:47:57,791 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.07 ms. Allocated memory is still 132.1 MB. Free memory was 61.2 MB in the beginning and 58.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:47:57,791 INFO L168 Benchmark]: Boogie Preprocessor took 44.05 ms. Allocated memory is still 132.1 MB. Free memory was 58.6 MB in the beginning and 56.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:47:57,792 INFO L168 Benchmark]: RCFGBuilder took 804.53 ms. Allocated memory is still 132.1 MB. Free memory was 56.5 MB in the beginning and 79.3 MB in the end (delta: -22.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:47:57,792 INFO L168 Benchmark]: TraceAbstraction took 11213.61 ms. Allocated memory was 132.1 MB in the beginning and 237.0 MB in the end (delta: 104.9 MB). Free memory was 79.3 MB in the beginning and 156.9 MB in the end (delta: -77.7 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:47:57,793 INFO L168 Benchmark]: Witness Printer took 91.13 ms. Allocated memory is still 237.0 MB. Free memory was 156.9 MB in the beginning and 146.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:47:57,796 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 90.2 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 921.13 ms. Allocated memory is still 132.1 MB. Free memory was 102.5 MB in the beginning and 61.2 MB in the end (delta: 41.2 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.07 ms. Allocated memory is still 132.1 MB. Free memory was 61.2 MB in the beginning and 58.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.05 ms. Allocated memory is still 132.1 MB. Free memory was 58.6 MB in the beginning and 56.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 804.53 ms. Allocated memory is still 132.1 MB. Free memory was 56.5 MB in the beginning and 79.3 MB in the end (delta: -22.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11213.61 ms. Allocated memory was 132.1 MB in the beginning and 237.0 MB in the end (delta: 104.9 MB). Free memory was 79.3 MB in the beginning and 156.9 MB in the end (delta: -77.7 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. * Witness Printer took 91.13 ms. Allocated memory is still 237.0 MB. Free memory was 156.9 MB in the beginning and 146.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 5728 VarBasedMoverChecksPositive, 100 VarBasedMoverChecksNegative, 35 SemBasedMoverChecksPositive, 65 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 345 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.3s, 156 PlacesBefore, 40 PlacesAfterwards, 163 TransitionsBefore, 41 TransitionsAfterwards, 7732 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 91 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 26 ConcurrentYvCompositions, 6 ChoiceCompositions, 157 TotalNumberOfCompositions, 13131 MoverChecksTotal - CounterExampleResult [Line: 20]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L935] 0 static int top=0; [L936] 0 static unsigned int arr[(5)]; [L937] 0 pthread_mutex_t m; [L938] 0 _Bool flag=(0); [L1021] 0 pthread_t id1, id2; [L1023] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={9:0}, flag=0, m={7:0}, top=0] [L990] 1 int i; [L991] 1 unsigned int tmp; [L992] 1 i=0 VAL [arr={9:0}, flag=0, m={7:0}, top=0] [L992] COND TRUE 1 i<(5) [L995] 1 tmp = __VERIFIER_nondet_uint() [L962] COND FALSE 1 !(top==(5)) [L954] 1 return top; [L1024] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={9:0}, flag=0, m={7:0}, top=0] [L1006] 2 int i; [L1007] 2 i=0 VAL [arr={9:0}, flag=0, m={7:0}, top=0] [L969] 1 stack[get_top()] = x [L946] 1 top++ [L972] 1 return 0; [L992] 1 i++ VAL [arr={9:0}, flag=1, m={7:0}, top=1] [L1007] COND TRUE 2 i<(5) [L1010] COND TRUE 2 \read(flag) [L954] 2 return top; [L976] COND FALSE 2 !(get_top()==0) [L950] 2 top-- VAL [arr={9:0}, flag=1, m={7:0}, top=0] [L954] 2 return top; VAL [arr={9:0}, flag=1, m={7:0}, top=0] [L984] EXPR 2 stack[get_top()] [L984] 2 return stack[get_top()]; [L1007] COND TRUE 2 i<(5) [L1010] COND TRUE 2 \read(flag) [L954] 2 return top; [L976] COND TRUE 2 get_top()==0 [L979] 2 return (-2); [L1012] COND TRUE 2 !(pop(arr)!=(-2)) [L20] COND FALSE 2 !(0) [L20] 2 __assert_fail ("0", "stack-2.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [arr={9:0}, flag=1, m={7:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 150 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.8s, OverallIterations: 8, TraceHistogramMax: 2, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.4s, HoareTripleCheckerStatistics: 364 SDtfs, 494 SDslu, 1032 SDs, 0 SdLazy, 805 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=904occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 991 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 10695 SizeOfPredicates, 2 NumberOfNonLiveVariables, 173 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 3/9 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 incorrect! Received shutdown request...