/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-PN-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-lit/qw2004-2.i


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


This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239
[2021-03-25 05:14:31,531 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-03-25 05:14:31,533 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-03-25 05:14:31,557 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-03-25 05:14:31,557 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-03-25 05:14:31,558 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-03-25 05:14:31,559 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-03-25 05:14:31,561 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-03-25 05:14:31,562 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
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[2021-03-25 05:14:31,565 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-03-25 05:14:31,565 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-03-25 05:14:31,566 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-03-25 05:14:31,566 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-03-25 05:14:31,567 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-03-25 05:14:31,568 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-03-25 05:14:31,569 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-03-25 05:14:31,570 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-03-25 05:14:31,571 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-03-25 05:14:31,572 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-03-25 05:14:31,576 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-03-25 05:14:31,576 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-03-25 05:14:31,577 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-03-25 05:14:31,579 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2021-03-25 05:14:31,579 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-03-25 05:14:31,580 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-03-25 05:14:31,580 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-03-25 05:14:31,581 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
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[2021-03-25 05:14:31,582 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-03-25 05:14:31,583 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-03-25 05:14:31,583 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-03-25 05:14:31,584 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-03-25 05:14:31,584 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2021-03-25 05:14:31,585 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2021-03-25 05:14:31,586 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-03-25 05:14:31,595 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-PN-RepeatedVariableLbe.epf
[2021-03-25 05:14:31,625 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-03-25 05:14:31,625 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-03-25 05:14:31,628 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-03-25 05:14:31,628 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-03-25 05:14:31,628 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-03-25 05:14:31,629 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-03-25 05:14:31,629 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-03-25 05:14:31,629 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-03-25 05:14:31,629 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-03-25 05:14:31,629 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-03-25 05:14:31,630 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-03-25 05:14:31,630 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-03-25 05:14:31,630 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-03-25 05:14:31,630 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-03-25 05:14:31,630 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-03-25 05:14:31,630 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-03-25 05:14:31,630 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-03-25 05:14:31,631 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-03-25 05:14:31,631 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-03-25 05:14:31,631 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2021-03-25 05:14:31,631 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-03-25 05:14:31,631 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-03-25 05:14:31,631 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-03-25 05:14:31,631 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-03-25 05:14:31,631 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-03-25 05:14:31,631 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-03-25 05:14:31,632 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-03-25 05:14:31,632 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK
[2021-03-25 05:14:31,632 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2021-03-25 05:14:31,632 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2021-03-25 05:14:31,632 INFO  L138        SettingsManager]:  * Apply repeated Lipton Reduction=true
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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-03-25 05:14:31,907 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-03-25 05:14:31,923 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-03-25 05:14:31,925 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-03-25 05:14:31,926 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-03-25 05:14:31,926 INFO  L275        PluginConnector]: CDTParser initialized
[2021-03-25 05:14:31,927 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-2.i
[2021-03-25 05:14:31,992 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5964cd08/31221dc5013c43378ea9e7a2ac821a0d/FLAG1a7b2562b
[2021-03-25 05:14:32,524 INFO  L306              CDTParser]: Found 1 translation units.
[2021-03-25 05:14:32,524 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2.i
[2021-03-25 05:14:32,534 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5964cd08/31221dc5013c43378ea9e7a2ac821a0d/FLAG1a7b2562b
[2021-03-25 05:14:32,834 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5964cd08/31221dc5013c43378ea9e7a2ac821a0d
[2021-03-25 05:14:32,837 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-03-25 05:14:32,839 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2021-03-25 05:14:32,841 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-03-25 05:14:32,841 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-03-25 05:14:32,844 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-03-25 05:14:32,845 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:14:32" (1/1) ...
[2021-03-25 05:14:32,846 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8393999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:32, skipping insertion in model container
[2021-03-25 05:14:32,846 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.03 05:14:32" (1/1) ...
[2021-03-25 05:14:32,852 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-03-25 05:14:32,895 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-03-25 05:14:33,181 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-lit/qw2004-2.i[30003,30016]
[2021-03-25 05:14:33,202 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-03-25 05:14:33,209 INFO  L203         MainTranslator]: Completed pre-run
[2021-03-25 05:14:33,243 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-lit/qw2004-2.i[30003,30016]
[2021-03-25 05:14:33,255 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-03-25 05:14:33,323 INFO  L208         MainTranslator]: Completed translation
[2021-03-25 05:14:33,328 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:33 WrapperNode
[2021-03-25 05:14:33,329 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-03-25 05:14:33,330 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-03-25 05:14:33,330 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-03-25 05:14:33,330 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-03-25 05:14:33,336 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:33" (1/1) ...
[2021-03-25 05:14:33,363 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:33" (1/1) ...
[2021-03-25 05:14:33,387 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-03-25 05:14:33,388 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-03-25 05:14:33,388 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-03-25 05:14:33,388 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-03-25 05:14:33,395 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:33" (1/1) ...
[2021-03-25 05:14:33,395 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:33" (1/1) ...
[2021-03-25 05:14:33,400 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:33" (1/1) ...
[2021-03-25 05:14:33,400 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:33" (1/1) ...
[2021-03-25 05:14:33,414 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:33" (1/1) ...
[2021-03-25 05:14:33,416 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:33" (1/1) ...
[2021-03-25 05:14:33,417 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:33" (1/1) ...
[2021-03-25 05:14:33,419 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-03-25 05:14:33,419 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-03-25 05:14:33,419 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-03-25 05:14:33,419 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-03-25 05:14:33,420 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:33" (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
[2021-03-25 05:14:33,479 INFO  L130     BoogieDeclarations]: Found specification of procedure BCSP_PnpStop
[2021-03-25 05:14:33,479 INFO  L138     BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop
[2021-03-25 05:14:33,480 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2021-03-25 05:14:33,480 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2021-03-25 05:14:33,480 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-03-25 05:14:33,481 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-03-25 05:14:33,481 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-03-25 05:14:33,481 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2021-03-25 05:14:33,482 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-03-25 05:14:33,482 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-03-25 05:14:33,483 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-03-25 05:14:33,855 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-03-25 05:14:33,856 INFO  L299             CfgBuilder]: Removed 20 assume(true) statements.
[2021-03-25 05:14:33,857 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:14:33 BoogieIcfgContainer
[2021-03-25 05:14:33,857 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-03-25 05:14:33,859 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-03-25 05:14:33,859 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-03-25 05:14:33,861 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-03-25 05:14:33,861 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.03 05:14:32" (1/3) ...
[2021-03-25 05:14:33,862 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb4e8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:14:33, skipping insertion in model container
[2021-03-25 05:14:33,862 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.03 05:14:33" (2/3) ...
[2021-03-25 05:14:33,862 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bb4e8b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 05:14:33, skipping insertion in model container
[2021-03-25 05:14:33,862 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 05:14:33" (3/3) ...
[2021-03-25 05:14:33,863 INFO  L111   eAbstractionObserver]: Analyzing ICFG qw2004-2.i
[2021-03-25 05:14:33,868 INFO  L149   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-03-25 05:14:33,872 INFO  L161   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2021-03-25 05:14:33,872 INFO  L323   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-03-25 05:14:33,892 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,892 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,892 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,892 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,893 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,893 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,893 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,893 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,893 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,894 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,894 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,894 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,894 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,894 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,894 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,895 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,895 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,895 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,895 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,895 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,895 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,896 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,896 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,896 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,896 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,896 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,896 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,897 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,897 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,897 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,897 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,897 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,898 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,898 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,898 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,898 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,898 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,898 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,899 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,899 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,899 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,899 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,899 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,900 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,900 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~lse~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,900 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~lse~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,900 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~lse~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,900 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,901 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~lse~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,901 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,901 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,901 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,901 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,901 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,902 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,902 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,902 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,902 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,902 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,902 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,903 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,903 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,903 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,903 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,905 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,905 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,905 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,905 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~lse~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,906 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,906 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,906 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,906 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,906 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,906 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,906 WARN  L313   ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,907 WARN  L313   ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-03-25 05:14:33,908 INFO  L149    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2021-03-25 05:14:33,923 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2021-03-25 05:14:33,944 INFO  L376      AbstractCegarLoop]: Interprodecural is true
[2021-03-25 05:14:33,944 INFO  L377      AbstractCegarLoop]: Hoare is false
[2021-03-25 05:14:33,944 INFO  L378      AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-03-25 05:14:33,944 INFO  L379      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-03-25 05:14:33,945 INFO  L380      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-03-25 05:14:33,945 INFO  L381      AbstractCegarLoop]: Difference is false
[2021-03-25 05:14:33,945 INFO  L382      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-03-25 05:14:33,945 INFO  L386      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-03-25 05:14:33,959 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 94 places, 96 transitions, 197 flow
[2021-03-25 05:14:34,012 INFO  L129       PetriNetUnfolder]: 6/95 cut-off events.
[2021-03-25 05:14:34,013 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-03-25 05:14:34,025 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 99 conditions, 95 events. 6/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 75. Up to 3 conditions per place. 
[2021-03-25 05:14:34,026 INFO  L82        GeneralOperation]: Start removeDead. Operand has 94 places, 96 transitions, 197 flow
[2021-03-25 05:14:34,030 INFO  L88        GeneralOperation]: Finished RemoveDead, result has has 93 places, 95 transitions, 193 flow
[2021-03-25 05:14:34,031 INFO  L174   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2021-03-25 05:14:34,038 INFO  L137   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 95 transitions, 193 flow
[2021-03-25 05:14:34,042 INFO  L129        LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 95 transitions, 193 flow
[2021-03-25 05:14:34,046 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 93 places, 95 transitions, 193 flow
[2021-03-25 05:14:34,076 INFO  L129       PetriNetUnfolder]: 6/95 cut-off events.
[2021-03-25 05:14:34,076 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-03-25 05:14:34,078 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 99 conditions, 95 events. 6/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 96 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 75. Up to 3 conditions per place. 
[2021-03-25 05:14:34,082 INFO  L142        LiptonReduction]: Number of co-enabled transitions 2500
[2021-03-25 05:14:35,692 INFO  L154        LiptonReduction]: Checked pairs total: 1994
[2021-03-25 05:14:35,692 INFO  L156        LiptonReduction]: Total number of compositions: 75
[2021-03-25 05:14:35,695 INFO  L199   CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1665
[2021-03-25 05:14:35,702 INFO  L129       PetriNetUnfolder]: 3/21 cut-off events.
[2021-03-25 05:14:35,702 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-03-25 05:14:35,703 INFO  L255   CegarLoopForPetriNet]: Found error trace
[2021-03-25 05:14:35,703 INFO  L263   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-03-25 05:14:35,703 INFO  L428      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-25 05:14:35,707 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-25 05:14:35,708 INFO  L82        PathProgramCache]: Analyzing trace with hash 829912263, now seen corresponding path program 1 times
[2021-03-25 05:14:35,715 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-25 05:14:35,715 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639068661]
[2021-03-25 05:14:35,715 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-25 05:14:35,796 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-25 05:14:35,851 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-25 05:14:35,853 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-03-25 05:14:35,854 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-25 05:14:35,854 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-25 05:14:35,859 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-25 05:14:35,859 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-25 05:14:35,863 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-25 05:14:35,864 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-03-25 05:14:35,865 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-25 05:14:35,865 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639068661]
[2021-03-25 05:14:35,866 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-25 05:14:35,866 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-03-25 05:14:35,866 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752232050]
[2021-03-25 05:14:35,873 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-03-25 05:14:35,873 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-25 05:14:35,883 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-03-25 05:14:35,884 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-03-25 05:14:35,886 INFO  L508   CegarLoopForPetriNet]: Number of universal loopers: 145 out of 171
[2021-03-25 05:14:35,889 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 38 transitions, 79 flow. Second operand  has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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)
[2021-03-25 05:14:35,889 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-03-25 05:14:35,889 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 171
[2021-03-25 05:14:35,890 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-03-25 05:14:35,938 INFO  L129       PetriNetUnfolder]: 10/74 cut-off events.
[2021-03-25 05:14:35,938 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2021-03-25 05:14:35,939 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 90 conditions, 74 events. 10/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 269 event pairs, 0 based on Foata normal form. 6/66 useless extension candidates. Maximal degree in co-relation 77. Up to 6 conditions per place. 
[2021-03-25 05:14:35,940 INFO  L132   encePairwiseOnDemand]: 164/171 looper letters, 5 selfloop transitions, 5 changer transitions 0/38 dead transitions.
[2021-03-25 05:14:35,940 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 38 transitions, 99 flow
[2021-03-25 05:14:35,940 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-03-25 05:14:35,942 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2021-03-25 05:14:35,950 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 742 transitions.
[2021-03-25 05:14:35,953 INFO  L553   CegarLoopForPetriNet]: DFA transition density 0.8678362573099415
[2021-03-25 05:14:35,954 INFO  L72            ComplementDD]: Start complementDD. Operand 5 states and 742 transitions.
[2021-03-25 05:14:35,954 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 5 states and 742 transitions.
[2021-03-25 05:14:35,956 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-03-25 05:14:35,958 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 742 transitions.
[2021-03-25 05:14:35,962 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 6 states, 5 states have (on average 148.4) internal successors, (742), 5 states have internal predecessors, (742), 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)
[2021-03-25 05:14:35,968 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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)
[2021-03-25 05:14:35,969 INFO  L81            ComplementDD]: Finished complementDD. Result  has 6 states, 6 states have (on average 171.0) internal successors, (1026), 6 states have internal predecessors, (1026), 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)
[2021-03-25 05:14:35,971 INFO  L185             Difference]: Start difference. First operand has 36 places, 38 transitions, 79 flow. Second operand 5 states and 742 transitions.
[2021-03-25 05:14:35,972 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 38 transitions, 99 flow
[2021-03-25 05:14:35,973 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 38 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places.
[2021-03-25 05:14:35,975 INFO  L241             Difference]: Finished difference. Result has 41 places, 37 transitions, 104 flow
[2021-03-25 05:14:35,976 INFO  L326   CegarLoopForPetriNet]: {PETRI_ALPHABET=171, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=104, PETRI_PLACES=41, PETRI_TRANSITIONS=37}
[2021-03-25 05:14:35,977 INFO  L343   CegarLoopForPetriNet]: 36 programPoint places, 5 predicate places.
[2021-03-25 05:14:35,977 INFO  L174   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2021-03-25 05:14:35,977 INFO  L137   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 37 transitions, 104 flow
[2021-03-25 05:14:35,978 INFO  L129        LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 37 transitions, 104 flow
[2021-03-25 05:14:35,978 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 41 places, 37 transitions, 104 flow
[2021-03-25 05:14:35,985 INFO  L129       PetriNetUnfolder]: 8/72 cut-off events.
[2021-03-25 05:14:35,985 INFO  L130       PetriNetUnfolder]: For 6/6 co-relation queries the response was YES.
[2021-03-25 05:14:35,986 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 93 conditions, 72 events. 8/72 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 262 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 78. Up to 6 conditions per place. 
[2021-03-25 05:14:35,987 INFO  L142        LiptonReduction]: Number of co-enabled transitions 390
[2021-03-25 05:14:36,921 INFO  L154        LiptonReduction]: Checked pairs total: 492
[2021-03-25 05:14:36,921 INFO  L156        LiptonReduction]: Total number of compositions: 18
[2021-03-25 05:14:36,922 INFO  L199   CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 945
[2021-03-25 05:14:36,923 INFO  L480      AbstractCegarLoop]: Abstraction has has 27 places, 22 transitions, 74 flow
[2021-03-25 05:14:36,923 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 4 states, 4 states have (on average 146.0) internal successors, (584), 4 states have internal predecessors, (584), 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)
[2021-03-25 05:14:36,923 INFO  L255   CegarLoopForPetriNet]: Found error trace
[2021-03-25 05:14:36,923 INFO  L263   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-03-25 05:14:36,924 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-03-25 05:14:36,924 INFO  L428      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-25 05:14:36,925 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-25 05:14:36,925 INFO  L82        PathProgramCache]: Analyzing trace with hash -22949499, now seen corresponding path program 1 times
[2021-03-25 05:14:36,925 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-25 05:14:36,925 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900279843]
[2021-03-25 05:14:36,926 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-25 05:14:36,959 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-25 05:14:37,009 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-25 05:14:37,010 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-03-25 05:14:37,010 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-25 05:14:37,011 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5
[2021-03-25 05:14:37,013 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-25 05:14:37,014 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-03-25 05:14:37,014 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-25 05:14:37,014 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900279843]
[2021-03-25 05:14:37,014 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-25 05:14:37,014 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-03-25 05:14:37,015 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573009963]
[2021-03-25 05:14:37,015 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-03-25 05:14:37,016 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-25 05:14:37,016 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-03-25 05:14:37,016 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-03-25 05:14:37,018 INFO  L508   CegarLoopForPetriNet]: Number of universal loopers: 161 out of 189
[2021-03-25 05:14:37,019 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 22 transitions, 74 flow. Second operand  has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 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)
[2021-03-25 05:14:37,019 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-03-25 05:14:37,019 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 189
[2021-03-25 05:14:37,019 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-03-25 05:14:37,037 INFO  L129       PetriNetUnfolder]: 5/38 cut-off events.
[2021-03-25 05:14:37,037 INFO  L130       PetriNetUnfolder]: For 8/8 co-relation queries the response was YES.
[2021-03-25 05:14:37,037 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 70 conditions, 38 events. 5/38 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 118 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 57. Up to 9 conditions per place. 
[2021-03-25 05:14:37,037 INFO  L132   encePairwiseOnDemand]: 187/189 looper letters, 6 selfloop transitions, 1 changer transitions 0/23 dead transitions.
[2021-03-25 05:14:37,038 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 23 transitions, 90 flow
[2021-03-25 05:14:37,042 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-03-25 05:14:37,042 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2021-03-25 05:14:37,043 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 491 transitions.
[2021-03-25 05:14:37,044 INFO  L553   CegarLoopForPetriNet]: DFA transition density 0.8659611992945326
[2021-03-25 05:14:37,044 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 491 transitions.
[2021-03-25 05:14:37,044 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 491 transitions.
[2021-03-25 05:14:37,044 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-03-25 05:14:37,044 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 491 transitions.
[2021-03-25 05:14:37,045 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 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)
[2021-03-25 05:14:37,047 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 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)
[2021-03-25 05:14:37,047 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 189.0) internal successors, (756), 4 states have internal predecessors, (756), 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)
[2021-03-25 05:14:37,047 INFO  L185             Difference]: Start difference. First operand has 27 places, 22 transitions, 74 flow. Second operand 3 states and 491 transitions.
[2021-03-25 05:14:37,047 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 23 transitions, 90 flow
[2021-03-25 05:14:37,048 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 23 transitions, 90 flow, removed 0 selfloop flow, removed 0 redundant places.
[2021-03-25 05:14:37,048 INFO  L241             Difference]: Finished difference. Result has 30 places, 22 transitions, 79 flow
[2021-03-25 05:14:37,049 INFO  L326   CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=79, PETRI_PLACES=30, PETRI_TRANSITIONS=22}
[2021-03-25 05:14:37,049 INFO  L343   CegarLoopForPetriNet]: 36 programPoint places, -6 predicate places.
[2021-03-25 05:14:37,049 INFO  L174   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2021-03-25 05:14:37,049 INFO  L137   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 30 places, 22 transitions, 79 flow
[2021-03-25 05:14:37,049 INFO  L129        LiptonReduction]: Starting Lipton reduction on Petri net that has 30 places, 22 transitions, 79 flow
[2021-03-25 05:14:37,050 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 30 places, 22 transitions, 79 flow
[2021-03-25 05:14:37,053 INFO  L129       PetriNetUnfolder]: 5/38 cut-off events.
[2021-03-25 05:14:37,053 INFO  L130       PetriNetUnfolder]: For 10/10 co-relation queries the response was YES.
[2021-03-25 05:14:37,053 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 64 conditions, 38 events. 5/38 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 112 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 50. Up to 6 conditions per place. 
[2021-03-25 05:14:37,054 INFO  L142        LiptonReduction]: Number of co-enabled transitions 134
[2021-03-25 05:14:37,185 WARN  L205               SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76
[2021-03-25 05:14:37,369 WARN  L205               SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76
[2021-03-25 05:14:37,419 INFO  L154        LiptonReduction]: Checked pairs total: 218
[2021-03-25 05:14:37,419 INFO  L156        LiptonReduction]: Total number of compositions: 1
[2021-03-25 05:14:37,420 INFO  L199   CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 371
[2021-03-25 05:14:37,420 INFO  L480      AbstractCegarLoop]: Abstraction has has 29 places, 21 transitions, 77 flow
[2021-03-25 05:14:37,421 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 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)
[2021-03-25 05:14:37,421 INFO  L255   CegarLoopForPetriNet]: Found error trace
[2021-03-25 05:14:37,421 INFO  L263   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2021-03-25 05:14:37,421 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-03-25 05:14:37,421 INFO  L428      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-25 05:14:37,421 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-25 05:14:37,422 INFO  L82        PathProgramCache]: Analyzing trace with hash 1977793235, now seen corresponding path program 1 times
[2021-03-25 05:14:37,422 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-25 05:14:37,422 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146276408]
[2021-03-25 05:14:37,422 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-25 05:14:37,435 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-25 05:14:37,463 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-25 05:14:37,463 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-03-25 05:14:37,464 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-25 05:14:37,471 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-25 05:14:37,473 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-25 05:14:37,473 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146276408]
[2021-03-25 05:14:37,473 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-25 05:14:37,473 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-03-25 05:14:37,473 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111919044]
[2021-03-25 05:14:37,473 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-03-25 05:14:37,474 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-25 05:14:37,474 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-03-25 05:14:37,474 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-03-25 05:14:37,475 INFO  L508   CegarLoopForPetriNet]: Number of universal loopers: 162 out of 190
[2021-03-25 05:14:37,475 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 21 transitions, 77 flow. Second operand  has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 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)
[2021-03-25 05:14:37,475 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-03-25 05:14:37,476 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 190
[2021-03-25 05:14:37,476 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-03-25 05:14:37,486 INFO  L129       PetriNetUnfolder]: 10/43 cut-off events.
[2021-03-25 05:14:37,486 INFO  L130       PetriNetUnfolder]: For 14/15 co-relation queries the response was YES.
[2021-03-25 05:14:37,487 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 84 conditions, 43 events. 10/43 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 142 event pairs, 0 based on Foata normal form. 3/41 useless extension candidates. Maximal degree in co-relation 69. Up to 11 conditions per place. 
[2021-03-25 05:14:37,487 INFO  L132   encePairwiseOnDemand]: 187/190 looper letters, 3 selfloop transitions, 2 changer transitions 0/22 dead transitions.
[2021-03-25 05:14:37,487 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 22 transitions, 89 flow
[2021-03-25 05:14:37,487 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-03-25 05:14:37,488 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3 states.
[2021-03-25 05:14:37,488 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 492 transitions.
[2021-03-25 05:14:37,489 INFO  L553   CegarLoopForPetriNet]: DFA transition density 0.8631578947368421
[2021-03-25 05:14:37,489 INFO  L72            ComplementDD]: Start complementDD. Operand 3 states and 492 transitions.
[2021-03-25 05:14:37,489 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 3 states and 492 transitions.
[2021-03-25 05:14:37,489 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-03-25 05:14:37,489 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 492 transitions.
[2021-03-25 05:14:37,490 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 4 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 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)
[2021-03-25 05:14:37,491 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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)
[2021-03-25 05:14:37,492 INFO  L81            ComplementDD]: Finished complementDD. Result  has 4 states, 4 states have (on average 190.0) internal successors, (760), 4 states have internal predecessors, (760), 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)
[2021-03-25 05:14:37,492 INFO  L185             Difference]: Start difference. First operand has 29 places, 21 transitions, 77 flow. Second operand 3 states and 492 transitions.
[2021-03-25 05:14:37,492 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 22 transitions, 89 flow
[2021-03-25 05:14:37,493 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 22 transitions, 88 flow, removed 0 selfloop flow, removed 1 redundant places.
[2021-03-25 05:14:37,493 INFO  L241             Difference]: Finished difference. Result has 31 places, 21 transitions, 84 flow
[2021-03-25 05:14:37,493 INFO  L326   CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=84, PETRI_PLACES=31, PETRI_TRANSITIONS=21}
[2021-03-25 05:14:37,494 INFO  L343   CegarLoopForPetriNet]: 36 programPoint places, -5 predicate places.
[2021-03-25 05:14:37,494 INFO  L174   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2021-03-25 05:14:37,494 INFO  L137   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 31 places, 21 transitions, 84 flow
[2021-03-25 05:14:37,494 INFO  L129        LiptonReduction]: Starting Lipton reduction on Petri net that has 31 places, 21 transitions, 84 flow
[2021-03-25 05:14:37,494 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 31 places, 21 transitions, 84 flow
[2021-03-25 05:14:37,498 INFO  L129       PetriNetUnfolder]: 6/37 cut-off events.
[2021-03-25 05:14:37,498 INFO  L130       PetriNetUnfolder]: For 9/10 co-relation queries the response was YES.
[2021-03-25 05:14:37,498 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 71 conditions, 37 events. 6/37 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 108 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 56. Up to 6 conditions per place. 
[2021-03-25 05:14:37,498 INFO  L142        LiptonReduction]: Number of co-enabled transitions 120
[2021-03-25 05:14:37,500 INFO  L154        LiptonReduction]: Checked pairs total: 103
[2021-03-25 05:14:37,500 INFO  L156        LiptonReduction]: Total number of compositions: 0
[2021-03-25 05:14:37,500 INFO  L199   CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6
[2021-03-25 05:14:37,501 INFO  L480      AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 84 flow
[2021-03-25 05:14:37,501 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 3 states, 3 states have (on average 163.0) internal successors, (489), 3 states have internal predecessors, (489), 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)
[2021-03-25 05:14:37,501 INFO  L255   CegarLoopForPetriNet]: Found error trace
[2021-03-25 05:14:37,501 INFO  L263   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-03-25 05:14:37,501 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-03-25 05:14:37,501 INFO  L428      AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-25 05:14:37,501 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-25 05:14:37,502 INFO  L82        PathProgramCache]: Analyzing trace with hash 2108314959, now seen corresponding path program 1 times
[2021-03-25 05:14:37,502 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-25 05:14:37,502 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345446124]
[2021-03-25 05:14:37,502 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-25 05:14:37,513 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-03-25 05:14:37,531 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-25 05:14:37,531 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-25 05:14:37,534 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-25 05:14:37,534 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3
[2021-03-25 05:14:37,537 INFO  L142       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size
[2021-03-25 05:14:37,538 INFO  L147       QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1
[2021-03-25 05:14:37,538 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-03-25 05:14:37,538 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345446124]
[2021-03-25 05:14:37,538 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-03-25 05:14:37,538 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-03-25 05:14:37,539 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211880834]
[2021-03-25 05:14:37,539 INFO  L460      AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-03-25 05:14:37,539 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-03-25 05:14:37,539 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-03-25 05:14:37,540 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-03-25 05:14:37,541 INFO  L508   CegarLoopForPetriNet]: Number of universal loopers: 154 out of 190
[2021-03-25 05:14:37,544 INFO  L92    encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 84 flow. Second operand  has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 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)
[2021-03-25 05:14:37,544 INFO  L101   encePairwiseOnDemand]: Universal subtrahend loopers provided by user.
[2021-03-25 05:14:37,544 INFO  L102   encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 190
[2021-03-25 05:14:37,545 INFO  L74            FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand
[2021-03-25 05:14:37,587 INFO  L129       PetriNetUnfolder]: 21/71 cut-off events.
[2021-03-25 05:14:37,587 INFO  L130       PetriNetUnfolder]: For 11/12 co-relation queries the response was YES.
[2021-03-25 05:14:37,588 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 159 conditions, 71 events. 21/71 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 292 event pairs, 0 based on Foata normal form. 4/57 useless extension candidates. Maximal degree in co-relation 141. Up to 36 conditions per place. 
[2021-03-25 05:14:37,589 INFO  L132   encePairwiseOnDemand]: 185/190 looper letters, 3 selfloop transitions, 2 changer transitions 13/27 dead transitions.
[2021-03-25 05:14:37,589 INFO  L138   encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 27 transitions, 124 flow
[2021-03-25 05:14:37,589 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-03-25 05:14:37,589 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 5 states.
[2021-03-25 05:14:37,590 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 786 transitions.
[2021-03-25 05:14:37,591 INFO  L553   CegarLoopForPetriNet]: DFA transition density 0.8273684210526315
[2021-03-25 05:14:37,591 INFO  L72            ComplementDD]: Start complementDD. Operand 5 states and 786 transitions.
[2021-03-25 05:14:37,591 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 5 states and 786 transitions.
[2021-03-25 05:14:37,592 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-03-25 05:14:37,592 INFO  L117    ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 786 transitions.
[2021-03-25 05:14:37,594 INFO  L343    DoubleDeckerVisitor]: Before removal of dead ends  has 6 states, 5 states have (on average 157.2) internal successors, (786), 5 states have internal predecessors, (786), 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)
[2021-03-25 05:14:37,595 INFO  L131    ReachableStatesCopy]: Finished reachableStatesCopy Result  has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 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)
[2021-03-25 05:14:37,596 INFO  L81            ComplementDD]: Finished complementDD. Result  has 6 states, 6 states have (on average 190.0) internal successors, (1140), 6 states have internal predecessors, (1140), 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)
[2021-03-25 05:14:37,596 INFO  L185             Difference]: Start difference. First operand has 31 places, 21 transitions, 84 flow. Second operand 5 states and 786 transitions.
[2021-03-25 05:14:37,596 INFO  L82        GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 27 transitions, 124 flow
[2021-03-25 05:14:37,598 INFO  L88        GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 27 transitions, 120 flow, removed 0 selfloop flow, removed 2 redundant places.
[2021-03-25 05:14:37,598 INFO  L241             Difference]: Finished difference. Result has 35 places, 14 transitions, 68 flow
[2021-03-25 05:14:37,598 INFO  L326   CegarLoopForPetriNet]: {PETRI_ALPHABET=190, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=68, PETRI_PLACES=35, PETRI_TRANSITIONS=14}
[2021-03-25 05:14:37,598 INFO  L343   CegarLoopForPetriNet]: 36 programPoint places, -1 predicate places.
[2021-03-25 05:14:37,599 INFO  L174   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2021-03-25 05:14:37,599 INFO  L137   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 14 transitions, 68 flow
[2021-03-25 05:14:37,601 INFO  L129        LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 14 transitions, 68 flow
[2021-03-25 05:14:37,601 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 28 places, 14 transitions, 68 flow
[2021-03-25 05:14:37,605 INFO  L129       PetriNetUnfolder]: 1/20 cut-off events.
[2021-03-25 05:14:37,605 INFO  L130       PetriNetUnfolder]: For 8/8 co-relation queries the response was YES.
[2021-03-25 05:14:37,608 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 57 conditions, 20 events. 1/20 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 34 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 40. Up to 5 conditions per place. 
[2021-03-25 05:14:37,608 INFO  L142        LiptonReduction]: Number of co-enabled transitions 36
[2021-03-25 05:14:37,728 INFO  L154        LiptonReduction]: Checked pairs total: 80
[2021-03-25 05:14:37,728 INFO  L156        LiptonReduction]: Total number of compositions: 2
[2021-03-25 05:14:37,729 INFO  L199   CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 130
[2021-03-25 05:14:37,729 INFO  L480      AbstractCegarLoop]: Abstraction has has 26 places, 12 transitions, 64 flow
[2021-03-25 05:14:37,729 INFO  L481      AbstractCegarLoop]: Interpolant automaton has  has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 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)
[2021-03-25 05:14:37,729 INFO  L255   CegarLoopForPetriNet]: Found error trace
[2021-03-25 05:14:37,730 INFO  L263   CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-03-25 05:14:37,730 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-03-25 05:14:37,730 INFO  L428      AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-03-25 05:14:37,730 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-03-25 05:14:37,730 INFO  L82        PathProgramCache]: Analyzing trace with hash 640285750, now seen corresponding path program 1 times
[2021-03-25 05:14:37,730 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-03-25 05:14:37,730 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010013144]
[2021-03-25 05:14:37,730 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-03-25 05:14:37,741 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-03-25 05:14:37,742 INFO  L223             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-03-25 05:14:37,755 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-03-25 05:14:37,756 INFO  L223             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-03-25 05:14:37,778 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-03-25 05:14:37,779 INFO  L634         BasicCegarLoop]: Counterexample might be feasible
[2021-03-25 05:14:37,779 WARN  L517      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-03-25 05:14:37,811 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 05:14:37 BasicIcfg
[2021-03-25 05:14:37,811 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-03-25 05:14:37,813 INFO  L168              Benchmark]: Toolchain (without parser) took 4973.60 ms. Allocated memory was 364.9 MB in the beginning and 438.3 MB in the end (delta: 73.4 MB). Free memory was 328.2 MB in the beginning and 319.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 84.0 MB. Max. memory is 16.0 GB.
[2021-03-25 05:14:37,813 INFO  L168              Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 364.9 MB. Free memory was 346.2 MB in the beginning and 346.1 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB.
[2021-03-25 05:14:37,813 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 487.77 ms. Allocated memory is still 364.9 MB. Free memory was 328.0 MB in the beginning and 326.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB.
[2021-03-25 05:14:37,814 INFO  L168              Benchmark]: Boogie Procedure Inliner took 57.78 ms. Allocated memory is still 364.9 MB. Free memory was 326.8 MB in the beginning and 324.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
[2021-03-25 05:14:37,814 INFO  L168              Benchmark]: Boogie Preprocessor took 30.54 ms. Allocated memory is still 364.9 MB. Free memory was 324.7 MB in the beginning and 323.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
[2021-03-25 05:14:37,815 INFO  L168              Benchmark]: RCFGBuilder took 438.23 ms. Allocated memory is still 364.9 MB. Free memory was 323.6 MB in the beginning and 296.4 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB.
[2021-03-25 05:14:37,815 INFO  L168              Benchmark]: TraceAbstraction took 3952.95 ms. Allocated memory was 364.9 MB in the beginning and 438.3 MB in the end (delta: 73.4 MB). Free memory was 295.3 MB in the beginning and 319.6 MB in the end (delta: -24.3 MB). Peak memory consumption was 51.2 MB. Max. memory is 16.0 GB.
[2021-03-25 05:14:37,821 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.52 ms. Allocated memory is still 364.9 MB. Free memory was 346.2 MB in the beginning and 346.1 MB in the end (delta: 76.2 kB). There was no memory consumed. Max. memory is 16.0 GB.
 * CACSL2BoogieTranslator took 487.77 ms. Allocated memory is still 364.9 MB. Free memory was 328.0 MB in the beginning and 326.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.0 GB.
 * Boogie Procedure Inliner took 57.78 ms. Allocated memory is still 364.9 MB. Free memory was 326.8 MB in the beginning and 324.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
 * Boogie Preprocessor took 30.54 ms. Allocated memory is still 364.9 MB. Free memory was 324.7 MB in the beginning and 323.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
 * RCFGBuilder took 438.23 ms. Allocated memory is still 364.9 MB. Free memory was 323.6 MB in the beginning and 296.4 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB.
 * TraceAbstraction took 3952.95 ms. Allocated memory was 364.9 MB in the beginning and 438.3 MB in the end (delta: 73.4 MB). Free memory was 295.3 MB in the beginning and 319.6 MB in the end (delta: -24.3 MB). Peak memory consumption was 51.2 MB. Max. memory is 16.0 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 1650.2ms, 93 PlacesBefore, 36 PlacesAfterwards, 95 TransitionsBefore, 38 TransitionsAfterwards, 2500 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 0 ChoiceCompositions, 75 TotalNumberOfCompositions, 1994 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1744, positive: 1719, positive conditional: 0, positive unconditional: 1719, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1255, positive: 1239, positive conditional: 0, positive unconditional: 1239, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1255, positive: 1239, positive conditional: 0, positive unconditional: 1239, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1744, positive: 480, positive conditional: 0, positive unconditional: 480, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 1255, unknown conditional: 0, unknown unconditional: 1255] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 85, Positive conditional cache size: 0, Positive unconditional cache size: 85, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 943.8ms, 41 PlacesBefore, 27 PlacesAfterwards, 37 TransitionsBefore, 22 TransitionsAfterwards, 390 CoEnabledTransitionPairs, 4 FixpointIterations, 4 TrivialSequentialCompositions, 13 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 18 TotalNumberOfCompositions, 492 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 296, positive: 266, positive conditional: 0, positive unconditional: 266, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 99, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 99, positive: 94, positive conditional: 0, positive unconditional: 94, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 296, positive: 172, positive conditional: 0, positive unconditional: 172, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 99, unknown conditional: 0, unknown unconditional: 99] , Statistics on independence cache: Total cache size (in pairs): 30, Positive cache size: 27, Positive conditional cache size: 0, Positive unconditional cache size: 27, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 370.0ms, 30 PlacesBefore, 29 PlacesAfterwards, 22 TransitionsBefore, 21 TransitionsAfterwards, 134 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 218 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 117, positive: 91, positive conditional: 0, positive unconditional: 91, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 16, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 16, positive: 11, positive conditional: 0, positive unconditional: 11, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 117, positive: 80, positive conditional: 0, positive unconditional: 80, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 16, unknown conditional: 0, unknown unconditional: 16] , Statistics on independence cache: Total cache size (in pairs): 46, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 5.8ms, 31 PlacesBefore, 31 PlacesAfterwards, 21 TransitionsBefore, 21 TransitionsAfterwards, 120 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 103 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 53, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 53, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 49, Positive cache size: 41, Positive conditional cache size: 0, Positive unconditional cache size: 41, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    Lipton Reduction Statistics: ReductionTime: 128.3ms, 35 PlacesBefore, 26 PlacesAfterwards, 14 TransitionsBefore, 12 TransitionsAfterwards, 36 CoEnabledTransitionPairs, 3 FixpointIterations, 0 TrivialSequentialCompositions, 2 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 80 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 50, positive: 32, positive conditional: 0, positive unconditional: 32, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 50, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , Statistics on independence cache: Total cache size (in pairs): 26, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5
  - CounterExampleResult [Line: 690]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L697]               0  volatile int stoppingFlag;
[L698]               0  volatile int pendingIo;
[L699]               0  volatile int stoppingEvent;
[L700]               0  volatile int stopped;
[L755]               0  pthread_t t;
[L756]               0  pendingIo = 1
[L757]               0  stoppingFlag = 0
[L758]               0  stoppingEvent = 0
[L759]               0  stopped = 0
[L760]  FCALL, FORK  0  pthread_create(&t, 0, BCSP_PnpStop, 0)
        VAL             [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0]
[L734]               0  int status;
[L703]               0  int lsf = stoppingFlag;
        VAL             [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0]
[L744]               1  stoppingFlag = 1
[L725]               1  int pending;
[L719]               1  pendingIo--
[L720]               1  int tmp = pendingIo;
        VAL             [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1]
[L722]               1  return tmp;
[L726]               1  pending = dec()
[L727]  COND TRUE    1  pending == 0
[L729]               1  stoppingEvent = 1
        VAL             [pendingIo=0, stopped=0, stoppingEvent=1, stoppingFlag=1]
[L748]               1  int lse = stoppingEvent;
        VAL             [pendingIo=0, stopped=0, stoppingEvent=1, stoppingFlag=1]
[L686]  COND FALSE   1  !(!cond)
[L751]               1  stopped = 1
[L752]               1  return 0;
[L705]  COND FALSE   0  !(\read(lsf))
[L709]               0  int lp = pendingIo;
        VAL             [pendingIo=0, stopped=1, stoppingEvent=1, stoppingFlag=1]
[L712]               0  pendingIo = lp + 1
[L715]               0  return 0;
[L735]               0  status = BCSP_IoIncrement()
[L736]  COND TRUE    0  status == 0
[L689]  COND TRUE    0  !(cond)
[L690]               0  reach_error()
        VAL             [pendingIo=1, stopped=1, stoppingEvent=1, stoppingFlag=1]

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 2 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.9ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 3843.6ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 207.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1753.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 21 SDtfs, 11 SDslu, 11 SDs, 0 SdLazy, 32 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 32.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=104occurred in iteration=1, InterpolantAutomatonStates: 16, 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: 9.6ms SsaConstructionTime, 61.0ms SatisfiabilityAnalysisTime, 183.3ms InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...