/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-lit/sssc12.i


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


This is Ultimate 0.1.25-b09bf87
[2020-10-16 11:23:21,306 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-16 11:23:21,309 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-16 11:23:21,344 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-16 11:23:21,344 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-16 11:23:21,345 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
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[2020-10-16 11:23:21,357 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-16 11:23:21,358 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-16 11:23:21,359 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-16 11:23:21,361 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-16 11:23:21,363 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-16 11:23:21,364 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-16 11:23:21,365 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-16 11:23:21,366 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-16 11:23:21,368 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2020-10-16 11:23:21,376 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-10-16 11:23:21,378 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-10-16 11:23:21,405 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-16 11:23:21,406 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-16 11:23:21,407 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-16 11:23:21,407 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-16 11:23:21,407 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-16 11:23:21,407 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-16 11:23:21,407 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-16 11:23:21,408 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-16 11:23:21,408 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-16 11:23:21,408 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-16 11:23:21,408 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-16 11:23:21,408 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-16 11:23:21,409 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-16 11:23:21,409 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-16 11:23:21,409 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-16 11:23:21,409 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-16 11:23:21,409 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-16 11:23:21,410 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-16 11:23:21,410 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-16 11:23:21,410 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-16 11:23:21,410 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-16 11:23:21,410 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-16 11:23:21,411 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-16 11:23:21,411 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-10-16 11:23:21,411 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-16 11:23:21,411 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-16 11:23:21,411 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-16 11:23:21,411 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-16 11:23:21,412 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-10-16 11:23:21,412 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2020-10-16 11:23:21,722 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-16 11:23:21,736 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-16 11:23:21,741 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-16 11:23:21,742 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-16 11:23:21,745 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-16 11:23:21,746 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/sssc12.i
[2020-10-16 11:23:21,811 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9414d251/b458ea2a2ff44ea2a6b597447aeb8628/FLAG2577c3c76
[2020-10-16 11:23:22,397 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-16 11:23:22,398 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-lit/sssc12.i
[2020-10-16 11:23:22,421 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9414d251/b458ea2a2ff44ea2a6b597447aeb8628/FLAG2577c3c76
[2020-10-16 11:23:22,680 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a9414d251/b458ea2a2ff44ea2a6b597447aeb8628
[2020-10-16 11:23:22,690 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-16 11:23:22,692 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2020-10-16 11:23:22,693 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-16 11:23:22,693 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-16 11:23:22,697 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-16 11:23:22,698 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:23:22" (1/1) ...
[2020-10-16 11:23:22,701 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e07f4ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:22, skipping insertion in model container
[2020-10-16 11:23:22,702 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:23:22" (1/1) ...
[2020-10-16 11:23:22,710 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-16 11:23:22,772 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-16 11:23:23,354 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-16 11:23:23,368 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-16 11:23:23,447 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-16 11:23:23,589 INFO  L208         MainTranslator]: Completed translation
[2020-10-16 11:23:23,590 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:23 WrapperNode
[2020-10-16 11:23:23,591 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-16 11:23:23,592 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-10-16 11:23:23,593 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-10-16 11:23:23,593 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2020-10-16 11:23:23,602 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:23" (1/1) ...
[2020-10-16 11:23:23,648 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:23" (1/1) ...
[2020-10-16 11:23:23,681 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-10-16 11:23:23,681 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-16 11:23:23,682 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-16 11:23:23,682 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-16 11:23:23,692 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:23" (1/1) ...
[2020-10-16 11:23:23,692 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:23" (1/1) ...
[2020-10-16 11:23:23,695 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:23" (1/1) ...
[2020-10-16 11:23:23,696 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:23" (1/1) ...
[2020-10-16 11:23:23,704 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:23" (1/1) ...
[2020-10-16 11:23:23,709 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:23" (1/1) ...
[2020-10-16 11:23:23,712 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:23" (1/1) ...
[2020-10-16 11:23:23,716 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-16 11:23:23,716 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-16 11:23:23,716 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-16 11:23:23,717 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-16 11:23:23,718 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:23" (1/1) ...
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-16 11:23:23,791 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-10-16 11:23:23,793 INFO  L130     BoogieDeclarations]: Found specification of procedure thr
[2020-10-16 11:23:23,793 INFO  L138     BoogieDeclarations]: Found implementation of procedure thr
[2020-10-16 11:23:23,793 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-16 11:23:23,794 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-16 11:23:23,794 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-10-16 11:23:23,795 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-16 11:23:23,795 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-10-16 11:23:23,796 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-16 11:23:23,797 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-16 11:23:23,799 WARN  L208             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2020-10-16 11:23:24,242 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-16 11:23:24,242 INFO  L298             CfgBuilder]: Removed 18 assume(true) statements.
[2020-10-16 11:23:24,245 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:23:24 BoogieIcfgContainer
[2020-10-16 11:23:24,245 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-16 11:23:24,246 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-16 11:23:24,247 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-16 11:23:24,250 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-16 11:23:24,251 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:23:22" (1/3) ...
[2020-10-16 11:23:24,252 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4e6d84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:23:24, skipping insertion in model container
[2020-10-16 11:23:24,252 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:23:23" (2/3) ...
[2020-10-16 11:23:24,252 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c4e6d84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:23:24, skipping insertion in model container
[2020-10-16 11:23:24,253 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:23:24" (3/3) ...
[2020-10-16 11:23:24,258 INFO  L111   eAbstractionObserver]: Analyzing ICFG sssc12.i
[2020-10-16 11:23:24,270 WARN  L153   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-10-16 11:23:24,270 INFO  L164   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-10-16 11:23:24,277 INFO  L176   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-16 11:23:24,278 INFO  L348   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-10-16 11:23:24,304 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,305 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,305 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,305 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,306 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,306 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,306 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,306 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,307 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,307 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,307 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,308 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,308 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,308 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,309 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,309 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,309 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,309 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,309 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,310 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,310 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,310 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,311 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,311 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,311 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,311 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,312 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,312 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,312 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,313 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,313 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,317 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,318 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,318 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,318 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,318 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,319 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,319 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,319 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,319 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,320 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:24,324 INFO  L149    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2020-10-16 11:23:24,338 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2020-10-16 11:23:24,362 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-10-16 11:23:24,362 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-10-16 11:23:24,362 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-10-16 11:23:24,363 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-16 11:23:24,363 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-16 11:23:24,363 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-10-16 11:23:24,363 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-16 11:23:24,363 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-16 11:23:24,393 INFO  L129   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2020-10-16 11:23:24,396 INFO  L144   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 61 transitions, 127 flow
[2020-10-16 11:23:24,399 INFO  L111        LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 61 transitions, 127 flow
[2020-10-16 11:23:24,401 INFO  L71            FinitePrefix]: Start finitePrefix. Operand has 58 places, 61 transitions, 127 flow
[2020-10-16 11:23:24,440 INFO  L129       PetriNetUnfolder]: 7/70 cut-off events.
[2020-10-16 11:23:24,441 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-10-16 11:23:24,447 INFO  L80            FinitePrefix]: Finished finitePrefix Result has 75 conditions, 70 events. 7/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/60 useless extension candidates. Maximal degree in co-relation 36. Up to 4 conditions per place. 
[2020-10-16 11:23:24,452 INFO  L117        LiptonReduction]: Number of co-enabled transitions 572
[2020-10-16 11:23:25,677 WARN  L193               SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55
[2020-10-16 11:23:25,843 WARN  L193               SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45
[2020-10-16 11:23:26,149 WARN  L193               SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66
[2020-10-16 11:23:26,231 INFO  L132        LiptonReduction]: Checked pairs total: 458
[2020-10-16 11:23:26,232 INFO  L134        LiptonReduction]: Total number of compositions: 64
[2020-10-16 11:23:26,238 INFO  L100   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 12 places, 10 transitions, 25 flow
[2020-10-16 11:23:26,246 INFO  L122   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 24 states.
[2020-10-16 11:23:26,248 INFO  L276                IsEmpty]: Start isEmpty. Operand 24 states.
[2020-10-16 11:23:26,253 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2020-10-16 11:23:26,254 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:23:26,255 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2020-10-16 11:23:26,255 INFO  L429      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:23:26,261 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:23:26,261 INFO  L82        PathProgramCache]: Analyzing trace with hash 293090759, now seen corresponding path program 1 times
[2020-10-16 11:23:26,272 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:23:26,272 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959503349]
[2020-10-16 11:23:26,273 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:23:26,408 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:23:26,510 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 11:23:26,511 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959503349]
[2020-10-16 11:23:26,512 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 11:23:26,512 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 11:23:26,513 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105354282]
[2020-10-16 11:23:26,518 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 11:23:26,519 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:23:26,538 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 11:23:26,539 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 11:23:26,542 INFO  L87              Difference]: Start difference. First operand 24 states. Second operand 4 states.
[2020-10-16 11:23:26,582 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:23:26,582 INFO  L93              Difference]: Finished difference Result 27 states and 45 transitions.
[2020-10-16 11:23:26,583 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-10-16 11:23:26,584 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 5
[2020-10-16 11:23:26,585 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:23:26,597 INFO  L225             Difference]: With dead ends: 27
[2020-10-16 11:23:26,597 INFO  L226             Difference]: Without dead ends: 27
[2020-10-16 11:23:26,599 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 11:23:26,620 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2020-10-16 11:23:26,635 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23.
[2020-10-16 11:23:26,637 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 23 states.
[2020-10-16 11:23:26,638 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 42 transitions.
[2020-10-16 11:23:26,640 INFO  L78                 Accepts]: Start accepts. Automaton has 23 states and 42 transitions. Word has length 5
[2020-10-16 11:23:26,640 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:23:26,640 INFO  L481      AbstractCegarLoop]: Abstraction has 23 states and 42 transitions.
[2020-10-16 11:23:26,641 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 11:23:26,641 INFO  L276                IsEmpty]: Start isEmpty. Operand 23 states and 42 transitions.
[2020-10-16 11:23:26,641 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2020-10-16 11:23:26,641 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:23:26,642 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2020-10-16 11:23:26,642 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-16 11:23:26,642 INFO  L429      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:23:26,642 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:23:26,643 INFO  L82        PathProgramCache]: Analyzing trace with hash 495879514, now seen corresponding path program 1 times
[2020-10-16 11:23:26,643 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:23:26,643 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578910102]
[2020-10-16 11:23:26,644 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:23:26,676 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:23:26,768 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 11:23:26,770 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578910102]
[2020-10-16 11:23:26,770 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358333976]
[2020-10-16 11:23:26,770 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-10-16 11:23:26,833 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:23:26,835 INFO  L263         TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core
[2020-10-16 11:23:26,841 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-10-16 11:23:26,896 INFO  L375       QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 2, 1] term
[2020-10-16 11:23:26,896 INFO  L603       QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts
[2020-10-16 11:23:26,921 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 11:23:26,921 INFO  L219   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-10-16 11:23:26,921 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6
[2020-10-16 11:23:26,923 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602711636]
[2020-10-16 11:23:26,923 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 7 states
[2020-10-16 11:23:26,924 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:23:26,924 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2020-10-16 11:23:26,924 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2020-10-16 11:23:26,925 INFO  L87              Difference]: Start difference. First operand 23 states and 42 transitions. Second operand 7 states.
[2020-10-16 11:23:27,067 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:23:27,067 INFO  L93              Difference]: Finished difference Result 31 states and 52 transitions.
[2020-10-16 11:23:27,068 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-10-16 11:23:27,068 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 6
[2020-10-16 11:23:27,068 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:23:27,069 INFO  L225             Difference]: With dead ends: 31
[2020-10-16 11:23:27,069 INFO  L226             Difference]: Without dead ends: 31
[2020-10-16 11:23:27,070 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2020-10-16 11:23:27,071 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31 states.
[2020-10-16 11:23:27,074 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 15.
[2020-10-16 11:23:27,074 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 15 states.
[2020-10-16 11:23:27,075 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 24 transitions.
[2020-10-16 11:23:27,075 INFO  L78                 Accepts]: Start accepts. Automaton has 15 states and 24 transitions. Word has length 6
[2020-10-16 11:23:27,075 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:23:27,075 INFO  L481      AbstractCegarLoop]: Abstraction has 15 states and 24 transitions.
[2020-10-16 11:23:27,076 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2020-10-16 11:23:27,076 INFO  L276                IsEmpty]: Start isEmpty. Operand 15 states and 24 transitions.
[2020-10-16 11:23:27,076 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2020-10-16 11:23:27,076 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:23:27,077 INFO  L422         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1]
[2020-10-16 11:23:27,277 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2020-10-16 11:23:27,278 INFO  L429      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:23:27,278 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:23:27,278 INFO  L82        PathProgramCache]: Analyzing trace with hash 495744146, now seen corresponding path program 1 times
[2020-10-16 11:23:27,278 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:23:27,279 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48350760]
[2020-10-16 11:23:27,279 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:23:27,297 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-16 11:23:27,297 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-10-16 11:23:27,307 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-16 11:23:27,308 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-10-16 11:23:27,326 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-10-16 11:23:27,326 INFO  L523         BasicCegarLoop]: Counterexample might be feasible
[2020-10-16 11:23:27,326 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-16 11:23:27,327 WARN  L264   etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available.
[2020-10-16 11:23:27,328 WARN  L371   ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis
[2020-10-16 11:23:27,328 INFO  L348   ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances.
[2020-10-16 11:23:27,336 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,336 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,336 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,336 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,337 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,337 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,337 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,337 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,338 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,338 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,338 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,338 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,338 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,339 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,339 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,339 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,339 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,339 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,340 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,340 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,340 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,340 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,340 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,340 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,341 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,341 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,341 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,341 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,341 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,342 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,342 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,342 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,343 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,343 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,343 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,343 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,343 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,343 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,344 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,344 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,344 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,344 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,344 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,345 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,345 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,345 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,345 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,345 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,345 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,346 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,346 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,346 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,346 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,346 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,347 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,347 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,347 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,347 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,347 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,348 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,348 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,348 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,349 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,349 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,349 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,349 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,350 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,350 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,350 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,350 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,350 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,351 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,352 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,352 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,353 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,353 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,353 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,353 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,353 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,354 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,354 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,354 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:27,355 INFO  L149    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2020-10-16 11:23:27,356 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-10-16 11:23:27,356 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-10-16 11:23:27,356 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-10-16 11:23:27,356 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-10-16 11:23:27,356 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-16 11:23:27,356 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-16 11:23:27,357 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-10-16 11:23:27,357 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-16 11:23:27,357 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-16 11:23:27,359 INFO  L129   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2020-10-16 11:23:27,359 INFO  L144   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 88 transitions, 188 flow
[2020-10-16 11:23:27,359 INFO  L111        LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 88 transitions, 188 flow
[2020-10-16 11:23:27,360 INFO  L71            FinitePrefix]: Start finitePrefix. Operand has 83 places, 88 transitions, 188 flow
[2020-10-16 11:23:27,385 INFO  L129       PetriNetUnfolder]: 12/107 cut-off events.
[2020-10-16 11:23:27,385 INFO  L130       PetriNetUnfolder]: For 2/2 co-relation queries the response was YES.
[2020-10-16 11:23:27,386 INFO  L80            FinitePrefix]: Finished finitePrefix Result has 117 conditions, 107 events. 12/107 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 223 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 71. Up to 6 conditions per place. 
[2020-10-16 11:23:27,390 INFO  L117        LiptonReduction]: Number of co-enabled transitions 2548
[2020-10-16 11:23:29,172 WARN  L193               SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64
[2020-10-16 11:23:29,241 INFO  L132        LiptonReduction]: Checked pairs total: 5928
[2020-10-16 11:23:29,241 INFO  L134        LiptonReduction]: Total number of compositions: 79
[2020-10-16 11:23:29,241 INFO  L100   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 27 transitions, 66 flow
[2020-10-16 11:23:29,266 INFO  L122   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 445 states.
[2020-10-16 11:23:29,266 INFO  L276                IsEmpty]: Start isEmpty. Operand 445 states.
[2020-10-16 11:23:29,267 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2020-10-16 11:23:29,267 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:23:29,268 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2020-10-16 11:23:29,268 INFO  L429      AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:23:29,268 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:23:29,268 INFO  L82        PathProgramCache]: Analyzing trace with hash -345168823, now seen corresponding path program 1 times
[2020-10-16 11:23:29,269 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:23:29,269 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555581787]
[2020-10-16 11:23:29,269 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:23:29,291 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:23:29,319 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 11:23:29,319 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555581787]
[2020-10-16 11:23:29,320 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 11:23:29,320 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 11:23:29,320 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211748210]
[2020-10-16 11:23:29,320 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 11:23:29,321 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:23:29,321 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 11:23:29,321 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 11:23:29,321 INFO  L87              Difference]: Start difference. First operand 445 states. Second operand 3 states.
[2020-10-16 11:23:29,363 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:23:29,363 INFO  L93              Difference]: Finished difference Result 471 states and 1311 transitions.
[2020-10-16 11:23:29,363 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-10-16 11:23:29,364 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 7
[2020-10-16 11:23:29,364 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:23:29,374 INFO  L225             Difference]: With dead ends: 471
[2020-10-16 11:23:29,375 INFO  L226             Difference]: Without dead ends: 471
[2020-10-16 11:23:29,375 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 11:23:29,385 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 471 states.
[2020-10-16 11:23:29,439 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 432.
[2020-10-16 11:23:29,439 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 432 states.
[2020-10-16 11:23:29,454 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 1241 transitions.
[2020-10-16 11:23:29,454 INFO  L78                 Accepts]: Start accepts. Automaton has 432 states and 1241 transitions. Word has length 7
[2020-10-16 11:23:29,454 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:23:29,455 INFO  L481      AbstractCegarLoop]: Abstraction has 432 states and 1241 transitions.
[2020-10-16 11:23:29,455 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 11:23:29,455 INFO  L276                IsEmpty]: Start isEmpty. Operand 432 states and 1241 transitions.
[2020-10-16 11:23:29,458 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-10-16 11:23:29,458 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:23:29,458 INFO  L422         BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1]
[2020-10-16 11:23:29,458 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-10-16 11:23:29,458 INFO  L429      AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:23:29,459 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:23:29,459 INFO  L82        PathProgramCache]: Analyzing trace with hash -1481361204, now seen corresponding path program 1 times
[2020-10-16 11:23:29,459 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:23:29,459 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832632838]
[2020-10-16 11:23:29,459 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:23:29,487 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-16 11:23:29,490 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-10-16 11:23:29,505 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-16 11:23:29,506 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-10-16 11:23:29,518 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-10-16 11:23:29,519 INFO  L523         BasicCegarLoop]: Counterexample might be feasible
[2020-10-16 11:23:29,519 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-10-16 11:23:29,519 WARN  L264   etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available.
[2020-10-16 11:23:29,521 WARN  L371   ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis
[2020-10-16 11:23:29,522 INFO  L348   ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances.
[2020-10-16 11:23:29,533 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,533 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,533 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,534 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,534 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,534 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,534 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,535 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,535 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,535 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,535 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,535 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,535 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,536 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,536 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,549 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,550 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,550 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,550 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,550 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,550 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,550 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,550 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,550 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,551 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,551 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,551 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,551 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,551 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,552 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,552 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,553 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,553 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,554 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,554 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,554 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,554 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,554 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,554 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,555 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,555 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,555 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,555 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,555 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,555 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,556 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,556 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,556 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,556 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,556 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,556 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,557 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,557 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,557 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,557 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,557 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,557 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,557 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,558 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,558 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,558 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,558 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,559 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,559 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,559 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,559 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,559 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,559 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,560 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,560 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,560 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,560 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,560 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,560 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,561 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,561 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,561 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,561 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,561 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,561 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,562 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,562 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,562 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,562 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,562 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,562 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,563 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,563 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,563 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,563 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,563 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,564 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,564 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,564 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,564 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,565 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,565 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,565 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,565 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,565 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,565 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,566 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,566 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,567 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,568 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,568 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,568 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,568 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,568 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,568 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,569 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,569 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,569 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,570 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,570 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,571 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,571 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,571 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,571 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,571 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,571 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,571 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,572 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:29,573 INFO  L149    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2020-10-16 11:23:29,573 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2020-10-16 11:23:29,574 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-10-16 11:23:29,574 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-10-16 11:23:29,574 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-10-16 11:23:29,574 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-16 11:23:29,574 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-16 11:23:29,574 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-10-16 11:23:29,575 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-16 11:23:29,575 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-16 11:23:29,577 INFO  L129   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2020-10-16 11:23:29,577 INFO  L144   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 115 transitions, 251 flow
[2020-10-16 11:23:29,577 INFO  L111        LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 115 transitions, 251 flow
[2020-10-16 11:23:29,577 INFO  L71            FinitePrefix]: Start finitePrefix. Operand has 108 places, 115 transitions, 251 flow
[2020-10-16 11:23:29,604 INFO  L129       PetriNetUnfolder]: 17/144 cut-off events.
[2020-10-16 11:23:29,605 INFO  L130       PetriNetUnfolder]: For 7/7 co-relation queries the response was YES.
[2020-10-16 11:23:29,607 INFO  L80            FinitePrefix]: Finished finitePrefix Result has 160 conditions, 144 events. 17/144 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 374 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 111. Up to 8 conditions per place. 
[2020-10-16 11:23:29,613 INFO  L117        LiptonReduction]: Number of co-enabled transitions 5928
[2020-10-16 11:23:31,819 WARN  L193               SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62
[2020-10-16 11:23:31,906 INFO  L132        LiptonReduction]: Checked pairs total: 14612
[2020-10-16 11:23:31,907 INFO  L134        LiptonReduction]: Total number of compositions: 102
[2020-10-16 11:23:31,907 INFO  L100   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 38 transitions, 97 flow
[2020-10-16 11:23:32,116 INFO  L122   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4009 states.
[2020-10-16 11:23:32,117 INFO  L276                IsEmpty]: Start isEmpty. Operand 4009 states.
[2020-10-16 11:23:32,117 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2020-10-16 11:23:32,117 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:23:32,118 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2020-10-16 11:23:32,118 INFO  L429      AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:23:32,118 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:23:32,118 INFO  L82        PathProgramCache]: Analyzing trace with hash 349546925, now seen corresponding path program 1 times
[2020-10-16 11:23:32,119 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:23:32,119 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553915008]
[2020-10-16 11:23:32,119 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:23:32,131 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:23:32,157 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 11:23:32,158 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553915008]
[2020-10-16 11:23:32,158 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 11:23:32,158 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 11:23:32,158 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590441372]
[2020-10-16 11:23:32,159 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 11:23:32,159 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:23:32,159 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 11:23:32,160 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-10-16 11:23:32,160 INFO  L87              Difference]: Start difference. First operand 4009 states. Second operand 4 states.
[2020-10-16 11:23:32,279 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:23:32,279 INFO  L93              Difference]: Finished difference Result 4251 states and 16881 transitions.
[2020-10-16 11:23:32,279 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-10-16 11:23:32,280 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 7
[2020-10-16 11:23:32,280 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:23:32,328 INFO  L225             Difference]: With dead ends: 4251
[2020-10-16 11:23:32,328 INFO  L226             Difference]: Without dead ends: 4251
[2020-10-16 11:23:32,329 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-10-16 11:23:32,374 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4251 states.
[2020-10-16 11:23:32,503 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4251 to 3897.
[2020-10-16 11:23:32,503 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3897 states.
[2020-10-16 11:23:32,537 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3897 states to 3897 states and 15858 transitions.
[2020-10-16 11:23:32,538 INFO  L78                 Accepts]: Start accepts. Automaton has 3897 states and 15858 transitions. Word has length 7
[2020-10-16 11:23:32,538 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:23:32,538 INFO  L481      AbstractCegarLoop]: Abstraction has 3897 states and 15858 transitions.
[2020-10-16 11:23:32,538 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 11:23:32,538 INFO  L276                IsEmpty]: Start isEmpty. Operand 3897 states and 15858 transitions.
[2020-10-16 11:23:32,539 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-10-16 11:23:32,539 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:23:32,539 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 11:23:32,540 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-10-16 11:23:32,540 INFO  L429      AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:23:32,540 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:23:32,540 INFO  L82        PathProgramCache]: Analyzing trace with hash -2048946228, now seen corresponding path program 1 times
[2020-10-16 11:23:32,540 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:23:32,541 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085026662]
[2020-10-16 11:23:32,541 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:23:32,552 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:23:32,571 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 11:23:32,571 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085026662]
[2020-10-16 11:23:32,571 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 11:23:32,571 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 11:23:32,572 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790339412]
[2020-10-16 11:23:32,572 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 11:23:32,572 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:23:32,573 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 11:23:32,573 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 11:23:32,573 INFO  L87              Difference]: Start difference. First operand 3897 states and 15858 transitions. Second operand 3 states.
[2020-10-16 11:23:32,717 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:23:32,718 INFO  L93              Difference]: Finished difference Result 4251 states and 16527 transitions.
[2020-10-16 11:23:32,718 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-10-16 11:23:32,718 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 8
[2020-10-16 11:23:32,719 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:23:32,763 INFO  L225             Difference]: With dead ends: 4251
[2020-10-16 11:23:32,763 INFO  L226             Difference]: Without dead ends: 4251
[2020-10-16 11:23:32,763 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 11:23:32,814 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4251 states.
[2020-10-16 11:23:32,959 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4251 to 3897.
[2020-10-16 11:23:32,960 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 3897 states.
[2020-10-16 11:23:32,989 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3897 states to 3897 states and 15504 transitions.
[2020-10-16 11:23:32,990 INFO  L78                 Accepts]: Start accepts. Automaton has 3897 states and 15504 transitions. Word has length 8
[2020-10-16 11:23:32,990 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:23:32,990 INFO  L481      AbstractCegarLoop]: Abstraction has 3897 states and 15504 transitions.
[2020-10-16 11:23:32,990 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 11:23:32,990 INFO  L276                IsEmpty]: Start isEmpty. Operand 3897 states and 15504 transitions.
[2020-10-16 11:23:32,992 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-10-16 11:23:32,992 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:23:32,992 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 11:23:32,992 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-10-16 11:23:32,992 INFO  L429      AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:23:32,992 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:23:32,993 INFO  L82        PathProgramCache]: Analyzing trace with hash -1977084772, now seen corresponding path program 1 times
[2020-10-16 11:23:32,993 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:23:32,993 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121154671]
[2020-10-16 11:23:32,993 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:23:33,010 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:23:33,056 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 11:23:33,056 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121154671]
[2020-10-16 11:23:33,056 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 11:23:33,057 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 11:23:33,057 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425983899]
[2020-10-16 11:23:33,059 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-16 11:23:33,059 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:23:33,059 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-16 11:23:33,060 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-16 11:23:33,060 INFO  L87              Difference]: Start difference. First operand 3897 states and 15504 transitions. Second operand 5 states.
[2020-10-16 11:23:33,388 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:23:33,388 INFO  L93              Difference]: Finished difference Result 11165 states and 43215 transitions.
[2020-10-16 11:23:33,389 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-10-16 11:23:33,389 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 10
[2020-10-16 11:23:33,389 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:23:33,480 INFO  L225             Difference]: With dead ends: 11165
[2020-10-16 11:23:33,480 INFO  L226             Difference]: Without dead ends: 11165
[2020-10-16 11:23:33,481 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-10-16 11:23:33,571 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11165 states.
[2020-10-16 11:23:33,937 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11165 to 6034.
[2020-10-16 11:23:33,938 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 6034 states.
[2020-10-16 11:23:33,973 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6034 states to 6034 states and 23844 transitions.
[2020-10-16 11:23:33,973 INFO  L78                 Accepts]: Start accepts. Automaton has 6034 states and 23844 transitions. Word has length 10
[2020-10-16 11:23:33,973 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:23:33,974 INFO  L481      AbstractCegarLoop]: Abstraction has 6034 states and 23844 transitions.
[2020-10-16 11:23:33,974 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-16 11:23:33,974 INFO  L276                IsEmpty]: Start isEmpty. Operand 6034 states and 23844 transitions.
[2020-10-16 11:23:33,975 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-10-16 11:23:33,975 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:23:33,975 INFO  L422         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 11:23:33,975 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-10-16 11:23:33,976 INFO  L429      AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:23:33,976 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:23:33,976 INFO  L82        PathProgramCache]: Analyzing trace with hash 1526629100, now seen corresponding path program 1 times
[2020-10-16 11:23:33,976 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:23:33,976 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532716451]
[2020-10-16 11:23:33,977 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:23:33,985 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:23:34,005 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-10-16 11:23:34,005 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532716451]
[2020-10-16 11:23:34,006 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 11:23:34,006 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 11:23:34,006 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515310008]
[2020-10-16 11:23:34,006 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 11:23:34,007 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:23:34,007 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 11:23:34,007 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-10-16 11:23:34,007 INFO  L87              Difference]: Start difference. First operand 6034 states and 23844 transitions. Second operand 4 states.
[2020-10-16 11:23:34,138 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:23:34,138 INFO  L93              Difference]: Finished difference Result 7619 states and 30053 transitions.
[2020-10-16 11:23:34,139 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-10-16 11:23:34,139 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 10
[2020-10-16 11:23:34,139 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:23:34,186 INFO  L225             Difference]: With dead ends: 7619
[2020-10-16 11:23:34,186 INFO  L226             Difference]: Without dead ends: 7619
[2020-10-16 11:23:34,186 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-10-16 11:23:34,256 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7619 states.
[2020-10-16 11:23:34,466 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7619 to 7055.
[2020-10-16 11:23:34,466 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 7055 states.
[2020-10-16 11:23:34,519 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7055 states to 7055 states and 28411 transitions.
[2020-10-16 11:23:34,520 INFO  L78                 Accepts]: Start accepts. Automaton has 7055 states and 28411 transitions. Word has length 10
[2020-10-16 11:23:34,521 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:23:34,521 INFO  L481      AbstractCegarLoop]: Abstraction has 7055 states and 28411 transitions.
[2020-10-16 11:23:34,521 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 11:23:34,521 INFO  L276                IsEmpty]: Start isEmpty. Operand 7055 states and 28411 transitions.
[2020-10-16 11:23:34,523 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-10-16 11:23:34,523 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:23:34,523 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 11:23:34,523 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2020-10-16 11:23:34,523 INFO  L429      AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:23:34,524 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:23:34,524 INFO  L82        PathProgramCache]: Analyzing trace with hash -1160084803, now seen corresponding path program 1 times
[2020-10-16 11:23:34,524 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:23:34,524 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278676218]
[2020-10-16 11:23:34,525 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:23:34,535 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:23:35,161 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 11:23:35,162 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278676218]
[2020-10-16 11:23:35,162 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495919893]
[2020-10-16 11:23:35,162 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-10-16 11:23:35,214 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:23:35,215 INFO  L263         TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-10-16 11:23:35,216 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-10-16 11:23:35,221 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 11:23:35,222 INFO  L219   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-10-16 11:23:35,222 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4
[2020-10-16 11:23:35,222 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929638063]
[2020-10-16 11:23:35,223 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-16 11:23:35,223 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:23:35,223 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-16 11:23:35,223 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-10-16 11:23:35,224 INFO  L87              Difference]: Start difference. First operand 7055 states and 28411 transitions. Second operand 5 states.
[2020-10-16 11:23:35,618 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:23:35,618 INFO  L93              Difference]: Finished difference Result 13135 states and 51631 transitions.
[2020-10-16 11:23:35,618 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-10-16 11:23:35,619 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 11
[2020-10-16 11:23:35,619 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:23:35,687 INFO  L225             Difference]: With dead ends: 13135
[2020-10-16 11:23:35,688 INFO  L226             Difference]: Without dead ends: 13135
[2020-10-16 11:23:35,688 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-10-16 11:23:35,775 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13135 states.
[2020-10-16 11:23:36,176 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13135 to 9279.
[2020-10-16 11:23:36,177 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 9279 states.
[2020-10-16 11:23:36,223 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9279 states to 9279 states and 38063 transitions.
[2020-10-16 11:23:36,223 INFO  L78                 Accepts]: Start accepts. Automaton has 9279 states and 38063 transitions. Word has length 11
[2020-10-16 11:23:36,223 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:23:36,223 INFO  L481      AbstractCegarLoop]: Abstraction has 9279 states and 38063 transitions.
[2020-10-16 11:23:36,223 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-16 11:23:36,224 INFO  L276                IsEmpty]: Start isEmpty. Operand 9279 states and 38063 transitions.
[2020-10-16 11:23:36,224 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-10-16 11:23:36,224 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:23:36,225 INFO  L422         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 11:23:36,438 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2020-10-16 11:23:36,438 INFO  L429      AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:23:36,439 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:23:36,439 INFO  L82        PathProgramCache]: Analyzing trace with hash 80863033, now seen corresponding path program 1 times
[2020-10-16 11:23:36,439 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:23:36,440 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940434986]
[2020-10-16 11:23:36,440 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:23:36,447 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:23:36,461 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-10-16 11:23:36,462 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940434986]
[2020-10-16 11:23:36,462 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 11:23:36,462 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 11:23:36,463 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371717196]
[2020-10-16 11:23:36,463 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 11:23:36,463 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:23:36,463 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 11:23:36,464 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 11:23:36,464 INFO  L87              Difference]: Start difference. First operand 9279 states and 38063 transitions. Second operand 3 states.
[2020-10-16 11:23:36,556 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:23:36,556 INFO  L93              Difference]: Finished difference Result 9641 states and 38195 transitions.
[2020-10-16 11:23:36,557 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-10-16 11:23:36,557 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 11
[2020-10-16 11:23:36,557 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:23:36,604 INFO  L225             Difference]: With dead ends: 9641
[2020-10-16 11:23:36,605 INFO  L226             Difference]: Without dead ends: 9641
[2020-10-16 11:23:36,605 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 11:23:36,662 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9641 states.
[2020-10-16 11:23:36,889 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9641 to 9065.
[2020-10-16 11:23:36,889 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 9065 states.
[2020-10-16 11:23:36,931 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9065 states to 9065 states and 36455 transitions.
[2020-10-16 11:23:36,931 INFO  L78                 Accepts]: Start accepts. Automaton has 9065 states and 36455 transitions. Word has length 11
[2020-10-16 11:23:36,931 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:23:36,931 INFO  L481      AbstractCegarLoop]: Abstraction has 9065 states and 36455 transitions.
[2020-10-16 11:23:36,931 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 11:23:36,932 INFO  L276                IsEmpty]: Start isEmpty. Operand 9065 states and 36455 transitions.
[2020-10-16 11:23:36,932 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-10-16 11:23:36,933 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:23:36,933 INFO  L422         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 11:23:36,933 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2020-10-16 11:23:36,933 INFO  L429      AbstractCegarLoop]: === Iteration 7 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:23:36,933 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:23:36,934 INFO  L82        PathProgramCache]: Analyzing trace with hash -1602889540, now seen corresponding path program 2 times
[2020-10-16 11:23:36,934 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:23:36,934 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832470598]
[2020-10-16 11:23:36,934 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:23:36,944 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:23:36,990 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 11:23:36,990 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832470598]
[2020-10-16 11:23:36,990 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220271851]
[2020-10-16 11:23:36,991 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-10-16 11:23:37,048 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-10-16 11:23:37,048 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-10-16 11:23:37,049 INFO  L263         TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core
[2020-10-16 11:23:37,051 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-10-16 11:23:37,055 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 11:23:37,056 INFO  L219   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-10-16 11:23:37,056 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5
[2020-10-16 11:23:37,056 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805176394]
[2020-10-16 11:23:37,057 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-10-16 11:23:37,057 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:23:37,057 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-10-16 11:23:37,057 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-10-16 11:23:37,058 INFO  L87              Difference]: Start difference. First operand 9065 states and 36455 transitions. Second operand 6 states.
[2020-10-16 11:23:37,571 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:23:37,571 INFO  L93              Difference]: Finished difference Result 14129 states and 54503 transitions.
[2020-10-16 11:23:37,572 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-10-16 11:23:37,572 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 12
[2020-10-16 11:23:37,572 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:23:37,643 INFO  L225             Difference]: With dead ends: 14129
[2020-10-16 11:23:37,643 INFO  L226             Difference]: Without dead ends: 14129
[2020-10-16 11:23:37,644 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2020-10-16 11:23:37,709 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14129 states.
[2020-10-16 11:23:37,970 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14129 to 9554.
[2020-10-16 11:23:37,970 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 9554 states.
[2020-10-16 11:23:38,010 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9554 states to 9554 states and 38824 transitions.
[2020-10-16 11:23:38,011 INFO  L78                 Accepts]: Start accepts. Automaton has 9554 states and 38824 transitions. Word has length 12
[2020-10-16 11:23:38,012 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:23:38,012 INFO  L481      AbstractCegarLoop]: Abstraction has 9554 states and 38824 transitions.
[2020-10-16 11:23:38,012 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-10-16 11:23:38,012 INFO  L276                IsEmpty]: Start isEmpty. Operand 9554 states and 38824 transitions.
[2020-10-16 11:23:38,013 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-10-16 11:23:38,013 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:23:38,013 INFO  L422         BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1]
[2020-10-16 11:23:38,213 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2020-10-16 11:23:38,214 INFO  L429      AbstractCegarLoop]: === Iteration 8 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:23:38,215 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:23:38,215 INFO  L82        PathProgramCache]: Analyzing trace with hash 562791573, now seen corresponding path program 1 times
[2020-10-16 11:23:38,215 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:23:38,215 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606025038]
[2020-10-16 11:23:38,215 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:23:38,223 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-16 11:23:38,223 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-10-16 11:23:38,229 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-16 11:23:38,229 INFO  L221             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-10-16 11:23:38,236 INFO  L173   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2020-10-16 11:23:38,236 INFO  L523         BasicCegarLoop]: Counterexample might be feasible
[2020-10-16 11:23:38,236 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2020-10-16 11:23:38,236 WARN  L264   etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available.
[2020-10-16 11:23:38,237 WARN  L371   ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis
[2020-10-16 11:23:38,237 INFO  L348   ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances.
[2020-10-16 11:23:38,245 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,245 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,246 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,246 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,246 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,246 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,246 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,246 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,247 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,247 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,247 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,247 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,247 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,247 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,247 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,248 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,248 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,248 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,248 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,248 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,248 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,248 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,249 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,249 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,249 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,249 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,249 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,249 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,249 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,250 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,250 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,250 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,250 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,250 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,250 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,251 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,251 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,251 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,251 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,251 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,251 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,251 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,252 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,252 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,252 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,252 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,252 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,252 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,252 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,253 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,253 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,253 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,253 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,253 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,253 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,253 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,254 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,254 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,254 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,254 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,254 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,254 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,255 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,255 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,255 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,255 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,255 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,255 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,255 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,256 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,256 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,256 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,256 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,256 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,256 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,256 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,257 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,257 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,257 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,257 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,257 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,257 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,257 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,258 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,258 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,258 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,258 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,258 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,258 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,258 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,259 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,259 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,259 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,259 WARN  L313   ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,259 WARN  L313   ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,259 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,259 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,260 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,260 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,260 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,260 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,260 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,260 WARN  L313   ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,261 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,261 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,261 WARN  L313   ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,261 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,261 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,261 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,261 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,261 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,262 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,262 WARN  L313   ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,262 WARN  L313   ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,262 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,262 WARN  L313   ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,262 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,262 WARN  L313   ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,263 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,263 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,263 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,263 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,263 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,263 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,264 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,264 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,264 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,264 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,264 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,265 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,265 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,265 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,265 WARN  L313   ript$VariableManager]: TermVariabe thrThread1of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,265 WARN  L313   ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,266 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,267 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,267 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,267 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,267 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,267 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,267 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,268 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,268 WARN  L313   ript$VariableManager]: TermVariabe thrThread2of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,268 WARN  L313   ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,269 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,269 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,270 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,270 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,270 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,270 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,270 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,270 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,271 WARN  L313   ript$VariableManager]: TermVariabe thrThread3of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,271 WARN  L313   ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,272 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,272 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~end~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,272 WARN  L313   ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,273 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~c~0 not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,273 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,273 WARN  L313   ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,273 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,273 WARN  L313   ript$VariableManager]: TermVariabe |thrThread4of4ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,273 WARN  L313   ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,274 WARN  L313   ript$VariableManager]: TermVariabe thrThread4of4ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 11:23:38,275 INFO  L149    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2020-10-16 11:23:38,275 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2020-10-16 11:23:38,275 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-10-16 11:23:38,275 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-10-16 11:23:38,275 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-10-16 11:23:38,275 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-16 11:23:38,276 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-16 11:23:38,276 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-10-16 11:23:38,276 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-16 11:23:38,276 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-16 11:23:38,278 INFO  L129   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2020-10-16 11:23:38,278 INFO  L144   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 142 transitions, 316 flow
[2020-10-16 11:23:38,278 INFO  L111        LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 142 transitions, 316 flow
[2020-10-16 11:23:38,278 INFO  L71            FinitePrefix]: Start finitePrefix. Operand has 133 places, 142 transitions, 316 flow
[2020-10-16 11:23:38,309 INFO  L129       PetriNetUnfolder]: 22/181 cut-off events.
[2020-10-16 11:23:38,309 INFO  L130       PetriNetUnfolder]: For 16/16 co-relation queries the response was YES.
[2020-10-16 11:23:38,313 INFO  L80            FinitePrefix]: Finished finitePrefix Result has 204 conditions, 181 events. 22/181 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 556 event pairs, 0 based on Foata normal form. 0/150 useless extension candidates. Maximal degree in co-relation 152. Up to 10 conditions per place. 
[2020-10-16 11:23:38,323 INFO  L117        LiptonReduction]: Number of co-enabled transitions 10712
[2020-10-16 11:23:40,973 WARN  L193               SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54
[2020-10-16 11:23:41,047 INFO  L132        LiptonReduction]: Checked pairs total: 28741
[2020-10-16 11:23:41,048 INFO  L134        LiptonReduction]: Total number of compositions: 128
[2020-10-16 11:23:41,048 INFO  L100   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 49 transitions, 130 flow
[2020-10-16 11:23:46,140 INFO  L122   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 36085 states.
[2020-10-16 11:23:46,140 INFO  L276                IsEmpty]: Start isEmpty. Operand 36085 states.
[2020-10-16 11:23:46,141 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2020-10-16 11:23:46,141 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:23:46,141 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2020-10-16 11:23:46,141 INFO  L429      AbstractCegarLoop]: === Iteration 1 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:23:46,142 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:23:46,142 INFO  L82        PathProgramCache]: Analyzing trace with hash 885326645, now seen corresponding path program 1 times
[2020-10-16 11:23:46,142 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:23:46,142 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989703289]
[2020-10-16 11:23:46,142 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:23:46,149 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:23:46,164 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 11:23:46,165 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989703289]
[2020-10-16 11:23:46,165 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 11:23:46,165 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 11:23:46,165 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914273110]
[2020-10-16 11:23:46,165 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 11:23:46,166 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:23:46,166 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 11:23:46,166 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-10-16 11:23:46,166 INFO  L87              Difference]: Start difference. First operand 36085 states. Second operand 4 states.
[2020-10-16 11:23:46,522 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:23:46,522 INFO  L93              Difference]: Finished difference Result 38271 states and 194460 transitions.
[2020-10-16 11:23:46,523 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-10-16 11:23:46,523 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 7
[2020-10-16 11:23:46,523 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:23:46,731 INFO  L225             Difference]: With dead ends: 38271
[2020-10-16 11:23:46,732 INFO  L226             Difference]: Without dead ends: 38271
[2020-10-16 11:23:46,734 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-10-16 11:23:48,967 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 38271 states.
[2020-10-16 11:23:50,080 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 38271 to 35082.
[2020-10-16 11:23:50,080 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 35082 states.
[2020-10-16 11:23:50,214 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35082 states to 35082 states and 181710 transitions.
[2020-10-16 11:23:50,214 INFO  L78                 Accepts]: Start accepts. Automaton has 35082 states and 181710 transitions. Word has length 7
[2020-10-16 11:23:50,214 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:23:50,214 INFO  L481      AbstractCegarLoop]: Abstraction has 35082 states and 181710 transitions.
[2020-10-16 11:23:50,214 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 11:23:50,214 INFO  L276                IsEmpty]: Start isEmpty. Operand 35082 states and 181710 transitions.
[2020-10-16 11:23:50,215 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-10-16 11:23:50,215 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:23:50,215 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 11:23:50,215 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2020-10-16 11:23:50,215 INFO  L429      AbstractCegarLoop]: === Iteration 2 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:23:50,215 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:23:50,215 INFO  L82        PathProgramCache]: Analyzing trace with hash 1675324038, now seen corresponding path program 1 times
[2020-10-16 11:23:50,215 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:23:50,216 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84471641]
[2020-10-16 11:23:50,216 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:23:50,228 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:23:50,253 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 11:23:50,254 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84471641]
[2020-10-16 11:23:50,254 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 11:23:50,254 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 11:23:50,254 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567968722]
[2020-10-16 11:23:50,254 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 11:23:50,255 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:23:50,255 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 11:23:50,255 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 11:23:50,255 INFO  L87              Difference]: Start difference. First operand 35082 states and 181710 transitions. Second operand 3 states.
[2020-10-16 11:23:50,472 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:23:50,473 INFO  L93              Difference]: Finished difference Result 38271 states and 191271 transitions.
[2020-10-16 11:23:50,473 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-10-16 11:23:50,473 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 8
[2020-10-16 11:23:50,473 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:23:50,626 INFO  L225             Difference]: With dead ends: 38271
[2020-10-16 11:23:50,626 INFO  L226             Difference]: Without dead ends: 38271
[2020-10-16 11:23:50,627 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 11:23:53,401 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 38271 states.
[2020-10-16 11:23:53,952 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 38271 to 35082.
[2020-10-16 11:23:53,953 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 35082 states.
[2020-10-16 11:23:54,506 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35082 states to 35082 states and 178521 transitions.
[2020-10-16 11:23:54,506 INFO  L78                 Accepts]: Start accepts. Automaton has 35082 states and 178521 transitions. Word has length 8
[2020-10-16 11:23:54,506 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:23:54,506 INFO  L481      AbstractCegarLoop]: Abstraction has 35082 states and 178521 transitions.
[2020-10-16 11:23:54,507 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 11:23:54,507 INFO  L276                IsEmpty]: Start isEmpty. Operand 35082 states and 178521 transitions.
[2020-10-16 11:23:54,507 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-10-16 11:23:54,507 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:23:54,507 INFO  L422         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 11:23:54,507 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2020-10-16 11:23:54,507 INFO  L429      AbstractCegarLoop]: === Iteration 3 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:23:54,507 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:23:54,508 INFO  L82        PathProgramCache]: Analyzing trace with hash -1680450871, now seen corresponding path program 1 times
[2020-10-16 11:23:54,508 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:23:54,508 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37635373]
[2020-10-16 11:23:54,508 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:23:54,521 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:23:54,542 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-10-16 11:23:54,542 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37635373]
[2020-10-16 11:23:54,542 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 11:23:54,542 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 11:23:54,543 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760955155]
[2020-10-16 11:23:54,543 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 11:23:54,543 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:23:54,543 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 11:23:54,543 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 11:23:54,543 INFO  L87              Difference]: Start difference. First operand 35082 states and 178521 transitions. Second operand 3 states.
[2020-10-16 11:23:54,834 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:23:54,834 INFO  L93              Difference]: Finished difference Result 46764 states and 232812 transitions.
[2020-10-16 11:23:54,834 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-10-16 11:23:54,834 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 10
[2020-10-16 11:23:54,834 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:23:54,981 INFO  L225             Difference]: With dead ends: 46764
[2020-10-16 11:23:54,981 INFO  L226             Difference]: Without dead ends: 46764
[2020-10-16 11:23:54,981 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 11:23:55,472 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46764 states.
[2020-10-16 11:23:58,312 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46764 to 42870.
[2020-10-16 11:23:58,312 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 42870 states.
[2020-10-16 11:23:58,461 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42870 states to 42870 states and 217311 transitions.
[2020-10-16 11:23:58,461 INFO  L78                 Accepts]: Start accepts. Automaton has 42870 states and 217311 transitions. Word has length 10
[2020-10-16 11:23:58,461 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:23:58,462 INFO  L481      AbstractCegarLoop]: Abstraction has 42870 states and 217311 transitions.
[2020-10-16 11:23:58,462 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 11:23:58,462 INFO  L276                IsEmpty]: Start isEmpty. Operand 42870 states and 217311 transitions.
[2020-10-16 11:23:58,462 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-10-16 11:23:58,462 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:23:58,462 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 11:23:58,463 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2020-10-16 11:23:58,463 INFO  L429      AbstractCegarLoop]: === Iteration 4 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:23:58,463 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:23:58,463 INFO  L82        PathProgramCache]: Analyzing trace with hash -662629176, now seen corresponding path program 1 times
[2020-10-16 11:23:58,463 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:23:58,463 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198022696]
[2020-10-16 11:23:58,463 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:23:58,471 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:23:58,499 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 11:23:58,500 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198022696]
[2020-10-16 11:23:58,500 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 11:23:58,500 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 11:23:58,500 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472736557]
[2020-10-16 11:23:58,500 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-16 11:23:58,501 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:23:58,501 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-16 11:23:58,501 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-16 11:23:58,501 INFO  L87              Difference]: Start difference. First operand 42870 states and 217311 transitions. Second operand 5 states.
[2020-10-16 11:24:00,063 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:24:00,063 INFO  L93              Difference]: Finished difference Result 141044 states and 692287 transitions.
[2020-10-16 11:24:00,063 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-10-16 11:24:00,064 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 10
[2020-10-16 11:24:00,064 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:24:04,382 INFO  L225             Difference]: With dead ends: 141044
[2020-10-16 11:24:04,382 INFO  L226             Difference]: Without dead ends: 141044
[2020-10-16 11:24:04,382 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-10-16 11:24:05,334 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 141044 states.
[2020-10-16 11:24:07,231 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 141044 to 76855.
[2020-10-16 11:24:07,231 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 76855 states.
[2020-10-16 11:24:07,523 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 76855 states to 76855 states and 386073 transitions.
[2020-10-16 11:24:07,523 INFO  L78                 Accepts]: Start accepts. Automaton has 76855 states and 386073 transitions. Word has length 10
[2020-10-16 11:24:07,523 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:24:07,523 INFO  L481      AbstractCegarLoop]: Abstraction has 76855 states and 386073 transitions.
[2020-10-16 11:24:07,523 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-16 11:24:07,524 INFO  L276                IsEmpty]: Start isEmpty. Operand 76855 states and 386073 transitions.
[2020-10-16 11:24:07,524 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-10-16 11:24:07,524 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:24:07,524 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 11:24:07,525 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2020-10-16 11:24:07,525 INFO  L429      AbstractCegarLoop]: === Iteration 5 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:24:07,525 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:24:07,525 INFO  L82        PathProgramCache]: Analyzing trace with hash 933333843, now seen corresponding path program 1 times
[2020-10-16 11:24:07,525 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:24:07,526 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332561906]
[2020-10-16 11:24:07,526 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:24:07,533 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:24:07,558 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 11:24:07,558 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332561906]
[2020-10-16 11:24:07,558 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126111680]
[2020-10-16 11:24:07,559 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-10-16 11:24:07,614 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:24:07,615 INFO  L263         TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-10-16 11:24:07,616 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-10-16 11:24:07,619 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 11:24:07,619 INFO  L219   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-10-16 11:24:07,619 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4
[2020-10-16 11:24:07,620 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132167590]
[2020-10-16 11:24:07,620 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-16 11:24:07,620 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:24:07,620 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-16 11:24:07,620 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-10-16 11:24:07,621 INFO  L87              Difference]: Start difference. First operand 76855 states and 386073 transitions. Second operand 5 states.
[2020-10-16 11:24:09,487 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:24:09,488 INFO  L93              Difference]: Finished difference Result 156575 states and 767493 transitions.
[2020-10-16 11:24:09,488 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-10-16 11:24:09,488 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 11
[2020-10-16 11:24:09,488 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:24:14,948 INFO  L225             Difference]: With dead ends: 156575
[2020-10-16 11:24:14,948 INFO  L226             Difference]: Without dead ends: 156575
[2020-10-16 11:24:14,948 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2020-10-16 11:24:16,118 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 156575 states.
[2020-10-16 11:24:18,326 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 156575 to 106668.
[2020-10-16 11:24:18,326 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 106668 states.
[2020-10-16 11:24:19,435 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 106668 states to 106668 states and 541606 transitions.
[2020-10-16 11:24:19,436 INFO  L78                 Accepts]: Start accepts. Automaton has 106668 states and 541606 transitions. Word has length 11
[2020-10-16 11:24:19,438 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:24:19,439 INFO  L481      AbstractCegarLoop]: Abstraction has 106668 states and 541606 transitions.
[2020-10-16 11:24:19,439 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-16 11:24:19,439 INFO  L276                IsEmpty]: Start isEmpty. Operand 106668 states and 541606 transitions.
[2020-10-16 11:24:19,440 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-10-16 11:24:19,440 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:24:19,440 INFO  L422         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 11:24:19,655 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17
[2020-10-16 11:24:19,656 INFO  L429      AbstractCegarLoop]: === Iteration 6 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:24:19,656 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:24:19,656 INFO  L82        PathProgramCache]: Analyzing trace with hash -1131420120, now seen corresponding path program 2 times
[2020-10-16 11:24:19,657 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:24:19,657 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933055542]
[2020-10-16 11:24:19,658 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:24:19,674 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:24:19,721 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 11:24:19,722 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933055542]
[2020-10-16 11:24:19,722 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1147985757]
[2020-10-16 11:24:19,722 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-10-16 11:24:19,782 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2020-10-16 11:24:19,783 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-10-16 11:24:19,783 INFO  L263         TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 8 conjunts are in the unsatisfiable core
[2020-10-16 11:24:19,784 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-10-16 11:24:19,788 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 11:24:19,788 INFO  L219   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-10-16 11:24:19,788 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5
[2020-10-16 11:24:19,791 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33471352]
[2020-10-16 11:24:19,792 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-10-16 11:24:19,792 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:24:19,792 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-10-16 11:24:19,792 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2020-10-16 11:24:19,792 INFO  L87              Difference]: Start difference. First operand 106668 states and 541606 transitions. Second operand 6 states.
[2020-10-16 11:24:22,408 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:24:22,409 INFO  L93              Difference]: Finished difference Result 159236 states and 782186 transitions.
[2020-10-16 11:24:22,409 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2020-10-16 11:24:22,409 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 12
[2020-10-16 11:24:22,409 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:24:22,956 INFO  L225             Difference]: With dead ends: 159236
[2020-10-16 11:24:22,956 INFO  L226             Difference]: Without dead ends: 159236
[2020-10-16 11:24:22,957 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2020-10-16 11:24:25,381 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 159236 states.
[2020-10-16 11:24:33,464 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 159236 to 111759.
[2020-10-16 11:24:33,465 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 111759 states.
[2020-10-16 11:24:33,930 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 111759 states to 111759 states and 571639 transitions.
[2020-10-16 11:24:33,930 INFO  L78                 Accepts]: Start accepts. Automaton has 111759 states and 571639 transitions. Word has length 12
[2020-10-16 11:24:33,930 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:24:33,930 INFO  L481      AbstractCegarLoop]: Abstraction has 111759 states and 571639 transitions.
[2020-10-16 11:24:33,930 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-10-16 11:24:33,930 INFO  L276                IsEmpty]: Start isEmpty. Operand 111759 states and 571639 transitions.
[2020-10-16 11:24:33,931 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-10-16 11:24:33,932 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:24:33,932 INFO  L422         BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[MP z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process
[2020-10-16 11:24:34,892 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-10-16 11:24:34,892 INFO  L429      AbstractCegarLoop]: === Iteration 7 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:24:34,893 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:24:34,893 INFO  L82        PathProgramCache]: Analyzing trace with hash 527017072, now seen corresponding path program 1 times
[2020-10-16 11:24:34,893 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:24:34,893 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896511852]
[2020-10-16 11:24:34,894 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:24:34,899 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:24:34,922 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2020-10-16 11:24:34,922 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896511852]
[2020-10-16 11:24:34,922 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 11:24:34,923 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 11:24:34,923 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939651313]
[2020-10-16 11:24:34,923 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 11:24:34,923 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:24:34,924 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 11:24:34,924 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-10-16 11:24:34,924 INFO  L87              Difference]: Start difference. First operand 111759 states and 571639 transitions. Second operand 4 states.
[2020-10-16 11:24:35,880 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:24:35,880 INFO  L93              Difference]: Finished difference Result 140498 states and 717820 transitions.
[2020-10-16 11:24:35,881 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-10-16 11:24:35,881 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 13
[2020-10-16 11:24:35,881 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:24:36,365 INFO  L225             Difference]: With dead ends: 140498
[2020-10-16 11:24:36,365 INFO  L226             Difference]: Without dead ends: 140498
[2020-10-16 11:24:36,366 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-10-16 11:24:42,884 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 140498 states.
[2020-10-16 11:24:45,727 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 140498 to 130613.
[2020-10-16 11:24:45,727 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 130613 states.
[2020-10-16 11:24:46,349 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 130613 states to 130613 states and 677480 transitions.
[2020-10-16 11:24:46,350 INFO  L78                 Accepts]: Start accepts. Automaton has 130613 states and 677480 transitions. Word has length 13
[2020-10-16 11:24:46,350 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:24:46,350 INFO  L481      AbstractCegarLoop]: Abstraction has 130613 states and 677480 transitions.
[2020-10-16 11:24:46,350 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 11:24:46,350 INFO  L276                IsEmpty]: Start isEmpty. Operand 130613 states and 677480 transitions.
[2020-10-16 11:24:46,351 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-10-16 11:24:46,352 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:24:46,352 INFO  L422         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 11:24:46,352 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2020-10-16 11:24:46,352 INFO  L429      AbstractCegarLoop]: === Iteration 8 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:24:46,352 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:24:46,353 INFO  L82        PathProgramCache]: Analyzing trace with hash -207198542, now seen corresponding path program 1 times
[2020-10-16 11:24:46,353 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:24:46,353 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971119447]
[2020-10-16 11:24:46,353 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:24:46,367 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:24:46,413 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-10-16 11:24:46,413 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971119447]
[2020-10-16 11:24:46,414 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 11:24:46,414 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 11:24:46,415 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243900192]
[2020-10-16 11:24:46,415 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-16 11:24:46,415 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:24:46,416 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-16 11:24:46,416 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-16 11:24:46,416 INFO  L87              Difference]: Start difference. First operand 130613 states and 677480 transitions. Second operand 5 states.
[2020-10-16 11:24:57,495 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:24:57,496 INFO  L93              Difference]: Finished difference Result 339201 states and 1759962 transitions.
[2020-10-16 11:24:57,496 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-10-16 11:24:57,496 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 13
[2020-10-16 11:24:57,496 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:24:59,726 INFO  L225             Difference]: With dead ends: 339201
[2020-10-16 11:24:59,726 INFO  L226             Difference]: Without dead ends: 339201
[2020-10-16 11:24:59,727 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2020-10-16 11:25:02,307 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 339201 states.
[2020-10-16 11:25:08,092 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 339201 to 187241.
[2020-10-16 11:25:08,092 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 187241 states.
[2020-10-16 11:25:20,703 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 187241 states to 187241 states and 988529 transitions.
[2020-10-16 11:25:20,703 INFO  L78                 Accepts]: Start accepts. Automaton has 187241 states and 988529 transitions. Word has length 13
[2020-10-16 11:25:20,703 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:25:20,703 INFO  L481      AbstractCegarLoop]: Abstraction has 187241 states and 988529 transitions.
[2020-10-16 11:25:20,703 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-16 11:25:20,703 INFO  L276                IsEmpty]: Start isEmpty. Operand 187241 states and 988529 transitions.
[2020-10-16 11:25:20,705 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-10-16 11:25:20,705 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:25:20,705 INFO  L422         BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 11:25:20,705 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2020-10-16 11:25:20,705 INFO  L429      AbstractCegarLoop]: === Iteration 9 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:25:20,705 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:25:20,705 INFO  L82        PathProgramCache]: Analyzing trace with hash -714283533, now seen corresponding path program 3 times
[2020-10-16 11:25:20,706 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:25:20,706 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240887170]
[2020-10-16 11:25:20,706 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:25:20,723 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:25:20,781 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-10-16 11:25:20,782 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240887170]
[2020-10-16 11:25:20,782 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905432123]
[2020-10-16 11:25:20,782 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-10-16 11:25:20,859 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2020-10-16 11:25:20,860 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2020-10-16 11:25:20,861 INFO  L263         TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-10-16 11:25:20,862 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-10-16 11:25:20,900 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-10-16 11:25:20,900 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences.
[2020-10-16 11:25:20,900 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8
[2020-10-16 11:25:20,901 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138950867]
[2020-10-16 11:25:20,901 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-16 11:25:20,901 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:25:20,901 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-16 11:25:20,901 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72
[2020-10-16 11:25:20,902 INFO  L87              Difference]: Start difference. First operand 187241 states and 988529 transitions. Second operand 5 states.
[2020-10-16 11:25:29,716 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:25:29,716 INFO  L93              Difference]: Finished difference Result 324012 states and 1699504 transitions.
[2020-10-16 11:25:29,716 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-10-16 11:25:29,717 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 13
[2020-10-16 11:25:29,717 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:25:31,846 INFO  L225             Difference]: With dead ends: 324012
[2020-10-16 11:25:31,846 INFO  L226             Difference]: Without dead ends: 324012
[2020-10-16 11:25:31,846 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110
[2020-10-16 11:25:39,795 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 324012 states.
[2020-10-16 11:25:45,520 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 324012 to 203980.
[2020-10-16 11:25:45,520 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 203980 states.
[2020-10-16 11:25:47,604 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 203980 states to 203980 states and 1071758 transitions.
[2020-10-16 11:25:47,605 INFO  L78                 Accepts]: Start accepts. Automaton has 203980 states and 1071758 transitions. Word has length 13
[2020-10-16 11:25:47,605 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:25:47,605 INFO  L481      AbstractCegarLoop]: Abstraction has 203980 states and 1071758 transitions.
[2020-10-16 11:25:47,605 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-16 11:25:47,605 INFO  L276                IsEmpty]: Start isEmpty. Operand 203980 states and 1071758 transitions.
[2020-10-16 11:25:47,607 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-10-16 11:25:47,607 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:25:47,607 INFO  L422         BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 11:25:47,814 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-10-16 11:25:47,815 INFO  L429      AbstractCegarLoop]: === Iteration 10 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:25:47,815 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:25:47,815 INFO  L82        PathProgramCache]: Analyzing trace with hash -842338344, now seen corresponding path program 1 times
[2020-10-16 11:25:47,816 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:25:47,816 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216970108]
[2020-10-16 11:25:47,816 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:25:47,824 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:25:47,845 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2020-10-16 11:25:47,845 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216970108]
[2020-10-16 11:25:47,846 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 11:25:47,846 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 11:25:47,846 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345425557]
[2020-10-16 11:25:47,846 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 11:25:47,846 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:25:47,846 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 11:25:47,847 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 11:25:47,847 INFO  L87              Difference]: Start difference. First operand 203980 states and 1071758 transitions. Second operand 3 states.
[2020-10-16 11:25:56,347 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:25:56,347 INFO  L93              Difference]: Finished difference Result 214092 states and 1094877 transitions.
[2020-10-16 11:25:56,347 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-10-16 11:25:56,347 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 14
[2020-10-16 11:25:56,348 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:25:58,084 INFO  L225             Difference]: With dead ends: 214092
[2020-10-16 11:25:58,085 INFO  L226             Difference]: Without dead ends: 214092
[2020-10-16 11:25:58,085 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 11:25:59,397 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 214092 states.
[2020-10-16 11:26:04,550 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 214092 to 200826.
[2020-10-16 11:26:04,550 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 200826 states.
[2020-10-16 11:26:06,637 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 200826 states to 200826 states and 1039664 transitions.
[2020-10-16 11:26:06,638 INFO  L78                 Accepts]: Start accepts. Automaton has 200826 states and 1039664 transitions. Word has length 14
[2020-10-16 11:26:06,638 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 11:26:06,638 INFO  L481      AbstractCegarLoop]: Abstraction has 200826 states and 1039664 transitions.
[2020-10-16 11:26:06,638 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 11:26:06,638 INFO  L276                IsEmpty]: Start isEmpty. Operand 200826 states and 1039664 transitions.
[2020-10-16 11:26:06,641 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-10-16 11:26:06,641 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 11:26:06,641 INFO  L422         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 11:26:06,641 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2020-10-16 11:26:06,641 INFO  L429      AbstractCegarLoop]: === Iteration 11 === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thrErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 11:26:06,641 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 11:26:06,642 INFO  L82        PathProgramCache]: Analyzing trace with hash -2128185923, now seen corresponding path program 1 times
[2020-10-16 11:26:06,642 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 11:26:06,642 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411830657]
[2020-10-16 11:26:06,642 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 11:26:06,649 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:26:06,670 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-10-16 11:26:06,671 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411830657]
[2020-10-16 11:26:06,671 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315009710]
[2020-10-16 11:26:06,671 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-10-16 11:26:06,721 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 11:26:06,722 INFO  L263         TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core
[2020-10-16 11:26:06,723 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2020-10-16 11:26:06,726 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2020-10-16 11:26:06,726 INFO  L219   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2020-10-16 11:26:06,726 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4
[2020-10-16 11:26:06,726 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633362272]
[2020-10-16 11:26:06,727 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-16 11:26:06,727 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 11:26:06,727 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-16 11:26:06,727 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-10-16 11:26:06,727 INFO  L87              Difference]: Start difference. First operand 200826 states and 1039664 transitions. Second operand 5 states.
[2020-10-16 11:26:17,020 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 11:26:17,020 INFO  L93              Difference]: Finished difference Result 345997 states and 1776480 transitions.
[2020-10-16 11:26:17,020 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-10-16 11:26:17,020 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 14
[2020-10-16 11:26:17,021 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 11:26:18,373 INFO  L225             Difference]: With dead ends: 345997
[2020-10-16 11:26:18,373 INFO  L226             Difference]: Without dead ends: 345997
[2020-10-16 11:26:18,373 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
Received shutdown request...
[2020-10-16 11:26:27,491 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 345997 states.
[2020-10-16 11:26:27,692 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2020-10-16 11:26:27,694 WARN  L546      AbstractCegarLoop]: Verification canceled
[2020-10-16 11:26:27,699 WARN  L235   ceAbstractionStarter]: Timeout
[2020-10-16 11:26:27,700 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:26:27 BasicIcfg
[2020-10-16 11:26:27,700 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-16 11:26:27,704 INFO  L168              Benchmark]: Toolchain (without parser) took 185010.15 ms. Allocated memory was 141.6 MB in the beginning and 5.2 GB in the end (delta: 5.1 GB). Free memory was 102.0 MB in the beginning and 3.1 GB in the end (delta: -3.0 GB). Peak memory consumption was 4.1 GB. Max. memory is 7.1 GB.
[2020-10-16 11:26:27,705 INFO  L168              Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-10-16 11:26:27,705 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 898.31 ms. Allocated memory was 141.6 MB in the beginning and 203.9 MB in the end (delta: 62.4 MB). Free memory was 101.8 MB in the beginning and 135.4 MB in the end (delta: -33.6 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB.
[2020-10-16 11:26:27,708 INFO  L168              Benchmark]: Boogie Procedure Inliner took 88.67 ms. Allocated memory is still 203.9 MB. Free memory was 135.4 MB in the beginning and 132.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB.
[2020-10-16 11:26:27,714 INFO  L168              Benchmark]: Boogie Preprocessor took 34.49 ms. Allocated memory is still 203.9 MB. Free memory was 132.8 MB in the beginning and 131.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
[2020-10-16 11:26:27,715 INFO  L168              Benchmark]: RCFGBuilder took 528.79 ms. Allocated memory is still 203.9 MB. Free memory was 131.6 MB in the beginning and 105.1 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB.
[2020-10-16 11:26:27,715 INFO  L168              Benchmark]: TraceAbstraction took 183453.57 ms. Allocated memory was 203.9 MB in the beginning and 5.2 GB in the end (delta: 5.0 GB). Free memory was 104.5 MB in the beginning and 3.1 GB in the end (delta: -3.0 GB). Peak memory consumption was 4.1 GB. Max. memory is 7.1 GB.
[2020-10-16 11:26:27,722 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.27 ms. Allocated memory is still 141.6 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 898.31 ms. Allocated memory was 141.6 MB in the beginning and 203.9 MB in the end (delta: 62.4 MB). Free memory was 101.8 MB in the beginning and 135.4 MB in the end (delta: -33.6 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB.
 * Boogie Procedure Inliner took 88.67 ms. Allocated memory is still 203.9 MB. Free memory was 135.4 MB in the beginning and 132.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 34.49 ms. Allocated memory is still 203.9 MB. Free memory was 132.8 MB in the beginning and 131.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 528.79 ms. Allocated memory is still 203.9 MB. Free memory was 131.6 MB in the beginning and 105.1 MB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 183453.57 ms. Allocated memory was 203.9 MB in the beginning and 5.2 GB in the end (delta: 5.0 GB). Free memory was 104.5 MB in the beginning and 3.1 GB in the end (delta: -3.0 GB). Peak memory consumption was 4.1 GB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    359 VarBasedMoverChecksPositive, 4 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 4 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 58 PlacesBefore, 12 PlacesAfterwards, 61 TransitionsBefore, 10 TransitionsAfterwards, 572 CoEnabledTransitionPairs, 5 FixpointIterations, 22 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 8 ConcurrentYvCompositions, 5 ChoiceCompositions, 64 TotalNumberOfCompositions, 458 MoverChecksTotal
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    1872 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 23 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 279 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 83 PlacesBefore, 28 PlacesAfterwards, 88 TransitionsBefore, 27 TransitionsAfterwards, 2548 CoEnabledTransitionPairs, 6 FixpointIterations, 24 TrivialSequentialCompositions, 36 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 11 ConcurrentYvCompositions, 6 ChoiceCompositions, 79 TotalNumberOfCompositions, 5928 MoverChecksTotal
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    3928 VarBasedMoverChecksPositive, 73 VarBasedMoverChecksNegative, 35 SemBasedMoverChecksPositive, 38 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 372 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.3s, 108 PlacesBefore, 39 PlacesAfterwards, 115 TransitionsBefore, 38 TransitionsAfterwards, 5928 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 16 ConcurrentYvCompositions, 8 ChoiceCompositions, 102 TotalNumberOfCompositions, 14612 MoverChecksTotal
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    6470 VarBasedMoverChecksPositive, 134 VarBasedMoverChecksNegative, 76 SemBasedMoverChecksPositive, 58 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 415 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.7s, 133 PlacesBefore, 50 PlacesAfterwards, 142 TransitionsBefore, 49 TransitionsAfterwards, 10712 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 71 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 22 ConcurrentYvCompositions, 10 ChoiceCompositions, 128 TotalNumberOfCompositions, 28741 MoverChecksTotal
  - TimeoutResultAtElement [Line: 987]: Timeout (TraceAbstraction)
    Unable to prove that call of __VERIFIER_error() unreachable (line 987). Cancelled while executing MinimizeSevpa.
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 2 procedures, 55 locations, 1 error locations. Started 4 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 183.2s, OverallIterations: 24, TraceHistogramMax: 4, AutomataDifference: 67.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 14.1s, HoareTripleCheckerStatistics: 1474 SDtfs, 1811 SDslu, 1804 SDs, 0 SdLazy, 2549 SolverSat, 86 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=203980occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 96.4s AutomataMinimizationTime, 21 MinimizatonAttempts, 482457 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 318 NumberOfCodeBlocks, 317 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 263 ConstructedInterpolants, 0 QuantifiedInterpolants, 10760 SizeOfPredicates, 10 NumberOfNonLiveVariables, 624 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 28 InterpolantComputations, 15 PerfectInterpolantSequences, 36/62 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 could not prove your program: Timeout
Completed graceful shutdown