/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-SemanticLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe010_power.opt.i


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


This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8
[2021-03-12 21:39:48,266 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-03-12 21:39:48,268 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-03-12 21:39:48,294 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-03-12 21:39:48,294 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-03-12 21:39:48,295 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-03-12 21:39:48,296 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-03-12 21:39:48,298 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-03-12 21:39:48,300 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-03-12 21:39:48,301 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2021-03-12 21:39:48,303 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-03-12 21:39:48,303 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-03-12 21:39:48,304 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-03-12 21:39:48,305 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-03-12 21:39:48,306 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-03-12 21:39:48,307 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-03-12 21:39:48,309 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-03-12 21:39:48,310 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-03-12 21:39:48,312 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-03-12 21:39:48,314 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-03-12 21:39:48,315 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-03-12 21:39:48,316 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-03-12 21:39:48,318 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2021-03-12 21:39:48,319 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-03-12 21:39:48,320 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-03-12 21:39:48,320 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-03-12 21:39:48,321 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-03-12 21:39:48,321 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-03-12 21:39:48,322 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-03-12 21:39:48,323 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-03-12 21:39:48,323 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-03-12 21:39:48,324 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-03-12 21:39:48,324 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-03-12 21:39:48,325 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-03-12 21:39:48,325 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-03-12 21:39:48,326 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-03-12 21:39:48,326 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-03-12 21:39:48,336 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-03-12 21:39:48,340 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-SemanticLbe-Delay.epf
[2021-03-12 21:39:48,371 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-03-12 21:39:48,371 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-03-12 21:39:48,371 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-03-12 21:39:48,371 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-03-12 21:39:48,372 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-03-12 21:39:48,372 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-03-12 21:39:48,373 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-03-12 21:39:48,373 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-03-12 21:39:48,373 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-03-12 21:39:48,373 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-03-12 21:39:48,373 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-03-12 21:39:48,373 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-03-12 21:39:48,373 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-03-12 21:39:48,373 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-03-12 21:39:48,374 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-03-12 21:39:48,374 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-03-12 21:39:48,374 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-03-12 21:39:48,374 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-03-12 21:39:48,374 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-03-12 21:39:48,374 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-03-12 21:39:48,374 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-03-12 21:39:48,375 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2021-03-12 21:39:48,375 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-03-12 21:39:48,375 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-03-12 21:39:48,375 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-03-12 21:39:48,375 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-03-12 21:39:48,375 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-03-12 21:39:48,375 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-03-12 21:39:48,375 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-03-12 21:39:48,376 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2021-03-12 21:39:48,376 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-03-12 21:39:48,376 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET
[2021-03-12 21:39:48,376 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-03-12 21:39:48,724 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-03-12 21:39:48,751 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-03-12 21:39:48,754 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-03-12 21:39:48,755 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-03-12 21:39:48,756 INFO  L275        PluginConnector]: CDTParser initialized
[2021-03-12 21:39:48,757 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe010_power.opt.i
[2021-03-12 21:39:48,809 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efa66ac75/03b5ca950405464885c530354a8e84e3/FLAG18d701d14
[2021-03-12 21:39:49,380 INFO  L306              CDTParser]: Found 1 translation units.
[2021-03-12 21:39:49,381 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_power.opt.i
[2021-03-12 21:39:49,392 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efa66ac75/03b5ca950405464885c530354a8e84e3/FLAG18d701d14
[2021-03-12 21:39:49,646 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efa66ac75/03b5ca950405464885c530354a8e84e3
[2021-03-12 21:39:49,648 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-03-12 21:39:49,658 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2021-03-12 21:39:49,660 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-03-12 21:39:49,660 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-03-12 21:39:49,663 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-03-12 21:39:49,663 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.03 09:39:49" (1/1) ...
[2021-03-12 21:39:49,664 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@133d6c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:39:49, skipping insertion in model container
[2021-03-12 21:39:49,664 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.03 09:39:49" (1/1) ...
[2021-03-12 21:39:49,678 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-03-12 21:39:49,735 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-03-12 21:39:49,848 WARN  L226   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_power.opt.i[951,964]
[2021-03-12 21:39:50,041 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-03-12 21:39:50,058 INFO  L203         MainTranslator]: Completed pre-run
[2021-03-12 21:39:50,084 WARN  L226   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe010_power.opt.i[951,964]
[2021-03-12 21:39:50,113 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-03-12 21:39:50,166 INFO  L208         MainTranslator]: Completed translation
[2021-03-12 21:39:50,167 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:39:50 WrapperNode
[2021-03-12 21:39:50,167 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-03-12 21:39:50,168 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-03-12 21:39:50,168 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-03-12 21:39:50,168 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-03-12 21:39:50,174 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:39:50" (1/1) ...
[2021-03-12 21:39:50,187 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:39:50" (1/1) ...
[2021-03-12 21:39:50,218 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-03-12 21:39:50,219 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-03-12 21:39:50,219 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-03-12 21:39:50,219 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-03-12 21:39:50,227 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:39:50" (1/1) ...
[2021-03-12 21:39:50,227 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:39:50" (1/1) ...
[2021-03-12 21:39:50,231 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:39:50" (1/1) ...
[2021-03-12 21:39:50,231 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:39:50" (1/1) ...
[2021-03-12 21:39:50,237 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:39:50" (1/1) ...
[2021-03-12 21:39:50,240 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:39:50" (1/1) ...
[2021-03-12 21:39:50,243 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:39:50" (1/1) ...
[2021-03-12 21:39:50,258 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-03-12 21:39:50,259 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-03-12 21:39:50,259 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-03-12 21:39:50,259 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-03-12 21:39:50,260 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:39:50" (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
[2021-03-12 21:39:50,338 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2021-03-12 21:39:50,339 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2021-03-12 21:39:50,339 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-03-12 21:39:50,339 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-03-12 21:39:50,339 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2021-03-12 21:39:50,339 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2021-03-12 21:39:50,339 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2021-03-12 21:39:50,339 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2021-03-12 21:39:50,339 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-03-12 21:39:50,340 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2021-03-12 21:39:50,340 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-03-12 21:39:50,340 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-03-12 21:39:50,341 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-03-12 21:39:51,836 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-03-12 21:39:51,837 INFO  L299             CfgBuilder]: Removed 10 assume(true) statements.
[2021-03-12 21:39:51,840 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 09:39:51 BoogieIcfgContainer
[2021-03-12 21:39:51,840 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-03-12 21:39:51,843 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-03-12 21:39:51,843 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-03-12 21:39:51,845 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-03-12 21:39:51,845 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.03 09:39:49" (1/3) ...
[2021-03-12 21:39:51,846 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463b1334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 09:39:51, skipping insertion in model container
[2021-03-12 21:39:51,846 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.03 09:39:50" (2/3) ...
[2021-03-12 21:39:51,847 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@463b1334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 09:39:51, skipping insertion in model container
[2021-03-12 21:39:51,847 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 09:39:51" (3/3) ...
[2021-03-12 21:39:51,848 INFO  L111   eAbstractionObserver]: Analyzing ICFG safe010_power.opt.i
[2021-03-12 21:39:51,853 WARN  L142   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-03-12 21:39:51,853 INFO  L153   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-03-12 21:39:51,857 INFO  L165   ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations.
[2021-03-12 21:39:51,857 INFO  L323   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-03-12 21:39:51,879 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,879 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,880 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,880 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,880 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,880 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,880 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,880 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,881 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,881 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,881 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,881 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,881 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,881 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,881 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,882 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,882 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,882 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,882 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,882 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,882 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,882 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,882 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,883 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,883 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,883 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,883 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,883 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,883 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,883 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,884 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,884 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,884 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,884 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,885 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,885 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,885 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,885 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,885 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,885 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,885 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,885 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,886 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,886 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,886 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,886 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,886 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,886 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,886 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,887 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,887 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,887 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,887 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,887 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,887 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,887 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,888 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,888 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,888 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,888 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,890 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,890 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,890 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,890 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,890 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,890 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,890 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,891 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,891 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,891 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,891 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,891 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,892 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,893 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,893 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,893 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,893 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,893 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,893 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,893 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,893 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,894 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:39:51,894 INFO  L149    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2021-03-12 21:39:51,909 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2021-03-12 21:39:51,956 INFO  L376      AbstractCegarLoop]: Interprodecural is true
[2021-03-12 21:39:51,956 INFO  L377      AbstractCegarLoop]: Hoare is true
[2021-03-12 21:39:51,956 INFO  L378      AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-03-12 21:39:51,956 INFO  L379      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-03-12 21:39:51,956 INFO  L380      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-03-12 21:39:51,956 INFO  L381      AbstractCegarLoop]: Difference is false
[2021-03-12 21:39:51,957 INFO  L382      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-03-12 21:39:51,957 INFO  L386      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-03-12 21:39:51,969 INFO  L118   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2021-03-12 21:39:51,970 INFO  L133   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 85 places, 80 transitions, 170 flow
[2021-03-12 21:39:51,976 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 85 places, 80 transitions, 170 flow
[2021-03-12 21:39:51,980 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 85 places, 80 transitions, 170 flow
[2021-03-12 21:39:52,015 INFO  L129       PetriNetUnfolder]: 2/78 cut-off events.
[2021-03-12 21:39:52,016 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-03-12 21:39:52,019 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 85 conditions, 78 events. 2/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. 
[2021-03-12 21:39:52,023 INFO  L116        LiptonReduction]: Number of co-enabled transitions 926
[2021-03-12 21:39:52,408 WARN  L205               SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58
[2021-03-12 21:39:52,839 WARN  L205               SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 84
[2021-03-12 21:39:52,972 WARN  L205               SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 81
[2021-03-12 21:39:53,993 WARN  L205               SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 184
[2021-03-12 21:39:54,303 WARN  L205               SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 182
[2021-03-12 21:39:55,616 WARN  L205               SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 308 DAG size of output: 264
[2021-03-12 21:39:56,190 WARN  L205               SmtUtils]: Spent 572.00 ms on a formula simplification that was a NOOP. DAG size: 261
[2021-03-12 21:39:56,619 WARN  L205               SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 83
[2021-03-12 21:39:56,729 WARN  L205               SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 83
[2021-03-12 21:39:57,967 WARN  L205               SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 182
[2021-03-12 21:39:58,247 WARN  L205               SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 182
[2021-03-12 21:39:59,367 WARN  L205               SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 261 DAG size of output: 260
[2021-03-12 21:39:59,872 WARN  L205               SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 260
[2021-03-12 21:40:00,918 WARN  L205               SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106
[2021-03-12 21:40:01,024 WARN  L205               SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 102
[2021-03-12 21:40:01,280 WARN  L205               SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106
[2021-03-12 21:40:01,386 WARN  L205               SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 102
[2021-03-12 21:40:01,388 INFO  L131        LiptonReduction]: Checked pairs total: 2219
[2021-03-12 21:40:01,388 INFO  L133        LiptonReduction]: Total number of compositions: 70
[2021-03-12 21:40:01,413 INFO  L428      AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-12 21:40:01,418 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-12 21:40:01,419 INFO  L82        PathProgramCache]: Analyzing trace with hash 913266, now seen corresponding path program 1 times
[2021-03-12 21:40:01,425 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-12 21:40:01,426 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848478587]
[2021-03-12 21:40:01,426 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-12 21:40:01,559 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-12 21:40:01,645 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-12 21:40:01,645 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848478587]
[2021-03-12 21:40:01,646 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-12 21:40:01,646 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2021-03-12 21:40:01,646 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975844839]
[2021-03-12 21:40:01,649 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-03-12 21:40:01,650 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-12 21:40:01,662 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-03-12 21:40:01,666 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-03-12 21:40:01,666 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-03-12 21:40:01,667 INFO  L480      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-03-12 21:40:01,667 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-12 21:40:01,668 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-03-12 21:40:01,746 WARN  L313   ript$VariableManager]: TermVariabe |v_P1_#t~ite11_37| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:01,769 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-03-12 21:40:01,770 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-03-12 21:40:01,770 INFO  L428      AbstractCegarLoop]: === Iteration 2 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-12 21:40:01,770 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-12 21:40:01,770 INFO  L82        PathProgramCache]: Analyzing trace with hash -275102979, now seen corresponding path program 1 times
[2021-03-12 21:40:01,770 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-12 21:40:01,770 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416798237]
[2021-03-12 21:40:01,770 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-12 21:40:01,912 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-12 21:40:02,341 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-12 21:40:02,341 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416798237]
[2021-03-12 21:40:02,341 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-12 21:40:02,341 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-03-12 21:40:02,341 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425020187]
[2021-03-12 21:40:02,342 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 9 states
[2021-03-12 21:40:02,342 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-12 21:40:02,343 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-03-12 21:40:02,343 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2021-03-12 21:40:02,343 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-03-12 21:40:02,343 INFO  L480      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-03-12 21:40:02,343 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 9 states, 8 states have (on average 2.0) internal successors, (16), 8 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-12 21:40:02,343 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-03-12 21:40:02,344 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-03-12 21:40:02,602 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite19_48| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,604 WARN  L313   ript$VariableManager]: TermVariabe |v_P1_#t~ite11_37| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,637 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite19_48| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,639 WARN  L313   ript$VariableManager]: TermVariabe |v_P1_#t~ite11_37| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,663 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite27_140| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,664 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite44_136| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,664 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite29_144| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,664 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite38_150| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,664 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite41_162| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,664 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite33_146| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,664 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite35_140| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,664 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite32_156| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,664 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite30_138| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,664 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite45_130| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,665 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite39_146| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,665 WARN  L313   ript$VariableManager]: TermVariabe v_~y~0_324 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,665 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite36_130| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,665 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite42_152| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,666 WARN  L313   ript$VariableManager]: TermVariabe |v_P1_#t~ite11_37| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,714 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite27_140| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,715 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite44_136| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,715 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite29_144| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,715 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite38_150| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,715 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite41_162| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,715 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite33_146| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,715 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite35_140| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,715 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite32_156| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,715 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite30_138| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,716 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite45_130| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,716 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite39_146| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,716 WARN  L313   ript$VariableManager]: TermVariabe v_~y~0_324 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,716 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite36_130| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,716 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite42_152| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,720 WARN  L313   ript$VariableManager]: TermVariabe |v_P1_#t~ite11_37| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,773 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite19_48| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,779 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite19_48| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,800 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite27_140| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,800 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite44_136| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,800 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite29_144| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,800 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite38_150| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,800 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite41_162| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,801 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite33_146| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,801 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite35_140| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,801 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite32_156| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,801 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite30_138| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,801 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite45_130| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,801 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite39_146| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,801 WARN  L313   ript$VariableManager]: TermVariabe v_~y~0_324 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,801 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite36_130| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,801 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite42_152| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,827 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite27_140| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,827 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite44_136| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,828 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite29_144| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,828 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite38_150| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,828 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite41_162| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,828 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite33_146| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,828 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite35_140| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,828 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite32_156| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,829 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite30_138| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,832 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite45_130| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,832 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite39_146| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,833 WARN  L313   ript$VariableManager]: TermVariabe v_~y~0_324 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,833 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite36_130| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,833 WARN  L313   ript$VariableManager]: TermVariabe |v_ULTIMATE.start_main_#t~ite42_152| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:02,867 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-03-12 21:40:02,867 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-03-12 21:40:02,867 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-03-12 21:40:02,868 INFO  L428      AbstractCegarLoop]: === Iteration 3 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-12 21:40:02,868 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-12 21:40:02,868 INFO  L82        PathProgramCache]: Analyzing trace with hash 1869155985, now seen corresponding path program 1 times
[2021-03-12 21:40:02,868 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-12 21:40:02,868 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233786746]
[2021-03-12 21:40:02,869 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-12 21:40:02,940 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-12 21:40:02,999 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-12 21:40:02,999 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233786746]
[2021-03-12 21:40:02,999 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-12 21:40:02,999 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-03-12 21:40:02,999 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650040199]
[2021-03-12 21:40:03,000 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-03-12 21:40:03,000 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-12 21:40:03,001 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-03-12 21:40:03,001 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-03-12 21:40:03,001 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-03-12 21:40:03,001 INFO  L480      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-03-12 21:40:03,001 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-03-12 21:40:03,001 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-03-12 21:40:03,001 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2021-03-12 21:40:03,001 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-03-12 21:40:03,042 WARN  L313   ript$VariableManager]: TermVariabe |v_P0_#t~ite5_29| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:03,047 WARN  L313   ript$VariableManager]: TermVariabe |v_P0_#t~ite5_29| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:03,058 WARN  L313   ript$VariableManager]: TermVariabe |v_P0_#t~ite5_29| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:03,083 WARN  L313   ript$VariableManager]: TermVariabe |v_P1_#t~ite11_37| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:03,084 WARN  L313   ript$VariableManager]: TermVariabe |v_P0_#t~ite5_29| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:03,110 WARN  L313   ript$VariableManager]: TermVariabe |v_P1_#t~ite11_37| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:03,111 WARN  L313   ript$VariableManager]: TermVariabe |v_P0_#t~ite5_29| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-12 21:40:03,151 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-03-12 21:40:03,153 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-03-12 21:40:03,153 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-03-12 21:40:03,153 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-03-12 21:40:03,154 INFO  L428      AbstractCegarLoop]: === Iteration 4 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-12 21:40:03,154 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-12 21:40:03,154 INFO  L82        PathProgramCache]: Analyzing trace with hash -1753305861, now seen corresponding path program 2 times
[2021-03-12 21:40:03,154 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-12 21:40:03,154 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796460278]
[2021-03-12 21:40:03,154 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-12 21:40:03,237 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-03-12 21:40:03,237 INFO  L223             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-03-12 21:40:03,272 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-03-12 21:40:03,272 INFO  L223             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-03-12 21:40:03,297 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-03-12 21:40:03,297 INFO  L620         BasicCegarLoop]: Counterexample might be feasible
[2021-03-12 21:40:03,297 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-03-12 21:40:03,352 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.03 09:40:03 BasicIcfg
[2021-03-12 21:40:03,353 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-03-12 21:40:03,354 INFO  L168              Benchmark]: Toolchain (without parser) took 13704.07 ms. Allocated memory was 356.5 MB in the beginning and 551.6 MB in the end (delta: 195.0 MB). Free memory was 319.6 MB in the beginning and 249.2 MB in the end (delta: 70.4 MB). Peak memory consumption was 267.1 MB. Max. memory is 16.0 GB.
[2021-03-12 21:40:03,355 INFO  L168              Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 356.5 MB. Free memory is still 337.7 MB. There was no memory consumed. Max. memory is 16.0 GB.
[2021-03-12 21:40:03,355 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 507.77 ms. Allocated memory is still 356.5 MB. Free memory was 319.0 MB in the beginning and 319.7 MB in the end (delta: -744.0 kB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB.
[2021-03-12 21:40:03,355 INFO  L168              Benchmark]: Boogie Procedure Inliner took 50.33 ms. Allocated memory is still 356.5 MB. Free memory was 319.7 MB in the beginning and 316.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB.
[2021-03-12 21:40:03,356 INFO  L168              Benchmark]: Boogie Preprocessor took 39.13 ms. Allocated memory is still 356.5 MB. Free memory was 316.5 MB in the beginning and 314.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
[2021-03-12 21:40:03,356 INFO  L168              Benchmark]: RCFGBuilder took 1581.25 ms. Allocated memory is still 356.5 MB. Free memory was 314.5 MB in the beginning and 281.4 MB in the end (delta: 33.1 MB). Peak memory consumption was 145.3 MB. Max. memory is 16.0 GB.
[2021-03-12 21:40:03,357 INFO  L168              Benchmark]: TraceAbstraction took 11510.09 ms. Allocated memory was 356.5 MB in the beginning and 551.6 MB in the end (delta: 195.0 MB). Free memory was 280.3 MB in the beginning and 249.2 MB in the end (delta: 31.1 MB). Peak memory consumption was 225.1 MB. Max. memory is 16.0 GB.
[2021-03-12 21:40:03,359 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.12 ms. Allocated memory is still 356.5 MB. Free memory is still 337.7 MB. There was no memory consumed. Max. memory is 16.0 GB.
 * CACSL2BoogieTranslator took 507.77 ms. Allocated memory is still 356.5 MB. Free memory was 319.0 MB in the beginning and 319.7 MB in the end (delta: -744.0 kB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB.
 * Boogie Procedure Inliner took 50.33 ms. Allocated memory is still 356.5 MB. Free memory was 319.7 MB in the beginning and 316.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB.
 * Boogie Preprocessor took 39.13 ms. Allocated memory is still 356.5 MB. Free memory was 316.5 MB in the beginning and 314.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
 * RCFGBuilder took 1581.25 ms. Allocated memory is still 356.5 MB. Free memory was 314.5 MB in the beginning and 281.4 MB in the end (delta: 33.1 MB). Peak memory consumption was 145.3 MB. Max. memory is 16.0 GB.
 * TraceAbstraction took 11510.09 ms. Allocated memory was 356.5 MB in the beginning and 551.6 MB in the end (delta: 195.0 MB). Free memory was 280.3 MB in the beginning and 249.2 MB in the end (delta: 31.1 MB). Peak memory consumption was 225.1 MB. Max. memory is 16.0 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 9413.0ms, 85 PlacesBefore, 27 PlacesAfterwards, 80 TransitionsBefore, 21 TransitionsAfterwards, 926 CoEnabledTransitionPairs, 6 FixpointIterations, 32 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 70 TotalNumberOfCompositions, 2219 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 992, positive: 888, positive conditional: 0, positive unconditional: 888, negative: 104, negative conditional: 0, negative unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 612, positive: 577, positive conditional: 0, positive unconditional: 577, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 612, positive: 559, positive conditional: 0, positive unconditional: 559, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 53, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 557, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 530, negative conditional: 0, negative unconditional: 530, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 992, positive: 311, positive conditional: 0, positive unconditional: 311, negative: 69, negative conditional: 0, negative unconditional: 69, unknown: 612, unknown conditional: 0, unknown unconditional: 612] , Statistics on independence cache: Total cache size (in pairs): 59, Positive cache size: 45, Positive conditional cache size: 0, Positive unconditional cache size: 45, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14
  - StatisticsResult: Independence relation benchmarks
    ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 220, positive: 164, positive conditional: 164, positive unconditional: 0, negative: 56, negative conditional: 56, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 181, positive: 164, positive conditional: 164, positive unconditional: 0, negative: 17, negative conditional: 17, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 181, positive: 148, positive conditional: 0, positive unconditional: 148, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 42, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 42, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 13, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 21, positive: 10, positive conditional: 6, positive unconditional: 4, negative: 11, negative conditional: 2, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 409, positive: 152, positive conditional: 126, positive unconditional: 26, negative: 257, negative conditional: 52, negative unconditional: 205, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 181, positive: 115, positive conditional: 0, positive unconditional: 115, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 42, unknown conditional: 0, unknown unconditional: 42] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 39, Positive conditional cache size: 6, Positive unconditional cache size: 33, Negative cache size: 11, Negative conditional cache size: 2, Negative unconditional cache size: 9, SemanticConditionEliminator.Independence Queries: [ total: 72, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 56, negative conditional: 3, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 72, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 56, negative conditional: 3, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 21, positive: 10, positive conditional: 6, positive unconditional: 4, negative: 11, negative conditional: 2, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 409, positive: 152, positive conditional: 126, positive unconditional: 26, negative: 257, negative conditional: 52, negative unconditional: 205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 72, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 54, negative conditional: 1, negative unconditional: 53, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 39, Positive conditional cache size: 6, Positive unconditional cache size: 33, Negative cache size: 11, Negative conditional cache size: 2, Negative unconditional cache size: 9, Eliminated conditions: 53, SemanticConditionEliminator.Independence Queries: [ total: 72, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 56, negative conditional: 3, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 72, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 56, negative conditional: 3, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 21, positive: 10, positive conditional: 6, positive unconditional: 4, negative: 11, negative conditional: 2, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 409, positive: 152, positive conditional: 126, positive unconditional: 26, negative: 257, negative conditional: 52, negative unconditional: 205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 72, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 54, negative conditional: 1, negative unconditional: 53, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 39, Positive conditional cache size: 6, Positive unconditional cache size: 33, Negative cache size: 11, Negative conditional cache size: 2, Negative unconditional cache size: 9, Eliminated conditions: 53, SemanticConditionEliminator.Independence Queries: [ total: 72, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 56, negative conditional: 3, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 72, positive: 16, positive conditional: 16, positive unconditional: 0, negative: 56, negative conditional: 3, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 21, positive: 10, positive conditional: 6, positive unconditional: 4, negative: 11, negative conditional: 2, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 409, positive: 152, positive conditional: 126, positive unconditional: 26, negative: 257, negative conditional: 52, negative unconditional: 205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 72, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 54, negative conditional: 1, negative unconditional: 53, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 50, Positive cache size: 39, Positive conditional cache size: 6, Positive unconditional cache size: 33, Negative cache size: 11, Negative conditional cache size: 2, Negative unconditional cache size: 9, Eliminated conditions: 53 ], Maximal queried relation: 3, Independence queries for same thread: 39
  - CounterExampleResult [Line: 18]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L708]               0  int __unbuffered_cnt = 0;
[L710]               0  int __unbuffered_p1_EAX = 0;
[L711]               0  _Bool main$tmp_guard0;
[L712]               0  _Bool main$tmp_guard1;
[L714]               0  int x = 0;
[L716]               0  int y = 0;
[L717]               0  _Bool y$flush_delayed;
[L718]               0  int y$mem_tmp;
[L719]               0  _Bool y$r_buff0_thd0;
[L720]               0  _Bool y$r_buff0_thd1;
[L721]               0  _Bool y$r_buff0_thd2;
[L722]               0  _Bool y$r_buff1_thd0;
[L723]               0  _Bool y$r_buff1_thd1;
[L724]               0  _Bool y$r_buff1_thd2;
[L725]               0  _Bool y$read_delayed;
[L726]               0  int *y$read_delayed_var;
[L727]               0  int y$w_buff0;
[L728]               0  _Bool y$w_buff0_used;
[L729]               0  int y$w_buff1;
[L730]               0  _Bool y$w_buff1_used;
[L731]               0  _Bool weak$$choice0;
[L732]               0  _Bool weak$$choice2;
[L792]               0  pthread_t t2011;
[L793]  FCALL, FORK  0  pthread_create(&t2011, ((void *)0), P0, ((void *)0))
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0]
[L736]               1  y$w_buff1 = y$w_buff0
[L737]               1  y$w_buff0 = 2
[L738]               1  y$w_buff1_used = y$w_buff0_used
[L739]               1  y$w_buff0_used = (_Bool)1
[L18]   COND FALSE   1  !(!expression)
[L741]               1  y$r_buff1_thd0 = y$r_buff0_thd0
[L742]               1  y$r_buff1_thd1 = y$r_buff0_thd1
[L743]               1  y$r_buff1_thd2 = y$r_buff0_thd2
[L744]               1  y$r_buff0_thd1 = (_Bool)1
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0]
[L747]               1  x = 1
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0]
[L794]               0  pthread_t t2012;
[L795]  FCALL, FORK  0  pthread_create(&t2012, ((void *)0), P1, ((void *)0))
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0]
[L764]               2  __unbuffered_p1_EAX = x
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0]
[L767]               2  y = 1
        VAL             [__unbuffered_cnt=0, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0]
[L750]  EXPR         1  y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y)
[L750]               1  y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y)
[L751]  EXPR         1  y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used
[L751]               1  y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used
[L752]  EXPR         1  y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used
[L752]               1  y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used
[L753]  EXPR         1  y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1
[L753]               1  y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1
[L754]  EXPR         1  y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1
[L754]               1  y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1
[L770]  EXPR         2  y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y)
[L770]  EXPR         2  y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y
[L770]  EXPR         2  y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y)
[L770]               2  y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y)
[L771]  EXPR         2  y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used
[L771]               2  y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used
[L772]  EXPR         2  y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used
[L772]               2  y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used
[L773]  EXPR         2  y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2
[L773]               2  y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2
[L774]  EXPR         2  y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2
[L774]               2  y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2
[L777]               2  __unbuffered_cnt = __unbuffered_cnt + 1
[L779]               2  return 0;
[L757]               1  __unbuffered_cnt = __unbuffered_cnt + 1
[L759]               1  return 0;
[L797]               0  main$tmp_guard0 = __unbuffered_cnt == 2
[L3]    COND FALSE   0  !(!cond)
[L801]  EXPR         0  y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y)
[L801]  EXPR         0  y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y
[L801]  EXPR         0  y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y)
[L801]               0  y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y)
[L802]  EXPR         0  y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used
[L802]               0  y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used
[L803]  EXPR         0  y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used
[L803]               0  y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used
[L804]  EXPR         0  y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0
[L804]               0  y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0
[L805]  EXPR         0  y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0
[L805]               0  y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0
[L808]               0  weak$$choice0 = __VERIFIER_nondet_bool()
[L809]               0  weak$$choice2 = __VERIFIER_nondet_bool()
[L810]               0  y$flush_delayed = weak$$choice2
[L811]               0  y$mem_tmp = y
[L812]  EXPR         0  !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1)
[L812]               0  y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1)
[L813]  EXPR         0  weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0))
[L813]  EXPR         0  !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)
[L813]  EXPR         0  weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0))
[L813]               0  y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0))
[L814]  EXPR         0  weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1))
[L814]  EXPR         0  !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)
[L814]  EXPR         0  weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1))
[L814]               0  y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1))
[L815]  EXPR         0  weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used))
[L815]  EXPR         0  !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)
[L815]  EXPR         0  weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used))
[L815]               0  y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used))
[L816]  EXPR         0  weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0))
[L816]  EXPR         0  !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)
[L816]  EXPR         0  weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0))
[L816]               0  y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0))
[L817]  EXPR         0  weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0))
[L817]  EXPR         0  !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)
[L817]  EXPR         0  weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0))
[L817]               0  y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0))
[L818]  EXPR         0  weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0))
[L818]  EXPR         0  !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)
[L818]  EXPR         0  weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0))
[L818]               0  y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0))
[L819]               0  main$tmp_guard1 = !(y == 2 && __unbuffered_p1_EAX == 1)
[L820]  EXPR         0  y$flush_delayed ? y$mem_tmp : y
[L820]               0  y = y$flush_delayed ? y$mem_tmp : y
[L821]               0  y$flush_delayed = (_Bool)0
[L18]   COND TRUE    0  !expression
[L18]                0  reach_error()
        VAL             [\result={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=50, weak$$choice2=0, x=1, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 3 procedures, 79 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11377.8ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9447.5ms, PartialOrderReductionTime: 785.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.2ms SsaConstructionTime, 328.7ms SatisfiabilityAnalysisTime, 570.2ms InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 482 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
Received shutdown request...