./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stateful01-1.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_9ac15306-b3c8-4707-8367-288eb077c943/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9ac15306-b3c8-4707-8367-288eb077c943/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9ac15306-b3c8-4707-8367-288eb077c943/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9ac15306-b3c8-4707-8367-288eb077c943/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stateful01-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9ac15306-b3c8-4707-8367-288eb077c943/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9ac15306-b3c8-4707-8367-288eb077c943/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7a6b87fc48455dc53e38f1c353a311cdcd826300 ......................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:01:59,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:01:59,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:01:59,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:01:59,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:01:59,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:01:59,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:01:59,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:01:59,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:01:59,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:01:59,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:01:59,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:01:59,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:01:59,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:01:59,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:01:59,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:01:59,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:01:59,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:01:59,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:01:59,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:01:59,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:01:59,897 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:01:59,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:01:59,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:01:59,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:01:59,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:01:59,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:01:59,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:01:59,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:01:59,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:01:59,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:01:59,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:01:59,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:01:59,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:01:59,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:01:59,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:01:59,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:01:59,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:01:59,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:01:59,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:01:59,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:01:59,927 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9ac15306-b3c8-4707-8367-288eb077c943/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:01:59,961 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:01:59,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:01:59,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:01:59,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:01:59,963 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:01:59,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:01:59,964 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:01:59,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:01:59,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:01:59,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:01:59,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:01:59,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:01:59,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:01:59,965 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:01:59,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:01:59,966 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:01:59,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:01:59,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:01:59,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:01:59,966 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:01:59,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:01:59,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:01:59,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:01:59,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:01:59,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:01:59,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:01:59,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:01:59,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:01:59,968 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:01:59,969 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_9ac15306-b3c8-4707-8367-288eb077c943/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9ac15306-b3c8-4707-8367-288eb077c943/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a6b87fc48455dc53e38f1c353a311cdcd826300 [2020-11-30 01:02:00,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:02:00,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:02:00,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:02:00,270 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:02:00,283 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:02:00,284 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9ac15306-b3c8-4707-8367-288eb077c943/bin/uautomizer/../../sv-benchmarks/c/pthread/stateful01-1.i [2020-11-30 01:02:00,385 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ac15306-b3c8-4707-8367-288eb077c943/bin/uautomizer/data/73fc58be5/9ab91c2227274343a48a568026d1aaec/FLAGd782a288f [2020-11-30 01:02:00,890 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:02:00,890 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9ac15306-b3c8-4707-8367-288eb077c943/sv-benchmarks/c/pthread/stateful01-1.i [2020-11-30 01:02:00,921 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9ac15306-b3c8-4707-8367-288eb077c943/bin/uautomizer/data/73fc58be5/9ab91c2227274343a48a568026d1aaec/FLAGd782a288f [2020-11-30 01:02:01,211 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9ac15306-b3c8-4707-8367-288eb077c943/bin/uautomizer/data/73fc58be5/9ab91c2227274343a48a568026d1aaec [2020-11-30 01:02:01,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:02:01,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:02:01,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:01,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:02:01,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:02:01,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:01,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2343e889 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01, skipping insertion in model container [2020-11-30 01:02:01,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:01,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:02:01,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:02:01,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:01,642 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:02:01,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:01,789 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:02:01,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01 WrapperNode [2020-11-30 01:02:01,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:01,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:02:01,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:02:01,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:02:01,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:01,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:01,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:02:01,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:02:01,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:02:01,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:02:01,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:01,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:01,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:01,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:01,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:01,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:01,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... [2020-11-30 01:02:01,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:02:01,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:02:01,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:02:01,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:02:01,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9ac15306-b3c8-4707-8367-288eb077c943/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:02:01,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:02:01,989 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-11-30 01:02:01,989 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-11-30 01:02:01,990 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-11-30 01:02:01,990 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-11-30 01:02:01,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:02:01,990 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-30 01:02:01,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:02:01,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:02:01,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:02:01,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:02:01,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:02:01,993 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-30 01:02:02,433 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:02:02,433 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-30 01:02:02,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:02 BoogieIcfgContainer [2020-11-30 01:02:02,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:02:02,437 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:02:02,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:02:02,440 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:02:02,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:02:01" (1/3) ... [2020-11-30 01:02:02,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65937c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:02:02, skipping insertion in model container [2020-11-30 01:02:02,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:01" (2/3) ... [2020-11-30 01:02:02,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65937c30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:02:02, skipping insertion in model container [2020-11-30 01:02:02,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:02" (3/3) ... [2020-11-30 01:02:02,443 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2020-11-30 01:02:02,454 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-30 01:02:02,454 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:02:02,459 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:02:02,460 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-30 01:02:02,487 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,487 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,487 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,487 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,488 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,488 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,488 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,488 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,489 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,489 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,489 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,489 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,490 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,490 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,490 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,490 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,491 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,491 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,491 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,491 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,491 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,492 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,492 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,492 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,492 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,493 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,495 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,495 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,495 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,495 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,496 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,496 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,496 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,496 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,501 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,501 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,501 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,501 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,502 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,502 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-30 01:02:02,519 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-11-30 01:02:02,530 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-30 01:02:02,551 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:02:02,551 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:02:02,551 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:02:02,551 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:02:02,552 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:02:02,552 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:02:02,552 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:02:02,552 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:02:02,564 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-30 01:02:02,566 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 87 transitions, 196 flow [2020-11-30 01:02:02,569 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 87 transitions, 196 flow [2020-11-30 01:02:02,571 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 90 places, 87 transitions, 196 flow [2020-11-30 01:02:02,625 INFO L129 PetriNetUnfolder]: 3/87 cut-off events. [2020-11-30 01:02:02,626 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-11-30 01:02:02,628 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 87 events. 3/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 32. Up to 3 conditions per place. [2020-11-30 01:02:02,631 INFO L116 LiptonReduction]: Number of co-enabled transitions 680 [2020-11-30 01:02:04,728 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-11-30 01:02:05,137 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 97 [2020-11-30 01:02:05,322 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-30 01:02:06,067 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2020-11-30 01:02:06,318 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-11-30 01:02:06,333 INFO L131 LiptonReduction]: Checked pairs total: 3315 [2020-11-30 01:02:06,333 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-11-30 01:02:06,338 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 30 transitions, 82 flow [2020-11-30 01:02:06,357 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 198 states. [2020-11-30 01:02:06,359 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2020-11-30 01:02:06,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-30 01:02:06,368 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:06,369 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, 1, 1, 1, 1] [2020-11-30 01:02:06,369 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:06,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:06,375 INFO L82 PathProgramCache]: Analyzing trace with hash -122239032, now seen corresponding path program 1 times [2020-11-30 01:02:06,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:06,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758908360] [2020-11-30 01:02:06,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:06,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:06,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758908360] [2020-11-30 01:02:06,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:06,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 01:02:06,746 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247900374] [2020-11-30 01:02:06,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:02:06,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:06,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:02:06,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:02:06,767 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 5 states. [2020-11-30 01:02:06,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:06,842 INFO L93 Difference]: Finished difference Result 198 states and 413 transitions. [2020-11-30 01:02:06,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:02:06,844 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-30 01:02:06,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:06,856 INFO L225 Difference]: With dead ends: 198 [2020-11-30 01:02:06,857 INFO L226 Difference]: Without dead ends: 170 [2020-11-30 01:02:06,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:02:06,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-11-30 01:02:06,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-11-30 01:02:06,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-11-30 01:02:06,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 361 transitions. [2020-11-30 01:02:06,934 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 361 transitions. Word has length 25 [2020-11-30 01:02:06,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:06,935 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 361 transitions. [2020-11-30 01:02:06,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:02:06,935 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 361 transitions. [2020-11-30 01:02:06,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-30 01:02:06,939 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:06,940 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, 1, 1, 1, 1] [2020-11-30 01:02:06,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:02:06,940 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:06,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:06,941 INFO L82 PathProgramCache]: Analyzing trace with hash -150867222, now seen corresponding path program 1 times [2020-11-30 01:02:06,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:06,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853285369] [2020-11-30 01:02:06,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:07,021 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:07,081 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:07,110 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:02:07,110 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:02:07,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:02:07,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:02:07 BasicIcfg [2020-11-30 01:02:07,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:02:07,192 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:02:07,192 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:02:07,192 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:02:07,193 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:02" (3/4) ... [2020-11-30 01:02:07,195 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:02:07,271 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9ac15306-b3c8-4707-8367-288eb077c943/bin/uautomizer/witness.graphml [2020-11-30 01:02:07,271 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:02:07,273 INFO L168 Benchmark]: Toolchain (without parser) took 6058.17 ms. Allocated memory was 94.4 MB in the beginning and 142.6 MB in the end (delta: 48.2 MB). Free memory was 60.5 MB in the beginning and 110.2 MB in the end (delta: -49.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:02:07,273 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 77.6 MB. Free memory was 59.0 MB in the beginning and 58.9 MB in the end (delta: 29.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:02:07,274 INFO L168 Benchmark]: CACSL2BoogieTranslator took 575.28 ms. Allocated memory is still 94.4 MB. Free memory was 60.1 MB in the beginning and 53.8 MB in the end (delta: 6.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:07,274 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.88 ms. Allocated memory is still 94.4 MB. Free memory was 53.8 MB in the beginning and 52.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:07,275 INFO L168 Benchmark]: Boogie Preprocessor took 42.36 ms. Allocated memory is still 94.4 MB. Free memory was 51.6 MB in the beginning and 50.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:02:07,276 INFO L168 Benchmark]: RCFGBuilder took 524.98 ms. Allocated memory is still 94.4 MB. Free memory was 50.4 MB in the beginning and 58.7 MB in the end (delta: -8.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:07,276 INFO L168 Benchmark]: TraceAbstraction took 4754.75 ms. Allocated memory was 94.4 MB in the beginning and 142.6 MB in the end (delta: 48.2 MB). Free memory was 58.2 MB in the beginning and 116.5 MB in the end (delta: -58.3 MB). Peak memory consumption was 60.3 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:07,277 INFO L168 Benchmark]: Witness Printer took 79.45 ms. Allocated memory is still 142.6 MB. Free memory was 116.5 MB in the beginning and 110.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:07,280 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 77.6 MB. Free memory was 59.0 MB in the beginning and 58.9 MB in the end (delta: 29.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 575.28 ms. Allocated memory is still 94.4 MB. Free memory was 60.1 MB in the beginning and 53.8 MB in the end (delta: 6.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.88 ms. Allocated memory is still 94.4 MB. Free memory was 53.8 MB in the beginning and 52.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.36 ms. Allocated memory is still 94.4 MB. Free memory was 51.6 MB in the beginning and 50.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 524.98 ms. Allocated memory is still 94.4 MB. Free memory was 50.4 MB in the beginning and 58.7 MB in the end (delta: -8.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4754.75 ms. Allocated memory was 94.4 MB in the beginning and 142.6 MB in the end (delta: 48.2 MB). Free memory was 58.2 MB in the beginning and 116.5 MB in the end (delta: -58.3 MB). Peak memory consumption was 60.3 MB. Max. memory is 16.1 GB. * Witness Printer took 79.45 ms. Allocated memory is still 142.6 MB. Free memory was 116.5 MB in the beginning and 110.2 MB in the end (delta: 6.3 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 440 VarBasedMoverChecksPositive, 50 VarBasedMoverChecksNegative, 14 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 146 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.7s, 90 PlacesBefore, 35 PlacesAfterwards, 87 TransitionsBefore, 30 TransitionsAfterwards, 680 CoEnabledTransitionPairs, 6 FixpointIterations, 42 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 3315 MoverChecksTotal - CounterExampleResult [Line: 20]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L692] 0 pthread_mutex_t ma, mb; [L693] 0 int data1, data2; [L716] 0 pthread_t t1, t2; [L719] 0 data1 = 10 [L720] 0 data2 = 10 [L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data1=10, data2=10, ma={6:0}, mb={9:0}] [L697] 1 data1++ [L700] 1 data2++ VAL [arg={0:0}, arg={0:0}, data1=11, data2=11, ma={6:0}, mb={9:0}] [L702] 1 return 0; [L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={6:0}, mb={9:0}] [L723] 0 \read(t1) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={6:0}, mb={9:0}] [L707] 2 data1+=5 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=11, ma={6:0}, mb={9:0}] [L710] 2 data2-=6 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={6:0}, mb={9:0}] [L712] 2 return 0; [L723] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={6:0}, mb={9:0}] [L724] 0 \read(t2) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={6:0}, mb={9:0}] [L724] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={6:0}, mb={9:0}] [L725] COND TRUE 0 data1==16 && data2==5 [L20] COND FALSE 0 !(0) [L20] 0 __assert_fail ("0", "stateful01-1.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={6:0}, mb={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 44 SDtfs, 44 SDslu, 36 SDs, 0 SdLazy, 14 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 3288 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...