/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/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i


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


This is Ultimate 0.1.25-b09bf87
[2020-10-16 12:08:45,758 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-10-16 12:08:45,760 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-16 12:08:45,783 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-16 12:08:45,783 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-16 12:08:45,784 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-16 12:08:45,785 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2020-10-16 12:08:45,795 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-16 12:08:45,795 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-16 12:08:45,796 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-16 12:08:45,798 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-16 12:08:45,800 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-16 12:08:45,801 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-16 12:08:45,802 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-16 12:08:45,803 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-10-16 12:08:45,804 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-16 12:08:45,807 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2020-10-16 12:08:45,807 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-16 12:08:45,808 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
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[2020-10-16 12:08:45,814 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-10-16 12:08:45,816 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-10-16 12:08:45,817 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA.epf
[2020-10-16 12:08:45,840 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-10-16 12:08:45,840 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-16 12:08:45,841 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-10-16 12:08:45,841 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-10-16 12:08:45,841 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-10-16 12:08:45,842 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-16 12:08:45,842 INFO  L138        SettingsManager]:  * sizeof long=4
[2020-10-16 12:08:45,842 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-10-16 12:08:45,842 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2020-10-16 12:08:45,842 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-10-16 12:08:45,843 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-10-16 12:08:45,843 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-16 12:08:45,843 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-10-16 12:08:45,843 INFO  L138        SettingsManager]:  * sizeof long double=12
[2020-10-16 12:08:45,843 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-10-16 12:08:45,844 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-10-16 12:08:45,844 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-10-16 12:08:45,844 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-16 12:08:45,844 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-10-16 12:08:45,844 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2020-10-16 12:08:45,845 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-10-16 12:08:45,845 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-16 12:08:45,845 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-16 12:08:45,845 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=Craig_NestedInterpolation
[2020-10-16 12:08:45,845 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-10-16 12:08:45,846 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-10-16 12:08:45,846 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-10-16 12:08:45,846 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK
[2020-10-16 12:08:45,846 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-16 12:08:46,106 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-16 12:08:46,118 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-16 12:08:46,121 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-16 12:08:46,122 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-10-16 12:08:46,123 INFO  L275        PluginConnector]: CDTParser initialized
[2020-10-16 12:08:46,124 INFO  L429   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i
[2020-10-16 12:08:46,186 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b589cbe7/8f68fb123d7748ad93058b6bb32b255c/FLAG3c0cd8efb
[2020-10-16 12:08:46,706 INFO  L306              CDTParser]: Found 1 translation units.
[2020-10-16 12:08:46,707 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i
[2020-10-16 12:08:46,729 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b589cbe7/8f68fb123d7748ad93058b6bb32b255c/FLAG3c0cd8efb
[2020-10-16 12:08:47,020 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9b589cbe7/8f68fb123d7748ad93058b6bb32b255c
[2020-10-16 12:08:47,030 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-16 12:08:47,031 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2020-10-16 12:08:47,032 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-16 12:08:47,033 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-16 12:08:47,036 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-16 12:08:47,037 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:08:47" (1/1) ...
[2020-10-16 12:08:47,039 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d3dc4dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:47, skipping insertion in model container
[2020-10-16 12:08:47,040 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:08:47" (1/1) ...
[2020-10-16 12:08:47,047 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-10-16 12:08:47,107 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-10-16 12:08:47,584 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-16 12:08:47,598 INFO  L203         MainTranslator]: Completed pre-run
[2020-10-16 12:08:47,659 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-10-16 12:08:47,737 INFO  L208         MainTranslator]: Completed translation
[2020-10-16 12:08:47,739 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:47 WrapperNode
[2020-10-16 12:08:47,739 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-16 12:08:47,740 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-10-16 12:08:47,740 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-10-16 12:08:47,740 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2020-10-16 12:08:47,749 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:47" (1/1) ...
[2020-10-16 12:08:47,791 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:47" (1/1) ...
[2020-10-16 12:08:47,814 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-10-16 12:08:47,815 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-16 12:08:47,815 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-16 12:08:47,815 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-10-16 12:08:47,824 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:47" (1/1) ...
[2020-10-16 12:08:47,824 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:47" (1/1) ...
[2020-10-16 12:08:47,827 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:47" (1/1) ...
[2020-10-16 12:08:47,828 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:47" (1/1) ...
[2020-10-16 12:08:47,835 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:47" (1/1) ...
[2020-10-16 12:08:47,837 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:47" (1/1) ...
[2020-10-16 12:08:47,839 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:47" (1/1) ...
[2020-10-16 12:08:47,843 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-16 12:08:47,843 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-16 12:08:47,843 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-10-16 12:08:47,843 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-10-16 12:08:47,844 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:47" (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 12:08:47,916 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-10-16 12:08:47,916 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-10-16 12:08:47,916 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-16 12:08:47,917 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-16 12:08:47,917 INFO  L130     BoogieDeclarations]: Found specification of procedure P0
[2020-10-16 12:08:47,917 INFO  L138     BoogieDeclarations]: Found implementation of procedure P0
[2020-10-16 12:08:47,918 INFO  L130     BoogieDeclarations]: Found specification of procedure P1
[2020-10-16 12:08:47,918 INFO  L138     BoogieDeclarations]: Found implementation of procedure P1
[2020-10-16 12:08:47,919 INFO  L130     BoogieDeclarations]: Found specification of procedure P2
[2020-10-16 12:08:47,919 INFO  L138     BoogieDeclarations]: Found implementation of procedure P2
[2020-10-16 12:08:47,920 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-10-16 12:08:47,920 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-16 12:08:47,920 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-16 12:08:47,922 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 12:08:48,292 INFO  L293             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-16 12:08:48,292 INFO  L298             CfgBuilder]: Removed 8 assume(true) statements.
[2020-10-16 12:08:48,295 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:08:48 BoogieIcfgContainer
[2020-10-16 12:08:48,295 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-16 12:08:48,298 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-16 12:08:48,298 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-10-16 12:08:48,302 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-10-16 12:08:48,303 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:08:47" (1/3) ...
[2020-10-16 12:08:48,303 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27008c04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:08:48, skipping insertion in model container
[2020-10-16 12:08:48,304 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:08:47" (2/3) ...
[2020-10-16 12:08:48,304 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27008c04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:08:48, skipping insertion in model container
[2020-10-16 12:08:48,304 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:08:48" (3/3) ...
[2020-10-16 12:08:48,307 INFO  L111   eAbstractionObserver]: Analyzing ICFG safe011_tso.oepc.i
[2020-10-16 12:08:48,317 WARN  L153   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-10-16 12:08:48,317 INFO  L164   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-16 12:08:48,323 INFO  L176   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-16 12:08:48,324 INFO  L348   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-10-16 12:08:48,350 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,350 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,350 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,351 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,351 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,352 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,352 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,352 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,353 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,353 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,353 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,354 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,354 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,354 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,354 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,355 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,355 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,355 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,359 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,359 WARN  L313   ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,360 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,360 WARN  L313   ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,366 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,366 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,367 WARN  L313   ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,367 WARN  L313   ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,372 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,373 WARN  L313   ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,373 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,373 WARN  L313   ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-10-16 12:08:48,375 INFO  L149    ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2020-10-16 12:08:48,389 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-10-16 12:08:48,409 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-10-16 12:08:48,409 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-10-16 12:08:48,409 INFO  L379      AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-16 12:08:48,409 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-16 12:08:48,409 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-16 12:08:48,410 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-10-16 12:08:48,410 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-16 12:08:48,410 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-16 12:08:48,423 INFO  L137   etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation.
[2020-10-16 12:08:48,424 INFO  L144   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow
[2020-10-16 12:08:48,426 INFO  L111        LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 69 transitions, 153 flow
[2020-10-16 12:08:48,428 INFO  L71            FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow
[2020-10-16 12:08:48,470 INFO  L129       PetriNetUnfolder]: 2/66 cut-off events.
[2020-10-16 12:08:48,470 INFO  L130       PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-10-16 12:08:48,476 INFO  L80            FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. 
[2020-10-16 12:08:48,479 INFO  L117        LiptonReduction]: Number of co-enabled transitions 1260
[2020-10-16 12:08:49,775 INFO  L132        LiptonReduction]: Checked pairs total: 2407
[2020-10-16 12:08:49,775 INFO  L134        LiptonReduction]: Total number of compositions: 58
[2020-10-16 12:08:49,782 INFO  L100   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow
[2020-10-16 12:08:49,807 INFO  L122   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states.
[2020-10-16 12:08:49,809 INFO  L276                IsEmpty]: Start isEmpty. Operand 298 states.
[2020-10-16 12:08:49,816 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-10-16 12:08:49,817 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 12:08:49,818 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:08:49,818 INFO  L429      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:08:49,823 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:08:49,823 INFO  L82        PathProgramCache]: Analyzing trace with hash 573122436, now seen corresponding path program 1 times
[2020-10-16 12:08:49,833 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:08:49,833 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131746200]
[2020-10-16 12:08:49,834 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:08:49,958 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:08:50,038 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 12:08:50,038 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131746200]
[2020-10-16 12:08:50,039 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:08:50,039 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-10-16 12:08:50,040 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509993360]
[2020-10-16 12:08:50,045 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 12:08:50,045 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:08:50,060 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 12:08:50,060 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 12:08:50,062 INFO  L87              Difference]: Start difference. First operand 298 states. Second operand 3 states.
[2020-10-16 12:08:50,104 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:08:50,105 INFO  L93              Difference]: Finished difference Result 290 states and 834 transitions.
[2020-10-16 12:08:50,105 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-10-16 12:08:50,107 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 8
[2020-10-16 12:08:50,107 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:08:50,122 INFO  L225             Difference]: With dead ends: 290
[2020-10-16 12:08:50,122 INFO  L226             Difference]: Without dead ends: 226
[2020-10-16 12:08:50,123 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:08:50,147 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 226 states.
[2020-10-16 12:08:50,189 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226.
[2020-10-16 12:08:50,191 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 226 states.
[2020-10-16 12:08:50,195 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions.
[2020-10-16 12:08:50,196 INFO  L78                 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8
[2020-10-16 12:08:50,197 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:08:50,197 INFO  L481      AbstractCegarLoop]: Abstraction has 226 states and 626 transitions.
[2020-10-16 12:08:50,197 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 12:08:50,198 INFO  L276                IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions.
[2020-10-16 12:08:50,199 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-10-16 12:08:50,199 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 12:08:50,199 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:08:50,199 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-16 12:08:50,200 INFO  L429      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:08:50,200 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:08:50,200 INFO  L82        PathProgramCache]: Analyzing trace with hash 572259518, now seen corresponding path program 1 times
[2020-10-16 12:08:50,200 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:08:50,201 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672400393]
[2020-10-16 12:08:50,201 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:08:50,239 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:08:50,278 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 12:08:50,279 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672400393]
[2020-10-16 12:08:50,279 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:08:50,279 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-10-16 12:08:50,280 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099507046]
[2020-10-16 12:08:50,281 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 12:08:50,281 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:08:50,282 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 12:08:50,282 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 12:08:50,282 INFO  L87              Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states.
[2020-10-16 12:08:50,290 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:08:50,291 INFO  L93              Difference]: Finished difference Result 212 states and 578 transitions.
[2020-10-16 12:08:50,291 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-10-16 12:08:50,291 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 9
[2020-10-16 12:08:50,292 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:08:50,294 INFO  L225             Difference]: With dead ends: 212
[2020-10-16 12:08:50,294 INFO  L226             Difference]: Without dead ends: 212
[2020-10-16 12:08:50,295 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:08:50,298 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 212 states.
[2020-10-16 12:08:50,309 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212.
[2020-10-16 12:08:50,310 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 212 states.
[2020-10-16 12:08:50,311 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 578 transitions.
[2020-10-16 12:08:50,311 INFO  L78                 Accepts]: Start accepts. Automaton has 212 states and 578 transitions. Word has length 9
[2020-10-16 12:08:50,312 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:08:50,312 INFO  L481      AbstractCegarLoop]: Abstraction has 212 states and 578 transitions.
[2020-10-16 12:08:50,312 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 12:08:50,312 INFO  L276                IsEmpty]: Start isEmpty. Operand 212 states and 578 transitions.
[2020-10-16 12:08:50,313 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2020-10-16 12:08:50,314 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 12:08:50,314 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:08:50,314 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-10-16 12:08:50,314 INFO  L429      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:08:50,314 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:08:50,315 INFO  L82        PathProgramCache]: Analyzing trace with hash 560175129, now seen corresponding path program 1 times
[2020-10-16 12:08:50,315 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:08:50,315 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336041718]
[2020-10-16 12:08:50,315 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:08:50,336 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:08:50,390 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 12:08:50,390 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336041718]
[2020-10-16 12:08:50,390 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:08:50,391 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 12:08:50,391 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347375847]
[2020-10-16 12:08:50,391 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 12:08:50,392 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:08:50,392 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 12:08:50,392 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 12:08:50,392 INFO  L87              Difference]: Start difference. First operand 212 states and 578 transitions. Second operand 4 states.
[2020-10-16 12:08:50,414 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:08:50,414 INFO  L93              Difference]: Finished difference Result 242 states and 634 transitions.
[2020-10-16 12:08:50,415 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-10-16 12:08:50,415 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 10
[2020-10-16 12:08:50,415 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:08:50,417 INFO  L225             Difference]: With dead ends: 242
[2020-10-16 12:08:50,417 INFO  L226             Difference]: Without dead ends: 146
[2020-10-16 12:08:50,417 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-10-16 12:08:50,419 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 146 states.
[2020-10-16 12:08:50,426 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146.
[2020-10-16 12:08:50,426 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 146 states.
[2020-10-16 12:08:50,427 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions.
[2020-10-16 12:08:50,427 INFO  L78                 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 10
[2020-10-16 12:08:50,428 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:08:50,428 INFO  L481      AbstractCegarLoop]: Abstraction has 146 states and 362 transitions.
[2020-10-16 12:08:50,428 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 12:08:50,428 INFO  L276                IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions.
[2020-10-16 12:08:50,429 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2020-10-16 12:08:50,429 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 12:08:50,429 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:08:50,430 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-10-16 12:08:50,430 INFO  L429      AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:08:50,430 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:08:50,430 INFO  L82        PathProgramCache]: Analyzing trace with hash -1242480203, now seen corresponding path program 1 times
[2020-10-16 12:08:50,430 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:08:50,431 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601821841]
[2020-10-16 12:08:50,431 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:08:50,462 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:08:50,507 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 12:08:50,508 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601821841]
[2020-10-16 12:08:50,510 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:08:50,510 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2020-10-16 12:08:50,510 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820981669]
[2020-10-16 12:08:50,510 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 12:08:50,511 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:08:50,511 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 12:08:50,511 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 12:08:50,511 INFO  L87              Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states.
[2020-10-16 12:08:50,532 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:08:50,532 INFO  L93              Difference]: Finished difference Result 144 states and 355 transitions.
[2020-10-16 12:08:50,532 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-10-16 12:08:50,532 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 11
[2020-10-16 12:08:50,533 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:08:50,534 INFO  L225             Difference]: With dead ends: 144
[2020-10-16 12:08:50,534 INFO  L226             Difference]: Without dead ends: 144
[2020-10-16 12:08:50,535 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 12:08:50,538 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 144 states.
[2020-10-16 12:08:50,550 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144.
[2020-10-16 12:08:50,551 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 144 states.
[2020-10-16 12:08:50,552 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 355 transitions.
[2020-10-16 12:08:50,552 INFO  L78                 Accepts]: Start accepts. Automaton has 144 states and 355 transitions. Word has length 11
[2020-10-16 12:08:50,552 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:08:50,552 INFO  L481      AbstractCegarLoop]: Abstraction has 144 states and 355 transitions.
[2020-10-16 12:08:50,552 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 12:08:50,552 INFO  L276                IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions.
[2020-10-16 12:08:50,555 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-10-16 12:08:50,556 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 12:08:50,556 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:08:50,556 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-10-16 12:08:50,556 INFO  L429      AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:08:50,557 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:08:50,557 INFO  L82        PathProgramCache]: Analyzing trace with hash 389651423, now seen corresponding path program 1 times
[2020-10-16 12:08:50,557 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:08:50,557 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528847954]
[2020-10-16 12:08:50,557 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:08:50,603 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:08:50,673 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 12:08:50,674 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528847954]
[2020-10-16 12:08:50,674 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:08:50,674 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 12:08:50,675 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737592783]
[2020-10-16 12:08:50,675 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-10-16 12:08:50,675 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:08:50,675 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-10-16 12:08:50,676 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-10-16 12:08:50,676 INFO  L87              Difference]: Start difference. First operand 144 states and 355 transitions. Second operand 4 states.
[2020-10-16 12:08:50,704 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:08:50,704 INFO  L93              Difference]: Finished difference Result 164 states and 374 transitions.
[2020-10-16 12:08:50,705 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-10-16 12:08:50,705 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 12
[2020-10-16 12:08:50,705 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:08:50,706 INFO  L225             Difference]: With dead ends: 164
[2020-10-16 12:08:50,706 INFO  L226             Difference]: Without dead ends: 124
[2020-10-16 12:08:50,707 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-10-16 12:08:50,708 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 124 states.
[2020-10-16 12:08:50,712 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124.
[2020-10-16 12:08:50,712 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 124 states.
[2020-10-16 12:08:50,713 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 281 transitions.
[2020-10-16 12:08:50,713 INFO  L78                 Accepts]: Start accepts. Automaton has 124 states and 281 transitions. Word has length 12
[2020-10-16 12:08:50,713 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:08:50,714 INFO  L481      AbstractCegarLoop]: Abstraction has 124 states and 281 transitions.
[2020-10-16 12:08:50,714 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-10-16 12:08:50,714 INFO  L276                IsEmpty]: Start isEmpty. Operand 124 states and 281 transitions.
[2020-10-16 12:08:50,715 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2020-10-16 12:08:50,715 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 12:08:50,715 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:08:50,715 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-10-16 12:08:50,715 INFO  L429      AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:08:50,716 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:08:50,716 INFO  L82        PathProgramCache]: Analyzing trace with hash -806373780, now seen corresponding path program 1 times
[2020-10-16 12:08:50,716 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:08:50,716 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745372738]
[2020-10-16 12:08:50,716 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:08:50,732 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:08:50,787 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 12:08:50,787 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745372738]
[2020-10-16 12:08:50,787 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:08:50,788 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-10-16 12:08:50,789 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012530226]
[2020-10-16 12:08:50,789 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-10-16 12:08:50,789 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:08:50,790 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-10-16 12:08:50,790 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-10-16 12:08:50,790 INFO  L87              Difference]: Start difference. First operand 124 states and 281 transitions. Second operand 5 states.
[2020-10-16 12:08:50,835 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:08:50,835 INFO  L93              Difference]: Finished difference Result 122 states and 258 transitions.
[2020-10-16 12:08:50,836 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2020-10-16 12:08:50,836 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 13
[2020-10-16 12:08:50,836 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:08:50,837 INFO  L225             Difference]: With dead ends: 122
[2020-10-16 12:08:50,837 INFO  L226             Difference]: Without dead ends: 97
[2020-10-16 12:08:50,837 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-10-16 12:08:50,838 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 97 states.
[2020-10-16 12:08:50,844 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97.
[2020-10-16 12:08:50,844 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 97 states.
[2020-10-16 12:08:50,845 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions.
[2020-10-16 12:08:50,845 INFO  L78                 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 13
[2020-10-16 12:08:50,845 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:08:50,845 INFO  L481      AbstractCegarLoop]: Abstraction has 97 states and 202 transitions.
[2020-10-16 12:08:50,845 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-10-16 12:08:50,845 INFO  L276                IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions.
[2020-10-16 12:08:50,846 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2020-10-16 12:08:50,846 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 12:08:50,846 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:08:50,847 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2020-10-16 12:08:50,847 INFO  L429      AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:08:50,849 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:08:50,849 INFO  L82        PathProgramCache]: Analyzing trace with hash -1341104517, now seen corresponding path program 1 times
[2020-10-16 12:08:50,849 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:08:50,850 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338914436]
[2020-10-16 12:08:50,851 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:08:50,866 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:08:50,887 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 12:08:50,888 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338914436]
[2020-10-16 12:08:50,888 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:08:50,888 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 12:08:50,888 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541698386]
[2020-10-16 12:08:50,889 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 12:08:50,889 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:08:50,889 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 12:08:50,889 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 12:08:50,889 INFO  L87              Difference]: Start difference. First operand 97 states and 202 transitions. Second operand 3 states.
[2020-10-16 12:08:50,901 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:08:50,901 INFO  L93              Difference]: Finished difference Result 115 states and 230 transitions.
[2020-10-16 12:08:50,901 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-10-16 12:08:50,902 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 14
[2020-10-16 12:08:50,902 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:08:50,902 INFO  L225             Difference]: With dead ends: 115
[2020-10-16 12:08:50,903 INFO  L226             Difference]: Without dead ends: 98
[2020-10-16 12:08:50,903 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 12:08:50,904 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 98 states.
[2020-10-16 12:08:50,907 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96.
[2020-10-16 12:08:50,907 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 96 states.
[2020-10-16 12:08:50,908 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 193 transitions.
[2020-10-16 12:08:50,908 INFO  L78                 Accepts]: Start accepts. Automaton has 96 states and 193 transitions. Word has length 14
[2020-10-16 12:08:50,908 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:08:50,909 INFO  L481      AbstractCegarLoop]: Abstraction has 96 states and 193 transitions.
[2020-10-16 12:08:50,909 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 12:08:50,909 INFO  L276                IsEmpty]: Start isEmpty. Operand 96 states and 193 transitions.
[2020-10-16 12:08:50,909 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-10-16 12:08:50,909 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 12:08:50,910 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:08:50,910 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2020-10-16 12:08:50,910 INFO  L429      AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:08:50,910 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:08:50,910 INFO  L82        PathProgramCache]: Analyzing trace with hash -1362110025, now seen corresponding path program 1 times
[2020-10-16 12:08:50,911 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:08:50,911 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046225410]
[2020-10-16 12:08:50,911 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:08:50,961 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:08:51,039 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 12:08:51,040 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046225410]
[2020-10-16 12:08:51,040 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:08:51,040 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-10-16 12:08:51,041 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864276702]
[2020-10-16 12:08:51,041 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 6 states
[2020-10-16 12:08:51,041 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:08:51,041 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2020-10-16 12:08:51,042 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2020-10-16 12:08:51,042 INFO  L87              Difference]: Start difference. First operand 96 states and 193 transitions. Second operand 6 states.
[2020-10-16 12:08:51,101 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:08:51,101 INFO  L93              Difference]: Finished difference Result 92 states and 183 transitions.
[2020-10-16 12:08:51,101 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2020-10-16 12:08:51,102 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 15
[2020-10-16 12:08:51,102 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:08:51,103 INFO  L225             Difference]: With dead ends: 92
[2020-10-16 12:08:51,103 INFO  L226             Difference]: Without dead ends: 36
[2020-10-16 12:08:51,103 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2020-10-16 12:08:51,104 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2020-10-16 12:08:51,105 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36.
[2020-10-16 12:08:51,105 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 36 states.
[2020-10-16 12:08:51,106 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions.
[2020-10-16 12:08:51,106 INFO  L78                 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15
[2020-10-16 12:08:51,106 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:08:51,106 INFO  L481      AbstractCegarLoop]: Abstraction has 36 states and 56 transitions.
[2020-10-16 12:08:51,106 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2020-10-16 12:08:51,107 INFO  L276                IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions.
[2020-10-16 12:08:51,108 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2020-10-16 12:08:51,109 INFO  L414         BasicCegarLoop]: Found error trace
[2020-10-16 12:08:51,109 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-10-16 12:08:51,111 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2020-10-16 12:08:51,111 INFO  L429      AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-16 12:08:51,111 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-10-16 12:08:51,111 INFO  L82        PathProgramCache]: Analyzing trace with hash -1202444330, now seen corresponding path program 1 times
[2020-10-16 12:08:51,117 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-10-16 12:08:51,117 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245726708]
[2020-10-16 12:08:51,117 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-16 12:08:51,143 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-10-16 12:08:51,184 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 12:08:51,185 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245726708]
[2020-10-16 12:08:51,185 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-10-16 12:08:51,185 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-10-16 12:08:51,185 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851846670]
[2020-10-16 12:08:51,186 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-10-16 12:08:51,188 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-10-16 12:08:51,188 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-10-16 12:08:51,189 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-10-16 12:08:51,189 INFO  L87              Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 3 states.
[2020-10-16 12:08:51,192 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-10-16 12:08:51,193 INFO  L93              Difference]: Finished difference Result 35 states and 55 transitions.
[2020-10-16 12:08:51,193 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-10-16 12:08:51,193 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 17
[2020-10-16 12:08:51,193 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-10-16 12:08:51,194 INFO  L225             Difference]: With dead ends: 35
[2020-10-16 12:08:51,194 INFO  L226             Difference]: Without dead ends: 0
[2020-10-16 12:08:51,194 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 12:08:51,195 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-10-16 12:08:51,195 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-10-16 12:08:51,196 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-10-16 12:08:51,196 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-10-16 12:08:51,197 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17
[2020-10-16 12:08:51,197 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-10-16 12:08:51,197 INFO  L481      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-10-16 12:08:51,197 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-10-16 12:08:51,197 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-10-16 12:08:51,198 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2020-10-16 12:08:51,200 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2020-10-16 12:08:51,204 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:08:51 BasicIcfg
[2020-10-16 12:08:51,204 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-16 12:08:51,208 INFO  L168              Benchmark]: Toolchain (without parser) took 4174.92 ms. Allocated memory was 140.5 MB in the beginning and 248.5 MB in the end (delta: 108.0 MB). Free memory was 101.8 MB in the beginning and 191.5 MB in the end (delta: -89.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 7.1 GB.
[2020-10-16 12:08:51,209 INFO  L168              Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-10-16 12:08:51,210 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 706.90 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.6 MB in the beginning and 157.9 MB in the end (delta: -56.3 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB.
[2020-10-16 12:08:51,211 INFO  L168              Benchmark]: Boogie Procedure Inliner took 74.70 ms. Allocated memory is still 203.4 MB. Free memory was 157.9 MB in the beginning and 155.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
[2020-10-16 12:08:51,217 INFO  L168              Benchmark]: Boogie Preprocessor took 28.13 ms. Allocated memory is still 203.4 MB. Free memory was 155.9 MB in the beginning and 154.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
[2020-10-16 12:08:51,218 INFO  L168              Benchmark]: RCFGBuilder took 451.92 ms. Allocated memory is still 203.4 MB. Free memory was 154.6 MB in the beginning and 132.4 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB.
[2020-10-16 12:08:51,219 INFO  L168              Benchmark]: TraceAbstraction took 2906.16 ms. Allocated memory was 203.4 MB in the beginning and 248.5 MB in the end (delta: 45.1 MB). Free memory was 131.7 MB in the beginning and 191.5 MB in the end (delta: -59.8 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-10-16 12:08:51,232 INFO  L336   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.21 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 706.90 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.6 MB in the beginning and 157.9 MB in the end (delta: -56.3 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB.
 * Boogie Procedure Inliner took 74.70 ms. Allocated memory is still 203.4 MB. Free memory was 157.9 MB in the beginning and 155.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 28.13 ms. Allocated memory is still 203.4 MB. Free memory was 155.9 MB in the beginning and 154.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 451.92 ms. Allocated memory is still 203.4 MB. Free memory was 154.6 MB in the beginning and 132.4 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB.
 * TraceAbstraction took 2906.16 ms. Allocated memory was 203.4 MB in the beginning and 248.5 MB in the end (delta: 45.1 MB). Free memory was 131.7 MB in the beginning and 191.5 MB in the end (delta: -59.8 MB). There was no memory consumed. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: PetriNetLargeBlockEncoding benchmarks
    657 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 38 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.3s, 77 PlacesBefore, 31 PlacesAfterwards, 69 TransitionsBefore, 21 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 58 TotalNumberOfCompositions, 2407 MoverChecksTotal
  - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable
    For all program executions holds that call of __VERIFIER_error() unreachable at this location
  - AllSpecificationsHoldResult: All specifications hold
    1 specifications checked. All of them hold
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 161 SDtfs, 126 SDslu, 180 SDs, 0 SdLazy, 96 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 3000 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...