./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stack_longest-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_886938d0-f38f-483f-bf86-24e3df17cc3a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_886938d0-f38f-483f-bf86-24e3df17cc3a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_886938d0-f38f-483f-bf86-24e3df17cc3a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_886938d0-f38f-483f-bf86-24e3df17cc3a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stack_longest-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_886938d0-f38f-483f-bf86-24e3df17cc3a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_886938d0-f38f-483f-bf86-24e3df17cc3a/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 bad9cc2e90a70823ddce7e56d5b422bec700ab42 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-7b2dab5 [2020-12-09 04:45:13,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 04:45:13,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 04:45:13,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 04:45:13,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 04:45:13,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 04:45:13,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 04:45:13,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 04:45:13,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 04:45:13,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 04:45:13,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 04:45:13,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 04:45:13,648 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 04:45:13,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 04:45:13,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 04:45:13,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 04:45:13,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 04:45:13,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 04:45:13,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 04:45:13,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 04:45:13,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 04:45:13,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 04:45:13,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 04:45:13,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 04:45:13,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 04:45:13,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 04:45:13,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 04:45:13,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 04:45:13,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 04:45:13,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 04:45:13,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 04:45:13,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 04:45:13,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 04:45:13,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 04:45:13,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 04:45:13,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 04:45:13,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 04:45:13,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 04:45:13,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 04:45:13,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 04:45:13,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 04:45:13,673 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_886938d0-f38f-483f-bf86-24e3df17cc3a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 04:45:13,696 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 04:45:13,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 04:45:13,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 04:45:13,697 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 04:45:13,697 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 04:45:13,697 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 04:45:13,698 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 04:45:13,698 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 04:45:13,698 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 04:45:13,698 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 04:45:13,698 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 04:45:13,698 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 04:45:13,699 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 04:45:13,699 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 04:45:13,699 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 04:45:13,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 04:45:13,700 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 04:45:13,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 04:45:13,700 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 04:45:13,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 04:45:13,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 04:45:13,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 04:45:13,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 04:45:13,701 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 04:45:13,701 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 04:45:13,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 04:45:13,701 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 04:45:13,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 04:45:13,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 04:45:13,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 04:45:13,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 04:45:13,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 04:45:13,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 04:45:13,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 04:45:13,702 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 04:45:13,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 04:45:13,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 04:45:13,703 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 04:45:13,703 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 04:45:13,703 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_886938d0-f38f-483f-bf86-24e3df17cc3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_886938d0-f38f-483f-bf86-24e3df17cc3a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bad9cc2e90a70823ddce7e56d5b422bec700ab42 [2020-12-09 04:45:13,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 04:45:13,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 04:45:13,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 04:45:13,901 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 04:45:13,901 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 04:45:13,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_886938d0-f38f-483f-bf86-24e3df17cc3a/bin/utaipan/../../sv-benchmarks/c/pthread/stack_longest-1.i [2020-12-09 04:45:13,942 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_886938d0-f38f-483f-bf86-24e3df17cc3a/bin/utaipan/data/65cc66ade/0a27fd0b86924b8f96c98b4f7f809dbd/FLAG9f3a4551c [2020-12-09 04:45:14,365 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 04:45:14,365 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_886938d0-f38f-483f-bf86-24e3df17cc3a/sv-benchmarks/c/pthread/stack_longest-1.i [2020-12-09 04:45:14,380 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_886938d0-f38f-483f-bf86-24e3df17cc3a/bin/utaipan/data/65cc66ade/0a27fd0b86924b8f96c98b4f7f809dbd/FLAG9f3a4551c [2020-12-09 04:45:14,392 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_886938d0-f38f-483f-bf86-24e3df17cc3a/bin/utaipan/data/65cc66ade/0a27fd0b86924b8f96c98b4f7f809dbd [2020-12-09 04:45:14,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 04:45:14,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 04:45:14,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 04:45:14,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 04:45:14,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 04:45:14,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:45:14" (1/1) ... [2020-12-09 04:45:14,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@114edf0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:14, skipping insertion in model container [2020-12-09 04:45:14,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:45:14" (1/1) ... [2020-12-09 04:45:14,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 04:45:14,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 04:45:14,731 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_886938d0-f38f-483f-bf86-24e3df17cc3a/sv-benchmarks/c/pthread/stack_longest-1.i[41530,41543] [2020-12-09 04:45:14,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:45:14,765 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 04:45:14,800 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_886938d0-f38f-483f-bf86-24e3df17cc3a/sv-benchmarks/c/pthread/stack_longest-1.i[41530,41543] [2020-12-09 04:45:14,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:45:14,907 INFO L208 MainTranslator]: Completed translation [2020-12-09 04:45:14,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:14 WrapperNode [2020-12-09 04:45:14,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 04:45:14,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 04:45:14,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 04:45:14,908 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 04:45:14,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:14" (1/1) ... [2020-12-09 04:45:14,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:14" (1/1) ... [2020-12-09 04:45:14,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 04:45:14,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 04:45:14,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 04:45:14,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 04:45:14,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:14" (1/1) ... [2020-12-09 04:45:14,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:14" (1/1) ... [2020-12-09 04:45:14,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:14" (1/1) ... [2020-12-09 04:45:14,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:14" (1/1) ... [2020-12-09 04:45:14,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:14" (1/1) ... [2020-12-09 04:45:14,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:14" (1/1) ... [2020-12-09 04:45:14,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:14" (1/1) ... [2020-12-09 04:45:14,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 04:45:14,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 04:45:14,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 04:45:14,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 04:45:14,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_886938d0-f38f-483f-bf86-24e3df17cc3a/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 [2020-12-09 04:45:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2020-12-09 04:45:15,064 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2020-12-09 04:45:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2020-12-09 04:45:15,064 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2020-12-09 04:45:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 04:45:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 04:45:15,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 04:45:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 04:45:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-12-09 04:45:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 04:45:15,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 04:45:15,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 04:45:15,067 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-09 04:45:15,396 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 04:45:15,396 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2020-12-09 04:45:15,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:45:15 BoogieIcfgContainer [2020-12-09 04:45:15,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 04:45:15,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 04:45:15,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 04:45:15,401 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 04:45:15,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:45:14" (1/3) ... [2020-12-09 04:45:15,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab37a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:45:15, skipping insertion in model container [2020-12-09 04:45:15,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:45:14" (2/3) ... [2020-12-09 04:45:15,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ab37a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:45:15, skipping insertion in model container [2020-12-09 04:45:15,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:45:15" (3/3) ... [2020-12-09 04:45:15,403 INFO L111 eAbstractionObserver]: Analyzing ICFG stack_longest-1.i [2020-12-09 04:45:15,412 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-09 04:45:15,413 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 04:45:15,415 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-09 04:45:15,416 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-09 04:45:15,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,445 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,445 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,445 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,446 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,446 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,447 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,447 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,447 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,447 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,447 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,447 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,447 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,447 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,448 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,448 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,448 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,448 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,448 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,448 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,448 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,449 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,449 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,449 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,449 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,449 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,449 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,449 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,449 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,450 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,450 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,450 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,450 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,450 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,450 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,450 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,450 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,455 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,456 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,456 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,456 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,457 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,457 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,457 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,457 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,457 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,457 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,457 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,457 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,457 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,457 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,458 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,458 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,458 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,458 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,458 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,458 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,458 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,458 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,459 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,459 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,459 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,459 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,459 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,459 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,459 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,460 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,460 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,460 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,460 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,460 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,460 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,460 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,460 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,460 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,461 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,461 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,461 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,461 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,461 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,461 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,461 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,461 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,462 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,462 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,462 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,462 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,462 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,462 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,462 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,463 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,463 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,463 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,463 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,463 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,463 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,463 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,463 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,463 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,464 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,464 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,464 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,464 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,464 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,464 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,465 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,465 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,465 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,465 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,465 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,465 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,465 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,465 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,466 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,466 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,466 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,466 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,466 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,466 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,466 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,466 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,466 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,467 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,467 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,467 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,468 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,468 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,468 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,468 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,468 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,468 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,468 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,468 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,468 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,469 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,469 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,469 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,469 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,469 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,469 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,469 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,469 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,470 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,470 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,470 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,470 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,470 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,470 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,470 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,470 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,471 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,471 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,471 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,471 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,471 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,471 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,471 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,471 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,472 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,472 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,472 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,472 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,472 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,472 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,472 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,472 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,472 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,472 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,472 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,473 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,473 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,473 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,473 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,473 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,473 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,473 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,473 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,473 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,474 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,474 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,474 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,474 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,474 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,474 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,474 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,474 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,474 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,475 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,475 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,475 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,475 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,475 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,475 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,475 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,475 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,475 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,476 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,476 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,476 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,476 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,476 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,476 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,476 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,476 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,476 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,477 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,477 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,477 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,477 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,477 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,477 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,477 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,477 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,477 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,478 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,478 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,478 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,478 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,478 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,478 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,478 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,478 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,479 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,479 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,479 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,479 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,479 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,479 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,479 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,479 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,479 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,480 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,480 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,480 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,480 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,480 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,480 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,480 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,480 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,480 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,481 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,481 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,481 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,481 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,481 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,481 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,481 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,481 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,481 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,482 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,482 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,482 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,482 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,483 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~x| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,484 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,484 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~ret47| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,484 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~nondet36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,484 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,484 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,484 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,484 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,485 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#t~ret38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,485 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~post44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,485 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,485 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,485 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,485 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,485 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_inc_top_#t~post33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,485 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_push_~x not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,485 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,486 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet46| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,486 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,486 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,486 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,486 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_push_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,486 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork0_#t~nondet45| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,490 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret39| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,490 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,490 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,490 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_dec_top_#t~post34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,490 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,490 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,490 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~ret42| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,490 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~ret50| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,491 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,491 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~nondet49| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,491 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~mem43| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,491 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_get_top_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,491 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#t~nondet40| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,491 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,491 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#t~post48| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,491 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,491 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork1_pop_#in~stack.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,491 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,492 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork1_pop_~stack.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-09 04:45:15,496 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-12-09 04:45:15,504 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-09 04:45:15,518 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 04:45:15,519 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 04:45:15,519 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 04:45:15,519 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 04:45:15,519 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 04:45:15,519 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 04:45:15,519 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 04:45:15,519 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 04:45:15,529 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-12-09 04:45:15,531 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 146 places, 151 transitions, 324 flow [2020-12-09 04:45:15,533 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 146 places, 151 transitions, 324 flow [2020-12-09 04:45:15,534 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 146 places, 151 transitions, 324 flow [2020-12-09 04:45:15,579 INFO L129 PetriNetUnfolder]: 11/151 cut-off events. [2020-12-09 04:45:15,580 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-12-09 04:45:15,587 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 151 events. 11/151 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 402 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 115. Up to 3 conditions per place. [2020-12-09 04:45:15,593 INFO L116 LiptonReduction]: Number of co-enabled transitions 6764 [2020-12-09 04:45:18,550 WARN L197 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2020-12-09 04:45:18,702 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-12-09 04:45:19,070 WARN L197 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2020-12-09 04:45:19,210 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-12-09 04:45:20,440 WARN L197 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 135 [2020-12-09 04:45:20,845 WARN L197 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-12-09 04:45:21,612 WARN L197 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 135 [2020-12-09 04:45:21,985 WARN L197 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-12-09 04:45:22,133 INFO L131 LiptonReduction]: Checked pairs total: 10318 [2020-12-09 04:45:22,133 INFO L133 LiptonReduction]: Total number of compositions: 136 [2020-12-09 04:45:22,137 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 41 transitions, 104 flow [2020-12-09 04:45:22,153 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 335 states. [2020-12-09 04:45:22,154 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-12-09 04:45:22,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 04:45:22,157 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:45:22,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 04:45:22,158 INFO L429 AbstractCegarLoop]: === Iteration 1 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:45:22,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:45:22,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1118941735, now seen corresponding path program 1 times [2020-12-09 04:45:22,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:45:22,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299137341] [2020-12-09 04:45:22,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:45:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:45:22,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:45:22,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299137341] [2020-12-09 04:45:22,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:45:22,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 04:45:22,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299306646] [2020-12-09 04:45:22,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 04:45:22,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:45:22,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 04:45:22,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:45:22,320 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 3 states. [2020-12-09 04:45:22,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:45:22,365 INFO L93 Difference]: Finished difference Result 602 states and 1541 transitions. [2020-12-09 04:45:22,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 04:45:22,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-09 04:45:22,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:45:22,380 INFO L225 Difference]: With dead ends: 602 [2020-12-09 04:45:22,380 INFO L226 Difference]: Without dead ends: 580 [2020-12-09 04:45:22,381 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 [2020-12-09 04:45:22,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-12-09 04:45:22,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 427. [2020-12-09 04:45:22,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-12-09 04:45:22,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 1148 transitions. [2020-12-09 04:45:22,441 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 1148 transitions. Word has length 6 [2020-12-09 04:45:22,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:45:22,441 INFO L481 AbstractCegarLoop]: Abstraction has 427 states and 1148 transitions. [2020-12-09 04:45:22,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 04:45:22,441 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 1148 transitions. [2020-12-09 04:45:22,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 04:45:22,442 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:45:22,442 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:45:22,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 04:45:22,442 INFO L429 AbstractCegarLoop]: === Iteration 2 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:45:22,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:45:22,443 INFO L82 PathProgramCache]: Analyzing trace with hash 635849637, now seen corresponding path program 1 times [2020-12-09 04:45:22,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:45:22,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934856653] [2020-12-09 04:45:22,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:45:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:45:22,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:45:22,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934856653] [2020-12-09 04:45:22,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:45:22,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 04:45:22,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62494455] [2020-12-09 04:45:22,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 04:45:22,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:45:22,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 04:45:22,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:45:22,509 INFO L87 Difference]: Start difference. First operand 427 states and 1148 transitions. Second operand 3 states. [2020-12-09 04:45:22,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:45:22,523 INFO L93 Difference]: Finished difference Result 530 states and 1370 transitions. [2020-12-09 04:45:22,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 04:45:22,523 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-09 04:45:22,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:45:22,527 INFO L225 Difference]: With dead ends: 530 [2020-12-09 04:45:22,527 INFO L226 Difference]: Without dead ends: 508 [2020-12-09 04:45:22,527 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 [2020-12-09 04:45:22,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-12-09 04:45:22,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 468. [2020-12-09 04:45:22,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-12-09 04:45:22,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 1250 transitions. [2020-12-09 04:45:22,549 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 1250 transitions. Word has length 8 [2020-12-09 04:45:22,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:45:22,549 INFO L481 AbstractCegarLoop]: Abstraction has 468 states and 1250 transitions. [2020-12-09 04:45:22,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 04:45:22,549 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 1250 transitions. [2020-12-09 04:45:22,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 04:45:22,550 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:45:22,550 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:45:22,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 04:45:22,551 INFO L429 AbstractCegarLoop]: === Iteration 3 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:45:22,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:45:22,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1340677000, now seen corresponding path program 1 times [2020-12-09 04:45:22,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:45:22,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89026278] [2020-12-09 04:45:22,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:45:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:45:22,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:45:22,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89026278] [2020-12-09 04:45:22,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:45:22,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 04:45:22,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406648401] [2020-12-09 04:45:22,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 04:45:22,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:45:22,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 04:45:22,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:45:22,602 INFO L87 Difference]: Start difference. First operand 468 states and 1250 transitions. Second operand 3 states. [2020-12-09 04:45:22,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:45:22,614 INFO L93 Difference]: Finished difference Result 504 states and 1343 transitions. [2020-12-09 04:45:22,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 04:45:22,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-09 04:45:22,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:45:22,619 INFO L225 Difference]: With dead ends: 504 [2020-12-09 04:45:22,619 INFO L226 Difference]: Without dead ends: 504 [2020-12-09 04:45:22,620 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 [2020-12-09 04:45:22,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-12-09 04:45:22,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-12-09 04:45:22,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-12-09 04:45:22,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 1343 transitions. [2020-12-09 04:45:22,639 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 1343 transitions. Word has length 10 [2020-12-09 04:45:22,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:45:22,640 INFO L481 AbstractCegarLoop]: Abstraction has 504 states and 1343 transitions. [2020-12-09 04:45:22,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 04:45:22,640 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 1343 transitions. [2020-12-09 04:45:22,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 04:45:22,641 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:45:22,642 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:45:22,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 04:45:22,642 INFO L429 AbstractCegarLoop]: === Iteration 4 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:45:22,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:45:22,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1155325080, now seen corresponding path program 1 times [2020-12-09 04:45:22,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:45:22,643 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878949058] [2020-12-09 04:45:22,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:45:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:45:22,700 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:45:22,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878949058] [2020-12-09 04:45:22,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797229742] [2020-12-09 04:45:22,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_886938d0-f38f-483f-bf86-24e3df17cc3a/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 [2020-12-09 04:45:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:45:22,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 04:45:22,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:45:22,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:45:22,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:45:22,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:45:22,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1969706060] [2020-12-09 04:45:22,857 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:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:380) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) 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) [2020-12-09 04:45:22,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 04:45:22,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2020-12-09 04:45:22,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107601055] [2020-12-09 04:45:22,859 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-09 04:45:22,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:45:22,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-09 04:45:22,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-12-09 04:45:22,860 INFO L87 Difference]: Start difference. First operand 504 states and 1343 transitions. Second operand 10 states. [2020-12-09 04:45:23,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:45:23,011 INFO L93 Difference]: Finished difference Result 1250 states and 3210 transitions. [2020-12-09 04:45:23,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-09 04:45:23,012 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2020-12-09 04:45:23,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:45:23,019 INFO L225 Difference]: With dead ends: 1250 [2020-12-09 04:45:23,019 INFO L226 Difference]: Without dead ends: 1250 [2020-12-09 04:45:23,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2020-12-09 04:45:23,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-12-09 04:45:23,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 904. [2020-12-09 04:45:23,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 904 states. [2020-12-09 04:45:23,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 904 states to 904 states and 2416 transitions. [2020-12-09 04:45:23,050 INFO L78 Accepts]: Start accepts. Automaton has 904 states and 2416 transitions. Word has length 14 [2020-12-09 04:45:23,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:45:23,050 INFO L481 AbstractCegarLoop]: Abstraction has 904 states and 2416 transitions. [2020-12-09 04:45:23,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-09 04:45:23,050 INFO L276 IsEmpty]: Start isEmpty. Operand 904 states and 2416 transitions. [2020-12-09 04:45:23,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 04:45:23,051 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:45:23,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:45:23,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:45:23,253 INFO L429 AbstractCegarLoop]: === Iteration 5 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:45:23,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:45:23,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1928627514, now seen corresponding path program 1 times [2020-12-09 04:45:23,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:45:23,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997714358] [2020-12-09 04:45:23,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:45:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:45:23,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:45:23,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997714358] [2020-12-09 04:45:23,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:45:23,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 04:45:23,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773712318] [2020-12-09 04:45:23,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 04:45:23,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:45:23,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 04:45:23,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 04:45:23,374 INFO L87 Difference]: Start difference. First operand 904 states and 2416 transitions. Second operand 3 states. [2020-12-09 04:45:23,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:45:23,410 INFO L93 Difference]: Finished difference Result 439 states and 991 transitions. [2020-12-09 04:45:23,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 04:45:23,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-12-09 04:45:23,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:45:23,417 INFO L225 Difference]: With dead ends: 439 [2020-12-09 04:45:23,417 INFO L226 Difference]: Without dead ends: 435 [2020-12-09 04:45:23,417 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 [2020-12-09 04:45:23,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-12-09 04:45:23,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 403. [2020-12-09 04:45:23,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 403 states. [2020-12-09 04:45:23,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 899 transitions. [2020-12-09 04:45:23,434 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 899 transitions. Word has length 16 [2020-12-09 04:45:23,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:45:23,435 INFO L481 AbstractCegarLoop]: Abstraction has 403 states and 899 transitions. [2020-12-09 04:45:23,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 04:45:23,435 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 899 transitions. [2020-12-09 04:45:23,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-09 04:45:23,436 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:45:23,436 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:45:23,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 04:45:23,436 INFO L429 AbstractCegarLoop]: === Iteration 6 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:45:23,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:45:23,437 INFO L82 PathProgramCache]: Analyzing trace with hash 362633340, now seen corresponding path program 1 times [2020-12-09 04:45:23,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:45:23,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530001067] [2020-12-09 04:45:23,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:45:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:45:23,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:45:23,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530001067] [2020-12-09 04:45:23,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:45:23,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 04:45:23,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809985662] [2020-12-09 04:45:23,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 04:45:23,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:45:23,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 04:45:23,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 04:45:23,481 INFO L87 Difference]: Start difference. First operand 403 states and 899 transitions. Second operand 5 states. [2020-12-09 04:45:23,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:45:23,531 INFO L93 Difference]: Finished difference Result 563 states and 1255 transitions. [2020-12-09 04:45:23,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 04:45:23,532 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-12-09 04:45:23,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:45:23,534 INFO L225 Difference]: With dead ends: 563 [2020-12-09 04:45:23,534 INFO L226 Difference]: Without dead ends: 563 [2020-12-09 04:45:23,535 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 [2020-12-09 04:45:23,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2020-12-09 04:45:23,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 441. [2020-12-09 04:45:23,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-12-09 04:45:23,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 990 transitions. [2020-12-09 04:45:23,544 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 990 transitions. Word has length 17 [2020-12-09 04:45:23,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:45:23,544 INFO L481 AbstractCegarLoop]: Abstraction has 441 states and 990 transitions. [2020-12-09 04:45:23,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 04:45:23,545 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 990 transitions. [2020-12-09 04:45:23,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 04:45:23,545 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:45:23,545 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] [2020-12-09 04:45:23,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 04:45:23,545 INFO L429 AbstractCegarLoop]: === Iteration 7 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:45:23,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:45:23,546 INFO L82 PathProgramCache]: Analyzing trace with hash -666728328, now seen corresponding path program 1 times [2020-12-09 04:45:23,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:45:23,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195713458] [2020-12-09 04:45:23,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:45:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:45:23,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:45:23,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195713458] [2020-12-09 04:45:23,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:45:23,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-09 04:45:23,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740292642] [2020-12-09 04:45:23,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-09 04:45:23,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:45:23,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-09 04:45:23,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-12-09 04:45:23,794 INFO L87 Difference]: Start difference. First operand 441 states and 990 transitions. Second operand 11 states. [2020-12-09 04:45:24,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:45:24,171 INFO L93 Difference]: Finished difference Result 741 states and 1649 transitions. [2020-12-09 04:45:24,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 04:45:24,172 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-12-09 04:45:24,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:45:24,175 INFO L225 Difference]: With dead ends: 741 [2020-12-09 04:45:24,175 INFO L226 Difference]: Without dead ends: 741 [2020-12-09 04:45:24,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-12-09 04:45:24,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2020-12-09 04:45:24,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 574. [2020-12-09 04:45:24,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2020-12-09 04:45:24,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 1328 transitions. [2020-12-09 04:45:24,189 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 1328 transitions. Word has length 21 [2020-12-09 04:45:24,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:45:24,189 INFO L481 AbstractCegarLoop]: Abstraction has 574 states and 1328 transitions. [2020-12-09 04:45:24,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-09 04:45:24,189 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 1328 transitions. [2020-12-09 04:45:24,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 04:45:24,190 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:45:24,190 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] [2020-12-09 04:45:24,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-09 04:45:24,190 INFO L429 AbstractCegarLoop]: === Iteration 8 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:45:24,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:45:24,191 INFO L82 PathProgramCache]: Analyzing trace with hash 553715192, now seen corresponding path program 2 times [2020-12-09 04:45:24,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:45:24,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403033947] [2020-12-09 04:45:24,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:45:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:45:24,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:45:24,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403033947] [2020-12-09 04:45:24,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:45:24,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-09 04:45:24,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304634864] [2020-12-09 04:45:24,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-09 04:45:24,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:45:24,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-09 04:45:24,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2020-12-09 04:45:24,455 INFO L87 Difference]: Start difference. First operand 574 states and 1328 transitions. Second operand 11 states. [2020-12-09 04:45:24,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:45:24,868 INFO L93 Difference]: Finished difference Result 861 states and 1950 transitions. [2020-12-09 04:45:24,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 04:45:24,868 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-12-09 04:45:24,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:45:24,873 INFO L225 Difference]: With dead ends: 861 [2020-12-09 04:45:24,874 INFO L226 Difference]: Without dead ends: 861 [2020-12-09 04:45:24,874 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-12-09 04:45:24,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2020-12-09 04:45:24,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 560. [2020-12-09 04:45:24,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-12-09 04:45:24,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 1291 transitions. [2020-12-09 04:45:24,892 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 1291 transitions. Word has length 21 [2020-12-09 04:45:24,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:45:24,893 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 1291 transitions. [2020-12-09 04:45:24,893 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-09 04:45:24,893 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 1291 transitions. [2020-12-09 04:45:24,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-09 04:45:24,894 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:45:24,894 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] [2020-12-09 04:45:24,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-09 04:45:24,895 INFO L429 AbstractCegarLoop]: === Iteration 9 === [t2Err0ASSERT_VIOLATIONERROR_FUNCTION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:45:24,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:45:24,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1721594630, now seen corresponding path program 1 times [2020-12-09 04:45:24,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:45:24,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988851986] [2020-12-09 04:45:24,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:45:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 04:45:24,920 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 04:45:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 04:45:24,954 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 04:45:24,972 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 04:45:24,973 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 04:45:24,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-09 04:45:25,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:45:25 BasicIcfg [2020-12-09 04:45:25,014 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 04:45:25,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 04:45:25,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 04:45:25,014 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 04:45:25,015 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:45:15" (3/4) ... [2020-12-09 04:45:25,016 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 04:45:25,070 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_886938d0-f38f-483f-bf86-24e3df17cc3a/bin/utaipan/witness.graphml [2020-12-09 04:45:25,070 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 04:45:25,071 INFO L168 Benchmark]: Toolchain (without parser) took 10675.02 ms. Allocated memory was 96.5 MB in the beginning and 207.6 MB in the end (delta: 111.1 MB). Free memory was 72.7 MB in the beginning and 169.2 MB in the end (delta: -96.5 MB). Peak memory consumption was 103.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:45:25,071 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 69.2 MB. Free memory was 44.2 MB in the beginning and 44.1 MB in the end (delta: 67.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:45:25,072 INFO L168 Benchmark]: CACSL2BoogieTranslator took 510.32 ms. Allocated memory is still 96.5 MB. Free memory was 72.7 MB in the beginning and 40.7 MB in the end (delta: 32.0 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:45:25,072 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.57 ms. Allocated memory is still 96.5 MB. Free memory was 40.7 MB in the beginning and 37.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:45:25,073 INFO L168 Benchmark]: Boogie Preprocessor took 30.09 ms. Allocated memory is still 96.5 MB. Free memory was 37.9 MB in the beginning and 36.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:45:25,073 INFO L168 Benchmark]: RCFGBuilder took 411.64 ms. Allocated memory is still 96.5 MB. Free memory was 36.0 MB in the beginning and 42.3 MB in the end (delta: -6.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:45:25,073 INFO L168 Benchmark]: TraceAbstraction took 9615.49 ms. Allocated memory was 96.5 MB in the beginning and 172.0 MB in the end (delta: 75.5 MB). Free memory was 41.7 MB in the beginning and 47.7 MB in the end (delta: -6.0 MB). Peak memory consumption was 71.8 MB. Max. memory is 16.1 GB. [2020-12-09 04:45:25,074 INFO L168 Benchmark]: Witness Printer took 56.07 ms. Allocated memory was 172.0 MB in the beginning and 207.6 MB in the end (delta: 35.7 MB). Free memory was 47.7 MB in the beginning and 169.2 MB in the end (delta: -121.5 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-12-09 04:45:25,076 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 69.2 MB. Free memory was 44.2 MB in the beginning and 44.1 MB in the end (delta: 67.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 510.32 ms. Allocated memory is still 96.5 MB. Free memory was 72.7 MB in the beginning and 40.7 MB in the end (delta: 32.0 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.57 ms. Allocated memory is still 96.5 MB. Free memory was 40.7 MB in the beginning and 37.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.09 ms. Allocated memory is still 96.5 MB. Free memory was 37.9 MB in the beginning and 36.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 411.64 ms. Allocated memory is still 96.5 MB. Free memory was 36.0 MB in the beginning and 42.3 MB in the end (delta: -6.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9615.49 ms. Allocated memory was 96.5 MB in the beginning and 172.0 MB in the end (delta: 75.5 MB). Free memory was 41.7 MB in the beginning and 47.7 MB in the end (delta: -6.0 MB). Peak memory consumption was 71.8 MB. Max. memory is 16.1 GB. * Witness Printer took 56.07 ms. Allocated memory was 172.0 MB in the beginning and 207.6 MB in the end (delta: 35.7 MB). Free memory was 47.7 MB in the beginning and 169.2 MB in the end (delta: -121.5 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 4908 VarBasedMoverChecksPositive, 89 VarBasedMoverChecksNegative, 27 SemBasedMoverChecksPositive, 62 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 354 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 6.6s, 146 PlacesBefore, 40 PlacesAfterwards, 151 TransitionsBefore, 41 TransitionsAfterwards, 6764 CoEnabledTransitionPairs, 5 FixpointIterations, 30 TrivialSequentialCompositions, 83 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 4 ChoiceCompositions, 136 TotalNumberOfCompositions, 10318 MoverChecksTotal - CounterExampleResult [Line: 941]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L935] 0 static int top=0; [L936] 0 static unsigned int arr[(800)]; [L937] 0 pthread_mutex_t m; [L938] 0 _Bool flag=(0); [L1020] 0 pthread_t id1, id2; [L1022] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [arr={7:0}, flag=0, m={11:0}, top=0] [L989] 1 int i; [L990] 1 unsigned int tmp; [L991] 1 i=0 VAL [arr={7:0}, flag=0, m={11:0}, top=0] [L1023] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [arr={7:0}, flag=0, m={11:0}, top=0] [L991] COND TRUE 1 i<(800) [L994] 1 tmp = __VERIFIER_nondet_uint() [L23] COND FALSE 1 !(!cond) [L961] COND FALSE 1 !(top==(800)) [L953] 1 return top; [L968] 1 stack[get_top()] = x [L945] 1 top++ [L971] 1 return 0; [L996] COND FALSE 1 !(push(arr,tmp)==(-1)) [L998] 1 flag=(1) VAL [arr={7:0}, flag=1, m={11:0}, top=1] [L991] 1 i++ VAL [arr={7:0}, flag=1, m={11:0}, top=1] [L1005] 2 int i; [L1006] 2 i=0 VAL [arr={7:0}, flag=1, m={11:0}, top=1] [L1006] COND TRUE 2 i<(800) [L1009] COND TRUE 2 \read(flag) [L953] 2 return top; [L975] COND FALSE 2 !(get_top()==0) [L949] 2 top-- VAL [arr={7:0}, flag=1, m={11:0}, top=0] [L953] 2 return top; [L983] EXPR 2 stack[get_top()] [L983] 2 return stack[get_top()]; [L1011] COND FALSE 2 !(!(pop(arr)!=(-2))) [L1006] 2 i++ VAL [arr={7:0}, flag=1, m={11:0}, top=0] [L1006] COND TRUE 2 i<(800) [L1009] COND TRUE 2 \read(flag) [L953] 2 return top; [L975] COND TRUE 2 get_top()==0 [L978] 2 return (-2); [L1011] COND TRUE 2 !(pop(arr)!=(-2)) [L941] 2 reach_error() VAL [arr={7:0}, flag=1, m={11:0}, top=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 140 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.4s, OverallIterations: 9, TraceHistogramMax: 2, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 358 SDtfs, 483 SDslu, 945 SDs, 0 SdLazy, 642 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.6s 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 1161 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 131 ConstructedInterpolants, 0 QuantifiedInterpolants, 29061 SizeOfPredicates, 1 NumberOfNonLiveVariables, 159 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 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...