/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-ext/16_peterson.i


--------------------------------------------------------------------------------


This is Ultimate 0.1.25-d623d84
[2020-07-20 14:12:27,845 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-07-20 14:12:27,848 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-20 14:12:27,869 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-20 14:12:27,869 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-20 14:12:27,871 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-20 14:12:27,874 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-20 14:12:27,884 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-20 14:12:27,889 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-20 14:12:27,892 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-07-20 14:12:27,894 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-07-20 14:12:27,895 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-07-20 14:12:27,895 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-20 14:12:27,897 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-20 14:12:27,899 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-20 14:12:27,900 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-20 14:12:27,902 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-20 14:12:27,903 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-20 14:12:27,904 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-20 14:12:27,914 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-20 14:12:27,920 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-20 14:12:27,923 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-20 14:12:27,924 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-07-20 14:12:27,925 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-20 14:12:27,928 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-20 14:12:27,928 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-20 14:12:27,928 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-07-20 14:12:27,931 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-07-20 14:12:27,932 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-07-20 14:12:27,934 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-07-20 14:12:27,934 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-07-20 14:12:27,935 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-07-20 14:12:27,936 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-07-20 14:12:27,937 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-07-20 14:12:27,938 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-20 14:12:27,939 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-07-20 14:12:27,939 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-07-20 14:12:27,940 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-07-20 14:12:27,940 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-07-20 14:12:27,941 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-07-20 14:12:27,942 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-07-20 14:12:27,943 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-07-20 14:12:27,975 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-07-20 14:12:27,975 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-20 14:12:27,977 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-20 14:12:27,977 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-07-20 14:12:27,977 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-07-20 14:12:27,978 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-20 14:12:27,978 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-07-20 14:12:27,978 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-07-20 14:12:27,979 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-07-20 14:12:27,979 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-07-20 14:12:27,980 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-07-20 14:12:27,980 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-20 14:12:27,980 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-07-20 14:12:27,981 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-07-20 14:12:27,981 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-07-20 14:12:27,981 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-07-20 14:12:27,981 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-07-20 14:12:27,981 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-20 14:12:27,982 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-07-20 14:12:27,982 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-07-20 14:12:27,982 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-07-20 14:12:27,982 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-20 14:12:27,982 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-20 14:12:27,983 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-07-20 14:12:27,983 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-20 14:12:27,983 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-07-20 14:12:27,983 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 14:12:27,983 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-20 14:12:27,984 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-07-20 14:12:27,984 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4
[2020-07-20 14:12:28,280 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-20 14:12:28,300 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-20 14:12:28,303 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-20 14:12:28,305 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-07-20 14:12:28,305 INFO  L275        PluginConnector]: CDTParser initialized
[2020-07-20 14:12:28,306 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/16_peterson.i
[2020-07-20 14:12:28,378 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88e58de17/981d9d5955704cfaa0d636519084717f/FLAG561e45b98
[2020-07-20 14:12:28,927 INFO  L306              CDTParser]: Found 1 translation units.
[2020-07-20 14:12:28,928 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/16_peterson.i
[2020-07-20 14:12:28,947 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88e58de17/981d9d5955704cfaa0d636519084717f/FLAG561e45b98
[2020-07-20 14:12:29,147 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88e58de17/981d9d5955704cfaa0d636519084717f
[2020-07-20 14:12:29,156 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-20 14:12:29,159 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-20 14:12:29,160 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-20 14:12:29,160 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-20 14:12:29,164 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-20 14:12:29,165 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:12:29" (1/1) ...
[2020-07-20 14:12:29,168 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@147bda4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:12:29, skipping insertion in model container
[2020-07-20 14:12:29,168 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:12:29" (1/1) ...
[2020-07-20 14:12:29,175 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-07-20 14:12:29,220 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-07-20 14:12:29,691 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 14:12:29,702 INFO  L203         MainTranslator]: Completed pre-run
[2020-07-20 14:12:29,749 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 14:12:29,817 INFO  L208         MainTranslator]: Completed translation
[2020-07-20 14:12:29,818 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:12:29 WrapperNode
[2020-07-20 14:12:29,818 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-20 14:12:29,819 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-20 14:12:29,819 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-20 14:12:29,819 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-07-20 14:12:29,834 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:12:29" (1/1) ...
[2020-07-20 14:12:29,834 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:12:29" (1/1) ...
[2020-07-20 14:12:29,850 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:12:29" (1/1) ...
[2020-07-20 14:12:29,851 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:12:29" (1/1) ...
[2020-07-20 14:12:29,867 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:12:29" (1/1) ...
[2020-07-20 14:12:29,873 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:12:29" (1/1) ...
[2020-07-20 14:12:29,878 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:12:29" (1/1) ...
[2020-07-20 14:12:29,885 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-20 14:12:29,886 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-20 14:12:29,886 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-07-20 14:12:29,886 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-07-20 14:12:29,887 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:12:29" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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
[2020-07-20 14:12:29,949 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-20 14:12:29,949 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-20 14:12:29,949 INFO  L138     BoogieDeclarations]: Found implementation of procedure __bswap_32
[2020-07-20 14:12:29,949 INFO  L138     BoogieDeclarations]: Found implementation of procedure __bswap_64
[2020-07-20 14:12:29,949 INFO  L138     BoogieDeclarations]: Found implementation of procedure __uint16_identity
[2020-07-20 14:12:29,950 INFO  L138     BoogieDeclarations]: Found implementation of procedure __uint32_identity
[2020-07-20 14:12:29,950 INFO  L138     BoogieDeclarations]: Found implementation of procedure __uint64_identity
[2020-07-20 14:12:29,950 INFO  L138     BoogieDeclarations]: Found implementation of procedure thr1
[2020-07-20 14:12:29,950 INFO  L138     BoogieDeclarations]: Found implementation of procedure thr2
[2020-07-20 14:12:29,950 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-07-20 14:12:29,950 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-20 14:12:29,951 INFO  L130     BoogieDeclarations]: Found specification of procedure __bswap_32
[2020-07-20 14:12:29,951 INFO  L130     BoogieDeclarations]: Found specification of procedure __bswap_64
[2020-07-20 14:12:29,951 INFO  L130     BoogieDeclarations]: Found specification of procedure __uint16_identity
[2020-07-20 14:12:29,951 INFO  L130     BoogieDeclarations]: Found specification of procedure __uint32_identity
[2020-07-20 14:12:29,951 INFO  L130     BoogieDeclarations]: Found specification of procedure __uint64_identity
[2020-07-20 14:12:29,951 INFO  L130     BoogieDeclarations]: Found specification of procedure __sched_cpucount
[2020-07-20 14:12:29,952 INFO  L130     BoogieDeclarations]: Found specification of procedure __sched_cpualloc
[2020-07-20 14:12:29,952 INFO  L130     BoogieDeclarations]: Found specification of procedure __sched_cpufree
[2020-07-20 14:12:29,952 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_setparam
[2020-07-20 14:12:29,952 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_getparam
[2020-07-20 14:12:29,952 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_setscheduler
[2020-07-20 14:12:29,952 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_getscheduler
[2020-07-20 14:12:29,953 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_yield
[2020-07-20 14:12:29,953 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_get_priority_max
[2020-07-20 14:12:29,953 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_get_priority_min
[2020-07-20 14:12:29,953 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_rr_get_interval
[2020-07-20 14:12:29,953 INFO  L130     BoogieDeclarations]: Found specification of procedure clock
[2020-07-20 14:12:29,953 INFO  L130     BoogieDeclarations]: Found specification of procedure time
[2020-07-20 14:12:29,954 INFO  L130     BoogieDeclarations]: Found specification of procedure difftime
[2020-07-20 14:12:29,954 INFO  L130     BoogieDeclarations]: Found specification of procedure mktime
[2020-07-20 14:12:29,954 INFO  L130     BoogieDeclarations]: Found specification of procedure strftime
[2020-07-20 14:12:29,954 INFO  L130     BoogieDeclarations]: Found specification of procedure strftime_l
[2020-07-20 14:12:29,954 INFO  L130     BoogieDeclarations]: Found specification of procedure gmtime
[2020-07-20 14:12:29,954 INFO  L130     BoogieDeclarations]: Found specification of procedure localtime
[2020-07-20 14:12:29,954 INFO  L130     BoogieDeclarations]: Found specification of procedure gmtime_r
[2020-07-20 14:12:29,955 INFO  L130     BoogieDeclarations]: Found specification of procedure localtime_r
[2020-07-20 14:12:29,955 INFO  L130     BoogieDeclarations]: Found specification of procedure asctime
[2020-07-20 14:12:29,955 INFO  L130     BoogieDeclarations]: Found specification of procedure ctime
[2020-07-20 14:12:29,955 INFO  L130     BoogieDeclarations]: Found specification of procedure asctime_r
[2020-07-20 14:12:29,955 INFO  L130     BoogieDeclarations]: Found specification of procedure ctime_r
[2020-07-20 14:12:29,955 INFO  L130     BoogieDeclarations]: Found specification of procedure tzset
[2020-07-20 14:12:29,955 INFO  L130     BoogieDeclarations]: Found specification of procedure stime
[2020-07-20 14:12:29,955 INFO  L130     BoogieDeclarations]: Found specification of procedure timegm
[2020-07-20 14:12:29,955 INFO  L130     BoogieDeclarations]: Found specification of procedure timelocal
[2020-07-20 14:12:29,956 INFO  L130     BoogieDeclarations]: Found specification of procedure dysize
[2020-07-20 14:12:29,956 INFO  L130     BoogieDeclarations]: Found specification of procedure nanosleep
[2020-07-20 14:12:29,956 INFO  L130     BoogieDeclarations]: Found specification of procedure clock_getres
[2020-07-20 14:12:29,956 INFO  L130     BoogieDeclarations]: Found specification of procedure clock_gettime
[2020-07-20 14:12:29,956 INFO  L130     BoogieDeclarations]: Found specification of procedure clock_settime
[2020-07-20 14:12:29,956 INFO  L130     BoogieDeclarations]: Found specification of procedure clock_nanosleep
[2020-07-20 14:12:29,956 INFO  L130     BoogieDeclarations]: Found specification of procedure clock_getcpuclockid
[2020-07-20 14:12:29,957 INFO  L130     BoogieDeclarations]: Found specification of procedure timer_create
[2020-07-20 14:12:29,957 INFO  L130     BoogieDeclarations]: Found specification of procedure timer_delete
[2020-07-20 14:12:29,957 INFO  L130     BoogieDeclarations]: Found specification of procedure timer_settime
[2020-07-20 14:12:29,957 INFO  L130     BoogieDeclarations]: Found specification of procedure timer_gettime
[2020-07-20 14:12:29,957 INFO  L130     BoogieDeclarations]: Found specification of procedure timer_getoverrun
[2020-07-20 14:12:29,957 INFO  L130     BoogieDeclarations]: Found specification of procedure timespec_get
[2020-07-20 14:12:29,957 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_create
[2020-07-20 14:12:29,958 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_exit
[2020-07-20 14:12:29,958 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_join
[2020-07-20 14:12:29,958 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_detach
[2020-07-20 14:12:29,958 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_self
[2020-07-20 14:12:29,958 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_equal
[2020-07-20 14:12:29,958 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_init
[2020-07-20 14:12:29,958 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_destroy
[2020-07-20 14:12:29,958 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getdetachstate
[2020-07-20 14:12:29,959 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setdetachstate
[2020-07-20 14:12:29,959 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getguardsize
[2020-07-20 14:12:29,959 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setguardsize
[2020-07-20 14:12:29,959 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getschedparam
[2020-07-20 14:12:29,959 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setschedparam
[2020-07-20 14:12:29,959 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getschedpolicy
[2020-07-20 14:12:29,959 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setschedpolicy
[2020-07-20 14:12:29,959 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getinheritsched
[2020-07-20 14:12:29,960 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setinheritsched
[2020-07-20 14:12:29,960 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getscope
[2020-07-20 14:12:29,960 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setscope
[2020-07-20 14:12:29,960 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getstackaddr
[2020-07-20 14:12:29,960 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setstackaddr
[2020-07-20 14:12:29,960 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getstacksize
[2020-07-20 14:12:29,960 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setstacksize
[2020-07-20 14:12:29,961 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getstack
[2020-07-20 14:12:29,961 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setstack
[2020-07-20 14:12:29,961 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_setschedparam
[2020-07-20 14:12:29,961 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_getschedparam
[2020-07-20 14:12:29,961 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_setschedprio
[2020-07-20 14:12:29,961 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_once
[2020-07-20 14:12:29,962 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_setcancelstate
[2020-07-20 14:12:29,962 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_setcanceltype
[2020-07-20 14:12:29,962 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cancel
[2020-07-20 14:12:29,962 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_testcancel
[2020-07-20 14:12:29,962 INFO  L130     BoogieDeclarations]: Found specification of procedure __pthread_register_cancel
[2020-07-20 14:12:29,962 INFO  L130     BoogieDeclarations]: Found specification of procedure __pthread_unregister_cancel
[2020-07-20 14:12:29,962 INFO  L130     BoogieDeclarations]: Found specification of procedure __pthread_unwind_next
[2020-07-20 14:12:29,963 INFO  L130     BoogieDeclarations]: Found specification of procedure __sigsetjmp
[2020-07-20 14:12:29,963 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_init
[2020-07-20 14:12:29,963 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_destroy
[2020-07-20 14:12:29,963 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_trylock
[2020-07-20 14:12:29,963 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_lock
[2020-07-20 14:12:29,963 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_timedlock
[2020-07-20 14:12:29,963 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_unlock
[2020-07-20 14:12:29,964 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_getprioceiling
[2020-07-20 14:12:29,964 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_setprioceiling
[2020-07-20 14:12:29,964 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_consistent
[2020-07-20 14:12:29,964 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_init
[2020-07-20 14:12:29,964 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_destroy
[2020-07-20 14:12:29,964 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_getpshared
[2020-07-20 14:12:29,964 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_setpshared
[2020-07-20 14:12:29,965 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_gettype
[2020-07-20 14:12:29,965 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_settype
[2020-07-20 14:12:29,965 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_getprotocol
[2020-07-20 14:12:29,965 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_setprotocol
[2020-07-20 14:12:29,965 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_getprioceiling
[2020-07-20 14:12:29,965 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_setprioceiling
[2020-07-20 14:12:29,965 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_getrobust
[2020-07-20 14:12:29,966 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_setrobust
[2020-07-20 14:12:29,966 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_init
[2020-07-20 14:12:29,966 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_destroy
[2020-07-20 14:12:29,966 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_rdlock
[2020-07-20 14:12:29,966 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_tryrdlock
[2020-07-20 14:12:29,966 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_timedrdlock
[2020-07-20 14:12:29,966 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_wrlock
[2020-07-20 14:12:29,967 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_trywrlock
[2020-07-20 14:12:29,967 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_timedwrlock
[2020-07-20 14:12:29,967 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_unlock
[2020-07-20 14:12:29,967 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlockattr_init
[2020-07-20 14:12:29,967 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlockattr_destroy
[2020-07-20 14:12:29,967 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlockattr_getpshared
[2020-07-20 14:12:29,967 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlockattr_setpshared
[2020-07-20 14:12:29,968 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlockattr_getkind_np
[2020-07-20 14:12:29,968 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlockattr_setkind_np
[2020-07-20 14:12:29,968 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cond_init
[2020-07-20 14:12:29,968 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cond_destroy
[2020-07-20 14:12:29,968 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cond_signal
[2020-07-20 14:12:29,968 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cond_broadcast
[2020-07-20 14:12:29,968 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cond_wait
[2020-07-20 14:12:29,969 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cond_timedwait
[2020-07-20 14:12:29,969 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_condattr_init
[2020-07-20 14:12:29,969 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_condattr_destroy
[2020-07-20 14:12:29,969 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_condattr_getpshared
[2020-07-20 14:12:29,969 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_condattr_setpshared
[2020-07-20 14:12:29,969 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_condattr_getclock
[2020-07-20 14:12:29,970 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_condattr_setclock
[2020-07-20 14:12:29,970 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_spin_init
[2020-07-20 14:12:29,970 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_spin_destroy
[2020-07-20 14:12:29,970 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_spin_lock
[2020-07-20 14:12:29,970 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_spin_trylock
[2020-07-20 14:12:29,970 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_spin_unlock
[2020-07-20 14:12:29,970 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrier_init
[2020-07-20 14:12:29,971 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrier_destroy
[2020-07-20 14:12:29,971 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrier_wait
[2020-07-20 14:12:29,971 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrierattr_init
[2020-07-20 14:12:29,971 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrierattr_destroy
[2020-07-20 14:12:29,971 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrierattr_getpshared
[2020-07-20 14:12:29,971 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrierattr_setpshared
[2020-07-20 14:12:29,971 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_key_create
[2020-07-20 14:12:29,972 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_key_delete
[2020-07-20 14:12:29,972 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_getspecific
[2020-07-20 14:12:29,972 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_setspecific
[2020-07-20 14:12:29,972 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_getcpuclockid
[2020-07-20 14:12:29,972 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_atfork
[2020-07-20 14:12:29,972 INFO  L130     BoogieDeclarations]: Found specification of procedure thr1
[2020-07-20 14:12:29,973 INFO  L130     BoogieDeclarations]: Found specification of procedure thr2
[2020-07-20 14:12:29,973 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-07-20 14:12:29,973 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-07-20 14:12:29,973 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-07-20 14:12:29,973 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-07-20 14:12:29,973 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-20 14:12:29,973 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-20 14:12:29,974 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-07-20 14:12:29,976 WARN  L205             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2020-07-20 14:12:30,515 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-20 14:12:30,516 INFO  L295             CfgBuilder]: Removed 2 assume(true) statements.
[2020-07-20 14:12:30,520 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:12:30 BoogieIcfgContainer
[2020-07-20 14:12:30,520 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-20 14:12:30,521 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-20 14:12:30,521 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-07-20 14:12:30,525 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-07-20 14:12:30,525 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:12:29" (1/3) ...
[2020-07-20 14:12:30,526 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2a50da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:12:30, skipping insertion in model container
[2020-07-20 14:12:30,527 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:12:29" (2/3) ...
[2020-07-20 14:12:30,527 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2a50da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:12:30, skipping insertion in model container
[2020-07-20 14:12:30,527 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:12:30" (3/3) ...
[2020-07-20 14:12:30,529 INFO  L109   eAbstractionObserver]: Analyzing ICFG 16_peterson.i
[2020-07-20 14:12:30,540 WARN  L146   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-07-20 14:12:30,541 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-20 14:12:30,549 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations.
[2020-07-20 14:12:30,550 INFO  L340   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-07-20 14:12:30,579 WARN  L313   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 14:12:30,579 WARN  L313   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 14:12:30,579 WARN  L313   ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 14:12:30,580 WARN  L313   ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 14:12:30,581 WARN  L313   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 14:12:30,581 WARN  L313   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 14:12:30,585 WARN  L313   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 14:12:30,586 WARN  L313   ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 14:12:30,586 WARN  L313   ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 14:12:30,586 WARN  L313   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 14:12:30,609 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-07-20 14:12:30,634 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-07-20 14:12:30,635 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-07-20 14:12:30,635 INFO  L377      AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-20 14:12:30,635 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-20 14:12:30,636 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-20 14:12:30,636 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-07-20 14:12:30,636 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-20 14:12:30,636 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-20 14:12:30,646 FATAL L?                        ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception:
java.lang.UnsupportedOperationException: unsupported for concurrent analysis IcfgReturnTransition
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CFG2NestedWordAutomaton.constructPetriNet(CFG2NestedWordAutomaton.java:390)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CFG2NestedWordAutomaton.constructPetriNetWithSPredicates(CFG2NestedWordAutomaton.java:131)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:341)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:394)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:370)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:352)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:127)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
[2020-07-20 14:12:30,653 INFO  L168              Benchmark]: Toolchain (without parser) took 1494.04 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 98.7 MB in the beginning and 99.7 MB in the end (delta: -980.8 kB). Peak memory consumption was 64.0 MB. Max. memory is 7.1 GB.
[2020-07-20 14:12:30,654 INFO  L168              Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 136.3 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB.
[2020-07-20 14:12:30,655 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 658.59 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 98.3 MB in the beginning and 162.6 MB in the end (delta: -64.3 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB.
[2020-07-20 14:12:30,656 INFO  L168              Benchmark]: Boogie Preprocessor took 66.43 ms. Allocated memory is still 201.3 MB. Free memory was 162.6 MB in the beginning and 158.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB.
[2020-07-20 14:12:30,657 INFO  L168              Benchmark]: RCFGBuilder took 634.44 ms. Allocated memory is still 201.3 MB. Free memory was 158.8 MB in the beginning and 107.6 MB in the end (delta: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 7.1 GB.
[2020-07-20 14:12:30,658 INFO  L168              Benchmark]: TraceAbstraction took 128.88 ms. Allocated memory is still 201.3 MB. Free memory was 107.6 MB in the beginning and 99.7 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 7.1 GB.
[2020-07-20 14:12:30,668 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.22 ms. Allocated memory is still 136.3 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 658.59 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 98.3 MB in the beginning and 162.6 MB in the end (delta: -64.3 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 66.43 ms. Allocated memory is still 201.3 MB. Free memory was 162.6 MB in the beginning and 158.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 634.44 ms. Allocated memory is still 201.3 MB. Free memory was 158.8 MB in the beginning and 107.6 MB in the end (delta: 51.2 MB). Peak memory consumption was 51.2 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 128.88 ms. Allocated memory is still 201.3 MB. Free memory was 107.6 MB in the beginning and 99.7 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - ExceptionOrErrorResult: UnsupportedOperationException: unsupported for concurrent analysis IcfgReturnTransition
    de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: unsupported for concurrent analysis IcfgReturnTransition: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CFG2NestedWordAutomaton.constructPetriNet(CFG2NestedWordAutomaton.java:390)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...