./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/lazy01.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_44380c6f-16e7-4709-9a96-15547f59a38d/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_44380c6f-16e7-4709-9a96-15547f59a38d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_44380c6f-16e7-4709-9a96-15547f59a38d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_44380c6f-16e7-4709-9a96-15547f59a38d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/lazy01.i -s /tmp/vcloud-vcloud-master/worker/run_dir_44380c6f-16e7-4709-9a96-15547f59a38d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_44380c6f-16e7-4709-9a96-15547f59a38d/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 4de3a2ca09971f3eb45edfe4b976415f8e15d63f ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:24:28,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:24:28,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:24:28,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:24:28,627 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:24:28,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:24:28,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:24:28,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:24:28,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:24:28,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:24:28,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:24:28,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:24:28,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:24:28,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:24:28,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:24:28,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:24:28,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:24:28,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:24:28,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:24:28,657 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:24:28,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:24:28,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:24:28,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:24:28,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:24:28,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:24:28,670 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:24:28,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:24:28,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:24:28,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:24:28,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:24:28,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:24:28,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:24:28,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:24:28,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:24:28,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:24:28,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:24:28,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:24:28,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:24:28,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:24:28,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:24:28,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:24:28,687 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_44380c6f-16e7-4709-9a96-15547f59a38d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 02:24:28,718 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:24:28,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:24:28,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:24:28,720 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:24:28,721 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:24:28,721 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:24:28,721 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:24:28,722 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:24:28,722 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:24:28,723 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:24:28,723 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:24:28,724 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:24:28,724 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:24:28,725 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:24:28,725 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:24:28,726 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:24:28,727 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:24:28,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:24:28,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:24:28,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:24:28,728 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:24:28,728 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:24:28,728 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:24:28,729 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:24:28,729 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:24:28,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:24:28,729 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:24:28,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:24:28,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:24:28,730 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:24:28,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:24:28,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:24:28,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:24:28,732 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:24:28,732 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:24:28,732 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:24:28,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:24:28,733 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:24:28,733 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:24:28,733 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:24:28,734 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_44380c6f-16e7-4709-9a96-15547f59a38d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_44380c6f-16e7-4709-9a96-15547f59a38d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4de3a2ca09971f3eb45edfe4b976415f8e15d63f [2020-11-30 02:24:29,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:24:29,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:24:29,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:24:29,091 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:24:29,092 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:24:29,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_44380c6f-16e7-4709-9a96-15547f59a38d/bin/utaipan/../../sv-benchmarks/c/pthread/lazy01.i [2020-11-30 02:24:29,197 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_44380c6f-16e7-4709-9a96-15547f59a38d/bin/utaipan/data/f94b7d79b/b31f470497a94acdae96b13b50333fea/FLAG247812c0a [2020-11-30 02:24:29,915 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:24:29,921 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_44380c6f-16e7-4709-9a96-15547f59a38d/sv-benchmarks/c/pthread/lazy01.i [2020-11-30 02:24:29,952 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_44380c6f-16e7-4709-9a96-15547f59a38d/bin/utaipan/data/f94b7d79b/b31f470497a94acdae96b13b50333fea/FLAG247812c0a [2020-11-30 02:24:30,103 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_44380c6f-16e7-4709-9a96-15547f59a38d/bin/utaipan/data/f94b7d79b/b31f470497a94acdae96b13b50333fea [2020-11-30 02:24:30,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:24:30,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:24:30,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:24:30,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:24:30,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:24:30,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:24:30" (1/1) ... [2020-11-30 02:24:30,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21e5ad3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:30, skipping insertion in model container [2020-11-30 02:24:30,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:24:30" (1/1) ... [2020-11-30 02:24:30,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:24:30,213 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:24:30,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:24:30,807 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:24:30,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:24:30,961 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:24:30,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:30 WrapperNode [2020-11-30 02:24:30,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:24:30,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:24:30,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:24:30,964 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:24:30,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:30" (1/1) ... [2020-11-30 02:24:31,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:30" (1/1) ... [2020-11-30 02:24:31,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:24:31,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:24:31,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:24:31,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:24:31,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:30" (1/1) ... [2020-11-30 02:24:31,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:30" (1/1) ... [2020-11-30 02:24:31,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:30" (1/1) ... [2020-11-30 02:24:31,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:30" (1/1) ... [2020-11-30 02:24:31,076 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:30" (1/1) ... [2020-11-30 02:24:31,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:30" (1/1) ... [2020-11-30 02:24:31,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:30" (1/1) ... [2020-11-30 02:24:31,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:24:31,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:24:31,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:24:31,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:24:31,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44380c6f-16e7-4709-9a96-15547f59a38d/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:24:31,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 02:24:31,187 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-11-30 02:24:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-11-30 02:24:31,187 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-11-30 02:24:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-11-30 02:24:31,188 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-11-30 02:24:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-11-30 02:24:31,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 02:24:31,190 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-30 02:24:31,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:24:31,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 02:24:31,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 02:24:31,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:24:31,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:24:31,194 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-30 02:24:31,824 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:24:31,824 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-30 02:24:31,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:24:31 BoogieIcfgContainer [2020-11-30 02:24:31,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:24:31,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:24:31,828 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:24:31,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:24:31,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:24:30" (1/3) ... [2020-11-30 02:24:31,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e7a019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:24:31, skipping insertion in model container [2020-11-30 02:24:31,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:24:30" (2/3) ... [2020-11-30 02:24:31,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e7a019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:24:31, skipping insertion in model container [2020-11-30 02:24:31,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:24:31" (3/3) ... [2020-11-30 02:24:31,835 INFO L111 eAbstractionObserver]: Analyzing ICFG lazy01.i [2020-11-30 02:24:31,848 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-30 02:24:31,848 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:24:31,853 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:24:31,854 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-30 02:24:31,886 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,886 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,886 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,886 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,887 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,887 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,887 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,888 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,888 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,889 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,889 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,890 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,890 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,890 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,890 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,890 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,891 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,891 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,891 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,892 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,893 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,893 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,893 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,893 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,894 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,894 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,894 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,894 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,895 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,895 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,897 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,898 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,898 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,898 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,898 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,903 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,904 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,904 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,904 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,904 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,905 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,905 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,911 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,911 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,912 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,912 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,912 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,912 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 02:24:31,930 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2020-11-30 02:24:31,943 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-30 02:24:31,967 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:24:31,967 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:24:31,968 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:24:31,968 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:24:31,968 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:24:31,968 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:24:31,968 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:24:31,968 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:24:31,982 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-30 02:24:31,984 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 87 transitions, 216 flow [2020-11-30 02:24:31,988 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 87 transitions, 216 flow [2020-11-30 02:24:31,990 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 89 places, 87 transitions, 216 flow [2020-11-30 02:24:32,051 INFO L129 PetriNetUnfolder]: 7/95 cut-off events. [2020-11-30 02:24:32,051 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-11-30 02:24:32,057 INFO L80 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 95 events. 7/95 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 150 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 57. Up to 6 conditions per place. [2020-11-30 02:24:32,062 INFO L116 LiptonReduction]: Number of co-enabled transitions 1376 [2020-11-30 02:24:33,847 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-11-30 02:24:35,035 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-11-30 02:24:35,740 WARN L193 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2020-11-30 02:24:36,098 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-11-30 02:24:36,189 INFO L131 LiptonReduction]: Checked pairs total: 6004 [2020-11-30 02:24:36,189 INFO L133 LiptonReduction]: Total number of compositions: 63 [2020-11-30 02:24:36,198 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 37 transitions, 116 flow [2020-11-30 02:24:36,268 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 492 states. [2020-11-30 02:24:36,272 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states. [2020-11-30 02:24:36,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 02:24:36,283 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:24:36,283 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:24:36,284 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:24:36,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:24:36,298 INFO L82 PathProgramCache]: Analyzing trace with hash 588869376, now seen corresponding path program 1 times [2020-11-30 02:24:36,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:24:36,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568610358] [2020-11-30 02:24:36,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:24:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:24:36,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:24:36,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568610358] [2020-11-30 02:24:36,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:24:36,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 02:24:36,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938371329] [2020-11-30 02:24:36,718 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:24:36,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:24:36,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:24:36,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:24:36,750 INFO L87 Difference]: Start difference. First operand 492 states. Second operand 3 states. [2020-11-30 02:24:36,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:24:36,853 INFO L93 Difference]: Finished difference Result 480 states and 1245 transitions. [2020-11-30 02:24:36,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:24:36,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-11-30 02:24:36,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:24:36,880 INFO L225 Difference]: With dead ends: 480 [2020-11-30 02:24:36,881 INFO L226 Difference]: Without dead ends: 250 [2020-11-30 02:24:36,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:24:36,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-11-30 02:24:36,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2020-11-30 02:24:36,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-11-30 02:24:36,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 622 transitions. [2020-11-30 02:24:36,984 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 622 transitions. Word has length 8 [2020-11-30 02:24:36,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:24:36,985 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 622 transitions. [2020-11-30 02:24:36,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:24:36,985 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 622 transitions. [2020-11-30 02:24:36,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 02:24:36,989 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:24:36,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:24:36,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 02:24:36,990 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:24:36,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:24:36,994 INFO L82 PathProgramCache]: Analyzing trace with hash -1152860627, now seen corresponding path program 1 times [2020-11-30 02:24:36,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:24:36,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269897621] [2020-11-30 02:24:36,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:24:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:24:37,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:24:37,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269897621] [2020-11-30 02:24:37,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:24:37,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 02:24:37,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920381] [2020-11-30 02:24:37,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 02:24:37,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:24:37,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 02:24:37,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:24:37,102 INFO L87 Difference]: Start difference. First operand 250 states and 622 transitions. Second operand 3 states. [2020-11-30 02:24:37,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:24:37,143 INFO L93 Difference]: Finished difference Result 142 states and 253 transitions. [2020-11-30 02:24:37,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 02:24:37,144 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-30 02:24:37,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:24:37,146 INFO L225 Difference]: With dead ends: 142 [2020-11-30 02:24:37,146 INFO L226 Difference]: Without dead ends: 140 [2020-11-30 02:24:37,147 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 02:24:37,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-11-30 02:24:37,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-11-30 02:24:37,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-11-30 02:24:37,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 250 transitions. [2020-11-30 02:24:37,163 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 250 transitions. Word has length 10 [2020-11-30 02:24:37,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:24:37,164 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 250 transitions. [2020-11-30 02:24:37,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 02:24:37,164 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 250 transitions. [2020-11-30 02:24:37,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 02:24:37,166 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:24:37,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:24:37,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 02:24:37,167 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:24:37,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:24:37,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1378923444, now seen corresponding path program 1 times [2020-11-30 02:24:37,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:24:37,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977001779] [2020-11-30 02:24:37,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:24:37,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:24:37,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:24:37,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977001779] [2020-11-30 02:24:37,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:24:37,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 02:24:37,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291879882] [2020-11-30 02:24:37,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 02:24:37,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:24:37,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 02:24:37,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:24:37,280 INFO L87 Difference]: Start difference. First operand 140 states and 250 transitions. Second operand 4 states. [2020-11-30 02:24:37,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:24:37,306 INFO L93 Difference]: Finished difference Result 135 states and 241 transitions. [2020-11-30 02:24:37,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:24:37,308 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-30 02:24:37,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:24:37,310 INFO L225 Difference]: With dead ends: 135 [2020-11-30 02:24:37,310 INFO L226 Difference]: Without dead ends: 130 [2020-11-30 02:24:37,310 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 02:24:37,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-11-30 02:24:37,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-11-30 02:24:37,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-11-30 02:24:37,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 232 transitions. [2020-11-30 02:24:37,320 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 232 transitions. Word has length 11 [2020-11-30 02:24:37,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:24:37,321 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 232 transitions. [2020-11-30 02:24:37,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 02:24:37,321 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 232 transitions. [2020-11-30 02:24:37,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 02:24:37,322 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:24:37,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:24:37,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 02:24:37,323 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:24:37,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:24:37,324 INFO L82 PathProgramCache]: Analyzing trace with hash 768940541, now seen corresponding path program 1 times [2020-11-30 02:24:37,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:24:37,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305451326] [2020-11-30 02:24:37,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:24:37,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:24:37,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:24:37,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305451326] [2020-11-30 02:24:37,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:24:37,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 02:24:37,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669095744] [2020-11-30 02:24:37,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 02:24:37,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:24:37,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 02:24:37,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 02:24:37,420 INFO L87 Difference]: Start difference. First operand 130 states and 232 transitions. Second operand 5 states. [2020-11-30 02:24:37,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:24:37,480 INFO L93 Difference]: Finished difference Result 125 states and 223 transitions. [2020-11-30 02:24:37,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 02:24:37,481 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-11-30 02:24:37,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:24:37,485 INFO L225 Difference]: With dead ends: 125 [2020-11-30 02:24:37,485 INFO L226 Difference]: Without dead ends: 120 [2020-11-30 02:24:37,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 02:24:37,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-11-30 02:24:37,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-11-30 02:24:37,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-11-30 02:24:37,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 214 transitions. [2020-11-30 02:24:37,498 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 214 transitions. Word has length 12 [2020-11-30 02:24:37,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:24:37,498 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 214 transitions. [2020-11-30 02:24:37,499 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 02:24:37,499 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 214 transitions. [2020-11-30 02:24:37,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 02:24:37,500 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:24:37,500 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:24:37,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 02:24:37,501 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:24:37,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:24:37,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1926839561, now seen corresponding path program 1 times [2020-11-30 02:24:37,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:24:37,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664703329] [2020-11-30 02:24:37,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:24:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:24:37,551 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:24:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:24:37,579 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:24:37,608 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 02:24:37,609 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 02:24:37,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 02:24:37,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:24:37 BasicIcfg [2020-11-30 02:24:37,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:24:37,656 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:24:37,656 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:24:37,656 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:24:37,657 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:24:31" (3/4) ... [2020-11-30 02:24:37,659 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 02:24:37,750 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_44380c6f-16e7-4709-9a96-15547f59a38d/bin/utaipan/witness.graphml [2020-11-30 02:24:37,750 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:24:37,752 INFO L168 Benchmark]: Toolchain (without parser) took 7641.79 ms. Allocated memory was 111.1 MB in the beginning and 167.8 MB in the end (delta: 56.6 MB). Free memory was 82.5 MB in the beginning and 70.3 MB in the end (delta: 12.3 MB). Peak memory consumption was 69.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:24:37,752 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory was 42.4 MB in the beginning and 42.4 MB in the end (delta: 42.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:24:37,753 INFO L168 Benchmark]: CACSL2BoogieTranslator took 849.86 ms. Allocated memory is still 111.1 MB. Free memory was 82.3 MB in the beginning and 69.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 02:24:37,754 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.92 ms. Allocated memory is still 111.1 MB. Free memory was 69.0 MB in the beginning and 66.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:24:37,754 INFO L168 Benchmark]: Boogie Preprocessor took 30.77 ms. Allocated memory is still 111.1 MB. Free memory was 66.9 MB in the beginning and 65.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:24:37,755 INFO L168 Benchmark]: RCFGBuilder took 739.67 ms. Allocated memory is still 111.1 MB. Free memory was 65.7 MB in the beginning and 77.0 MB in the end (delta: -11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 02:24:37,756 INFO L168 Benchmark]: TraceAbstraction took 5827.64 ms. Allocated memory was 111.1 MB in the beginning and 167.8 MB in the end (delta: 56.6 MB). Free memory was 76.4 MB in the beginning and 74.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 60.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:24:37,756 INFO L168 Benchmark]: Witness Printer took 94.39 ms. Allocated memory is still 167.8 MB. Free memory was 74.5 MB in the beginning and 70.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:24:37,765 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory was 42.4 MB in the beginning and 42.4 MB in the end (delta: 42.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 849.86 ms. Allocated memory is still 111.1 MB. Free memory was 82.3 MB in the beginning and 69.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.92 ms. Allocated memory is still 111.1 MB. Free memory was 69.0 MB in the beginning and 66.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.77 ms. Allocated memory is still 111.1 MB. Free memory was 66.9 MB in the beginning and 65.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 739.67 ms. Allocated memory is still 111.1 MB. Free memory was 65.7 MB in the beginning and 77.0 MB in the end (delta: -11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5827.64 ms. Allocated memory was 111.1 MB in the beginning and 167.8 MB in the end (delta: 56.6 MB). Free memory was 76.4 MB in the beginning and 74.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 60.2 MB. Max. memory is 16.1 GB. * Witness Printer took 94.39 ms. Allocated memory is still 167.8 MB. Free memory was 74.5 MB in the beginning and 70.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1098 VarBasedMoverChecksPositive, 69 VarBasedMoverChecksNegative, 38 SemBasedMoverChecksPositive, 31 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 261 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.2s, 89 PlacesBefore, 40 PlacesAfterwards, 87 TransitionsBefore, 37 TransitionsAfterwards, 1376 CoEnabledTransitionPairs, 6 FixpointIterations, 28 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 63 TotalNumberOfCompositions, 6004 MoverChecksTotal - CounterExampleResult [Line: 20]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L702] 0 pthread_mutex_t mutex; [L703] 0 int data = 0; [L731] 0 pthread_t t1, t2, t3; [L732] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={10:0}] [L733] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data=0, mutex={10:0}] [L714] 2 data+=2 VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=2, mutex={10:0}] [L734] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=2, mutex={10:0}] [L716] 2 return 0; [L707] 1 data++ VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={10:0}] [L709] 1 return 0; [L721] COND TRUE 3 data >= 3 [L20] COND FALSE 3 !(0) [L20] 3 __assert_fail ("0", "lazy01.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={10:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 117 SDtfs, 59 SDslu, 135 SDs, 0 SdLazy, 37 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=492occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 1107 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...