/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_VARIABLES --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/20_lamport.i


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


This is Ultimate 0.1.25-d623d84
[2020-07-20 17:33:32,271 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-07-20 17:33:32,274 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-20 17:33:32,295 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-20 17:33:32,295 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-20 17:33:32,297 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-20 17:33:32,299 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-20 17:33:32,312 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-20 17:33:32,314 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-20 17:33:32,315 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-07-20 17:33:32,317 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-07-20 17:33:32,319 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-07-20 17:33:32,319 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-20 17:33:32,322 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-20 17:33:32,325 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-20 17:33:32,327 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-20 17:33:32,329 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-20 17:33:32,331 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-20 17:33:32,333 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-20 17:33:32,340 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-20 17:33:32,346 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-20 17:33:32,350 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-20 17:33:32,351 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-07-20 17:33:32,352 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-20 17:33:32,355 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-20 17:33:32,355 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-20 17:33:32,355 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-07-20 17:33:32,358 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-07-20 17:33:32,358 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-07-20 17:33:32,360 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-07-20 17:33:32,361 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-07-20 17:33:32,362 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-07-20 17:33:32,364 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-07-20 17:33:32,364 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-07-20 17:33:32,366 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-20 17:33:32,366 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-07-20 17:33:32,367 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-07-20 17:33:32,367 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-07-20 17:33:32,367 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-07-20 17:33:32,368 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-07-20 17:33:32,370 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-07-20 17:33:32,371 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 17:33:32,410 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-07-20 17:33:32,411 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-20 17:33:32,416 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-20 17:33:32,416 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-07-20 17:33:32,416 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-07-20 17:33:32,416 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-20 17:33:32,417 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-07-20 17:33:32,417 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-07-20 17:33:32,417 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-07-20 17:33:32,420 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-07-20 17:33:32,421 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-07-20 17:33:32,421 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-20 17:33:32,421 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-07-20 17:33:32,421 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-07-20 17:33:32,421 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-07-20 17:33:32,422 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-07-20 17:33:32,422 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-07-20 17:33:32,422 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-20 17:33:32,423 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-07-20 17:33:32,424 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-07-20 17:33:32,424 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-07-20 17:33:32,424 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-20 17:33:32,424 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-20 17:33:32,424 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-07-20 17:33:32,425 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-20 17:33:32,425 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-07-20 17:33:32,425 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 17:33:32,425 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-20 17:33:32,426 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-07-20 17:33:32,426 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_VARIABLES
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 17:33:32,784 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-20 17:33:32,799 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-20 17:33:32,803 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-20 17:33:32,804 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-07-20 17:33:32,805 INFO  L275        PluginConnector]: CDTParser initialized
[2020-07-20 17:33:32,805 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/20_lamport.i
[2020-07-20 17:33:32,890 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1670de8f/0504b8baa47c41c3baa7b56ce230392a/FLAGe85d7a9ea
[2020-07-20 17:33:33,459 INFO  L306              CDTParser]: Found 1 translation units.
[2020-07-20 17:33:33,460 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/20_lamport.i
[2020-07-20 17:33:33,480 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1670de8f/0504b8baa47c41c3baa7b56ce230392a/FLAGe85d7a9ea
[2020-07-20 17:33:33,737 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1670de8f/0504b8baa47c41c3baa7b56ce230392a
[2020-07-20 17:33:33,748 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-20 17:33:33,752 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-20 17:33:33,753 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-20 17:33:33,753 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-20 17:33:33,757 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-20 17:33:33,758 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:33:33" (1/1) ...
[2020-07-20 17:33:33,761 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19dbf883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:33:33, skipping insertion in model container
[2020-07-20 17:33:33,762 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:33:33" (1/1) ...
[2020-07-20 17:33:33,770 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-07-20 17:33:33,814 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-07-20 17:33:34,169 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 17:33:34,308 INFO  L203         MainTranslator]: Completed pre-run
[2020-07-20 17:33:34,374 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 17:33:34,474 INFO  L208         MainTranslator]: Completed translation
[2020-07-20 17:33:34,475 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:33:34 WrapperNode
[2020-07-20 17:33:34,475 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-20 17:33:34,476 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-20 17:33:34,476 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-20 17:33:34,476 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-07-20 17:33:34,491 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:33:34" (1/1) ...
[2020-07-20 17:33:34,493 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:33:34" (1/1) ...
[2020-07-20 17:33:34,531 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:33:34" (1/1) ...
[2020-07-20 17:33:34,531 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:33:34" (1/1) ...
[2020-07-20 17:33:34,564 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:33:34" (1/1) ...
[2020-07-20 17:33:34,576 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:33:34" (1/1) ...
[2020-07-20 17:33:34,587 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:33:34" (1/1) ...
[2020-07-20 17:33:34,605 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-20 17:33:34,608 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-20 17:33:34,608 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-07-20 17:33:34,609 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-07-20 17:33:34,610 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:33:34" (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 17:33:34,682 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-20 17:33:34,682 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-20 17:33:34,682 INFO  L138     BoogieDeclarations]: Found implementation of procedure __bswap_32
[2020-07-20 17:33:34,682 INFO  L138     BoogieDeclarations]: Found implementation of procedure __bswap_64
[2020-07-20 17:33:34,683 INFO  L138     BoogieDeclarations]: Found implementation of procedure __uint16_identity
[2020-07-20 17:33:34,683 INFO  L138     BoogieDeclarations]: Found implementation of procedure __uint32_identity
[2020-07-20 17:33:34,684 INFO  L138     BoogieDeclarations]: Found implementation of procedure __uint64_identity
[2020-07-20 17:33:34,684 INFO  L138     BoogieDeclarations]: Found implementation of procedure thr1
[2020-07-20 17:33:34,684 INFO  L138     BoogieDeclarations]: Found implementation of procedure thr2
[2020-07-20 17:33:34,684 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-07-20 17:33:34,685 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-20 17:33:34,686 INFO  L130     BoogieDeclarations]: Found specification of procedure __bswap_32
[2020-07-20 17:33:34,686 INFO  L130     BoogieDeclarations]: Found specification of procedure __bswap_64
[2020-07-20 17:33:34,687 INFO  L130     BoogieDeclarations]: Found specification of procedure __uint16_identity
[2020-07-20 17:33:34,687 INFO  L130     BoogieDeclarations]: Found specification of procedure __uint32_identity
[2020-07-20 17:33:34,688 INFO  L130     BoogieDeclarations]: Found specification of procedure __uint64_identity
[2020-07-20 17:33:34,688 INFO  L130     BoogieDeclarations]: Found specification of procedure __sched_cpucount
[2020-07-20 17:33:34,688 INFO  L130     BoogieDeclarations]: Found specification of procedure __sched_cpualloc
[2020-07-20 17:33:34,689 INFO  L130     BoogieDeclarations]: Found specification of procedure __sched_cpufree
[2020-07-20 17:33:34,690 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_setparam
[2020-07-20 17:33:34,691 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_getparam
[2020-07-20 17:33:34,691 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_setscheduler
[2020-07-20 17:33:34,691 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_getscheduler
[2020-07-20 17:33:34,692 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_yield
[2020-07-20 17:33:34,692 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_get_priority_max
[2020-07-20 17:33:34,692 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_get_priority_min
[2020-07-20 17:33:34,692 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_rr_get_interval
[2020-07-20 17:33:34,692 INFO  L130     BoogieDeclarations]: Found specification of procedure clock
[2020-07-20 17:33:34,693 INFO  L130     BoogieDeclarations]: Found specification of procedure time
[2020-07-20 17:33:34,693 INFO  L130     BoogieDeclarations]: Found specification of procedure difftime
[2020-07-20 17:33:34,693 INFO  L130     BoogieDeclarations]: Found specification of procedure mktime
[2020-07-20 17:33:34,693 INFO  L130     BoogieDeclarations]: Found specification of procedure strftime
[2020-07-20 17:33:34,695 INFO  L130     BoogieDeclarations]: Found specification of procedure strftime_l
[2020-07-20 17:33:34,695 INFO  L130     BoogieDeclarations]: Found specification of procedure gmtime
[2020-07-20 17:33:34,695 INFO  L130     BoogieDeclarations]: Found specification of procedure localtime
[2020-07-20 17:33:34,695 INFO  L130     BoogieDeclarations]: Found specification of procedure gmtime_r
[2020-07-20 17:33:34,695 INFO  L130     BoogieDeclarations]: Found specification of procedure localtime_r
[2020-07-20 17:33:34,695 INFO  L130     BoogieDeclarations]: Found specification of procedure asctime
[2020-07-20 17:33:34,695 INFO  L130     BoogieDeclarations]: Found specification of procedure ctime
[2020-07-20 17:33:34,695 INFO  L130     BoogieDeclarations]: Found specification of procedure asctime_r
[2020-07-20 17:33:34,696 INFO  L130     BoogieDeclarations]: Found specification of procedure ctime_r
[2020-07-20 17:33:34,696 INFO  L130     BoogieDeclarations]: Found specification of procedure tzset
[2020-07-20 17:33:34,696 INFO  L130     BoogieDeclarations]: Found specification of procedure stime
[2020-07-20 17:33:34,696 INFO  L130     BoogieDeclarations]: Found specification of procedure timegm
[2020-07-20 17:33:34,696 INFO  L130     BoogieDeclarations]: Found specification of procedure timelocal
[2020-07-20 17:33:34,696 INFO  L130     BoogieDeclarations]: Found specification of procedure dysize
[2020-07-20 17:33:34,696 INFO  L130     BoogieDeclarations]: Found specification of procedure nanosleep
[2020-07-20 17:33:34,696 INFO  L130     BoogieDeclarations]: Found specification of procedure clock_getres
[2020-07-20 17:33:34,697 INFO  L130     BoogieDeclarations]: Found specification of procedure clock_gettime
[2020-07-20 17:33:34,697 INFO  L130     BoogieDeclarations]: Found specification of procedure clock_settime
[2020-07-20 17:33:34,697 INFO  L130     BoogieDeclarations]: Found specification of procedure clock_nanosleep
[2020-07-20 17:33:34,697 INFO  L130     BoogieDeclarations]: Found specification of procedure clock_getcpuclockid
[2020-07-20 17:33:34,697 INFO  L130     BoogieDeclarations]: Found specification of procedure timer_create
[2020-07-20 17:33:34,697 INFO  L130     BoogieDeclarations]: Found specification of procedure timer_delete
[2020-07-20 17:33:34,697 INFO  L130     BoogieDeclarations]: Found specification of procedure timer_settime
[2020-07-20 17:33:34,698 INFO  L130     BoogieDeclarations]: Found specification of procedure timer_gettime
[2020-07-20 17:33:34,698 INFO  L130     BoogieDeclarations]: Found specification of procedure timer_getoverrun
[2020-07-20 17:33:34,698 INFO  L130     BoogieDeclarations]: Found specification of procedure timespec_get
[2020-07-20 17:33:34,699 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_create
[2020-07-20 17:33:34,699 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_exit
[2020-07-20 17:33:34,699 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_join
[2020-07-20 17:33:34,699 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_detach
[2020-07-20 17:33:34,699 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_self
[2020-07-20 17:33:34,699 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_equal
[2020-07-20 17:33:34,700 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_init
[2020-07-20 17:33:34,700 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_destroy
[2020-07-20 17:33:34,700 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getdetachstate
[2020-07-20 17:33:34,700 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setdetachstate
[2020-07-20 17:33:34,700 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getguardsize
[2020-07-20 17:33:34,700 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setguardsize
[2020-07-20 17:33:34,700 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getschedparam
[2020-07-20 17:33:34,700 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setschedparam
[2020-07-20 17:33:34,701 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getschedpolicy
[2020-07-20 17:33:34,701 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setschedpolicy
[2020-07-20 17:33:34,701 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getinheritsched
[2020-07-20 17:33:34,701 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setinheritsched
[2020-07-20 17:33:34,701 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getscope
[2020-07-20 17:33:34,701 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setscope
[2020-07-20 17:33:34,702 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getstackaddr
[2020-07-20 17:33:34,702 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setstackaddr
[2020-07-20 17:33:34,702 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getstacksize
[2020-07-20 17:33:34,702 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setstacksize
[2020-07-20 17:33:34,702 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getstack
[2020-07-20 17:33:34,702 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setstack
[2020-07-20 17:33:34,702 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_setschedparam
[2020-07-20 17:33:34,703 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_getschedparam
[2020-07-20 17:33:34,703 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_setschedprio
[2020-07-20 17:33:34,703 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_once
[2020-07-20 17:33:34,703 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_setcancelstate
[2020-07-20 17:33:34,703 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_setcanceltype
[2020-07-20 17:33:34,703 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cancel
[2020-07-20 17:33:34,703 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_testcancel
[2020-07-20 17:33:34,704 INFO  L130     BoogieDeclarations]: Found specification of procedure __pthread_register_cancel
[2020-07-20 17:33:34,704 INFO  L130     BoogieDeclarations]: Found specification of procedure __pthread_unregister_cancel
[2020-07-20 17:33:34,704 INFO  L130     BoogieDeclarations]: Found specification of procedure __pthread_unwind_next
[2020-07-20 17:33:34,704 INFO  L130     BoogieDeclarations]: Found specification of procedure __sigsetjmp
[2020-07-20 17:33:34,704 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_init
[2020-07-20 17:33:34,704 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_destroy
[2020-07-20 17:33:34,704 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_trylock
[2020-07-20 17:33:34,704 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_lock
[2020-07-20 17:33:34,704 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_timedlock
[2020-07-20 17:33:34,704 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_unlock
[2020-07-20 17:33:34,705 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_getprioceiling
[2020-07-20 17:33:34,705 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_setprioceiling
[2020-07-20 17:33:34,705 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_consistent
[2020-07-20 17:33:34,705 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_init
[2020-07-20 17:33:34,705 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_destroy
[2020-07-20 17:33:34,705 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_getpshared
[2020-07-20 17:33:34,705 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_setpshared
[2020-07-20 17:33:34,705 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_gettype
[2020-07-20 17:33:34,705 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_settype
[2020-07-20 17:33:34,705 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_getprotocol
[2020-07-20 17:33:34,705 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_setprotocol
[2020-07-20 17:33:34,706 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_getprioceiling
[2020-07-20 17:33:34,706 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_setprioceiling
[2020-07-20 17:33:34,706 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_getrobust
[2020-07-20 17:33:34,706 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_setrobust
[2020-07-20 17:33:34,706 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_init
[2020-07-20 17:33:34,706 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_destroy
[2020-07-20 17:33:34,706 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_rdlock
[2020-07-20 17:33:34,707 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_tryrdlock
[2020-07-20 17:33:34,707 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_timedrdlock
[2020-07-20 17:33:34,707 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_wrlock
[2020-07-20 17:33:34,707 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_trywrlock
[2020-07-20 17:33:34,707 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_timedwrlock
[2020-07-20 17:33:34,707 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_unlock
[2020-07-20 17:33:34,707 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlockattr_init
[2020-07-20 17:33:34,707 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlockattr_destroy
[2020-07-20 17:33:34,708 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlockattr_getpshared
[2020-07-20 17:33:34,708 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlockattr_setpshared
[2020-07-20 17:33:34,708 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlockattr_getkind_np
[2020-07-20 17:33:34,708 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlockattr_setkind_np
[2020-07-20 17:33:34,708 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cond_init
[2020-07-20 17:33:34,708 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cond_destroy
[2020-07-20 17:33:34,709 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cond_signal
[2020-07-20 17:33:34,709 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cond_broadcast
[2020-07-20 17:33:34,709 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cond_wait
[2020-07-20 17:33:34,709 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cond_timedwait
[2020-07-20 17:33:34,709 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_condattr_init
[2020-07-20 17:33:34,709 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_condattr_destroy
[2020-07-20 17:33:34,710 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_condattr_getpshared
[2020-07-20 17:33:34,710 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_condattr_setpshared
[2020-07-20 17:33:34,710 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_condattr_getclock
[2020-07-20 17:33:34,710 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_condattr_setclock
[2020-07-20 17:33:34,710 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_spin_init
[2020-07-20 17:33:34,710 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_spin_destroy
[2020-07-20 17:33:34,711 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_spin_lock
[2020-07-20 17:33:34,711 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_spin_trylock
[2020-07-20 17:33:34,711 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_spin_unlock
[2020-07-20 17:33:34,711 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrier_init
[2020-07-20 17:33:34,711 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrier_destroy
[2020-07-20 17:33:34,711 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrier_wait
[2020-07-20 17:33:34,712 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrierattr_init
[2020-07-20 17:33:34,712 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrierattr_destroy
[2020-07-20 17:33:34,712 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrierattr_getpshared
[2020-07-20 17:33:34,712 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrierattr_setpshared
[2020-07-20 17:33:34,712 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_key_create
[2020-07-20 17:33:34,712 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_key_delete
[2020-07-20 17:33:34,713 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_getspecific
[2020-07-20 17:33:34,713 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_setspecific
[2020-07-20 17:33:34,713 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_getcpuclockid
[2020-07-20 17:33:34,713 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_atfork
[2020-07-20 17:33:34,713 INFO  L130     BoogieDeclarations]: Found specification of procedure thr1
[2020-07-20 17:33:34,713 INFO  L130     BoogieDeclarations]: Found specification of procedure thr2
[2020-07-20 17:33:34,713 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-07-20 17:33:34,714 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-07-20 17:33:34,714 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-07-20 17:33:34,714 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-07-20 17:33:34,714 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-20 17:33:34,714 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-20 17:33:34,714 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-07-20 17:33:34,717 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 17:33:35,326 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-20 17:33:35,327 INFO  L295             CfgBuilder]: Removed 8 assume(true) statements.
[2020-07-20 17:33:35,331 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:33:35 BoogieIcfgContainer
[2020-07-20 17:33:35,332 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-20 17:33:35,333 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-20 17:33:35,334 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-07-20 17:33:35,337 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-07-20 17:33:35,338 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:33:33" (1/3) ...
[2020-07-20 17:33:35,338 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c790700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:33:35, skipping insertion in model container
[2020-07-20 17:33:35,339 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:33:34" (2/3) ...
[2020-07-20 17:33:35,339 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c790700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:33:35, skipping insertion in model container
[2020-07-20 17:33:35,339 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:33:35" (3/3) ...
[2020-07-20 17:33:35,341 INFO  L109   eAbstractionObserver]: Analyzing ICFG 20_lamport.i
[2020-07-20 17:33:35,354 WARN  L146   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-07-20 17:33:35,354 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-20 17:33:35,363 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations.
[2020-07-20 17:33:35,364 INFO  L340   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-07-20 17:33:35,395 WARN  L313   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 17:33:35,396 WARN  L313   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 17:33:35,396 WARN  L313   ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 17:33:35,396 WARN  L313   ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 17:33:35,397 WARN  L313   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 17:33:35,397 WARN  L313   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 17:33:35,402 WARN  L313   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 17:33:35,402 WARN  L313   ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 17:33:35,402 WARN  L313   ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 17:33:35,403 WARN  L313   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 17:33:35,425 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-07-20 17:33:35,449 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-07-20 17:33:35,450 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-07-20 17:33:35,450 INFO  L377      AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-20 17:33:35,450 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-20 17:33:35,450 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-20 17:33:35,450 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-07-20 17:33:35,450 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-20 17:33:35,451 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-20 17:33:35,462 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 17:33:35,469 INFO  L168              Benchmark]: Toolchain (without parser) took 1717.37 ms. Allocated memory was 138.9 MB in the beginning and 206.0 MB in the end (delta: 67.1 MB). Free memory was 103.2 MB in the beginning and 99.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 70.7 MB. Max. memory is 7.1 GB.
[2020-07-20 17:33:35,470 INFO  L168              Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-07-20 17:33:35,472 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 722.57 ms. Allocated memory was 138.9 MB in the beginning and 206.0 MB in the end (delta: 67.1 MB). Free memory was 102.7 MB in the beginning and 167.2 MB in the end (delta: -64.4 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB.
[2020-07-20 17:33:35,473 INFO  L168              Benchmark]: Boogie Preprocessor took 128.99 ms. Allocated memory is still 206.0 MB. Free memory was 167.2 MB in the beginning and 163.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB.
[2020-07-20 17:33:35,473 INFO  L168              Benchmark]: RCFGBuilder took 723.90 ms. Allocated memory is still 206.0 MB. Free memory was 163.8 MB in the beginning and 107.9 MB in the end (delta: 55.9 MB). Peak memory consumption was 55.9 MB. Max. memory is 7.1 GB.
[2020-07-20 17:33:35,474 INFO  L168              Benchmark]: TraceAbstraction took 131.97 ms. Allocated memory is still 206.0 MB. Free memory was 107.9 MB in the beginning and 99.5 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 7.1 GB.
[2020-07-20 17:33:35,479 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.31 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 722.57 ms. Allocated memory was 138.9 MB in the beginning and 206.0 MB in the end (delta: 67.1 MB). Free memory was 102.7 MB in the beginning and 167.2 MB in the end (delta: -64.4 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 128.99 ms. Allocated memory is still 206.0 MB. Free memory was 167.2 MB in the beginning and 163.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 723.90 ms. Allocated memory is still 206.0 MB. Free memory was 163.8 MB in the beginning and 107.9 MB in the end (delta: 55.9 MB). Peak memory consumption was 55.9 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 131.97 ms. Allocated memory is still 206.0 MB. Free memory was 107.9 MB in the beginning and 99.5 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 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...