/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 NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-atomic/lamport.i


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


This is Ultimate 0.1.25-d623d84
[2020-07-20 11:42:02,129 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-07-20 11:42:02,132 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-07-20 11:42:02,150 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-07-20 11:42:02,150 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-07-20 11:42:02,152 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-07-20 11:42:02,154 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-07-20 11:42:02,165 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2020-07-20 11:42:02,169 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-07-20 11:42:02,172 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-07-20 11:42:02,173 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2020-07-20 11:42:02,176 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-07-20 11:42:02,176 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-07-20 11:42:02,178 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-07-20 11:42:02,181 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-07-20 11:42:02,182 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-07-20 11:42:02,184 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-07-20 11:42:02,185 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-07-20 11:42:02,186 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-07-20 11:42:02,192 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-07-20 11:42:02,198 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-07-20 11:42:02,202 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-07-20 11:42:02,204 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-07-20 11:42:02,204 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-07-20 11:42:02,206 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-07-20 11:42:02,207 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-07-20 11:42:02,207 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-07-20 11:42:02,208 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-07-20 11:42:02,208 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-07-20 11:42:02,209 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-07-20 11:42:02,209 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-07-20 11:42:02,210 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-07-20 11:42:02,210 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2020-07-20 11:42:02,211 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-07-20 11:42:02,212 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-07-20 11:42:02,212 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2020-07-20 11:42:02,213 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-07-20 11:42:02,213 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-07-20 11:42:02,213 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2020-07-20 11:42:02,214 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2020-07-20 11:42:02,215 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-07-20 11:42:02,216 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 11:42:02,230 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-07-20 11:42:02,231 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-07-20 11:42:02,232 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-07-20 11:42:02,232 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-07-20 11:42:02,232 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-07-20 11:42:02,232 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-07-20 11:42:02,233 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-07-20 11:42:02,233 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-07-20 11:42:02,233 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-07-20 11:42:02,233 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-07-20 11:42:02,233 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-07-20 11:42:02,234 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-07-20 11:42:02,234 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-07-20 11:42:02,234 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-07-20 11:42:02,234 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-07-20 11:42:02,234 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-07-20 11:42:02,235 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-07-20 11:42:02,235 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-07-20 11:42:02,235 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-07-20 11:42:02,235 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-07-20 11:42:02,235 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-07-20 11:42:02,236 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-07-20 11:42:02,236 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-07-20 11:42:02,236 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-07-20 11:42:02,236 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-07-20 11:42:02,236 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-07-20 11:42:02,237 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-07-20 11:42:02,237 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-07-20 11:42:02,237 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-07-20 11:42:02,237 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 -> NOT_INCREMENTALLY
[2020-07-20 11:42:02,521 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2020-07-20 11:42:02,534 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-07-20 11:42:02,537 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-07-20 11:42:02,539 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-07-20 11:42:02,539 INFO  L275        PluginConnector]: CDTParser initialized
[2020-07-20 11:42:02,540 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i
[2020-07-20 11:42:02,607 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b8d28379/6a1513c713b24835942e85e23731de1c/FLAGb0bb23157
[2020-07-20 11:42:03,139 INFO  L306              CDTParser]: Found 1 translation units.
[2020-07-20 11:42:03,139 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i
[2020-07-20 11:42:03,160 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b8d28379/6a1513c713b24835942e85e23731de1c/FLAGb0bb23157
[2020-07-20 11:42:03,392 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b8d28379/6a1513c713b24835942e85e23731de1c
[2020-07-20 11:42:03,401 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-07-20 11:42:03,404 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2020-07-20 11:42:03,405 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-07-20 11:42:03,405 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-07-20 11:42:03,409 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-07-20 11:42:03,410 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:42:03" (1/1) ...
[2020-07-20 11:42:03,413 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c1fc680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:42:03, skipping insertion in model container
[2020-07-20 11:42:03,413 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:42:03" (1/1) ...
[2020-07-20 11:42:03,421 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-07-20 11:42:03,468 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-07-20 11:42:03,953 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 11:42:03,966 INFO  L203         MainTranslator]: Completed pre-run
[2020-07-20 11:42:04,049 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-07-20 11:42:04,145 INFO  L208         MainTranslator]: Completed translation
[2020-07-20 11:42:04,146 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:42:04 WrapperNode
[2020-07-20 11:42:04,146 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-07-20 11:42:04,147 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-07-20 11:42:04,147 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-07-20 11:42:04,147 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-07-20 11:42:04,162 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:42:04" (1/1) ...
[2020-07-20 11:42:04,164 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:42:04" (1/1) ...
[2020-07-20 11:42:04,191 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:42:04" (1/1) ...
[2020-07-20 11:42:04,191 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:42:04" (1/1) ...
[2020-07-20 11:42:04,209 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:42:04" (1/1) ...
[2020-07-20 11:42:04,216 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:42:04" (1/1) ...
[2020-07-20 11:42:04,221 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:42:04" (1/1) ...
[2020-07-20 11:42:04,229 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-07-20 11:42:04,229 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-07-20 11:42:04,230 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-07-20 11:42:04,230 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-07-20 11:42:04,231 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:42:04" (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 11:42:04,300 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-07-20 11:42:04,300 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-07-20 11:42:04,300 INFO  L138     BoogieDeclarations]: Found implementation of procedure __bswap_32
[2020-07-20 11:42:04,300 INFO  L138     BoogieDeclarations]: Found implementation of procedure __bswap_64
[2020-07-20 11:42:04,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure __uint16_identity
[2020-07-20 11:42:04,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure __uint32_identity
[2020-07-20 11:42:04,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure __uint64_identity
[2020-07-20 11:42:04,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure thr1
[2020-07-20 11:42:04,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure thr2
[2020-07-20 11:42:04,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2020-07-20 11:42:04,302 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2020-07-20 11:42:04,302 INFO  L130     BoogieDeclarations]: Found specification of procedure __bswap_32
[2020-07-20 11:42:04,302 INFO  L130     BoogieDeclarations]: Found specification of procedure __bswap_64
[2020-07-20 11:42:04,302 INFO  L130     BoogieDeclarations]: Found specification of procedure __uint16_identity
[2020-07-20 11:42:04,302 INFO  L130     BoogieDeclarations]: Found specification of procedure __uint32_identity
[2020-07-20 11:42:04,303 INFO  L130     BoogieDeclarations]: Found specification of procedure __uint64_identity
[2020-07-20 11:42:04,303 INFO  L130     BoogieDeclarations]: Found specification of procedure __sched_cpucount
[2020-07-20 11:42:04,303 INFO  L130     BoogieDeclarations]: Found specification of procedure __sched_cpualloc
[2020-07-20 11:42:04,303 INFO  L130     BoogieDeclarations]: Found specification of procedure __sched_cpufree
[2020-07-20 11:42:04,303 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_setparam
[2020-07-20 11:42:04,304 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_getparam
[2020-07-20 11:42:04,304 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_setscheduler
[2020-07-20 11:42:04,304 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_getscheduler
[2020-07-20 11:42:04,304 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_yield
[2020-07-20 11:42:04,304 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_get_priority_max
[2020-07-20 11:42:04,304 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_get_priority_min
[2020-07-20 11:42:04,304 INFO  L130     BoogieDeclarations]: Found specification of procedure sched_rr_get_interval
[2020-07-20 11:42:04,305 INFO  L130     BoogieDeclarations]: Found specification of procedure clock
[2020-07-20 11:42:04,305 INFO  L130     BoogieDeclarations]: Found specification of procedure time
[2020-07-20 11:42:04,305 INFO  L130     BoogieDeclarations]: Found specification of procedure difftime
[2020-07-20 11:42:04,305 INFO  L130     BoogieDeclarations]: Found specification of procedure mktime
[2020-07-20 11:42:04,305 INFO  L130     BoogieDeclarations]: Found specification of procedure strftime
[2020-07-20 11:42:04,305 INFO  L130     BoogieDeclarations]: Found specification of procedure strftime_l
[2020-07-20 11:42:04,306 INFO  L130     BoogieDeclarations]: Found specification of procedure gmtime
[2020-07-20 11:42:04,306 INFO  L130     BoogieDeclarations]: Found specification of procedure localtime
[2020-07-20 11:42:04,306 INFO  L130     BoogieDeclarations]: Found specification of procedure gmtime_r
[2020-07-20 11:42:04,306 INFO  L130     BoogieDeclarations]: Found specification of procedure localtime_r
[2020-07-20 11:42:04,306 INFO  L130     BoogieDeclarations]: Found specification of procedure asctime
[2020-07-20 11:42:04,306 INFO  L130     BoogieDeclarations]: Found specification of procedure ctime
[2020-07-20 11:42:04,307 INFO  L130     BoogieDeclarations]: Found specification of procedure asctime_r
[2020-07-20 11:42:04,307 INFO  L130     BoogieDeclarations]: Found specification of procedure ctime_r
[2020-07-20 11:42:04,307 INFO  L130     BoogieDeclarations]: Found specification of procedure tzset
[2020-07-20 11:42:04,307 INFO  L130     BoogieDeclarations]: Found specification of procedure stime
[2020-07-20 11:42:04,307 INFO  L130     BoogieDeclarations]: Found specification of procedure timegm
[2020-07-20 11:42:04,307 INFO  L130     BoogieDeclarations]: Found specification of procedure timelocal
[2020-07-20 11:42:04,307 INFO  L130     BoogieDeclarations]: Found specification of procedure dysize
[2020-07-20 11:42:04,308 INFO  L130     BoogieDeclarations]: Found specification of procedure nanosleep
[2020-07-20 11:42:04,308 INFO  L130     BoogieDeclarations]: Found specification of procedure clock_getres
[2020-07-20 11:42:04,308 INFO  L130     BoogieDeclarations]: Found specification of procedure clock_gettime
[2020-07-20 11:42:04,308 INFO  L130     BoogieDeclarations]: Found specification of procedure clock_settime
[2020-07-20 11:42:04,308 INFO  L130     BoogieDeclarations]: Found specification of procedure clock_nanosleep
[2020-07-20 11:42:04,308 INFO  L130     BoogieDeclarations]: Found specification of procedure clock_getcpuclockid
[2020-07-20 11:42:04,309 INFO  L130     BoogieDeclarations]: Found specification of procedure timer_create
[2020-07-20 11:42:04,309 INFO  L130     BoogieDeclarations]: Found specification of procedure timer_delete
[2020-07-20 11:42:04,309 INFO  L130     BoogieDeclarations]: Found specification of procedure timer_settime
[2020-07-20 11:42:04,309 INFO  L130     BoogieDeclarations]: Found specification of procedure timer_gettime
[2020-07-20 11:42:04,309 INFO  L130     BoogieDeclarations]: Found specification of procedure timer_getoverrun
[2020-07-20 11:42:04,309 INFO  L130     BoogieDeclarations]: Found specification of procedure timespec_get
[2020-07-20 11:42:04,310 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_create
[2020-07-20 11:42:04,310 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_exit
[2020-07-20 11:42:04,310 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_join
[2020-07-20 11:42:04,310 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_detach
[2020-07-20 11:42:04,310 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_self
[2020-07-20 11:42:04,310 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_equal
[2020-07-20 11:42:04,311 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_init
[2020-07-20 11:42:04,311 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_destroy
[2020-07-20 11:42:04,311 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getdetachstate
[2020-07-20 11:42:04,311 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setdetachstate
[2020-07-20 11:42:04,311 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getguardsize
[2020-07-20 11:42:04,311 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setguardsize
[2020-07-20 11:42:04,312 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getschedparam
[2020-07-20 11:42:04,312 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setschedparam
[2020-07-20 11:42:04,312 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getschedpolicy
[2020-07-20 11:42:04,312 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setschedpolicy
[2020-07-20 11:42:04,312 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getinheritsched
[2020-07-20 11:42:04,312 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setinheritsched
[2020-07-20 11:42:04,312 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getscope
[2020-07-20 11:42:04,313 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setscope
[2020-07-20 11:42:04,313 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getstackaddr
[2020-07-20 11:42:04,313 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setstackaddr
[2020-07-20 11:42:04,313 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getstacksize
[2020-07-20 11:42:04,313 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setstacksize
[2020-07-20 11:42:04,313 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_getstack
[2020-07-20 11:42:04,314 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_attr_setstack
[2020-07-20 11:42:04,314 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_setschedparam
[2020-07-20 11:42:04,314 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_getschedparam
[2020-07-20 11:42:04,314 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_setschedprio
[2020-07-20 11:42:04,314 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_once
[2020-07-20 11:42:04,314 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_setcancelstate
[2020-07-20 11:42:04,315 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_setcanceltype
[2020-07-20 11:42:04,315 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cancel
[2020-07-20 11:42:04,315 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_testcancel
[2020-07-20 11:42:04,315 INFO  L130     BoogieDeclarations]: Found specification of procedure __pthread_register_cancel
[2020-07-20 11:42:04,315 INFO  L130     BoogieDeclarations]: Found specification of procedure __pthread_unregister_cancel
[2020-07-20 11:42:04,315 INFO  L130     BoogieDeclarations]: Found specification of procedure __pthread_unwind_next
[2020-07-20 11:42:04,315 INFO  L130     BoogieDeclarations]: Found specification of procedure __sigsetjmp
[2020-07-20 11:42:04,316 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_init
[2020-07-20 11:42:04,316 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_destroy
[2020-07-20 11:42:04,316 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_trylock
[2020-07-20 11:42:04,316 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_lock
[2020-07-20 11:42:04,316 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_timedlock
[2020-07-20 11:42:04,316 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_unlock
[2020-07-20 11:42:04,316 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_getprioceiling
[2020-07-20 11:42:04,317 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_setprioceiling
[2020-07-20 11:42:04,317 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutex_consistent
[2020-07-20 11:42:04,317 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_init
[2020-07-20 11:42:04,317 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_destroy
[2020-07-20 11:42:04,317 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_getpshared
[2020-07-20 11:42:04,317 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_setpshared
[2020-07-20 11:42:04,317 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_gettype
[2020-07-20 11:42:04,318 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_settype
[2020-07-20 11:42:04,318 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_getprotocol
[2020-07-20 11:42:04,318 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_setprotocol
[2020-07-20 11:42:04,318 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_getprioceiling
[2020-07-20 11:42:04,318 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_setprioceiling
[2020-07-20 11:42:04,318 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_getrobust
[2020-07-20 11:42:04,318 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_mutexattr_setrobust
[2020-07-20 11:42:04,319 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_init
[2020-07-20 11:42:04,319 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_destroy
[2020-07-20 11:42:04,319 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_rdlock
[2020-07-20 11:42:04,319 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_tryrdlock
[2020-07-20 11:42:04,319 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_timedrdlock
[2020-07-20 11:42:04,319 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_wrlock
[2020-07-20 11:42:04,320 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_trywrlock
[2020-07-20 11:42:04,320 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_timedwrlock
[2020-07-20 11:42:04,320 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlock_unlock
[2020-07-20 11:42:04,320 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlockattr_init
[2020-07-20 11:42:04,320 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlockattr_destroy
[2020-07-20 11:42:04,320 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlockattr_getpshared
[2020-07-20 11:42:04,321 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlockattr_setpshared
[2020-07-20 11:42:04,321 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlockattr_getkind_np
[2020-07-20 11:42:04,321 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_rwlockattr_setkind_np
[2020-07-20 11:42:04,321 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cond_init
[2020-07-20 11:42:04,321 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cond_destroy
[2020-07-20 11:42:04,321 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cond_signal
[2020-07-20 11:42:04,322 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cond_broadcast
[2020-07-20 11:42:04,322 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cond_wait
[2020-07-20 11:42:04,322 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_cond_timedwait
[2020-07-20 11:42:04,322 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_condattr_init
[2020-07-20 11:42:04,322 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_condattr_destroy
[2020-07-20 11:42:04,322 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_condattr_getpshared
[2020-07-20 11:42:04,323 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_condattr_setpshared
[2020-07-20 11:42:04,323 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_condattr_getclock
[2020-07-20 11:42:04,323 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_condattr_setclock
[2020-07-20 11:42:04,323 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_spin_init
[2020-07-20 11:42:04,323 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_spin_destroy
[2020-07-20 11:42:04,323 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_spin_lock
[2020-07-20 11:42:04,323 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_spin_trylock
[2020-07-20 11:42:04,324 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_spin_unlock
[2020-07-20 11:42:04,324 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrier_init
[2020-07-20 11:42:04,324 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrier_destroy
[2020-07-20 11:42:04,324 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrier_wait
[2020-07-20 11:42:04,324 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrierattr_init
[2020-07-20 11:42:04,324 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrierattr_destroy
[2020-07-20 11:42:04,325 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrierattr_getpshared
[2020-07-20 11:42:04,325 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_barrierattr_setpshared
[2020-07-20 11:42:04,325 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_key_create
[2020-07-20 11:42:04,325 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_key_delete
[2020-07-20 11:42:04,325 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_getspecific
[2020-07-20 11:42:04,325 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_setspecific
[2020-07-20 11:42:04,325 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_getcpuclockid
[2020-07-20 11:42:04,326 INFO  L130     BoogieDeclarations]: Found specification of procedure pthread_atfork
[2020-07-20 11:42:04,326 INFO  L130     BoogieDeclarations]: Found specification of procedure thr1
[2020-07-20 11:42:04,326 INFO  L130     BoogieDeclarations]: Found specification of procedure thr2
[2020-07-20 11:42:04,326 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2020-07-20 11:42:04,326 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-07-20 11:42:04,326 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-07-20 11:42:04,327 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-07-20 11:42:04,327 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-07-20 11:42:04,327 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-07-20 11:42:04,327 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-07-20 11:42:04,330 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 11:42:04,921 INFO  L290             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-07-20 11:42:04,922 INFO  L295             CfgBuilder]: Removed 8 assume(true) statements.
[2020-07-20 11:42:04,926 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:42:04 BoogieIcfgContainer
[2020-07-20 11:42:04,926 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-07-20 11:42:04,927 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-07-20 11:42:04,928 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-07-20 11:42:04,931 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-07-20 11:42:04,931 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:42:03" (1/3) ...
[2020-07-20 11:42:04,932 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e129a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:42:04, skipping insertion in model container
[2020-07-20 11:42:04,932 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:42:04" (2/3) ...
[2020-07-20 11:42:04,933 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e129a43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:42:04, skipping insertion in model container
[2020-07-20 11:42:04,933 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:42:04" (3/3) ...
[2020-07-20 11:42:04,934 INFO  L109   eAbstractionObserver]: Analyzing ICFG lamport.i
[2020-07-20 11:42:04,942 WARN  L146   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-07-20 11:42:04,942 INFO  L157   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION
[2020-07-20 11:42:04,950 INFO  L169   ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations.
[2020-07-20 11:42:04,951 INFO  L340   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-07-20 11:42:04,981 WARN  L313   ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:04,982 WARN  L313   ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:04,982 WARN  L313   ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:04,982 WARN  L313   ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:04,983 WARN  L313   ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:04,984 WARN  L313   ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:04,985 WARN  L313   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:04,985 WARN  L313   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:04,985 WARN  L313   ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:04,986 WARN  L313   ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:04,987 WARN  L313   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:04,987 WARN  L313   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:04,991 WARN  L313   ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:04,991 WARN  L313   ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:04,992 WARN  L313   ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:04,992 WARN  L313   ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:05,000 WARN  L313   ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:05,000 WARN  L313   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:05,000 WARN  L313   ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:05,001 WARN  L313   ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-07-20 11:42:05,024 INFO  L251      AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2020-07-20 11:42:05,046 INFO  L375      AbstractCegarLoop]: Interprodecural is true
[2020-07-20 11:42:05,047 INFO  L376      AbstractCegarLoop]: Hoare is true
[2020-07-20 11:42:05,047 INFO  L377      AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect
[2020-07-20 11:42:05,047 INFO  L378      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-07-20 11:42:05,047 INFO  L379      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-07-20 11:42:05,047 INFO  L380      AbstractCegarLoop]: Difference is false
[2020-07-20 11:42:05,048 INFO  L381      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-07-20 11:42:05,048 INFO  L385      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-07-20 11:42:05,059 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 11:42:05,064 INFO  L168              Benchmark]: Toolchain (without parser) took 1660.59 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.4 MB in the beginning and 92.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 73.6 MB. Max. memory is 7.1 GB.
[2020-07-20 11:42:05,066 INFO  L168              Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-07-20 11:42:05,067 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 741.09 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.0 MB in the beginning and 162.6 MB in the end (delta: -61.6 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB.
[2020-07-20 11:42:05,068 INFO  L168              Benchmark]: Boogie Preprocessor took 82.42 ms. Allocated memory is still 202.9 MB. Free memory was 162.6 MB in the beginning and 159.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB.
[2020-07-20 11:42:05,069 INFO  L168              Benchmark]: RCFGBuilder took 696.73 ms. Allocated memory is still 202.9 MB. Free memory was 159.2 MB in the beginning and 103.0 MB in the end (delta: 56.3 MB). Peak memory consumption was 56.3 MB. Max. memory is 7.1 GB.
[2020-07-20 11:42:05,069 INFO  L168              Benchmark]: TraceAbstraction took 134.12 ms. Allocated memory is still 202.9 MB. Free memory was 102.3 MB in the beginning and 92.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB.
[2020-07-20 11:42:05,074 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 741.09 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.0 MB in the beginning and 162.6 MB in the end (delta: -61.6 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 82.42 ms. Allocated memory is still 202.9 MB. Free memory was 162.6 MB in the beginning and 159.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 696.73 ms. Allocated memory is still 202.9 MB. Free memory was 159.2 MB in the beginning and 103.0 MB in the end (delta: 56.3 MB). Peak memory consumption was 56.3 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 134.12 ms. Allocated memory is still 202.9 MB. Free memory was 102.3 MB in the beginning and 92.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 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...